Tag Archives: Amazon Sagemaker

Protein similarity search using ProtT5-XL-UniRef50 and Amazon OpenSearch Service

Post Syndicated from Camillo Anania original https://aws.amazon.com/blogs/big-data/protein-similarity-search-using-prott5-xl-uniref50-and-amazon-opensearch-service/

A protein is a sequence of amino acids that, when chained together, creates a 3D structure. This 3D structure allows the protein to bind to other structures within the body and initiate changes. This binding is core to the working of many drugs.

A common workflow within drug discovery is searching for similar proteins, because similar proteins likely have similar properties. Given an initial protein, researchers often look for variations that exhibit stronger binding, better solubility, or reduced toxicity. Despite advances in protein structure prediction, it’s still sometimes necessary to predict protein properties based on sequence alone. Thus, there is a need to quickly and at-scale get similar sequences based on an input sequence. In this blog post, we propose a solution based on Amazon OpenSearch Service for similarity search and the pretrained model ProtT5-XL-UniRef50, which we will use to generate embeddings. A repository providing such solution is available here. ProtT5-XL-UniRef50 is based on the t5-3b model and was pretrained on a large corpus of protein sequences in a self-supervised fashion.

Before diving into our solution, it’s important to understand what embeddings are and why they’re crucial for our task. Embeddings are dense vector representations of objects—proteins in our case—that capture the essence of their properties in a continuous vector space. An embedding is essentially a compact vector representation that encapsulates the significant features of an object, making it easier to process and analyze. Embeddings play an important role in understanding and processing complex data. They not only reduce dimensionality but also capture and encode intrinsic properties. This means that objects (such as words or proteins) with similar characteristics result in embeddings that are closer in the vector space. This proximity allows us to perform similarity searches efficiently, making embeddings invaluable for identifying relationships and patterns in large datasets.

Consider the analogy of fruits and their properties. In an embedding space, fruits such as mandarins and oranges would be close to each other because they share some characteristics, such as being round, color, and having similar nutritional properties. Similarly, bananas would be close to plantains, reflecting their shared properties. Through embeddings, we can understand and explore these relationships intuitively.

ProtT5-XL-UniRef50 is a machine learning (ML) model specifically designed to understand the language of proteins by converting protein sequences into multidimensional embeddings. These embeddings capture biological properties, allowing us to identify proteins with similar functions or structures in a multi-dimensional space because similar proteins will be encoded close together. This direct encoding of proteins into embeddings is crucial for our similarity search, providing a robust foundation for identifying potential drug targets or understanding protein functions.

Embeddings for the UniProtKB/Swiss-Prot protein database, which we use for this post, have been pre-computed and are available for download. If you have your own novel proteins, you can compute embeddings using ProtT5-XL-UniRef50, and then use these pre-computed embeddings to find known proteins with similar properties

In this post, we outline the broad functionalities of the solution and its components. Following this, we provide a brief explanation of what embeddings are, discussing the specific model used in our example. We then show how you can run this model on Amazon SageMaker. In addition, we dive into how to use the OpenSearch Service as a vector database. Finally, we demonstrate some practical examples of running similarity searches on protein sequences.

Solution overview

Let’s walk through the solution and all its components. Code for this solution is available on GitHub.

  1. We use OpenSearch Service vector database (DB) capabilities to store a sample of 20 thousand pre-calculated embeddings. These will be used to demonstrate similarity search. OpenSearch Service has advanced vector DB capabilities supporting multiple popular vector DB algorithms. For an overview of such capabilities see Amazon OpenSearch Service’s vector database capabilities explained.
  2. The open source prot_t5_xl_uniref50 ML model, hosted on Huggingface Hub, was used to calculate protein embeddings. We use the SageMaker Huggingface Inference Toolkit to quickly customize and deploy the model on SageMaker.
  3. The model is deployed and the solution is ready to calculate embeddings on any input protein sequence and perform similarity search against the protein embeddings we have preloaded on OpenSearch Service.
  4. We use a SageMaker Studio notebook to show how to deploy the model on SageMaker and then use an endpoint to extract protein features in the form of embeddings.
  5. After we have generated the embeddings in real time from the SageMaker endpoint, we run a query on OpenSearch Service to determine the five most similar proteins currently stored on OpenSearch Service index.
  6. Finally, the user can see the result directly from the SageMaker Studio notebook.
  7. To understand if the similarity search works well, we choose the Immunoglobulin Heavy Diversity 2/OR15-2A protein and we calculate its embeddings. The embeddings returned by the model are pre-residue, which is a detailed level of analysis where each individual residue (amino acid) in the protein is considered. In our case, we want to focus on the overall structure, function, and properties of the protein, so we calculate the per-protein embeddings. We achieve that by doing dimensionality reduction, calculating the mean overall per-residue features. Finally, we use the resulting embeddings to perform a similarity search and the first five proteins ordered by similarity are:
    • Immunoglobulin Heavy Diversity 3/OR15-3A
    • T Cell Receptor Gamma Joining 2
    • T Cell Receptor Alpha Joining 1
    • T Cell Receptor Alpha Joining 11
    • T Cell Receptor Alpha Joining 50

These are all immune cells with T cell receptors being a subtype of immunoglobulin. The similarity surfaced proteins that are all bio-functionally similar.

Costs and clean up

The solution we just walked through creates an OpenSearch Service domain which is billed according to number and instance type selected during creation time, see the OpenSearch Service Pricing page for the rate of those. You will also be charged for the SageMaker endpoint created by the deploy-and-similarity-search notebook, which is currently using a ml.g4dn.8xlarge instance type. See SageMaker pricing for details.

Finally, you are charged for the SageMaker Studio Notebooks according to the instance type you are using as detailed on the pricing page.

To clean up the resources created by this solution:

Conclusion

In this blog post we described a solution capable of calculating protein embeddings and performing similarity searches to find similar proteins. The solution uses the open source ProtT5-XL-UniRef50 model to calculate the embeddings and it deploys it on SageMaker Inference. We used OpenSearch Service as the vector DB. OpenSearch Service is pre-populated with 20 thousand human proteins from UniProt. Finally, the solution was validated by performing a similarity search on the Immunoglobulin Heavy Diversity 2/OR15-2A protein. We successfully evaluated that the proteins returned from OpenSearch Service are all in the immunoglobulin family and are bio-functionally similar. Code for this solution is available in GitHub.

The solution can be further tuned by testing different supported OpenSearch Service KNN algorithms and scaled by importing additional protein embeddings into OpenSearch Service indexes.

Resources:

  • Elnaggar A, et al. “ProtTrans: Toward Understanding the Language of Life Through Self-Supervised Learning”. IEEE Trans Pattern Anal Mach Intell. 2020.
  • Mikolov, T.; Yih, W.; Zweig, G. “Linguistic Regularities in Continuous Space Word Representations”. HLT-Naacl: 746–751. 2013.

About the Authors

that's meCamillo Anania is a Senior Solutions Architect at AWS. He is a tech enthusiast who loves helping healthcare and life science startups get the most out of the cloud. With a knack for cloud technologies, he’s all about making sure these startups can thrive and grow by leveraging the best cloud solutions. He is excited about the new wave of use cases and possibilities unlocked by GenAI and does not miss a chance to dive into them.

Adam McCarthy is the EMEA Tech Leader for Healthcare and Life Sciences Startups at AWS. He has over 15 years’ experience researching and implementing machine learning, HPC, and scientific computing environments, especially in academia, hospitals, and drug discovery.

AWS Weekly Roundup: Amazon S3 Access Grants, AWS Lambda, European Sovereign Cloud Region, and more (July 8, 2024).

Post Syndicated from Sébastien Stormacq original https://aws.amazon.com/blogs/aws/aws-weekly-roundup-amazon-s3-access-grants-aws-lambda-european-sovereign-cloud-region-and-more-july-8-2024/

I counted only 21 AWS news since last Monday, most of them being Regional expansions of existing services and capabilities. I hope you enjoyed a relatively quiet week, because this one will be busier.

This week, we’re welcoming our customers and partners at the Jacob Javits Convention Center for the AWS Summit New York on Wednesday, July 10. I can tell you there is a stream of announcements coming, if I judge by the number of AWS News Blog posts ready to be published.

I am writing these lines just before packing my bag to attend the AWS Community Day in Douala, Cameroon next Saturday. I can’t wait to meet our customers and partners, students, and the whole AWS community there.

But for now, let’s look at last week’s new announcements.

Last week’s launches
Here are the launches that got my attention.

Amazon Simple Storage Service (Amazon S3) Access Grants now integrate with Amazon SageMaker and open souce Python frameworksAmazon S3 Access Grants maps identities in directories such as Active Directory or AWS Identity and Access Management (IAM) principals, to datasets in S3. The integration with Amazon SageMaker Studio for machine learning (ML) helps you map identities to your machine learning (ML) datasets in S3. The integration with the AWS SDK for Python (Boto3) plugin replaces any custom code required to manage data permissions, so you can use S3 Access Grants in open source Python frameworks such as Django, TensorFlow, NumPy, Pandas, and more.

AWS Lambda introduces new controls to make it easier to search, filter, and aggregate Lambda function logsYou can now capture your Lambda logs in JSON structured format without bringing your own logging libraries. You can also control the log level (for example, ERROR, DEBUG, or INFO) of your Lambda logs without making any code changes. Lastly, you can choose the Amazon CloudWatch log group to which Lambda sends your logs.

Amazon DataZone introduces fine-grained access controlAmazon DataZone has introduced fine-grained access control, providing data owners granular control over their data at row and column levels. You use Amazon DataZone to catalog, discover, analyze, share, and govern data at scale across organizational boundaries with governance and access controls. Data owners can now restrict access to specific records of data instead of granting access to an entire dataset.

AWS Direct Connect proposes native 400 Gbps dedicated connections at select locationsAWS Direct Connect provides private, high-bandwidth connectivity between AWS and your data center, office, or colocation facility. Native 400 Gbps connections provide higher bandwidth without the operational overhead of managing multiple 100 Gbps connections in a link aggregation group. The increased capacity delivered by 400 Gbps connections is particularly beneficial to applications that transfer large-scale datasets, such as for ML and large language model (LLM) training or advanced driver assistance systems for autonomous vehicles.

For a full list of AWS announcements, be sure to keep an eye on the What’s New at AWS page.

Other AWS news
Here are some additional news items that you might find interesting:

The list of services available at launch in the upcoming AWS Europe Sovereign Cloud Region is available – we shared the list of AWS services that will be initially available at launch in the new AWS European Sovereign Cloud Region. The list has no surprises. Services for security, networking, storage, computing, containers, artificial intelligence (AI), and serverless will be available at launch. We are building the AWS European Sovereign Cloud to offer public sector organizations and customers in highly regulated industries further choice to help them meet their unique digital sovereignty requirements, as well as stringent data residency, operational autonomy, and resiliency requirements. This is an investment of 7.8 billion euros (approximately $8.46 billion). The new Region will be available by the end of 2025.

Upcoming AWS events
Check your calendars and sign up for upcoming AWS events:

AWS Summits – Join free online and in-person events that bring the cloud computing community together to connect, collaborate, and learn about AWS. To learn more about future AWS Summit events, visit the AWS Summit page. Register in your nearest city: New York (July 10), Bogotá (July 18), and Taipei (July 23–24).

AWS Community Days – Join community-led conferences that feature technical discussions, workshops, and hands-on labs led by expert AWS users and industry leaders from around the world. Upcoming AWS Community Days are in Cameroon (July 13), Aotearoa (August 15), and Nigeria (August 24).

Browse all upcoming AWS led in-person and virtual events and developer-focused events.

That’s all for this week. Check back next Monday for another Weekly Roundup!

— seb

This post is part of our Weekly Roundup series. Check back each week for a quick roundup of interesting news and announcements from AWS!

AWS Weekly Roundup: AI21 Labs’ Jamba-Instruct in Amazon Bedrock, Amazon WorkSpaces Pools, and more (July 1, 2024)

Post Syndicated from Esra Kayabali original https://aws.amazon.com/blogs/aws/aws-weekly-roundup-ai21-labs-jamba-instruct-in-amazon-bedrock-amazon-workspaces-pools-and-more-july-1-2024/

AWS Summit New York is 10 days away, and I am very excited about the new announcements and more than 170 sessions. There will be A Night Out with AWS event after the summit for professionals from the media and entertainment, gaming, and sports industries who are existing Amazon Web Services (AWS) customers or have a keen interest in using AWS Cloud services for their business. You’ll have the opportunity to relax, collaborate, and build new connections with AWS leaders and industry peers.

Let’s look at the last week’s new announcements.

Last week’s launches
Here are the launches that got my attention.

AI21 Labs’ Jamba-Instruct now available in Amazon Bedrock – AI21 Labs’ Jamba-Instruct is an instruction-following large language model (LLM) for reliable commercial use, with the ability to understand context and subtext, complete tasks from natural language instructions, and ingest information from long documents or financial filings. With strong reasoning capabilities, Jamba-Instruct can break down complex problems, gather relevant information, and provide structured outputs to enable uses like Q&A on calls, summarizing documents, building chatbots, and more. For more information, visit AI21 Labs in Amazon Bedrock and the Amazon Bedrock User Guide.

Amazon WorkSpaces Pools, a new feature of Amazon WorkSpaces – You can now create a pool of non-persistent virtual desktops using Amazon WorkSpaces and save costs by sharing them across users who receive a fresh desktop each time they sign in. WorkSpaces Pools provides the flexibility to support shared environments like training labs and contact centers, and some user settings like bookmarks and files stored in a central storage repository such as Amazon Simple Storage Service (Amazon S3) or Amazon FSx can be saved for improved personalization. You can use AWS Auto Scaling to automatically scale the pool of virtual desktops based on usage metrics or schedules. For pricing information, refer to the Amazon WorkSpaces Pricing page.

API-driven, OpenLineage-compatible data lineage visualization in Amazon DataZone (preview)Amazon DataZone introduces a new data lineage feature that allows you to visualize how data moves from source to consumption across organizations. The service captures lineage events from OpenLineage-enabled systems or through API to trace data transformations. Data consumers can gain confidence in an asset’s origin, and producers can assess the impact of changes by understanding its consumption through the comprehensive lineage view. Additionally, Amazon DataZone versions lineage with each event to enable visualizing lineage at any point in time or comparing transformations across an asset or job’s history. To learn more, visit Amazon DataZone, read my News Blog post, and get started with data lineage documentation.

Knowledge Bases for Amazon Bedrock now offers observability logs – You can now monitor knowledge ingestion logs through Amazon CloudWatch, S3 buckets, or Amazon Data Firehose streams. This provides enhanced visibility into whether documents were successfully processed or encountered failures during ingestion. Having these comprehensive insights promptly ensures that you can efficiently determine when your documents are ready for use. For more details on these new capabilities, refer to the Knowledge Bases for Amazon Bedrock documentation.

Updates and expansion to the AWS Well-Architected Framework and Lens Catalog – We announced updates to the AWS Well-Architected Framework and Lens Catalog to provide expanded guidance and recommendations on architectural best practices for building secure and resilient cloud workloads. The updates reduce redundancies and enhance consistency in resources and framework structure. The Lens Catalog now includes the new Financial Services Industry Lens and updates to the Mergers and Acquisitions Lens. We also made important updates to the Change Enablement in the Cloud whitepaper. You can use the updated Well-Architected Framework and Lens Catalog to design cloud architectures optimized for your unique requirements by following current best practices.

Cross-account machine learning (ML) model sharing support in Amazon SageMaker Model RegistryAmazon SageMaker Model Registry now integrates with AWS Resource Access Manager (AWS RAM), allowing you to easily share ML models across AWS accounts. This helps data scientists, ML engineers, and governance officers access models in different accounts like development, staging, and production. You can share models in Amazon SageMaker Model Registry by specifying the model in the AWS RAM console and granting access to other accounts. This new feature is now available in all AWS Regions where SageMaker Model Registry is available except GovCloud Regions. To learn more, visit the Amazon SageMaker Developer Guide.

AWS CodeBuild supports Arm-based workloads using AWS Graviton3AWS CodeBuild now supports natively building and testing Arm workloads on AWS Graviton3 processors without additional configuration, providing up to 25% higher performance and 60% lower energy usage than previous Graviton processors. To learn more about CodeBuild’s support for Arm, visit our AWS CodeBuild User Guide.

For a full list of AWS announcements, be sure to keep an eye on the What’s New at AWS page.

We launched existing services and instance types in additional Regions:

Other AWS news
Here are some additional news items that you might find interesting:

Top reasons to build and scale generative AI applications on Amazon Bedrock – Check out Jeff Barr’s video, where he discusses why our customers are choosing Amazon Bedrock to build and scale generative artificial intelligence (generative AI) applications that deliver fast value and business growth. Amazon Bedrock is becoming a preferred platform for building and scaling generative AI due to its features, innovation, availability, and security. Leading organizations across diverse sectors use Amazon Bedrock to speed their generative AI work, like creating intelligent virtual assistants, creative design solutions, document processing systems, and a lot more.

Four ways AWS is engineering infrastructure to power generative AI – We continue to optimize our infrastructure to support generative AI at scale through innovations like delivering low-latency, large-scale networking to enable faster model training, continuously improving data center energy efficiency, prioritizing security throughout our infrastructure design, and developing custom AI chips like AWS Trainium to increase computing performance while lowering costs and energy usage. Read the new blog post about how AWS is engineering infrastructure for generative AI.

AWS re:Inforce 2024 re:Cap – It’s been 2 weeks since AWS re:Inforce 2024, our annual cloud-security learning event. Check out the summary of the event prepared by Wojtek.

Upcoming AWS events
Check your calendars and sign up for upcoming AWS events:

AWS Summits – Join free online and in-person events that bring the cloud computing community together to connect, collaborate, and learn about AWS. To learn more about future AWS Summit events, visit the AWS Summit page. Register in your nearest city: New York (July 10), Bogotá (July 18), and Taipei (July 23–24).

AWS Community Days – Join community-led conferences that feature technical discussions, workshops, and hands-on labs led by expert AWS users and industry leaders from around the world. Upcoming AWS Community Days are in Cameroon (July 13), Aotearoa (August 15), and Nigeria (August 24).

Browse all upcoming AWS led in-person and virtual events and developer-focused events.

That’s all for this week. Check back next Monday for another Weekly Roundup!

— Esra

This post is part of our Weekly Roundup series. Check back each week for a quick roundup of interesting news and announcements from AWS!

AWS Weekly Roundup: Claude 3.5 Sonnet in Amazon Bedrock, CodeCatalyst updates, SageMaker with MLflow, and more (June 24, 2024)

Post Syndicated from Danilo Poccia original https://aws.amazon.com/blogs/aws/aws-weekly-roundup-claude-3-5-sonnet-in-amazon-bedrock-codecatalyst-updates-sagemaker-with-mlflow-and-more-june-24-2024/

This week, I had the opportunity to try the new Anthropic Claude 3.5 Sonnet model in Amazon Bedrock just before it launched, and I was really impressed by its speed and accuracy! It was also the week of AWS Summit Japan; here’s a nice picture of the busy AWS Community stage.

AWS Community stage at the AWS Summit Tokyo

Last week’s launches
With many new capabilities, from recommendations on the size of your Amazon Relational Database Services (Amazon RDS) databases to new built-in transformations in AWS Glue, here’s what got my attention:

Amazon Bedrock – Now supports Anthropic’s Claude 3.5 Sonnet and compressed embeddings from Cohere Embed.

AWS CodeArtifactWith support for Rust packages with Cargo, developers can now store and access their Rust libraries (known as crates).

Amazon CodeCatalyst – Many updates from this unified software development service. You can now assign issues in CodeCatalyst to Amazon Q and direct it to work with source code hosted in GitHub Cloud and Bitbucket Cloud and ask Amazon Q to analyze issues and recommend granular tasks. These tasks can then be individually assigned to users or to Amazon Q itself. You can now also use Amazon Q to help pick the best blueprint for your needs. You can now securely store, publish, and share Maven, Python, and NuGet packages. You can also link an issue to other issues. This allows customers to link issues in CodeCatalyst as blocked by, duplicate of, related to, or blocks another issue. You can now configure a single CodeBuild webhook at organization or enterprise level to receive events from all repositories in your organizations, instead of creating webhooks for each individual repository. Finally, you can now add a default IAM role to an environment.

Amazon EC2 – C7g and R7g instances (powered by AWS Graviton3 processors) are now available in Europe (Milan), Asia Pacific (Hong Kong), and South America (São Paulo) Regions. C7i-flex instances are now available in US East (Ohio) Region.

AWS Compute Optimizer – Now provides rightsizing recommendations for Amazon RDS MySQL, and RDS PostgreSQL. More info in this Cloud Financial Management blog post.

Amazon OpenSearch Service – With JSON Web Token (JWT) authentication and authorization, it’s now easier to integrate identity providers and isolate tenants in a multi-tenant application.

Amazon SageMaker – Now helps you manage machine learning (ML) experiments and the entire ML lifecycle with a fully managed MLflow capability.

AWS Glue – The serverless data integration service now offers 13 new built-in transforms: flag duplicates in column, format Phone Number, format case, fill with mode, flag duplicate rows, remove duplicates, month name, iIs even, cryptographic hash, decrypt, encrypt, int to IP, and IP to int.

Amazon MWAA – Amazon Managed Workflows for Apache Airflow (MWAA) now supports custom domain names for the Airflow web server, allowing to use private web servers with load balancers, custom DNS entries, or proxies to point users to a user-friendly web address.

For a full list of AWS announcements, be sure to keep an eye on the What’s New at AWS page.

Other AWS news
Here are some additional projects, blog posts, and news items that you might find interesting:

AWS re:Inforce 2024 re:Cap – A summary of our annual, immersive, cloud-security learning event by my colleague Wojtek.

Three ways Amazon Q Developer agent for code transformation accelerates Java upgrades – This post offers interesting details on how Amazon Q Developer handles major version upgrades of popular frameworks, replacing deprecated API calls on your behalf, and explainability on code changes.

Five ways Amazon Q simplifies AWS CloudFormation development – For template code generation, querying CloudFormation resource requirements, explaining existing template code, understanding deployment options and issues, and querying CloudFormation documentation.

Improving air quality with generative AI – A nice solution that uses artificial intelligence (AI) to standardize air quality data, addressing the air quality data integration problem of low-cost sensors.

Deploy a Slack gateway for Amazon Bedrock – A solution bringing the power of generative AI directly into your Slack workspace.

An agent-based simulation of Amazon’s inbound supply chain – Simulating the entire US inbound supply chain, including the “first-mile” of distribution and tracking the movement of hundreds of millions of individual products through the network.

AWS CloudFormation Linter (cfn-lint) v1 – This upgrade is particularly significant because it converts from using the CloudFormation spec to using CloudFormation registry resource provider schemas.

A practical approach to using generative AI in the SDLC – Learn how an AI assistant like Amazon Q Developer helps my colleague Jenna figure out what to build and how to build it.

AWS open source news and updates – My colleague Ricardo writes about open source projects, tools, and events from the AWS Community. Check out Ricardo’s page for the latest updates.

Upcoming AWS events
Check your calendars and sign up for upcoming AWS events:

AWS Summits – Join free online and in-person events that bring the cloud computing community together to connect, collaborate, and learn about AWS. This week, you can join the AWS Summit in Washington, DC, June 26–27. Learn here about future AWS Summit events happening in your area.

AWS Community Days – Join community-led conferences that feature technical discussions, workshops, and hands-on labs led by expert AWS users and industry leaders from around the world. This week there are AWS Community Days in Switzerland (June 27), Sri Lanka (June 27), and the Gen AI Edition in Ahmedabad, India (June 29).

Browse all upcoming AWS led in-person and virtual events and developer-focused events.

That’s all for this week. Check back next Monday for another Weekly Roundup!

Danilo

This post is part of our Weekly Roundup series. Check back each week for a quick roundup of interesting news and announcements from AWS!

Announcing the general availability of fully managed MLflow on Amazon SageMaker

Post Syndicated from Veliswa Boya original https://aws.amazon.com/blogs/aws/manage-ml-and-generative-ai-experiments-using-amazon-sagemaker-with-mlflow/

Today, we are thrilled to announce the general availability of a fully managed MLflow capability on Amazon SageMaker. MLflow, a widely-used open-source tool, plays a crucial role in helping machine learning (ML) teams manage the entire ML lifecycle. With this new launch, customers can now effortlessly set up and manage MLflow Tracking Servers with just a few steps, streamlining the process and boosting productivity.

Data Scientists and ML developers can leverage MLflow to track multiple attempts at training models as runs within experiments, compare these runs with visualizations, evaluate models, and register the best models to a Model Registry. Amazon SageMaker eliminates the undifferentiated heavy lifting required to set up and manage MLflow, providing ML administrators with a quick and efficient way to establish secure and scalable MLflow environments on AWS.

Core components of managed MLflow on SageMaker

The fully managed MLflow capability on SageMaker is built around three core components:

  • MLflow Tracking Server – With just a few steps, you can create an MLflow Tracking Server through the SageMaker Studio UI. This stand-alone HTTP server serves multiple REST API endpoints for tracking runs and experiments, enabling you to begin monitoring your ML experiments efficiently. For more granular security customization, you can also use the AWS Command Line Interface (AWS CLI).
  • MLflow backend metadata store – The metadata store is a critical part of the MLflow Tracking Server, where all metadata related to experiments, runs, and artifacts is persisted. This includes experiment names, run IDs, parameter values, metrics, tags, and artifact locations, ensuring comprehensive tracking and management of your ML experiments.
  • MLflow artifact store – This component provides a storage location for all artifacts generated during ML experiments, such as trained models, datasets, logs, and plots. Utilizing an Amazon Simple Storage Service (Amazon S3) bucket, it offers a customer-managed AWS account for storing these artifacts securely and efficiently.

Benefits of Amazon SageMaker with MLflow

Using Amazon SageMaker with MLflow can streamline and enhance your machine learning workflows:

  • Comprehensive Experiment Tracking: Track experiments in MLflow across local integrated development environments (IDEs), managed IDEs in SageMaker Studio, SageMaker training jobs, SageMaker processing jobs, and SageMaker Pipelines.
  • Full MLflow Capabilities: Use all MLflow experimentation capabilities such as MLflow Tracking, MLflow Evaluations, and MLflow Model Registry, are available to easily compare and evaluate the results of training iterations.
  • Unified Model Governance: Models registered in MLflow automatically appear in the SageMaker Model Registry, offering a unified model governance experience that helps you deploy MLflow models to SageMaker inference without building custom containers.
  • Efficient Server Management: Provision, remove, and upgrade MLflow Tracking Servers as desired using SageMaker APIs or the SageMaker Studio UI. SageMaker manages the scaling, patching, and ongoing maintenance of your tracking servers, without customers needing to manage the underlying infrastructure.
  • Enhanced Security: Secure access to MLflow Tracking Servers using AWS Identity and Access Management (IAM). Write IAM policies to grant or deny access to specific MLflow APIs, ensuring robust security for your ML environments.
  • Effective Monitoring and Governance: Monitor the activity on an MLflow Tracking Server using Amazon EventBridge and AWS CloudTrail to support effective governance of their Tracking Servers.

MLflow Tracking Server prerequisites (environment setup)

  1. Create a SageMaker Studio domain
    You can create a SageMaker Studio domain using the new SageMaker Studio experience.
  2. Configure the IAM execution role
    The MLflow Tracking Server needs an IAM execution role to read and write artifacts to Amazon S3 and register models in SageMaker. You can use the Studio domain execution role as the Tracking Server execution role or you can create a separate role for the Tracking Server execution role. If you choose to create a new role for this, refer to the SageMaker Developer Guide for more details on the IAM role. If you choose to update the Studio domain execution role, refer to the SageMaker Developer Guide for details on what IAM policy the role needs.

Create the MLflow Tracking Server
In the walkthrough, I use the default settings for creating an MLflow Tracking Server, which include the Tracking Server version (2.13.2), the Tracking Server size (Small), and the Tracking Server execution role (Studio domain execution role). The Tracking Server size determines how much usage a Tracking Server will support, and we recommend using a Small Tracking Server for teams of up to 25 users. For more details on Tracking Server configurations, read the SageMaker Developer Guide.

To get started, in your SageMaker Studio domain created during your environment set up detailed earlier, select MLflow under Applications and choose Create.

Next, provide a Name and Artifact storage location (S3 URI) for the Tracking Server.

Creating an MLflow Tracking Server can take up to 25 minutes.


Track and compare training runs
To get started with logging metrics, parameters, and artifacts to MLflow, you need a Jupyter Notebook and your Tracking Server ARN that was assigned during the creation step. You can use the MLflow SDK to keep track of training runs and compare them using the MLflow UI.


To register models from MLflow Model Registry to SageMaker Model Registry, you need the sagemaker-mlflow plugin to authenticate all MLflow API requests made by the MLflow SDK using AWS Signature V4.

  1. Install the MLflow SDK and sagemaker-mlflow plugin
    In your notebook, first install the MLflow SDK and sagemaker-mlflow Python plugin.
    pip install mlflow==2.13.2 sagemaker-mlflow==0.1.0
  2. Track a run in an experiment
    To track a run in an experiment, copy the following code into your Jupyter notebook.

    import mlflow
    import mlflow.sklearn
    from sklearn.ensemble import RandomForestClassifier
    from sklearn.datasets import load_iris
    from sklearn.model_selection import train_test_split
    from sklearn.metrics import accuracy_score, precision_score, recall_score, f1_score
    
    # Replace this with the ARN of the Tracking Server you just created
    arn = 'YOUR-TRACKING-SERVER-ARN'
    
    mlflow.set_tracking_uri(arn)
    
    # Load the Iris dataset
    iris = load_iris()
    X, y = iris.data, iris.target
    
    # Split the data into training and testing sets
    X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)
    
    # Train a Random Forest classifier
    rf_model = RandomForestClassifier(n_estimators=100, random_state=42)
    rf_model.fit(X_train, y_train)
    
    # Make predictions on the test set
    y_pred = rf_model.predict(X_test)
    
    # Calculate evaluation metrics
    accuracy = accuracy_score(y_test, y_pred)
    precision = precision_score(y_test, y_pred, average='weighted')
    recall = recall_score(y_test, y_pred, average='weighted')
    f1 = f1_score(y_test, y_pred, average='weighted')
    
    # Start an MLflow run
    with mlflow.start_run():
    # Log the model
    mlflow.sklearn.log_model(rf_model, "random_forest_model")
    
    # Log the evaluation metrics
    mlflow.log_metric("accuracy", accuracy)
    mlflow.log_metric("precision", precision)
    mlflow.log_metric("recall", recall)
    mlflow.log_metric("f1_score", f1)
  3. View your run in the MLflow UI
    Once you run the notebook shown in Step 2, you will see a new run in the MLflow UI.
  4. Compare runs
    You can run this notebook multiple times by changing the random_state to generate different metric values for each training run.

Register candidate models
Once you’ve compared the multiple runs as detailed in Step 4, you can register the model whose metrics best meet your requirements in the MLflow Model Registry. Registering a model indicates potential suitability for production deployment and there will be further testing to validate this suitability. Once a model is registered in MLflow it automatically appears in the SageMaker Model Registry for a unified model governance experience so you can deploy MLflow models to SageMaker inference. This enables data scientists who primarily use MLflow for experimentation to hand off their models to ML engineers who govern and manage production deployments of models using the SageMaker Model Registry.

Here is the model registered in the MLflow Model Registry.


Here is the model registered in the SageMaker Model Registry.

Clean up
Once created, an MLflow Tracking Server will incur costs until you delete or stop it. Billing for Tracking Servers is based on the duration the servers have been running, the size selected, and the amount of data logged to the Tracking Servers. You can stop Tracking Servers when they are not in use to save costs or delete them using API or the SageMaker Studio UI. For more details on pricing, see the Amazon SageMaker pricing.

Now available
SageMaker with MLflow is generally available in all AWS Regions where SageMaker Studio is available, except China and US GovCloud Regions. We invite you to explore this new capability and experience the enhanced efficiency and control it brings to your machine learning projects. To learn more, visit the SageMaker with MLflow product detail page.

For more information, visit the SageMaker Developer Guide and send feedback to AWS re:Post for SageMaker or through your usual AWS support contacts.

Veliswa

AWS Audit Manager extends generative AI best practices framework to Amazon SageMaker

Post Syndicated from Matheus Guimaraes original https://aws.amazon.com/blogs/aws/aws-audit-manager-extends-generative-ai-best-practices-framework-to-amazon-sagemaker/

Sometimes I hear from tech leads that they would like to improve visibility and governance over their generative artificial intelligence applications. How do you monitor and govern the usage and generation of data to address issues regarding security, resilience, privacy, and accuracy or to validate against best practices of responsible AI, among other things? Beyond simply taking these into account during the implementation phase, how do you maintain long-term observability and carry out compliance checks throughout the software’s lifecycle?

Today, we are launching an update to the AWS Audit Manager generative AI best practice framework on AWS Audit Manager. This framework simplifies evidence collection and enables you to continually audit and monitor the compliance posture of your generative AI workloads through 110 standard controls which are pre-configured to implement best practice requirements. Some examples include gaining visibility into potential personally identifiable information (PII) data that may not have been anonymized before being used for training models, validating that multi-factor authentication (MFA) is enforced to gain access to any datasets used, and periodically testing backup versions of customized models to ensure they are reliable before a system outage, among many others. These controls perform their tasks by fetching compliance checks from AWS Config and AWS Security Hub, gathering user activity logs from AWS CloudTrail and capturing configuration data by making application programming interface (API) calls to relevant AWS services. You can also create your own custom controls if you need that level of flexibility.

Previously, the standard controls included with v1 were pre-configured to work with Amazon Bedrock and now, with this new version, Amazon SageMaker is also included as a data source so you may gain tighter control and visibility of your generative AI workloads on both Amazon Bedrock and Amazon SageMaker with less effort.

Enforcing best practices for generative AI workloads
The standard controls included in the “AWS generative AI best practices framework v2” are organized under domains named accuracy, fair, privacy, resilience, responsible, safe, secure and sustainable.

Controls may perform automated or manual checks or a mix of both. For example, there is a control which covers the enforcement of periodic reviews of a model’s accuracy over time. It automatically retrieves a list of relevant models by calling the Amazon Bedrock and SageMaker APIs, but then it requires manual evidence to be uploaded at certain times showing that a review has been conducted for each of them.

You can also customize the framework by including or excluding controls or customizing the pre-defined ones. This can be really helpful when you need to tailor the framework to meet regulations in different countries or update them as they change over time. You can even create your own controls from scratch though I would recommend you search the Audit Manager control library first for something that may be suitable or close enough to be used as a starting point as it could save you some time.

The Control library interface featuring a search box and three tabs: Common, Standard and Custom.

The control library where you can browse and search for common, standard and custom controls.

To get started you first need to create an assessment. Let’s walk through this process.

Step 1 – Assessment Details
Start by navigating to Audit Manager in the AWS Management Console and choose “Assessments”. Choose “Create assessment”; this takes you to the set up process.

Give your assessment a name. You can also add a description if you desire.

Step 1 screen of the assessment creation process. It has a textbox where you must enter a name for your assessment and a description text box where you can optionally enter a description.

Choose a name for this assessment and optionally add a description.

Next, pick an Amazon Simple Storage Service (S3) bucket where Audit Manager stores the assessment reports it generates. Note that you don’t have to select a bucket in the same AWS Region as the assessment, however, it is recommended since your assessment can collect up to 22,000 evidence items if you do so, whereas if you use a cross-Region bucket then that quota is significantly reduced to 3,500 items.

Interface with a textbox where you can type or search for your S3 buckets as well as buttons for browsing and creating a new bucket.

Choose the S3 bucket where AWS Audit Manager can store reports.

Next, we need to pick the framework we want to use. A framework effectively works as a template enabling all of its controls for use in your assessment.

In this case, we want to use the “AWS generative AI best practices framework v2” framework. Use the search box and click on the matched result that pops up to activate the filter.

The Framework searchbox where we typed "gene" which is enough to bring a few results with the top one being "AWS Generative AI Best Practices Framework v2"

Use the search box to find the “AWS generative AI best practices framework V2”

You then should see the framework’s card appear .You can choose the framework’s title, if you wish, to learn more about it and browse through all the included controls.

Select it by choosing the radio button in the card.

A widget containing the framework's title and summary with a radio button that has been checked.

Check the radio button to select the framework.

You now have an opportunity to tag your assessment. Like any other resources, I recommend you tag this with meaningful metadata so review Best Practices for Tagging AWS Resources if you need some guidance.

Step 2 – Specify AWS accounts in scope
This screen is quite straight-forward. Just pick the AWS accounts that you want to be continuously evaluated by the controls in your assessment. It displays the AWS account that you are currently using, by default. Audit Manager does support running assessments against multiple accounts and consolidating the report into one AWS account, however, you must explicitly enable integration with AWS Organizations first, if you would like to use that feature.

Screen displaying all the AWS accounts available for you to select that you want to include in your assessment.

Select the AWS accounts that you want to include in your assessment.

I select my own account as listed and choose “Next”

Step 3 – Specify audit owners
Now we just need to select IAM users who should have full permissions to use and manage this assessment. It’s as simple as it sounds. Pick from a list of identity and access management (IAM) users or roles available or search using the box. It’s recommended that you use the AWSAuditManagerAdministratorAccess policy.

You must select at least one, even if it’s yourself which is what I do here.

Interface for searching and selecting IAM users or roles.

Select IAM users or roles who will have full permissions over this assessment and act as owners.

Step 4 – Review and create
All that is left to do now is review your choices and click on “Create assessment” to complete the process.

Once the assessment is created, Audit Manager starts collecting evidence in the selected AWS accounts and you start generating reports as well as surfacing any non-compliant resources in the summary screen. Keep in mind that it may take up to 24 hours for the first evaluation to show up.

The summary screen for the assessment showing details such as how many controls are available, the status of each control displaying whether they "under review" or their compliance status plus tabs where you can revisit the assessment configuration.

You can visit the assessment details screen at any time to inspect the status for any of the controls.

Conclusion
The “AWS generative AI best practices framework v2” is available today in the AWS Audit Manager framework library in all AWS Regions where Amazon Bedrock and Amazon SageMaker are available.

You can check whether Audit Manager is available in your preferred Region by visiting AWS Services by Region.

If you want to dive deeper, check out a step-by-step guide on how to get started.

Let’s Architect! Learn About Machine Learning on AWS

Post Syndicated from Luca Mezzalira original https://aws.amazon.com/blogs/architecture/lets-architect-learn-about-machine-learning-on-aws/

A data-driven approach empowers businesses to make informed decisions based on accurate predictions and forecasts, leading to improved operational efficiency and resource optimization. Machine learning (ML) systems have the remarkable ability to continuously learn and adapt, improving their performance over time as they are exposed to more data. This self-learning capability ensures that organizations can stay ahead of the curve, responding dynamically to changing market conditions and customer preferences, ultimately driving innovation and enhancing competitiveness.

By leveraging the power of machine learning on AWS, businesses can unlock benefits that enhance efficiency, improve decision-making, and foster growth.

AWS re:Invent 2023 – Zero to machine learning: Jump-start your data-driven journey

In this session, see how organizations with constrained resources (budgets, skill gaps, time) can jump start their data-driven journey with advanced analytics and ML capabilities. Learn AWS Working Backwards best practices to drive forward data-related projects that address tangible business value. Then dive into AWS analytics and AI/ML capabilities that simplify and expedite data pipeline delivery and business value from ML workloads. Hear about low-code no-code (LCNC) AWS services within the context of a complete data pipeline architecture.

Take me to this video

See an architecture to analyze customer churn using AWS services

Figure 1. See an architecture to analyze customer churn using AWS services

Introduction to MLOps engineering on AWS

As artificial intelligence (AI) continues to revolutionize industries, the ability to operationalize and scale ML models has become a critical challenge. This session introduces the concept of MLOps, a discipline that builds upon and extends the widely adopted DevOps practices prevalent in software development. By applying MLOps principles, organizations can streamline the process of building, training, and deploying ML models, ensuring efficient and reliable model lifecycle management. By mastering MLOps, organizations can bridge the gap between AI development and operations, enabling them to unlock the full potential of their ML initiatives.

Take me to this video

MLOps maturity level will help to assess your organization and understand how to reach the next level.

Figure 2. MLOps maturity level will help to assess your organization and understand how to reach the next level.

Behind-the-scenes look at generative AI infrastructure at Amazon

To power generative AI applications while keeping costs under control, AWS designs and builds machine learning accelerators like AWS Trainium and AWS Inferentia. This session introduces purpose-built ML hardware for model training and inference, and shows how Amazon and AWS customers take advantage of those solutions to optimize costs and reduce latency.

You can learn from practical examples showing the impact of those solutions and explanations about how these chips work. ML accelerators are not only beneficial for generative AI workloads; they can also be applied to other use cases, including representation learning, recommender systems, or any scenario with deep neural network models.

Take me to this video

Discover the technology that powers our AI services

Figure 3. Discover the technology that powers our AI services

How our customers are implementing machine learning on AWS

The following resources drill down into the ML infrastructure that’s used to train large models at Pinterest and the experimentation framework built by Booking.com.

The Pinterest video discusses the strategy to create an ML development environment, orchestrate training jobs, ingest data into the training loop, and accelerate the training speed. You can also learn about the advantages derived from containers in the context of ML and how Pinterest decided to set up the entire ML lifecycle, including distributed model training.

The second resource covers how Booking.com accelerated the experimentation process by leveraging Amazon SageMaker for data analysis, model training, and online experimentation. This resulted in shorter development times for their ranking models and increased speed for the data science teams.

Take me to Pinterest video

Take me to Booking.com blog post

Let’s discover how Pinterest is using AWS services for machine learning workloads

Figure 4. Let’s discover how Pinterest is using AWS services for machine learning workloads

SageMaker Immersion Day

Amazon SageMaker Immersion Day helps customers and partners provide end-to-end understanding of building ML use cases. From feature engineering to understanding various built-in algorithms, with a focus on training, tuning, and deploying the ML model in a production-like scenario, this workshop guides you to bring your own model to perform lift-and-shift from on-premises to the Amazon SageMaker platform. It further demonstrates more advanced concepts like model debugging, model monitoring, and AutoML.

Take me to the workshop

Train, tune and deploy your workload using Amazon SageMaker

Figure 5. Train, tune and deploy your workload using Amazon SageMaker

See you next time!

Thanks for reading! With this post, introduced you to the art of possibility on using AWS machine learning services. In the next blog, we will talk about cloud migrations.

To revisit any of our previous posts or explore the entire series, visit the Let’s Architect! page.

Build a decentralized semantic search engine on heterogeneous data stores using autonomous agents

Post Syndicated from Dhaval Shah original https://aws.amazon.com/blogs/big-data/build-a-decentralized-semantic-search-engine-on-heterogeneous-data-stores-using-autonomous-agents/

Large language models (LLMs) such as Anthropic Claude and Amazon Titan have the potential to drive automation across various business processes by processing both structured and unstructured data. For example, financial analysts currently have to manually read and summarize lengthy regulatory filings and earnings transcripts in order to respond to Q&A on investment strategies. LLMs could automate the extraction and summarization of key information from these documents, enabling analysts to query the LLM and receive reliable summaries. This would allow analysts to process the documents to develop investment recommendations faster and more efficiently. Anthropic Claude and other LLMs on Amazon Bedrock can bring new levels of automation and insight across many business functions that involve both human expertise and access to knowledge spread across an organization’s databases and content repositories.

Amazon Bedrock is a fully managed service that offers a choice of high-performing foundation models (FMs) from leading AI companies like AI21 Labs, Anthropic, Cohere, Meta, Stability AI, and Amazon via a single API, along with a broad set of capabilities you need to build generative AI applications with security, privacy, and responsible AI.

In this post, we show how to build a Q&A bot with RAG (Retrieval Augmented Generation). RAG uses data sources like Amazon Redshift and Amazon OpenSearch Service to retrieve documents that augment the LLM prompt. For getting data from Amazon Redshift, we use the Anthropic Claude 2.0 on Amazon Bedrock, summarizing the final response based on pre-defined prompt template libraries from LangChain. To get data from Amazon OpenSearch Service, we chunk, and convert the source data chunks to vectors using Amazon Titan Text Embeddings model.

For client interaction we use Agent Tools based on ReAct. A ReAct prompt consists of few-shot task-solving trajectories, with human-written text reasoning traces and actions, as well as environment observations in response to actions. In this example, we use ReAct for zero-shot training to generate responses to fit in a pre-defined template. The additional information is concatenated as context with the original input prompt and fed to the text generator which produces the final output. This makes RAG adaptive for situations where facts could evolve over time.

Solution overview

Our solution demonstrates how financial analysts can use generative artificial intelligence (AI) to adapt their investment recommendations based on financial reports and earnings transcripts with RAG to use LLMs to generate factual content.

The hybrid architecture uses multiple databases and LLMs, with foundation models from Amazon Bedrock for data source identification, SQL generation, and text generation with results. In the following architecture, Steps 1 and 2 represent data ingestion to be done by data engineering in batch mode. Steps 3, 4, and 5 are the queries and response formation.

The following diagram shows a more detailed view of the Q&A processing chain. The user asks a question, and LangChain queries the Redshift and OpenSearch Service data stores for relevant information to build the prompt. It sends the prompt to the Anthropic Claude on Amazon Bedrock model, and returns the response.

The details of each step are as follows:

  1. Populate the Amazon Redshift Serverless data warehouse with company stock information stored in Amazon Simple Storage Service (Amazon S3). Redshift Serverless is a fully functional data warehouse holding data tables maintained in real time.
  2. Load the unstructured data from your S3 data lake to OpenSearch Service to create an index to store and perform semantic search. The LangChain library loads knowledge base documents, splits the documents into smaller chunks, and uses Amazon Titan to generate embeddings for chunks.
  3. The client submits a question via an interface like a chatbot or website.
  4. You will create multiple steps to transform a user query passed from Amazon SageMaker Notebook to execute API calls to LLMs from Amazon Bedrock. Use LLM-based Agents to generate SQL from Text and then validate if query is relevant to data warehouse tables. If yes, run query to extract information. The LangChain library calls Amazon Titan embeddings to generate a vector for the user’s question. It calls OpenSearch vector search to get similar documents.
  5. LangChain calls Anthropic Claude on Amazon Bedrock model with the additional, retrieved knowledge as context, to generate an answer for the question. It returns generated content to client

In this deployment, you will choose Amazon Redshift Serverless, use Anthropic Claude 2.0  model on Amazon Bedrock and Amazon Titan Text Embeddings model. Overall spend for the deployment will be directly proportional to number of input/output tokens for Amazon Bedrock models, Knowledge base volume, usage hours and so on.

To deploy the solution, you need two datasets: SEC Edgar Annual Financial Filings and Stock pricing data. To join these datasets for analysis, you need to choose Stock Symbol as the join key. The provided AWS CloudFormation template deploys the datasets required for this post, along with the SageMaker notebook.

Prerequisites

To follow along with this post, you should have an AWS account with AWS Identity and Access Management (IAM) user credentials to deploy AWS services.

Deploy the chat application using AWS CloudFormation

To deploy the resources, complete the following steps:

  1. Deploy the following CloudFormation template to create your stack in the us-east-1 AWS Region.The stack will deploy an OpenSearch Service domain, Redshift Serverless endpoint, SageMaker notebook, and other services like VPC and IAM roles that you will use in this post. The template sets a default user name password for the OpenSearch Service domain, and sets up a Redshift Serverless admin. You can choose to modify them or use the default values.
  2. On the AWS CloudFormation console, navigate to the stack you created.
  3. On the Outputs tab, choose the URL for SageMakerNotebookURL to open the notebook.
  4. In Jupyter, choose semantic-search-with-amazon-opensearch, thenblog, then the LLM-Based-Agentfolder.
  5. Open the notebook Generative AI with LLM based autonomous agents augmented with structured and unstructured data.ipynb.
  6. Follow the instructions in the notebook and run the code sequentially.

Run the notebook

There are six major sections in the notebook:

  • Prepare the unstructured data in OpenSearch Service – Download the SEC Edgar Annual Financial Filings dataset and convert the company financial filing document into vectors with Amazon Titan Text Embeddings model and store the vector in an Amazon OpenSearch Service vector database.
  • Prepare the structured data in a Redshift database – Ingest the structured data into your Amazon Redshift Serverless table.
  • Query the unstructured data in OpenSearch Service with a vector search – Create a function to implement semantic search with OpenSearch Service. In OpenSearch Service, match the relevant company financial information to be used as context information to LLM. This is unstructured data augmentation to the LLM.
  • Query the structured data in Amazon Redshift with SQLDatabaseChain – Use the LangChain library LLM text to SQL to query company stock information stored in Amazon Redshift. The search result will be used as context information to the LLM.
  • Create an LLM-based ReAct agent augmented with data in OpenSearch Service and Amazon Redshift – Use the LangChain library to define a ReAct agent to judge whether the user query is stock- or investment-related. If the query is stock related, the agent will query the structured data in Amazon Redshift to get the stock symbol and stock price to augment context to the LLM. The agent also uses semantic search to retrieve relevant financial information from OpenSearch Service to augment context to the LLM.
  • Use the LLM-based agent to generate a final response based on the template used for zero-shot training – The following is a sample user flow for a stock price recommendation for the query, “Is ABC a good investment choice right now.”

Example questions and responses

In this section, we show three example questions and responses to test our chatbot.

Example 1: Historical data is available

In our first test, we explore how the bot responds to a question when historical data is available. We use the question, “Is [Company Name] a good investment choice right now?” Replace [Company Name] with a company you want to query.

This is a stock-related question. The company stock information is in Amazon Redshift and the financial statement information is in OpenSearch Service. The agent will run the following process:

  1. Determine if this is a stock-related question.
  2. Get the company name.
  3. Get the stock symbol from Amazon Redshift.
  4. Get the stock price from Amazon Redshift.
  5. Use semantic search to get related information from 10k financial filing data from OpenSearch Service.
response = zero_shot_agent("\n\nHuman: Is {company name} a good investment choice right now? \n\nAssistant:")

The output may look like the following:

Final Answer: Yes, {company name} appears to be a good investment choice right now based on the stable stock price, continued revenue and earnings growth, and dividend payments. I would recommend investing in {company name} stock at current levels.

You can view the final response from the complete chain in your notebook.

Example 2: Historical data is not available

In this next test, we see how the bot responds to a question when historical data is not available. We ask the question, “Is Amazon a good investment choice right now?”

This is a stock-related question. However, there is no Amazon stock price information in the Redshift table. Therefore, the bot will answer “I cannot provide stock analysis without stock price information.” The agent will run the following process:

  1. Determine if this is a stock-related question.
  2. Get the company name.
  3. Get the stock symbol from Amazon Redshift.
  4. Get the stock price from Amazon Redshift.
response = zero_shot_agent("\n\nHuman: Is Amazon a good investment choice right now? \n\nAssistant:")

The output looks like the following:

Final Answer: I cannot provide stock analysis without stock price information.

Example 3: Unrelated question and historical data is not available

For our third test, we see how the bot responds to an irrelevant question when historical data is not available. This is testing for hallucination. We use the question, “What is SageMaker?”

This is not a stock-related query. The agent will run the following process:

  1. Determine if this is a stock-related question.
response = zero_shot_agent("\n\nHuman: What is SageMaker? \n\nAssistant:")

The output looks like the following:

Final Answer: What is SageMaker? is not a stock related query.

This was a simple RAG-based ReAct chat agent analyzing the corpus from different data stores. In a realistic scenario, you might choose to further enhance the response with restrictions or guardrails for input and output like filtering harsh words for robust input sanitization, output filtering, conversational flow control, and more. You may also want to explore the programmable guardrails to LLM-based conversational systems.

Clean up

To clean up your resources, delete the CloudFormation stack llm-based-agent.

Conclusion

In this post, you explored how LLMs play a part in answering user questions. You looked at a scenario for helping financial analysts. You could employ this methodology for other Q&A scenarios, like supporting insurance use cases, by quickly contextualizing claims data or customer interactions. You used a knowledge base of structured and unstructured data in a RAG approach, merging the data to create intelligent chatbots. You also learned how to use autonomous agents to help provide responses that are contextual and relevant to the customer data and limit irrelevant and inaccurate responses.

Leave your feedback and questions in the comments section.

References


About the Authors

Dhaval Shah is a Principal Solutions Architect with Amazon Web Services based out of New York, where he guides global financial services customers to build highly secure, scalable, reliable, and cost-efficient applications on the cloud. He brings over 20 years of technology experience on Software Development and Architecture, Data Engineering, and IT Management.

Soujanya Konka is a Senior Solutions Architect and Analytics specialist at AWS, focused on helping customers build their ideas on cloud. Expertise in design and implementation of Data platforms. Before joining AWS, Soujanya has had stints with companies such as HSBC & Cognizant

Jon Handler is a Senior Principal Solutions Architect at Amazon Web Services based in Palo Alto, CA. Jon works closely with OpenSearch and Amazon OpenSearch Service, providing help and guidance to a broad range of customers who have search and log analytics workloads that they want to move to the AWS Cloud. Prior to joining AWS, Jon’s career as a software developer included 4 years of coding a large-scale, ecommerce search engine. Jon holds a Bachelor of the Arts from the University of Pennsylvania, and a Master of Science and a PhD in Computer Science and Artificial Intelligence from Northwestern University.

Jianwei Li is a Principal Analytics Specialist TAM at Amazon Web Services. Jianwei provides consultant service for customers to help customer design and build modern data platform. Jianwei has been working in big data domain as software developer, consultant and tech leader.

Hrishikesh Karambelkar is a Principal Architect for Data and AIML with AWS Professional Services for Asia Pacific and Japan. He is proactively engaged with customers in APJ region to enable enterprises in their Digital Transformation journey on AWS Cloud in the areas of Generative AI, machine learning and Data, Analytics, Previously, Hrishikesh has authored books on enterprise search, biig data and co-authored research publications in the areas of Enterprise Search and AI-ML.

Let’s Architect! Discovering Generative AI on AWS

Post Syndicated from Luca Mezzalira original https://aws.amazon.com/blogs/architecture/lets-architect-generative-ai/

Generative artificial intelligence (generative AI) is a type of AI used to generate content, including conversations, images, videos, and music. Generative AI can be used directly to build customer-facing features (a chatbot or an image generator), or it can serve as an underlying component in a more complex system. For example, it can generate embeddings (or compressed representations) or any other artifact necessary to improve downstream machine learning (ML) models or back-end services.

With the advent of generative AI, it’s fundamental to understand what it is, how it works under the hood, and which options are available for putting it into production. In some cases, it can also be helpful to move closer to the underlying model in order to fine tune or drive domain-specific improvements. With this edition of Let’s Architect!, we’ll cover these topics and share an initial set of methodologies to put generative AI into production. We’ll start with a broad introduction to the domain and then share a mix of videos, blogs, and hands-on workshops.

Navigating the future of AI 

Many teams are turning to open source tools running on Kubernetes to help accelerate their ML and generative AI journeys. In this video session, experts discuss why Kubernetes is ideal for ML, then tackle challenges like dependency management and security. You will learn how tools like Ray, JupyterHub, Argo Workflows, and Karpenter can accelerate your path to building and deploying generative AI applications on Amazon Elastic Kubernetes Service (Amazon EKS). A real-world example showcases how Adobe leveraged Amazon EKS to achieve faster time-to-market and reduced costs. You will be also introduced to Data on EKS, a new AWS project offering best practices for deploying various data workloads on Amazon EKS.

Take me to this video!

Containers are a powerful tool for creating reproducible research and production environments for ML.

Figure 1. Containers are a powerful tool for creating reproducible research and production environments for ML.

Generative AI: Architectures and applications in depth

This video session aims to provide an in-depth exploration of the emerging concepts in generative AI. By delving into practical applications and detailing best practices for implementation, the session offers a concrete understanding that empowers businesses to harness the full potential of these technologies. You can gain valuable insights into navigating the complexities of generative AI, equipping you with the knowledge and strategies necessary to stay ahead of the curve and capitalize on the transformative power of these new methods. If you want to dive even deeper, check this generative AI best practices post.

Take me to this video!

Models are growing exponentially: improved capabilities come with higher costs for productionizing them.

Figure 2. Models are growing exponentially: improved capabilities come with higher costs for productionizing them.

SaaS meets AI/ML & generative AI: Multi-tenant patterns & strategies

Working with AI/ML workloads and generative AI in a production environment requires appropriate system design and careful considerations for tenant separation in the context of SaaS. You’ll need to think about how the different tenants are mapped to models, how inferencing is scaled, how solutions are integrated with other upstream/downstream services, and how large language models (LLMs) can be fine-tuned to meet tenant-specific needs.

This video drills down into the concept of multi-tenancy for AI/ML workloads, including the common design, performance, isolation, and experience challenges that you can find during your journey. You will also become familiar with concepts like RAG (used to enrich the LLMs with contextual information) and fine tuning through practical examples.

Take me to this video!

Supporting different tenants might need fetching different context information with RAGs or offering different options for fine-tuning.

Figure 3. Supporting different tenants might need fetching different context information with RAGs or offering different options for fine-tuning.

Achieve DevOps maturity with BMC AMI zAdviser Enterprise and Amazon Bedrock

DevOps Research and Assessment (DORA) metrics, which measure critical DevOps performance indicators like lead time, are essential to engineering practices, as shown in the Accelerate book‘s research. By leveraging generative AI technology, the zAdviser Enterprise platform can now offer in-depth insights and actionable recommendations to help organizations optimize their DevOps practices and drive continuous improvement. This blog demonstrates how generative AI can go beyond language or image generation, applying to a wide spectrum of domains.

Take me to this blog post!

Generative AI is used to provide summarization, analysis, and recommendations for improvement based on the DORA metrics.

Figure 4. Generative AI is used to provide summarization, analysis, and recommendations for improvement based on the DORA metrics.

Hands-on Generative AI: AWS workshops

Getting hands on is often the best way to understand how everything works in practice and create the mental model to connect theoretical foundations with some real-world applications.

Generative AI on Amazon SageMaker shows how you can build, train, and deploy generative AI models. You can learn about options to fine-tune, use out-of-the-box existing models, or even customize the existing open source models based on your needs.

Building with Amazon Bedrock and LangChain demonstrates how an existing fully-managed service provided by AWS can be used when you work with foundational models, covering a wide variety of use cases. Also, if you want a quick guide for prompt engineering, you can check out the PartyRock lab in the workshop.

An image replacement example that you can find in the workshop.

Figure 5. An image replacement example that you can find in the workshop.

See you next time!

Thanks for reading! We hope you got some insight into the applications of generative AI and discovered new strategies for using it. In the next blog, we will dive deeper into machine learning.

To revisit any of our previous posts or explore the entire series, visit the Let’s Architect! page.

Genomics workflows, Part 6: cost prediction

Post Syndicated from Rostislav Markov original https://aws.amazon.com/blogs/architecture/part-6-genomics-workflows-cost-prediction/

Genomics workflows run on large pools of compute resources and take petabyte-scale datasets as inputs. Workflow runs can cost as much as hundreds of thousands of US dollars. Given this large scale, scientists want to estimate the projected cost of their genomics workflow runs before deciding to launch them.

In Part 6 of this series, we build on the benchmarking concepts presented in Part 5. You will learn how to train machine learning (ML) models on historical data to predict the cost of future runs. While we focus on genomics, the design pattern is broadly applicable to any compute-intensive workflow use case.

Use case

In large life-sciences organizations, multiple research teams often use the same genomics applications. The actual cost of consuming shared resources is only periodically shown or charged back to research teams.

In this blog post’s scenario, scientists want to predict the cost of future workflow runs based on the following input parameters:

  • Workflow name
  • Input data set size
  • Expected output dataset size

In our experience, scientists might not know how to reliably estimate compute cost based on the preceding parameters. This is because workflow run cost doesn’t linearly correlate to the input dataset size. For example, some workflow steps might be highly parallelizable while others aren’t. Otherwise, scientists could simply use the AWS Pricing Calculator or interact programmatically with the AWS Price List API. To solve this problem, we use ML to model the pattern of correlation and predict workflow cost.

Business benefits of predicting the cost of genomics workflow runs

Price prediction brings the following benefits:

  • Prioritizing workflow runs based on financial impact
  • Promoting cost awareness and frugality with application users
  • Supporting enterprise resource planning and prevention of budget overruns by integrating estimation data into management reporting and approval workflows

Prerequisites

To build this solution, you must have workflows running on AWS for which you collect actual cost data after each workflow run. This setup is demonstrated in Part 3 and Part 5 of this blog series. This data provides training data for the solution’s cost prediction models.

Solution overview

This solution includes a friendly user interface, ML models that predict usage parameters, and a metadata storage mechanism to estimate the cost of a workflow run. We use the automated workflow manager presented in Part 3 and the benchmarking solution from Part 5. The data on historical workflow launches and their cost serves as training and testing data for our ML models. We store this in Amazon DynamoDB. We use AWS Amplify to host a serverless user interface and a library/framework such as React to build it.

Scientists input the required parameters about their genomics workflow run to the Amplify frontend React application. The latter makes a request to an Amazon API Gateway REST API. This invokes an AWS Lambda function, which calls an Amazon SageMaker hosted endpoint to return predicted costs (Figure 1).

This visual summarizes the cost prediction and model training processes. Users request cost predictions for future workflow runs on a web frontend hosted in AWS Amplify. The frontend passes the requests to an Amazon API Gateway endpoint with Lambda integration. The Lambda function retrieves the suitable model endpoint from the DynamoDB table and invokes the model via the Amazon SageMaker API. Model training runs on a schedule and is orchestrated by an AWS Step Functions state machine. The state machine queries training datasets from the DynamoDB table. If the new model performs better, it is registered in the SageMaker model registry. Otherwise, the state machine sends a notification to an Amazon Simple Notification Service topic stating that there are no updates.

Figure 1. Automated cost prediction of genomics workflow runs

Each workflow captured in the DynamoDB table has a corresponding ML model trained for the specific use case. Separating out models for specific workflows simplifies the model development process. This solution periodically trains ML models to improve their overall accuracy and performance. A rule in Amazon EventBridge Scheduler invokes model training on a regular basis. An AWS Step Functions state machine automates the model training process.

Implementation considerations

When a scientist submits a request (which includes the name of the workflow they’re running), API Gateway uses Lambda integration. The Lambda function retrieves a record from the DynamoDB table that keeps track of the SageMaker hosted endpoints. The partition key of the table is the workflow name (indicated as workflow_name), as shown in the following example:

This visual displays an exemplary DynamoDB record. The record includes the Amazon SageMaker hosted endpoint that AWS Lambda would retrieve for a regenie workflow.

Using the input parameters, the Lambda function invokes the SageMaker hosted endpoint and returns the inference values back to the frontend.

Automating model training

Our Step Functions state machine for model training uses native SageMaker SDK integration. It runs as follows:

  1. The state machine invokes a SageMaker training job to train a new ML model. The training job uses the historical workflow run data sourced from the DynamoDB table. After the training job completes, it outputs the ML model to an Amazon Simple Storage Service (Amazon S3) bucket.
  2. The state machine registers the new model in the SageMaker model registry.
  3. A Lambda function compares the performance of the new model with the prior version on the training dataset.
  4. If the new model performs better than the prior model, the state machine creates a new SageMaker hosted endpoint configuration and puts the endpoint name in the DynamoDB table.
  5. Otherwise, the state machine sends a notification to an Amazon Simple Notification Service (Amazon SNS) topic stating that there are no updates.

Conclusion

In this blog post, we demonstrated how genomics research teams can build a price estimator to predict genomics workflow run cost. This solution trains ML models for each workflow based on data from historical workflow runs. A state machine helps automate the entire model training process. You can use price estimation to promote cost awareness in your organization and reduce the risk of budget overruns.

Our solution is particularly suitable if you want to predict the price of individual workflow runs. If you want forecast overall consumption of your shared application infrastructure, consider deploying a forecasting workflow with Amazon Forecast. The Build workflows for Amazon Forecast with AWS Step Functions blog post provides details on the specific use case for using Amazon Forecast workflows.

Related information

Import custom models in Amazon Bedrock (preview)

Post Syndicated from Danilo Poccia original https://aws.amazon.com/blogs/aws/import-custom-models-in-amazon-bedrock-preview/

With Amazon Bedrock, you have access to a choice of high-performing foundation models (FMs) from leading artificial intelligence (AI) companies that make it easier to build and scale generative AI applications. Some of these models provide publicly available weights that can be fine-tuned and customized for specific use cases. However, deploying customized FMs in a secure and scalable way is not an easy task.

Starting today, Amazon Bedrock adds in preview the capability to import custom weights for supported model architectures (such as Meta Llama 2, Llama 3, and Mistral) and serve the custom model using On-Demand mode. You can import models with weights in Hugging Face safetensors format from Amazon SageMaker and Amazon Simple Storage Service (Amazon S3).

In this way, you can use Amazon Bedrock with existing customized models such as Code Llama, a code-specialized version of Llama 2 that was created by further training Llama 2 on code-specific datasets, or use your data to fine-tune models for your own unique business case and import the resulting model in Amazon Bedrock.

Let’s see how this works in practice.

Bringing a custom model to Amazon Bedrock
In the Amazon Bedrock console, I choose Imported models from the Foundation models section of the navigation pane. Now, I can create a custom model by importing model weights from an Amazon Simple Storage Service (Amazon S3) bucket or from an Amazon SageMaker model.

I choose to import model weights from an S3 bucket. In another browser tab, I download the MistralLite model from the Hugging Face website using this pull request (PR) that provides weights in safetensors format. The pull request is currently Ready to merge, so it might be part of the main branch when you read this. MistralLite is a fine-tuned Mistral-7B-v0.1 language model with enhanced capabilities of processing long context up to 32K tokens.

When the download is complete, I upload the files to an S3 bucket in the same AWS Region where I will import the model. Here are the MistralLite model files in the Amazon S3 console:

Console screenshot.

Back at the Amazon Bedrock console, I enter a name for the model and keep the proposed import job name.

Console screenshot.

I select Model weights in the Model import settings and browse S3 to choose the location where I uploaded the model weights.

Console screenshot.

To authorize Amazon Bedrock to access the files on the S3 bucket, I select the option to create and use a new AWS Identity and Access Management (IAM) service role. I use the View permissions details link to check what will be in the role. Then, I submit the job.

About ten minutes later, the import job is completed.

Console screenshot.

Now, I see the imported model in the console. The list also shows the model Amazon Resource Name (ARN) and the creation date.

Console screenshot.

I choose the model to get more information, such as the S3 location of the model files.

Console screenshot.

In the model detail page, I choose Open in playground to test the model in the console. In the text playground, I type a question using the prompt template of the model:

<|prompter|>What are the main challenges to support a long context for LLM?</s><|assistant|>

The MistralLite imported model is quick to reply and describe some of those challenges.

Console screenshot.

In the playground, I can tune responses for my use case using configurations such as temperature and maximum length or add stop sequences specific to the imported model.

To see the syntax of the API request, I choose the three small vertical dots at the top right of the playground.

Console screenshot.

I choose View API syntax and run the command using the AWS Command Line Interface (AWS CLI):

aws bedrock-runtime invoke-model \
--model-id arn:aws:bedrock:us-east-1:123412341234:imported-model/a82bkefgp20f \
--body "{\"prompt\":\"<|prompter|>What are the main challenges to support a long context for LLM?</s><|assistant|>\",\"max_tokens\":512,\"top_k\":200,\"top_p\":0.9,\"stop\":[],\"temperature\":0.5}" \
--cli-binary-format raw-in-base64-out \
--region us-east-1 \
invoke-model-output.txt

The output is similar to what I got in the playground. As you can see, for imported models, the model ID is the ARN of the imported model. I can use the model ID to invoke the imported model with the AWS CLI and AWS SDKs.

Things to know
You can bring your own weights for supported model architectures to Amazon Bedrock in the US East (N. Virginia) AWS Region. The model import capability is currently available in preview.

When using custom weights, Amazon Bedrock serves the model with On-Demand mode, and you only pay for what you use with no time-based term commitments. For detailed information, see Amazon Bedrock pricing.

The ability to import models is managed using AWS Identity and Access Management (IAM), and you can allow this capability only to the roles in your organization that need to have it.

With this launch, it’s now easier to build and scale generative AI applications using custom models with security and privacy built in.

To learn more:

Danilo

Hybrid Search with Amazon OpenSearch Service

Post Syndicated from Hajer Bouafif original https://aws.amazon.com/blogs/big-data/hybrid-search-with-amazon-opensearch-service/

Amazon OpenSearch Service has been a long-standing supporter of both lexical and semantic search, facilitated by its utilization of the k-nearest neighbors (k-NN) plugin. By using OpenSearch Service as a vector database, you can seamlessly combine the advantages of both lexical and vector search. The introduction of the neural search feature in OpenSearch Service 2.9 further simplifies integration with artificial intelligence (AI) and machine learning (ML) models, facilitating the implementation of semantic search.

Lexical search using TF/IDF or BM25 has been the workhorse of search systems for decades. These traditional lexical search algorithms match user queries with exact words or phrases in your documents. Lexical search is more suitable for exact matches, provides low latency, and offers good interpretability of results and generalizes well across domains. However, this approach does not consider the context or meaning of the words, which can lead to irrelevant results.

In the past few years, semantic search methods based on vector embeddings have become increasingly popular to enhance search. Semantic search enables a more context-aware search, understanding the natural language questions of user queries. However, semantic search powered by vector embeddings requires fine-tuning of the ML model for the associated domain (such as healthcare or retail) and more memory resources compared to basic lexical search.

Both lexical search and semantic search have their own strengths and weaknesses. Combining lexical and vector search improves the quality of search results by using their best features in a hybrid model. OpenSearch Service 2.11 now supports out-of-the-box hybrid query capabilities that make it straightforward for you to implement a hybrid search model combining lexical search and semantic search.

This post explains the internals of hybrid search and how to build a hybrid search solution using OpenSearch Service. We experiment with sample queries to explore and compare lexical, semantic, and hybrid search. All the code used in this post is publicly available in the GitHub repository.

Hybrid search with OpenSearch Service

In general, hybrid search to combine lexical and semantic search involves the following steps:

  1. Run a semantic and lexical search using a compound search query clause.
  2. Each query type provides scores on different scales. For example, a Lucene lexical search query will return a score between 1 and infinity. On the other hand, a semantic query using the Faiss engine returns scores between 0 and 1. Therefore, you need to normalize the scores coming from each type of query to put them on the same scale before combining the scores. In a distributed search engine, this normalization needs to happen at the global level rather than shard or node level.
  3. After the scores are all on the same scale, they’re combined for every document.
  4. Reorder the documents based on the new combined score and render the documents as a response to the query.

Prior to OpenSearch Service 2.11, search practitioners would need to use compound query types to combine lexical and semantic search queries. However, this approach does not address the challenge of global normalization of scores as mentioned in Step 2.

OpenSearch Service 2.11 added the support of hybrid query by introducing the score normalization processor in search pipelines. Search pipelines take away the heavy lifting of building normalization of score results and combination outside your OpenSearch Service domain. Search pipelines run inside the OpenSearch Service domain and support three types of processors: search request processor, search response processor, and search phase results processor.

In a hybrid search, the search phase results processor runs between the query phase and fetch phase at the coordinator node (global) level. The following diagram illustrates this workflow.

Search Pipeline

The hybrid search workflow in OpenSearch Service contains the following phases:

  • Query phase – The first phase of a search request is the query phase, where each shard in your index runs the search query locally and returns the document ID matching the search request with relevance scores for each document.
  • Score normalization and combination – The search phase results processor runs between the query phase and fetch phase. It uses the normalization processer to normalize scoring results from BM25 and KNN subqueries. The search processor supports min_max and L2-Euclidean distance normalization methods. The processor combines all scores, compiles the final list of ranked document IDs, and passes them to the fetch phase. The processor supports arithmetic_mean, geometric_mean, and harmonic_mean to combine scores.
  • Fetch phase – The final phase is the fetch phase, where the coordinator node retrieves the documents that matches the final ranked list and returns the search query result.

Solution overview

In this post, you build a web application where you can search through a sample image dataset in the retail space, using a hybrid search system powered by OpenSearch Service. Let’s assume that the web application is a retail shop and you as a consumer need to run queries to search for women’s shoes.

For a hybrid search, you combine a lexical and semantic search query against the text captions of images in the dataset. The end-to-end search application high-level architecture is shown in the following figure.

Solution Architecture

The workflow contains the following steps:

  1. You use an Amazon SageMaker notebook to index image captions and image URLs from the Amazon Berkeley Objects Dataset stored in Amazon Simple Storage Service (Amazon S3) into OpenSearch Service using the OpenSearch ingest pipeline. This dataset is a collection of 147,702 product listings with multilingual metadata and 398,212 unique catalog images. You only use the item images and item names in US English. For demo purposes, you use approximately 1,600 products.
  2. OpenSearch Service calls the embedding model hosted in SageMaker to generate vector embeddings for the image caption. You use the GPT-J-6B variant embedding model, which generates 4,096 dimensional vectors.
  3. Now you can enter your search query in the web application hosted on an Amazon Elastic Compute Cloud (Amazon EC2) instance (c5.large). The application client triggers the hybrid query in OpenSearch Service.
  4. OpenSearch Service calls the SageMaker embedding model to generate vector embeddings for the search query.
  5. OpenSearch Service runs the hybrid query, combines the semantic search and lexical search scores for the documents, and sends back the search results to the EC2 application client.

Let’s look at Steps 1, 2, 4, and 5 in more detail.

Step 1: Ingest the data into OpenSearch

In Step 1, you create an ingest pipeline in OpenSearch Service using the text_embedding processor to generate vector embeddings for the image captions.

After you define a k-NN index with the ingest pipeline, you run a bulk index operation to store your data into the k-NN index. In this solution, you only index the image URLs, text captions, and caption embeddings where the field type for the caption embeddings is k-NN vector.

Step 2 and Step 4: OpenSearch Service calls the SageMaker embedding model

In these steps, OpenSearch Service uses the SageMaker ML connector to generate the embeddings for the image captions and query. The blue box in the preceding architecture diagram refers to the integration of OpenSearch Service with SageMaker using the ML connector feature of OpenSearch. This feature is available in OpenSearch Service starting from version 2.9. It enables you to create integrations with other ML services, such as SageMaker.

Step 5: OpenSearch Service runs the hybrid search query

OpenSearch Service uses the search phase results processor to perform a hybrid search. For hybrid scoring, OpenSearch Service uses the normalization, combination, and weights configuration settings that are set in the normalization processor of the search pipeline.

Prerequisites

Before you deploy the solution, make sure you have the following prerequisites:

  • An AWS account
  • Familiarity with the Python programming language
  • Familiarity with AWS Identity and Access Management (IAM), Amazon EC2, OpenSearch Service, and SageMaker

Deploy the hybrid search application to your AWS account

To deploy your resources, use the provided AWS CloudFormation template. Supported AWS Regions are us-east-1, us-west-2, and eu-west-1. Complete the following steps to launch the stack:

  1. On the AWS CloudFormation console, create a new stack.
  2. For Template source, select Amazon S3 URL.
  3. For Amazon S3 URL, enter the path for the template for deploying hybrid search.
  4. Choose Next.Deploy CloudFormation
  5. Name the stack hybridsearch.
  6. Keep the remaining settings as default and choose Submit.
  7. The template stack should take 15 minutes to deploy. When it’s done, the stack status will show as CREATE_COMPLETE.Check completion of CloudFormation deployment
  8. When the stack is complete, navigate to the stack Outputs tab.
  9. Choose the SagemakerNotebookURL link to open the SageMaker notebook in a separate tab.Open SageMaker Notebook URL
  10. In the SageMaker notebook, navigate to the AI-search-with-amazon-opensearch-service/opensearch-hybridsearch directory and open HybridSearch.ipynb.Open HybridSearch notebook
  11. If the notebook prompts to set the kernel, Choose the conda_pytorch_p310 kernel from the drop-down menu, then choose Set Kernel.Set the Kernel
  12. The notebook should look like the following screenshot.HybridSearch Implementation steps

Now that the notebook is ready to use, follow the step-by-step instructions in the notebook. With these steps, you create an OpenSearch SageMaker ML connector and a k-NN index, ingest the dataset into an OpenSearch Service domain, and host the web search application on Amazon EC2.

Run a hybrid search using the web application

The web application is now deployed in your account and you can access the application using the URL generated at the end of the SageMaker notebook.

Open the Application using the URL

Copy the generated URL and enter it in your browser to launch the application.

Application UI components

Complete the following steps to run a hybrid search:

  1. Use the search bar to enter your search query.
  2. Use the drop-down menu to select the search type. The available options are Keyword Search, Vector Search, and Hybrid Search.
  3. Choose GO to render results for your query or regenerate results based on your new settings.
  4. Use the left pane to tune your hybrid search configuration:
    • Under Weight for Semantic Search, adjust the slider to choose the weight for semantic subquery. Be aware that the total weight for both lexical and semantic queries should be 1.0. The closer the weight is to 1.0, the more weight is given to the semantic subquery, and this setting minus 1.0 goes as weightage to the lexical query.
    • For Select the normalization type, choose the normalization technique (min_max or L2).
    • For Select the Score Combination type, choose the score combination techniques: arithmetic_mean, geometric_mean, or harmonic_mean.

Experiment with Hybrid Search

In this post, you run four experiments to understand the differences between the outputs of each search type.

As a customer of this retail shop, you are looking for women’s shoes, and you don’t know yet what style of shoes you would like to purchase. You expect that the retail shop should be able to help you decide according to the following parameters:

  • Not to deviate from the primary attributes of what you search for.
  • Provide versatile options and styles to help you understand your preference of style and then choose one.

As your first step, enter the search query “women shoes” and choose 5 as the number of documents to output.

Next, run the following experiments and review the observation for each search type

Experiment 1: Lexical search

Experiment 1: Lexical searchFor a lexical search, choose Keyword Search as your search type, then choose GO.

The keyword search runs a lexical query, looking for same words between the query and image captions. In the first four results, two are women’s boat-style shoes identified by common words like “women” and “shoes.” The other two are men’s shoes, linked by the common term “shoes.” The last result is of style “sandals,” and it’s identified based on the common term “shoes.”

In this experiment, the keyword search provided three relevant results out of five—it doesn’t completely capture the user’s intention to have shoes only for women.

Experiment 2: Semantic search

Experiment 2: Semantic search

For a semantic search, choose Semantic search as the search type, then choose GO.

The semantic search provided results that all belong to one particular style of shoes, “boots.” Even though the term “boots” was not part of the search query, the semantic search understands that terms “shoes” and “boots” are similar because they are found to be nearest neighbors in the vector space.

In this experiment, when the user didn’t mention any specific shoe styles like boots, the results limited the user’s choices to a single style. This hindered the user’s ability to explore a variety of styles and make a more informed decision on their preferred style of shoes to purchase.

Let’s see how hybrid search can help in this use case.

Experiment 3: Hybrid search

Experiment 3: Hybrid search

Choose Hybrid Search as the search type, then choose GO.

In this example, the hybrid search uses both lexical and semantic search queries. The results show two “boat shoes” and three “boots,” reflecting a blend of both lexical and semantic search outcomes.

In the top two results, “boat shoes” directly matched the user’s query and were obtained through lexical search. In the lower-ranked items, “boots” was identified through semantic search.

In this experiment, the hybrid search gave equal weighs to both lexical and semantic search, which allowed users to quickly find what they were looking for (shoes) while also presenting additional styles (boots) for them to consider.

Experiment 4: Fine-tune the hybrid search configuration

Experiment 4: Fine-tune the hybrid search configuration

In this experiment, set the weight of the vector subquery to 0.8, which means the keyword search query has a weightage of 0.2. Keep the normalization and score combination settings set to default. Then choose GO to generate new results for the preceding query.

Providing more weight to the semantic search subquery resulted in higher scores to the semantic search query results. You can see a similar outcome as the semantic search results from the second experiment, with five images of boots for women.

You can further fine-tune the hybrid search results by adjusting the combination and normalization techniques.

In a benchmark conducted by the OpenSearch team using publicly available datasets such as BEIR and Amazon ESCI, they concluded that the min_max normalization technique combined with the arithmetic_mean score combination technique provides the best results in a hybrid search.

You need to thoroughly test the different fine-tuning options to choose what is the most relevant to your business requirements.

Overall observations

From all the previous experiments, we can conclude that the hybrid search in the third experiment had a combination of results that looks relevant to the user in terms of giving exact matches and also additional styles to choose from. The hybrid search matches the expectation of the retail shop customer.

Clean up

To avoid incurring continued AWS usage charges, make sure you delete all the resources you created as part of this post.

To clean up your resources, make sure you delete the S3 bucket you created within the application before you delete the CloudFormation stack.

OpenSearch Service integrations

In this post, you deployed a CloudFormation template to host the ML model in a SageMaker endpoint and spun up a new OpenSearch Service domain, then you used a SageMaker notebook to run steps to create the SageMaker-ML connector and deploy the ML model in OpenSearch Service.

You can achieve the same setup for an existing OpenSearch Service domain by using the ready-made CloudFormation templates from the OpenSearch Service console integrations. These templates automate the steps of SageMaker model deployment and SageMaker ML connector creation in OpenSearch Service.

Conclusion

In this post, we provided a complete solution to run a hybrid search with OpenSearch Service using a web application. The experiments in the post provided an example of how you can combine the power of lexical and semantic search in a hybrid search to improve the search experience for your end-users for a retail use case.

We also explained the new features available in version 2.9 and 2.11 in OpenSearch Service that make it effortless for you to build semantic search use cases such as remote ML connectors, ingest pipelines, and search pipelines. In addition, we showed you how the new score normalization processor in the search pipeline makes it straightforward to establish the global normalization of scores within your OpenSearch Service domain before combining multiple search scores.

Learn more about ML-powered search with OpenSearch and set up hybrid search in your own environment using the guidelines in this post. The solution code is also available on the GitHub repo.


About the Authors

Hajer Bouafif, Analytics Specialist Solutions ArchitectHajer Bouafif is an Analytics Specialist Solutions Architect at Amazon Web Services. She focuses on Amazon OpenSearch Service and helps customers design and build well-architected analytics workloads in diverse industries. Hajer enjoys spending time outdoors and discovering new cultures.

Praveen Mohan Prasad, Analytics Specialist Technical Account ManagerPraveen Mohan Prasad is an Analytics Specialist Technical Account Manager at Amazon Web Services and helps customers with pro-active operational reviews on analytics workloads. Praveen actively researches on applying machine learning to improve search relevance.

Top Architecture Blog Posts of 2023

Post Syndicated from Andrea Courtright original https://aws.amazon.com/blogs/architecture/top-architecture-blog-posts-of-2023/

2023 was a rollercoaster year in tech, and we at the AWS Architecture Blog feel so fortunate to have shared in the excitement. As we move into 2024 and all of the new technologies we could see, we want to take a moment to highlight the brightest stars from 2023.

As always, thanks to our readers and to the many talented and hardworking Solutions Architects and other contributors to our blog.

I give you our 2023 cream of the crop!

#10: Build a serverless retail solution for endless aisle on AWS

In this post, Sandeep and Shashank help retailers and their customers alike in this guided approach to finding inventory that doesn’t live on shelves.

Building endless aisle architecture for order processing

Figure 1. Building endless aisle architecture for order processing

Check it out!

#9: Optimizing data with automated intelligent document processing solutions

Who else dreads wading through large amounts of data in multiple formats? Just me? I didn’t think so. Using Amazon AI/ML and content-reading services, Deependra, Anirudha, Bhajandeep, and Senaka have created a solution that is scalable and cost-effective to help you extract the data you need and store it in a format that works for you.

AI-based intelligent document processing engine

Figure 2: AI-based intelligent document processing engine

Check it out!

#8: Disaster Recovery Solutions with AWS managed services, Part 3: Multi-Site Active/Passive

Disaster recovery posts are always popular, and this post by Brent and Dhruv is no exception. Their creative approach in part 3 of this series is most helpful for customers who have business-critical workloads with higher availability requirements.

Warm standby with managed services

Figure 3. Warm standby with managed services

Check it out!

#7: Simulating Kubernetes-workload AZ failures with AWS Fault Injection Simulator

Continuing with the theme of “when bad things happen,” we have Siva, Elamaran, and Re’s post about preparing for workload failures. If resiliency is a concern (and it really should be), the secret is test, test, TEST.

Architecture flow for Microservices to simulate a realistic failure scenario

Figure 4. Architecture flow for Microservices to simulate a realistic failure scenario

Check it out!

#6: Let’s Architect! Designing event-driven architectures

Luca, Laura, Vittorio, and Zamira weren’t content with their four top-10 spots last year – they’re back with some things you definitely need to know about event-driven architectures.

Let's Architect

Figure 5. Let’s Architect artwork

Check it out!

#5: Use a reusable ETL framework in your AWS lake house architecture

As your lake house increases in size and complexity, you could find yourself facing maintenance challenges, and Ashutosh and Prantik have a solution: frameworks! The reusable ETL template with AWS Glue templates might just save you a headache or three.

Reusable ETL framework architecture

Figure 6. Reusable ETL framework architecture

Check it out!

#4: Invoking asynchronous external APIs with AWS Step Functions

It’s possible that AWS’ menagerie of services doesn’t have everything you need to run your organization. (Possible, but not likely; we have a lot of amazing services.) If you are using third-party APIs, then Jorge, Hossam, and Shirisha’s architecture can help you maintain a secure, reliable, and cost-effective relationship among all involved.

Invoking Asynchronous External APIs architecture

Figure 7. Invoking Asynchronous External APIs architecture

Check it out!

#3: Announcing updates to the AWS Well-Architected Framework

The Well-Architected Framework continues to help AWS customers evaluate their architectures against its six pillars. They are constantly striving for improvement, and Haleh’s diligence in keeping us up to date has not gone unnoticed. Thank you, Haleh!

Well-Architected logo

Figure 8. Well-Architected logo

Check it out!

#2: Let’s Architect! Designing architectures for multi-tenancy

The practically award-winning Let’s Architect! series strikes again! This time, Luca, Laura, Vittorio, and Zamira were joined by Federica to discuss multi-tenancy and why that concept is so crucial for SaaS providers.

Let's Architect

Figure 9. Let’s Architect

Check it out!

And finally…

#1: Understand resiliency patterns and trade-offs to architect efficiently in the cloud

Haresh, Lewis, and Bonnie revamped this 2022 post into a masterpiece that completely stole our readers’ hearts and is among the top posts we’ve ever made!

Resilience patterns and trade-offs

Figure 10. Resilience patterns and trade-offs

Check it out!

Bonus! Three older special mentions

These three posts were published before 2023, but we think they deserve another round of applause because you, our readers, keep coming back to them.

Thanks again to everyone for their contributions during a wild year. We hope you’re looking forward to the rest of 2024 as much as we are!

Power neural search with AI/ML connectors in Amazon OpenSearch Service

Post Syndicated from Aruna Govindaraju original https://aws.amazon.com/blogs/big-data/power-neural-search-with-ai-ml-connectors-in-amazon-opensearch-service/

With the launch of the neural search feature for Amazon OpenSearch Service in OpenSearch 2.9, it’s now effortless to integrate with AI/ML models to power semantic search and other use cases. OpenSearch Service has supported both lexical and vector search since the introduction of its k-nearest neighbor (k-NN) feature in 2020; however, configuring semantic search required building a framework to integrate machine learning (ML) models to ingest and search. The neural search feature facilitates text-to-vector transformation during ingestion and search. When you use a neural query during search, the query is translated into a vector embedding and k-NN is used to return the nearest vector embeddings from the corpus.

To use neural search, you must set up an ML model. We recommend configuring AI/ML connectors to AWS AI and ML services (such as Amazon SageMaker or Amazon Bedrock) or third-party alternatives. Starting with version 2.9 on OpenSearch Service, AI/ML connectors integrate with neural search to simplify and operationalize the translation of your data corpus and queries to vector embeddings, thereby removing much of the complexity of vector hydration and search.

In this post, we demonstrate how to configure AI/ML connectors to external models through the OpenSearch Service console.

Solution Overview

Specifically, this post walks you through connecting to a model in SageMaker. Then we guide you through using the connector to configure semantic search on OpenSearch Service as an example of a use case that is supported through connection to an ML model. Amazon Bedrock and SageMaker integrations are currently supported on the OpenSearch Service console UI, and the list of UI-supported first- and third-party integrations will continue to grow.

For any models not supported through the UI, you can instead set them up using the available APIs and the ML blueprints. For more information, refer to Introduction to OpenSearch Models. You can find blueprints for each connector in the ML Commons GitHub repository.

Prerequisites

Before connecting the model via the OpenSearch Service console, create an OpenSearch Service domain. Map an AWS Identity and Access Management (IAM) role by the name LambdaInvokeOpenSearchMLCommonsRole as the backend role on the ml_full_access role using the Security plugin on OpenSearch Dashboards, as shown in the following video. The OpenSearch Service integrations workflow is pre-filled to use the LambdaInvokeOpenSearchMLCommonsRole IAM role by default to create the connector between the OpenSearch Service domain and the model deployed on SageMaker. If you use a custom IAM role on the OpenSearch Service console integrations, make sure the custom role is mapped as the backend role with ml_full_access permissions prior to deploying the template.

Deploy the model using AWS CloudFormation

The following video demonstrates the steps to use the OpenSearch Service console to deploy a model within minutes on Amazon SageMaker and generate the model ID via the AI connectors. The first step is to choose Integrations in the navigation pane on the OpenSearch Service AWS console, which routes to a list of available integrations. The integration is set up through a UI, which will prompt you for the necessary inputs.

To set up the integration, you only need to provide the OpenSearch Service domain endpoint and provide a model name to uniquely identify the model connection. By default, the template deploys the Hugging Face sentence-transformers model, djl://ai.djl.huggingface.pytorch/sentence-transformers/all-MiniLM-L6-v2.

When you choose Create Stack, you are routed to the AWS CloudFormation console. The CloudFormation template deploys the architecture detailed in the following diagram.

The CloudFormation stack creates an AWS Lambda application that deploys a model from Amazon Simple Storage Service (Amazon S3), creates the connector, and generates the model ID in the output. You can then use this model ID to create a semantic index.

If the default all-MiniLM-L6-v2 model doesn’t serve your purpose, you can deploy any text embedding model of your choice on the chosen model host (SageMaker or Amazon Bedrock) by providing your model artifacts as an accessible S3 object. Alternatively, you can select one of the following pre-trained language models and deploy it to SageMaker. For instructions to set up your endpoint and models, refer to Available Amazon SageMaker Images.

SageMaker is a fully managed service that brings together a broad set of tools to enable high-performance, low-cost ML for any use case, delivering key benefits such as model monitoring, serverless hosting, and workflow automation for continuous training and deployment. SageMaker allows you to host and manage the lifecycle of text embedding models, and use them to power semantic search queries in OpenSearch Service. When connected, SageMaker hosts your models and OpenSearch Service is used to query based on inference results from SageMaker.

View the deployed model through OpenSearch Dashboards

To verify the CloudFormation template successfully deployed the model on the OpenSearch Service domain and get the model ID, you can use the ML Commons REST GET API through OpenSearch Dashboards Dev Tools.

The GET _plugins REST API now provides additional APIs to also view the model status. The following command allows you to see the status of a remote model:

GET _plugins/_ml/models/<modelid>

As shown in the following screenshot, a DEPLOYED status in the response indicates the model is successfully deployed on the OpenSearch Service cluster.

Alternatively, you can view the model deployed on your OpenSearch Service domain using the Machine Learning page of OpenSearch Dashboards.

This page lists the model information and the statuses of all the models deployed.

Create the neural pipeline using the model ID

When the status of the model shows as either DEPLOYED in Dev Tools or green and Responding in OpenSearch Dashboards, you can use the model ID to build your neural ingest pipeline. The following ingest pipeline is run in your domain’s OpenSearch Dashboards Dev Tools. Make sure you replace the model ID with the unique ID generated for the model deployed on your domain.

PUT _ingest/pipeline/neural-pipeline
{
  "description": "Semantic Search for retail product catalog ",
  "processors" : [
    {
      "text_embedding": {
        "model_id": "sfG4zosBIsICJFsINo3X",
        "field_map": {
           "description": "desc_v",
           "name": "name_v"
        }
      }
    }
  ]
}

Create the semantic search index using the neural pipeline as the default pipeline

You can now define your index mapping with the default pipeline configured to use the new neural pipeline you created in the previous step. Ensure the vector fields are declared as knn_vector and the dimensions are appropriate to the model that is deployed on SageMaker. If you have retained the default configuration to deploy the all-MiniLM-L6-v2 model on SageMaker, keep the following settings as is and run the command in Dev Tools.

PUT semantic_demostore
{
  "settings": {
    "index.knn": true,  
    "default_pipeline": "neural-pipeline",
    "number_of_shards": 1,
    "number_of_replicas": 1
  },
  "mappings": {
    "properties": {
      "desc_v": {
        "type": "knn_vector",
        "dimension": 384,
        "method": {
          "name": "hnsw",
          "engine": "nmslib",
          "space_type": "cosinesimil"
        }
      },
      "name_v": {
        "type": "knn_vector",
        "dimension": 384,
        "method": {
          "name": "hnsw",
          "engine": "nmslib",
          "space_type": "cosinesimil"
        }
      },
      "description": {
        "type": "text" 
      },
      "name": {
        "type": "text" 
      } 
    }
  }
}

Ingest sample documents to generate vectors

For this demo, you can ingest the sample retail demostore product catalog to the new semantic_demostore index. Replace the user name, password, and domain endpoint with your domain information and ingest raw data into OpenSearch Service:

curl -XPOST -u 'username:password' 'https://domain-end-point/_bulk' --data-binary @semantic_demostore.json -H 'Content-Type: application/json'

Validate the new semantic_demostore index

Now that you have ingested your dataset to the OpenSearch Service domain, validate if the required vectors are generated using a simple search to fetch all fields. Validate if the fields defined as knn_vectors have the required vectors.

Compare lexical search and semantic search powered by neural search using the Compare Search Results tool

The Compare Search Results tool on OpenSearch Dashboards is available for production workloads. You can navigate to the Compare search results page and compare query results between lexical search and neural search configured to use the model ID generated earlier.

Clean up

You can delete the resources you created following the instructions in this post by deleting the CloudFormation stack. This will delete the Lambda resources and the S3 bucket that contain the model that was deployed to SageMaker. Complete the following steps:

  1. On the AWS CloudFormation console, navigate to your stack details page.
  2. Choose Delete.

  1. Choose Delete to confirm.

You can monitor the stack deletion progress on the AWS CloudFormation console.

Note that, deleting the CloudFormation stack doesn’t delete the model deployed on the SageMaker domain and the AI/ML connector created. This is because these models and the connector can be associated with multiple indexes within the domain. To specifically delete a model and its associated connector, use the model APIs as shown in the following screenshots.

First, undeploy the model from the OpenSearch Service domain memory:

POST /_plugins/_ml/models/<model_id>/_undeploy

Then you can delete the model from the model index:

DELETE /_plugins/_ml/models/<model_id>

Lastly, delete the connector from the connector index:

DELETE /_plugins/_ml/connectors/<connector_id>

Conclusion

In this post, you learned how to deploy a model in SageMaker, create the AI/ML connector using the OpenSearch Service console, and build the neural search index. The ability to configure AI/ML connectors in OpenSearch Service simplifies the vector hydration process by making the integrations to external models native. You can create a neural search index in minutes using the neural ingestion pipeline and the neural search that use the model ID to generate the vector embedding on the fly during ingest and search.

To learn more about these AI/ML connectors, refer to Amazon OpenSearch Service AI connectors for AWS services, AWS CloudFormation template integrations for semantic search, and Creating connectors for third-party ML platforms.


About the Authors

Aruna Govindaraju is an Amazon OpenSearch Specialist Solutions Architect and has worked with many commercial and open source search engines. She is passionate about search, relevancy, and user experience. Her expertise with correlating end-user signals with search engine behavior has helped many customers improve their search experience.

Dagney Braun is a Principal Product Manager at AWS focused on OpenSearch.

AWS Weekly Roundup—Amazon Route53, Amazon EventBridge, Amazon SageMaker, and more – January 15, 2024

Post Syndicated from Marcia Villalba original https://aws.amazon.com/blogs/aws/aws-weekly-roundup-amazon-route53-amazon-eventbridge-amazon-sagemaker-and-more-january-15-2024/

We are in January, the start of a new year, and I imagine many of you have made a new year resolution to learn something new. If you want to learn something new and get a free Amazon Web Services (AWS) Learning Badge, check out the new Events and Workflows Learning Path. This learning path will teach you everything you need to know about AWS Step Functions, Amazon EventBridge, event-driven architectures, and serverless, and when you finish the learning path, you can take an assessment. If you pass the assessment, you get an AWS Learning Badge, credited by Credly, that you can share in your résumé and social media profiles.

Events and workflows learning path badge

Last Week’s Launches
Here are some launches that got my attention during the previous week.

Amazon Route 53 – Now you can enable Route 53 Resolver DNS Firewall to filter DNS traffic based on the query type contained in the question section of the DNS query format. In addition, Route 53 now supports geoproximity routing as an additional routing policy for DNS records. Expand and reduce the geographic area from which traffic is routed to a resource by changing the record’s bias value. This is really helpful for industries that need to deliver highly responsive digital experiences.

Amazon CloudWatch LogsCloudWatch Logs now support creating account-level subscription filters. This capability allows you to forward all the logs groups from an account to other services like Amazon OpenSearch Service or Amazon Kinesis Data Firehose.

Amazon Elastic Container Service (Amazon ECS) Amazon ECS now integrates with Amazon Elastic Block Store (Amazon EBS), allowing you to provision and attach EBS volumes to Amazon ECS tasks running on both AWS Fargate and Amazon Elastic Cloud Compute (Amazon EC2). Read the blog post Channy wrote where he shows this feature in action.

Amazon EventBridgeEventBridge now supports AWS AppSync as a target of EventBridge buses. This enables you to stream real-time updates from your backend applications to your front-end clients. For example, you can get notifications in your mobile application from an order you did when the order status changes on the backend.

Amazon SageMakerSageMaker now supports M7i, C7i, and R7i instances for machine learning (ML) inference. These instances are powered by custom 4th generation Intel Xeon scalable processors and deliver up to 15 percent better price performance than their previous generations.

For a full list of AWS announcements, be sure to keep an eye on the What’s New at AWS page.

Other AWS News
Some other updates and news that you may have missed:

If you are a serverless enthusiast, this week, the AWS Compute Blog published the Serverless ICYMI (in case you missed it) quarterly recap for the last quarter of 2023. This post compiles the announcements made during the months of October, November, and December, with all the relevant content that was produced by AWS Developer Advocates during that time. In addition to that blog post, you can learn about ServerlessVideo, a new demo application that we launched at AWS re:Invent 2023.

ServerlessVideo

This week there were also a couple of really interesting blog posts that explain how to solve very common challenges that customers face. The first one is the blog post in the AWS Security Blog that explains how to customize access tokens in Amazon Cognito user pools. And the second one is from the AWS Database Blog, which explains how to effectively sort data with Amazon DynamoDB.

The Official AWS Podcast – Listen each week for updates on the latest AWS news and deep dives into exciting use cases. There are also official AWS podcasts in several languages. Check out the ones in FrenchGermanItalian, and Spanish.

AWS open source newsletter – This is a newsletter curated by my colleague Ricardo to bring you the latest open source projects, posts, events, and more.

For our customers in Turkey, on January 1, 2024, AWS Turkey Pazarlama Teknoloji ve Danışmanlık Hizmetleri Limited Şirketi (AWS Turkey) replaced AWS EMEA SARL (AWS Europe) as the contracting party and service provider to customers in Türkiye. This enables AWS customers in Türkiye to transact in their local currency (Turkish Lira) and with a local bank. For more information on AWS Turkey, visit the FAQ page.

Upcoming AWS Events
The beginning of the year is the season of AWS re:Invent recaps, which are happening all around the globe during the next two months. You can check the recaps page to find the one closest to you.

You can browse all upcoming AWS led in-person and virtual events, as well as developer-focused events such as AWS DevDay.

That’s all for this week. Check back next Monday for another Week in Review!

— Marcia

This post is part of our Weekly Roundup series. Check back each week for a quick roundup of interesting news and announcements from AWS!

Package and deploy models faster with new tools and guided workflows in Amazon SageMaker

Post Syndicated from Antje Barth original https://aws.amazon.com/blogs/aws/package-and-deploy-models-faster-with-new-tools-and-guided-workflows-in-amazon-sagemaker/

I’m happy to share that Amazon SageMaker now comes with an improved model deployment experience to help you deploy traditional machine learning (ML) models and foundation models (FMs) faster.

As a data scientist or ML practitioner, you can now use the new ModelBuilder class in the SageMaker Python SDK to package models, perform local inference to validate runtime errors, and deploy to SageMaker from your local IDE or SageMaker Studio notebooks.

In SageMaker Studio, new interactive model deployment workflows give you step-by-step guidance on which instance type to choose to find the most optimal endpoint configuration. SageMaker Studio also provides additional interfaces to add models, test inference, and enable auto scaling policies on the deployed endpoints.

New tools in SageMaker Python SDK
The SageMaker Python SDK has been updated with new tools, including ModelBuilder and SchemaBuilder classes that unify the experience of converting models into SageMaker deployable models across ML frameworks and model servers. Model builder automates the model deployment by selecting a compatible SageMaker container and capturing dependencies from your development environment. Schema builder helps to manage serialization and deserialization tasks of model inputs and outputs. You can use the tools to deploy the model in your local development environment to experiment with it, fix any runtime errors, and when ready, transition from local testing to deploy the model on SageMaker with a single line of code.

Amazon SageMaker ModelBuilder

Let me show you how this works. In the following example, I choose the Falcon-7B model from the Hugging Face model hub. I first deploy the model locally, run a sample inference, perform local benchmarking to find the optimal configuration, and finally deploy the model with the suggested configuration to SageMaker.

First, import the updated SageMaker Python SDK and define a sample model input and output that matches the prompt format for the selected model.

import sagemaker
from sagemaker.serve.builder.model_builder import ModelBuilder
from sagemaker.serve.builder.schema_builder import SchemaBuilder
from sagemaker.serve import Mode

prompt = "Falcons are"
response = "Falcons are small to medium-sized birds of prey related to hawks and eagles."

sample_input = {
    "inputs": prompt,
    "parameters": {"max_new_tokens": 32}
}

sample_output = [{"generated_text": response}]

Then, create a ModelBuilder instance with the Hugging Face model ID, a SchemaBuilder instance with the sample model input and output, define a local model path, and set the mode to LOCAL_CONTAINER to deploy the model locally. The schema builder generates the required functions for serializing and deserializing the model inputs and outputs.

model_builder = ModelBuilder(
    model="tiiuae/falcon-7b",
    schema_builder=SchemaBuilder(sample_input, sample_output),
    model_path="/path/to/falcon-7b",
    mode=Mode.LOCAL_CONTAINER,
	env_vars={"HF_TRUST_REMOTE_CODE": "True"}
)

Next, call build() to convert the PyTorch model into a SageMaker deployable model. The build function generates the required artifacts for the model server, including the inferency.py and serving.properties files.

local_mode_model = model_builder.build()

For FMs, such as Falcon, you can optionally run tune() in local container mode that performs local benchmarking to find the optimal model serving configuration. This includes the tensor parallel degree that specifies the number of GPUs to use if your environment has multiple GPUs available. Once ready, call deploy() to deploy the model in your local development environment.

tuned_model = local_mode_model.tune()
tuned_model.deploy()

Let’s test the model.

updated_sample_input = model_builder.schema_builder.sample_input
print(updated_sample_input)

{'inputs': 'Falcons are',
 'parameters': {'max_new_tokens': 32}}
 
local_tuned_predictor.predict(updated_sample_input)[0]["generated_text"]

In my demo, the model returns the following response:

a type of bird that are known for their sharp talons and powerful beaks. They are also known for their ability to fly at high speeds […]

When you’re ready to deploy the model on SageMaker, call deploy() again, set the mode to SAGEMAKLER_ENDPOINT, and provide an AWS Identity and Access Management (IAM) role with appropriate permissions.

sm_predictor = tuned_model.deploy(
    mode=Mode.SAGEMAKER_ENDPOINT, 
	role="arn:aws:iam::012345678910:role/role_name"
)

This starts deploying your model on a SageMaker endpoint. Once the endpoint is ready, you can run predictions.

new_input = {'inputs': 'Eagles are','parameters': {'max_new_tokens': 32}}
sm_predictor.predict(new_input)[0]["generated_text"])

New SageMaker Studio model deployment experience
You can start the new interactive model deployment workflows by selecting one or more models to deploy from the models landing page or SageMaker JumpStart model details page or by creating a new endpoint from the endpoints details page.

Amazon SageMaker - New Model Deployment Experience

The new workflows help you quickly deploy the selected model(s) with minimal inputs. If you used SageMaker Inference Recommender to benchmark your model, the dropdown will show instance recommendations from that benchmarking.

Model deployment experience in SageMaker Studio

Without benchmarking your model, the dropdown will display prospective instances that SageMaker predicts could be a good fit based on its own heuristics. For some of the most popular SageMaker JumpStart models, you’ll see an AWS pretested optimal instance type. For other models, you’ll see generally recommended instance types. For example, if I select the Falcon 40B Instruct model in SageMaker JumpStart, I can see the recommended instance types.

Model deployment experience in SageMaker Studio

Model deployment experience in SageMaker Studio

However, if I want to optimize the deployment for cost or performance to meet my specific use cases, I could open the Alternate configurations panel to view more options based on data from before benchmarking.

Model deployment experience in SageMaker Studio

Once deployed, you can test inference or manage auto scaling policies.

Model deployment experience in SageMaker Studio

Things to know
Here are a couple of important things to know:

Supported ML models and frameworks – At launch, the new SageMaker Python SDK tools support model deployment for XGBoost and PyTorch models. You can deploy FMs by specifying the Hugging Face model ID or SageMaker JumpStart model ID using the SageMaker LMI container or Hugging Face TGI-based container. You can also bring your own container (BYOC) or deploy models using the Triton model server in ONNX format.

Now available
The new set of tools is available today in all AWS Regions where Amazon SageMaker real-time inference is available. There is no cost to use the new set of tools; you pay only for any underlying SageMaker resources that get created.

Learn more

Get started
Explore the new SageMaker model deployment experience in the AWS Management Console today!

— Antje

Amazon SageMaker adds new inference capabilities to help reduce foundation model deployment costs and latency

Post Syndicated from Antje Barth original https://aws.amazon.com/blogs/aws/amazon-sagemaker-adds-new-inference-capabilities-to-help-reduce-foundation-model-deployment-costs-and-latency/

Today, we are announcing new Amazon SageMaker inference capabilities that can help you optimize deployment costs and reduce latency. With the new inference capabilities, you can deploy one or more foundation models (FMs) on the same SageMaker endpoint and control how many accelerators and how much memory is reserved for each FM. This helps to improve resource utilization, reduce model deployment costs on average by 50 percent, and lets you scale endpoints together with your use cases.

For each FM, you can define separate scaling policies to adapt to model usage patterns while further optimizing infrastructure costs. In addition, SageMaker actively monitors the instances that are processing inference requests and intelligently routes requests based on which instances are available, helping to achieve on average 20 percent lower inference latency.

Key components
The new inference capabilities build upon SageMaker real-time inference endpoints. As before, you create the SageMaker endpoint with an endpoint configuration that defines the instance type and initial instance count for the endpoint. The model is configured in a new construct, an inference component. Here, you specify the number of accelerators and amount of memory you want to allocate to each copy of a model, together with the model artifacts, container image, and number of model copies to deploy.

Amazon SageMaker - MME

Let me show you how this works.

New inference capabilities in action
You can start using the new inference capabilities from SageMaker Studio, the SageMaker Python SDK, and the AWS SDKs and AWS Command Line Interface (AWS CLI). They are also supported by AWS CloudFormation.

For this demo, I use the AWS SDK for Python (Boto3) to deploy a copy of the Dolly v2 7B model and a copy of the FLAN-T5 XXL model from the Hugging Face model hub on a SageMaker real-time endpoint using the new inference capabilities.

Create a SageMaker endpoint configuration

import boto3
import sagemaker

role = sagemaker.get_execution_role()
sm_client = boto3.client(service_name="sagemaker")

sm_client.create_endpoint_config(
    EndpointConfigName=endpoint_config_name,
    ExecutionRoleArn=role,
    ProductionVariants=[{
        "VariantName": "AllTraffic",
        "InstanceType": "ml.g5.12xlarge",
        "InitialInstanceCount": 1,
		"RoutingConfig": {
            "RoutingStrategy": "LEAST_OUTSTANDING_REQUESTS"
        }
    }]
)

Create the SageMaker endpoint

sm_client.create_endpoint(
    EndpointName=endpoint_name,
    EndpointConfigName=endpoint_config_name,
)

Before you can create the inference component, you need to create a SageMaker-compatible model and specify a container image to use. For both models, I use the Hugging Face LLM Inference Container for Amazon SageMaker. These deep learning containers (DLCs) include the necessary components, libraries, and drivers to host large models on SageMaker.

Prepare the Dolly v2 model

from sagemaker.huggingface import get_huggingface_llm_image_uri

# Retrieve the container image URI
hf_inference_dlc = get_huggingface_llm_image_uri(
  "huggingface",
  version="0.9.3"
)

# Configure model container
dolly7b = {
    'Image': hf_inference_dlc,
    'Environment': {
        'HF_MODEL_ID':'databricks/dolly-v2-7b',
        'HF_TASK':'text-generation',
    }
}

# Create SageMaker Model
sagemaker_client.create_model(
    ModelName        = "dolly-v2-7b",
    ExecutionRoleArn = role,
    Containers       = [dolly7b]
)

Prepare the FLAN-T5 XXL model

# Configure model container
flant5xxlmodel = {
    'Image': hf_inference_dlc,
    'Environment': {
        'HF_MODEL_ID':'google/flan-t5-xxl',
        'HF_TASK':'text-generation',
    }
}

# Create SageMaker Model
sagemaker_client.create_model(
    ModelName        = "flan-t5-xxl",
    ExecutionRoleArn = role,
    Containers       = [flant5xxlmodel]
)

Now, you’re ready to create the inference component.

Create an inference component for each model
Specify an inference component for each model you want to deploy on the endpoint. Inference components let you specify the SageMaker-compatible model and the compute and memory resources you want to allocate. For CPU workloads, define the number of cores to allocate. For accelerator workloads, define the number of accelerators. RuntimeConfig defines the number of model copies you want to deploy.

# Inference compoonent for Dolly v2 7B
sm_client.create_inference_component(
    InferenceComponentName="IC-dolly-v2-7b",
    EndpointName=endpoint_name,
    VariantName=variant_name,
    Specification={
        "ModelName": "dolly-v2-7b",
        "ComputeResourceRequirements": {
		    "NumberOfAcceleratorDevicesRequired": 2, 
			"NumberOfCpuCoresRequired": 2, 
			"MinMemoryRequiredInMb": 1024
	    }
    },
    RuntimeConfig={"CopyCount": 1},
)

# Inference component for FLAN-T5 XXL
sm_client.create_inference_component(
    InferenceComponentName="IC-flan-t5-xxl",
    EndpointName=endpoint_name,
    VariantName=variant_name,
    Specification={
        "ModelName": "flan-t5-xxl",
        "ComputeResourceRequirements": {
		    "NumberOfAcceleratorDevicesRequired": 2, 
			"NumberOfCpuCoresRequired": 1, 
			"MinMemoryRequiredInMb": 1024
	    }
    },
    RuntimeConfig={"CopyCount": 1},
)

Once the inference components have successfully deployed, you can invoke the models.

Run inference
To invoke a model on the endpoint, specify the corresponding inference component.

import json
sm_runtime_client = boto3.client(service_name="sagemaker-runtime")
payload = {"inputs": "Why is California a great place to live?"}

response_dolly = sm_runtime_client.invoke_endpoint(
    EndpointName=endpoint_name,
    InferenceComponentName = "IC-dolly-v2-7b",
    ContentType="application/json",
    Accept="application/json",
    Body=json.dumps(payload),
)

response_flant5 = sm_runtime_client.invoke_endpoint(
    EndpointName=endpoint_name,
    InferenceComponentName = "IC-flan-t5-xxl",
    ContentType="application/json",
    Accept="application/json",
    Body=json.dumps(payload),
)

result_dolly = json.loads(response_dolly['Body'].read().decode())
result_flant5 = json.loads(response_flant5['Body'].read().decode())

Next, you can define separate scaling policies for each model by registering the scaling target and applying the scaling policy to the inference component. Check out the SageMaker Developer Guide for detailed instructions.

The new inference capabilities provide per-model CloudWatch metrics and CloudWatch Logs and can be used with any SageMaker-compatible container image across SageMaker CPU- and GPU-based compute instances. Given support by the container image, you can also use response streaming.

Now available
The new Amazon SageMaker inference capabilities are available today in AWS Regions US East (Ohio, N. Virginia), US West (Oregon), Asia Pacific (Jakarta, Mumbai, Seoul, Singapore, Sydney, Tokyo), Canada (Central), Europe (Frankfurt, Ireland, London, Stockholm), Middle East (UAE), and South America (São Paulo). For pricing details, visit Amazon SageMaker Pricing. To learn more, visit Amazon SageMaker.

Get started
Log in to the AWS Management Console and deploy your FMs using the new SageMaker inference capabilities today!

— Antje

Amazon SageMaker Clarify makes it easier to evaluate and select foundation models (preview)

Post Syndicated from Antje Barth original https://aws.amazon.com/blogs/aws/amazon-sagemaker-clarify-makes-it-easier-to-evaluate-and-select-foundation-models-preview/

I’m happy to share that Amazon SageMaker Clarify now supports foundation model (FM) evaluation (preview). As a data scientist or machine learning (ML) engineer, you can now use SageMaker Clarify to evaluate, compare, and select FMs in minutes based on metrics such as accuracy, robustness, creativity, factual knowledge, bias, and toxicity. This new capability adds to SageMaker Clarify’s existing ability to detect bias in ML data and models and explain model predictions.

The new capability provides both automatic and human-in-the-loop evaluations for large language models (LLMs) anywhere, including LLMs available in SageMaker JumpStart, as well as models trained and hosted outside of AWS. This removes the heavy lifting of finding the right model evaluation tools and integrating them into your development environment. It also simplifies the complexity of trying to adopt academic benchmarks to your generative artificial intelligence (AI) use case.

Evaluate FMs with SageMaker Clarify
With SageMaker Clarify, you now have a single place to evaluate and compare any LLM based on predefined criteria during model selection and throughout the model customization workflow. In addition to automatic evaluation, you can also use the human-in-the-loop capabilities to set up human reviews for more subjective criteria, such as helpfulness, creative intent, and style, by using your own workforce or managed workforce from SageMaker Ground Truth.

To get started with model evaluations, you can use curated prompt datasets that are purpose-built for common LLM tasks, including open-ended text generation, text summarization, question answering (Q&A), and classification. You can also extend the model evaluation with your own custom prompt datasets and metrics for your specific use case. Human-in-the-loop evaluations can be used for any task and evaluation metric. After each evaluation job, you receive an evaluation report that summarizes the results in natural language and includes visualizations and examples. You can download all metrics and reports and also integrate model evaluations into SageMaker MLOps workflows.

In SageMaker Studio, you can find Model evaluation under Jobs in the left menu. You can also select Evaluate directly from the model details page of any LLM in SageMaker JumpStart.

Evaluate foundation models with Amazon SageMaker Clarify

Select Evaluate a model to set up the evaluation job. The UI wizard will guide you through the selection of automatic or human evaluation, model(s), relevant tasks, metrics, prompt datasets, and review teams.

Evaluate foundation models with Amazon SageMaker Clarify

Once the model evaluation job is complete, you can view the results in the evaluation report.

Evaluate foundation models with Amazon SageMaker Clarify

In addition to the UI, you can also start with example Jupyter notebooks that walk you through step-by-step instructions on how to programmatically run model evaluation in SageMaker.

Evaluate models anywhere with the FMEval open source library
To run model evaluation anywhere, including models trained and hosted outside of AWS, use the FMEval open source library. The following example demonstrates how to use the library to evaluate a custom model by extending the ModelRunner class.

For this demo, I choose GPT-2 from the Hugging Face model hub and define a custom HFModelConfig and HuggingFaceCausalLLMModelRunner class that works with causal decoder-only models from the Hugging Face model hub such as GPT-2. The example is also available in the FMEval GitHub repo.

!pip install fmeval

# ModelRunners invoke FMs
from amazon_fmeval.model_runners.model_runner import ModelRunner

# Additional imports for custom model
import warnings
from dataclasses import dataclass
from typing import Tuple, Optional
import torch
from transformers import AutoModelForCausalLM, AutoTokenizer

@dataclass
class HFModelConfig:
    model_name: str
    max_new_tokens: int
    normalize_probabilities: bool = False
    seed: int = 0
    remove_prompt_from_generated_text: bool = True

class HuggingFaceCausalLLMModelRunner(ModelRunner):
    def __init__(self, model_config: HFModelConfig):
        self.config = model_config
        self.model = AutoModelForCausalLM.from_pretrained(self.config.model_name)
        self.tokenizer = AutoTokenizer.from_pretrained(self.config.model_name)

    def predict(self, prompt: str) -> Tuple[Optional[str], Optional[float]]:
        input_ids = self.tokenizer(prompt, return_tensors="pt").to(self.model.device)
        generations = self.model.generate(
            **input_ids,
            max_new_tokens=self.config.max_new_tokens,
            pad_token_id=self.tokenizer.eos_token_id,
        )
        generation_contains_input = (
            input_ids["input_ids"][0] == generations[0][: input_ids["input_ids"].shape[1]]
        ).all()
        if self.config.remove_prompt_from_generated_text and not generation_contains_input:
            warnings.warn(
                "Your model does not return the prompt as part of its generations. "
                "`remove_prompt_from_generated_text` does nothing."
            )
        if self.config.remove_prompt_from_generated_text and generation_contains_input:
            output = self.tokenizer.batch_decode(generations[:, input_ids["input_ids"].shape[1] :])[0]
        else:
            output = self.tokenizer.batch_decode(generations, skip_special_tokens=True)[0]

        with torch.inference_mode():
            input_ids = self.tokenizer(self.tokenizer.bos_token + prompt, return_tensors="pt")["input_ids"]
            model_output = self.model(input_ids, labels=input_ids)
            probability = -model_output[0].item()

        return output, probability

Next, create an instance of HFModelConfig and HuggingFaceCausalLLMModelRunner with the model information.

hf_config = HFModelConfig(model_name="gpt2", max_new_tokens=32)
model = HuggingFaceCausalLLMModelRunner(model_config=hf_config)

Then, select and configure the evaluation algorithm.

# Let's evaluate the FM for FactualKnowledge
from amazon_fmeval.fmeval import get_eval_algorithm
from amazon_fmeval.eval_algorithms.factual_knowledge import FactualKnowledgeConfig

eval_algorithm_config = FactualKnowledgeConfig("<OR>")
eval_algorithm = get_eval_algorithm("factual_knowledge", eval_algorithm_config)

Let’s first test with one sample. The evaluation score is the percentage of factually correct responses.

model_output = model.predict("London is the capital of")[0]
print(model_output)

eval_algo.evaluate_sample(
    target_output="UK<OR>England<OR>United Kingdom", 
	model_output=model_output
)
the UK, and the UK is the largest producer of food in the world.

The UK is the world's largest producer of food in the world.
[EvalScore(name='factual_knowledge', value=1)]

Although it’s not a perfect response, it includes “UK.”

Next, you can evaluate the FM using built-in datasets or define your custom dataset. If you want to use a custom evaluation dataset, create an instance of DataConfig:

config = DataConfig(
    dataset_name="my_custom_dataset",
    dataset_uri="dataset.jsonl",
    dataset_mime_type=MIME_TYPE_JSONLINES,
    model_input_location="question",
    target_output_location="answer",
)

eval_output = eval_algorithm.evaluate(
    model=model, 
    dataset_config=config, 
    prompt_template="$feature", #$feature is replaced by the input value in the dataset 
    save=True
)

The evaluation results will return a combined evaluation score across the dataset and detailed results for each model input stored in a local output path.

Join the preview
FM evaluation with Amazon SageMaker Clarify is available today in public preview in AWS Regions US East (Ohio), US East (N. Virginia), US West (Oregon), Asia Pacific (Singapore), Asia Pacific (Tokyo), Europe (Frankfurt), and Europe (Ireland). The FMEval open source library] is available on GitHub. To learn more, visit Amazon SageMaker Clarify.

Get started
Log in to the AWS Management Console and start evaluating your FMs with SageMaker Clarify today!

— Antje

Introducing Amazon SageMaker HyperPod, a purpose-built infrastructure for distributed training at scale

Post Syndicated from Antje Barth original https://aws.amazon.com/blogs/aws/introducing-amazon-sagemaker-hyperpod-a-purpose-built-infrastructure-for-distributed-training-at-scale/

Today, we are introducing Amazon SageMaker HyperPod, which helps reducing time to train foundation models (FMs) by providing a purpose-built infrastructure for distributed training at scale. You can now use SageMaker HyperPod to train FMs for weeks or even months while SageMaker actively monitors the cluster health and provides automated node and job resiliency by replacing faulty nodes and resuming model training from a checkpoint.

The clusters come preconfigured with SageMaker’s distributed training libraries that help you split your training data and model across all the nodes to process them in parallel and fully utilize the cluster’s compute and network infrastructure. You can further customize your training environment by installing additional frameworks, debugging tools, and optimization libraries.

Let me show you how to get started with SageMaker HyperPod. In the following demo, I create a SageMaker HyperPod and show you how to train a Llama 2 7B model using the example shared in the AWS ML Training Reference Architectures GitHub repository.

Create and manage clusters
As the SageMaker HyperPod admin, you can create and manage clusters using the AWS Management Console or AWS Command Line Interface (AWS CLI). In the console, navigate to Amazon SageMaker, select Cluster management under HyperPod Clusters in the left menu, then choose Create a cluster.

Amazon SageMaker HyperPod Clusters

In the setup that follows, provide a cluster name and configure instance groups with your instance types of choice and the number of instances to allocate to each instance group.

Amazon SageMaker HyperPod

You also need to prepare and upload one or more lifecycle scripts to your Amazon Simple Storage Service (Amazon S3) bucket to run in each instance group during cluster creation. With lifecycle scripts, you can customize your cluster environment and install required libraries and packages. You can find example lifecycle scripts for SageMaker HyperPod in the GitHub repo.

Using the AWS CLI
You can also use the AWS CLI to create and manage clusters. For my demo, I specify my cluster configuration in a JSON file. I choose to create two instance groups, one for the cluster controller node(s) that I call “controller-group,” and one for the cluster worker nodes that I call “worker-group.” For the worker nodes that will perform model training, I specify Amazon EC2 Trn1 instances powered by AWS Trainium chips.

// demo-cluster.json
{
   "InstanceGroups": [
        {
            "InstanceGroupName": "controller-group",
            "InstanceType": "ml.m5.xlarge",
            "InstanceCount": 1,
            "lifecycleConfig": {
                "SourceS3Uri": "s3://<your-s3-bucket>/<lifecycle-script-directory>/",
                "OnCreate": "on_create.sh"
            },
            "ExecutionRole": "arn:aws:iam::111122223333:role/my-role-for-cluster",
            "ThreadsPerCore": 1
        },
        {
            "InstanceGroupName": "worker-group",
            "InstanceType": "trn1.32xlarge",
            "InstanceCount": 4,
            "lifecycleConfig": {
                "SourceS3Uri": "s3://<your-s3-bucket>/<lifecycle-script-directory>/",
                "OnCreate": "on_create.sh"
            },
            "ExecutionRole": "arn:aws:iam::111122223333:role/my-role-for-cluster",
            "ThreadsPerCore": 1
        }
    ]
}

To create the cluster, I run the following AWS CLI command:

aws sagemaker create-cluster \
--cluster-name antje-demo-cluster \
--instance-groups file://demo-cluster.json

Upon creation, you can use aws sagemaker describe-cluster and aws sagemaker list-cluster-nodes to view your cluster and node details. Note down the cluster ID and instance ID of your controller node. You need that information to connect to your cluster.

You also have the option to attach a shared file system, such as Amazon FSx for Lustre. To use FSx for Lustre, you need to set up your cluster with an Amazon Virtual Private Cloud (Amazon VPC) configuration. Here’s an AWS CloudFormation template that shows how to create a SageMaker VPC and how to deploy FSx for Lustre.

Connect to your cluster
As a cluster user, you need to have access to the cluster provisioned by your cluster admin. With access permissions in place, you can connect to the cluster using SSH to schedule and run jobs. You can use the preinstalled AWS CLI plugin for AWS Systems Manager to connect to the controller node of your cluster.

For my demo, I run the following command specifying my cluster ID and instance ID of the control node as the target.

aws ssm start-session \
--target sagemaker-cluster:ntg44z9os8pn_i-05a854e0d4358b59c \
--region us-west-2

Schedule and run jobs on the cluster using Slurm
At launch, SageMaker HyperPod supports Slurm for workload orchestration. Slurm is a popular an open source cluster management and job scheduling system. You can install and set up Slurm through lifecycle scripts as part of the cluster creation. The example lifecycle scripts show how. Then, you can use the standard Slurm commands to schedule and launch jobs. Check out the Slurm Quick Start User Guide for architecture details and helpful commands.

For this demo, I’m using this example from the AWS ML Training Reference Architectures GitHub repo that shows how to train Llama 2 7B on Slurm with Trn1 instances. My cluster is already setup with Slurm, and I have an FSx for Lustre filesystem mounted.

Note
The Llama 2 model is governed by Meta. You can request access through the Meta request access page.

Set up the cluster environment
SageMaker HyperPod supports training in a range of environments, including Conda, venv, Docker, and enroot. Following the instructions in the README, I build my virtual environment aws_neuron_venv_pytorch and set up the torch_neuronx and neuronx-nemo-megatron libraries for training models on Trn1 instances.

Prepare model, tokenizer, and dataset
I follow the instructions to download the Llama 2 model and tokenizer and convert the model into the Hugging Face format. Then, I download and tokenize the RedPajama dataset. As a final preparation step, I pre-compile the Llama 2 model using ahead-of-time (AOT) compilation to speed up model training.

Launch jobs on the cluster
Now, I’m ready to start my model training job using the sbatch command.

sbatch --nodes 4 --auto-resume=1 run.slurm ./llama_7b.sh

You can use the squeue command to view the job queue. Once the training job is running, the SageMaker HyperPod resiliency features are automatically enabled. SageMaker HyperPod will automatically detect hardware failures, replace nodes as needed, and resume training from checkpoints if the auto-resume parameter is set, as shown in the preceding command.

You can view the output of the model training job in the following file:

tail -f slurm-run.slurm-<JOB_ID>.out

A sample output indicating that model training has started will look like this:

Epoch 0:  22%|██▏       | 4499/20101 [22:26:14<77:48:37, 17.95s/it, loss=2.43, v_num=5563, reduced_train_loss=2.470, gradient_norm=0.121, parameter_norm=1864.0, global_step=4512.0, consumed_samples=1.16e+6, iteration_time=16.40]
Epoch 0:  22%|██▏       | 4500/20101 [22:26:32<77:48:18, 17.95s/it, loss=2.43, v_num=5563, reduced_train_loss=2.470, gradient_norm=0.121, parameter_norm=1864.0, global_step=4512.0, consumed_samples=1.16e+6, iteration_time=16.40]
Epoch 0:  22%|██▏       | 4500/20101 [22:26:32<77:48:18, 17.95s/it, loss=2.44, v_num=5563, reduced_train_loss=2.450, gradient_norm=0.120, parameter_norm=1864.0, global_step=4512.0, consumed_samples=1.16e+6, iteration_time=16.50]

To further monitor and profile your model training jobs, you can use SageMaker hosted TensorBoard or any other tool of your choice.

Now available
SageMaker HyperPod is available today in AWS Regions US East (Ohio), US East (N. Virginia), US West (Oregon), Asia Pacific (Singapore), Asia Pacific (Sydney), Asia Pacific (Tokyo), Europe (Frankfurt), Europe (Ireland), and Europe (Stockholm).

Learn more:

— Antje

PS: Writing a blog post at AWS is always a team effort, even when you see only one name under the post title. In this case, I want to thank Brad Doran, Justin Pirtle, Ben Snyder, Pierre-Yves Aquilanti, Keita Watanabe, and Verdi March for their generous help with example code and sharing their expertise in managing large-scale model training infrastructures, Slurm, and SageMaker HyperPod.

How to improve your security incident response processes with Jupyter notebooks

Post Syndicated from Tim Manik original https://aws.amazon.com/blogs/security/how-to-improve-your-security-incident-response-processes-with-jupyter-notebooks/

Customers face a number of challenges to quickly and effectively respond to a security event. To start, it can be difficult to standardize how to respond to a partic­ular security event, such as an Amazon GuardDuty finding. Additionally, silos can form with reliance on one security analyst who is designated to perform certain tasks, such as investigate all GuardDuty findings. Jupyter notebooks can help you address these challenges by simplifying both standardization and collaboration.

Jupyter Notebook is an open-source, web-based application to run and document code. Although Jupyter notebooks are most frequently used for data science and machine learning, you can also use them to more efficiently and effectively investigate and respond to security events.

In this blog post, we will show you how to use Jupyter Notebook to investigate a security event. With this solution, you can automate the tasks of gathering data, presenting the data, and providing procedures and next steps for the findings.

Benefits of using Jupyter notebooks for security incident response

The following are some ways that you can use Jupyter notebooks for security incident response:

  • Develop readable code for analysts – Within a notebook, you can combine markdown text and code cells to improve readability. Analysts can read context around the code cell, run the code cell, and analyze the results within the notebook.
  • Standardize analysis and response – You can reuse notebooks after the initial creation. This makes it simpler for you to standardize your incident response processes for how to respond to a certain type of security event. Additionally, you can use notebooks to achieve repeatable responses. You can rerun an entire notebook or a specific cell.
  • Collaborate and share incident response knowledge – After you create a Jupyter notebook, you can share it with peers to more seamlessly collaborate and share knowledge, which helps reduce silos and reliance on certain analysts.
  • Iterate on your incident response playbooks – Developing a security incident response program involves continuous iteration. With Jupyter notebooks, you can start small and iterate on what you have developed. You can keep Jupyter notebooks under source code control by using services such as AWS CodeCommit. This allows you to approve and track changes to your notebooks.

Architecture overview

Figure 1: Architecture for incident response analysis

Figure 1: Architecture for incident response analysis

The architecture shown in Figure 1 consists of the foundational services required to analyze and contain security incidents on AWS. You create and access the playbooks through the Jupyter console that is hosted on Amazon SageMaker. Within the playbooks, you run several Amazon Athena queries against AWS CloudTrail logs hosted in Amazon Simple Storage Service (Amazon S3).

Solution implementation

To deploy the solution, you will complete the following steps:

  1. Deploy a SageMaker notebook instance
  2. Create an Athena table for your CloudTrail trail
  3. Grant AWS Lake Formation access
  4. Access the Credential Compromise playbooks by using JupyterLab

Step 1: Deploy a SageMaker notebook instance

You will host your Jupyter notebooks on a SageMaker notebook instance. We chose to use SageMaker instead of running the notebooks locally because SageMaker provides flexible compute, seamless integration with CodeCommit and GitHub, temporary credentials through AWS Identity and Access Management (IAM) roles, and lower latency for Athena queries.

You can deploy the SageMaker notebook instance by using the AWS CloudFormation template from our jupyter-notebook-for-incident-response GitHub repository. We recommend that you deploy SageMaker in your security tooling account or an equivalent.

The CloudFormation template deploys the following resources:

  • A SageMaker notebook instance to run the analysis notebooks. Because this is a proof of concept (POC), the deployed SageMaker instance is the smallest instance type available. However, within an enterprise environment, you will likely need a larger instance type.
  • An AWS Key Management Service (AWS KMS) key to encrypt the SageMaker notebook instance and protect sensitive data.
  • An IAM role that grants the SageMaker notebook permissions to query CloudTrail, VPC Flow Logs, and other log sources.
  • An IAM role that allows access to the pre-signed URL of the SageMaker notebook from only an allowlisted IP range.
  • A VPC configured for SageMaker with an internet gateway, NAT gateway, and VPC endpoints to access required AWS services securely. The internet gateway and NAT gateway provide internet access to install external packages.
  • An S3 bucket to store results for your Athena log queries—you will reference the S3 bucket in the next step.

Step 2: Create an Athena table for your CloudTrail trail

The solution uses Athena to query CloudTrail logs, so you need to create an Athena table for CloudTrail.

There are two main ways to create an Athena table for CloudTrail:

For either of these methods to create an Athena table, you need to provide the URI of an S3 bucket. For this blog post, use the URI of the S3 bucket that the CloudFormation template created in Step 1. To find the URI of the S3 bucket, see the Output section of the CloudFormation stack.

Step 3: Grant AWS Lake Formation access

If you don’t use AWS Lake Formation in your AWS environment, skip to Step 4. Otherwise, continue with the following instructions. Lake Formation is how data access control for your Athena tables is managed.

To grant permission to the Security Log database

  1. Open the Lake Formation console.
  2. Select the database that you created in Step 2 for your security logs. If you used the Security Analytics Bootstrap, then the table name is either security_analysis or a custom name that you provided—you can find the name in the CloudFormation stack. If you created the Athena table by using the CloudTrail console, then the database is named default.
  3. From the Actions dropdown, select Grant.
  4. In Grant data permissions, select IAM users and roles.
  5. Find the IAM role used by the SageMaker Notebook instance.
  6. In Database permissions, select Describe and then Grant.

To grant permission to the Security Log CloudTrail table

  1. Open the Lake Formation console.
  2. Select the database that you created in Step 2.
  3. Choose View Tables.
  4. Select CloudTrail. If you created VPC flow log and DNS log tables, select those, too.
  5. From the Actions dropdown, select Grant.
  6. In Grant data permissions, select IAM users and roles.
  7. Find the IAM role used by the SageMaker notebook instance.
  8. In Table permissions, select Describe and then Grant.

Step 4: Access the Credential Compromise playbooks by using JupyterLab

The CloudFormation template clones the jupyter-notebook-for-incident-response GitHub repo into your Jupyter workspace.

You can access JupyterLab hosted on your SageMaker notebook instance by following the steps in the Access Notebook Instances documentation.

Your folder structure should match that shown in Figure 2. The parent folder should be jupyter-notebook-for-incident-response, and the child folders should be playbooks and cfn-templates.

Figure 2: Folder structure after GitHub repo is cloned to the environment

Figure 2: Folder structure after GitHub repo is cloned to the environment

Sample investigation of a spike in failed login attempts

In the following sections, you will use the Jupyter notebook that we created to investigate a scenario where failed login attempts have spiked. We designed this notebook to guide you through the process of gathering more information about the spike.

We discuss the important components of these notebooks so that you can use the framework to create your own playbooks. We encourage you to build on top of the playbook, and add additional queries and steps in the playbook to customize it for your organization’s specific business and security goals.

For this blog post, we will focus primarily on the analysis phase of incident response and walk you through how you can use Jupyter notebooks to help with this phase.

Before you get started with the following steps, open the credential-compromise-analysis.ipynb notebook in your JupyterLab environment.

How to import Python libraries and set environment variables

The notebooks require that you have the following Python libraries:

  • Boto3 – to interact with AWS services through API calls
  • Pandas – to visualize the data
  • PyAthena – to simplify the code to connect to Athena

To install the required Python libraries, in the Setup section of the notebook, under Load libraries, edit the variables in the two code cells as follows:

  • region – specify the AWS Region that you want your AWS API commands to run in (for example, us-east-1).
  • athena_bucket – specify the S3 bucket URI that is configured to store your Athena queries. You can find this information at Athena > Query Editor > Settings > Query result location.
  • db_name – specify the database used by Athena that contains your Athena table for CloudTrail.
Figure 3: Load the Python libraries in the notebook

Figure 3: Load the Python libraries in the notebook

This helps ensure that subsequent code cells that run are configured to run in your environment.

Run each code cell by choosing the cell and pressing SHIFT+ENTER or by choosing the play button (▶) in the toolbar at the top of the console.

How to set up the helper function for Athena

The Python query_results function, shown in the following figure, helps you query Athena tables. Run this code cell. You will use the query_results function later in the 2.0 IAM Investigation section of the notebook.

Figure 4: Code cell for the helper function to query with Athena

Figure 4: Code cell for the helper function to query with Athena

Credential Compromise Analysis Notebook

The credential-compromise-analysis.ipynb notebook includes several prebuilt queries to help you start your investigation of a potentially compromised credential. In this post, we discuss three of these queries:

  • The first query provides a broad view by retrieving the CloudTrail events related to authorization failures. By reviewing these results, you get baseline information about where users and roles are attempting to access resources or take actions without having the proper permissions.
  • The second query narrows the focus by identifying the top five IAM entities (such as users, roles, and identities) that are causing most of the authorization failures. Frequent failures from specific entities often indicate that their credentials are compromised.
  • The third query zooms in on one of the suspicious entities from the previous query. It retrieves API activity and events initiated by that entity across AWS services or resource. Analyzing actions performed by a suspicious entity can reveal if valid permissions are being misused or if the entity is systematically trying to access resources it doesn’t have access to.

Investigate authorization failures

The notebook has markdown cells that provide a description of the expected result of the query. The next cell contains the query statement. The final cell calls the query_result function to run your query by using Athena and display your results in tabular format.

In query 2.1, you query for specific error codes such as AccessDenied, and filter for anything that is an IAM entity by looking for useridentity.arn like ‘%iam%’. The notebook orders the entries by eventTime. If you want to look for specific IAM Identity Center entities, update the query to filter by useridentity.sessioncontext.sessionissuer.arn like ‘%sso.amazonaws.com%’.

This query retrieves a list of failed API calls to AWS services. From this list, you can gain additional insight into the context surrounding the spike in failed login attempts.

When you investigate denied API access requests, carefully examine details such as the user identity, timestamp, source IP address, and other metadata. This information helps you determine if the event is a legitimate threat or a false positive. Here are some specific questions to ask:

  • Does the IP address originate from within your network, or is it external? Internal addresses might be less concerning.
  • Is the access attempt occurring during normal working hours for that user? Requests outside of normal times might warrant more scrutiny.
  • What resources or changes is the user trying to access or make? Attempts to modify sensitive data or systems might indicate malicious intent.

By thoroughly evaluating the context around denied API calls, you can more accurately assess the risk they pose and whether you need to take further action. You can use the specifics in the logs to go beyond just the fact that access was denied, and learn the story of who, when, and why.

As shown in the following figure, the queries in the notebook use the following structure.

  1. Markdown cell to explain the purpose of the query (the query statement).
  2. Code cell to run the query and display the query results.

In the figure, the first code cell that runs stores the input for the query statement. After that finishes, the next code block displays the query results.

Figure 5: Run predefined Athena queries in JupyterLab

Figure 5: Run predefined Athena queries in JupyterLab

Figure 6 shows the output of the query that you ran in the 2.1 Investigation Authorization Failures section. It contains critical details for understanding the context around a denied API call:

  • The eventtime field shows the date and time that the request was completed.
  • The useridentity field reveals which IAM identity made a request.
  • The sourceipddress provides the IP address that the request was made from.
  • The useragent shows which client or app was used to make the call.
Figure 6: Results from the first investigative query

Figure 6: Results from the first investigative query

Figure 6 only shows a subset of the many details captured in CloudTrail logs. By scrolling to the right in the query output, you can view additional attributes that provide further context around the event. The CloudTrail record contents guide contains a comprehensive list of the fields included in the logs, along with descriptions of each attribute.

Often, you will need to search for more information to determine if remediation is necessary. For this reason, we have included additional queries to help you further examine the sequence of events leading up to the failed login attempt spike and after the spike occurred.

Triaging suspicious entities (Queries 2.2 and 2.3)

By running the second and third queries you can dig deeper into anomalous authorization failures. As shown in Figure 7, Query 2.2 provides the top five IAM entities with the most frequent access denials. This highlights the specific users, roles, and identities causing the most failures, which indicates potentially compromised credentials.

Query 2.3 takes the investigation further by isolating the activity from one suspicious entity. Retrieving the actions attempted by a single problematic user or role reveals useful context to determine if you need to revoke credentials. For example, is the entity probing resources that it shouldn’t have access to? Are there unusual API calls outside of normal hours? By scrutinizing an entity’s full history, you can make an informed decision on remediation.

Figure 7: Overview of queries 2.2 and 2.3

Figure 7: Overview of queries 2.2 and 2.3

You can use these two queries together to triage authorization failures: query 2 identifies high-risk entities, and query 3 gathers intelligence to drive your response. This progression from a macro view to a micro view is crucial for transforming signals into action.

Although log analysis relies on automation and queries to facilitate insights, human judgment is essential to interpret these signals and determine the appropriate response. You should discuss flagged events with stakeholders and resource owners to benefit from their domain expertise. You can export the results of your analysis by exporting your Jupyter notebook.

By collaborating with other people, you can gather contextual clues that might not be captured in the raw data. For example, an owner might confirm that a suspicious login time is expected for users in a certain time zone. By pairing automated detection with human perspectives, you can accurately assess risk and decide if credential revocation or other remediation is truly warranted. Uptime or downtime technical issues alone can’t dictate if remediation is necessary—the human element provides pivotal context.

Build your own queries

In addition to the existing queries, you can run your own queries and include them in your copy of the Credential-compromise-analysis.ipynb notebook. The AWS Security Analytics Bootstrap contains a library of common Athena queries for CloudTrail. We recommend that you review these queries before you start to build your own queries. The key takeaway is that these notebooks are highly customizable. You can use the Jupyter Notebook application to help meet the specific incident response requirements of your organization.

Contain compromised IAM entities

If the investigation reveals that a compromised IAM entity requires containment, follow these steps to revoke access:

  • For federated users, revoke their active AWS sessions according to the guidance in How to revoke federated users’ active AWS sessions. This uses IAM policies and AWS Organizations service control policies (SCPs) to revoke access to assumed roles.
  • Avoid using long-lived IAM credentials such as access keys. Instead, use temporary credentials through IAM roles. However, if you detect a compromised access key, immediately rotate or deactivate it by following the guidance in What to Do If You Inadvertently Expose an AWS Access Key. Review the permissions granted to the compromised IAM entity and consider if these permissions should be reduced after access is restored. Overly permissive policies might have enabled broader access for the threat actor.

Going forward, implement least privilege access and monitor authorization activity to detect suspicious behavior. By quickly containing compromised entities and proactively improving IAM hygiene, you can minimize the adversaries’ access duration and prevent further unauthorized access.

Additional considerations

In addition to querying CloudTrail, you can use Athena to query other logs, such as VPC Flow Logs and Amazon Route 53 DNS logs. You can also use Amazon Security Lake, which is generally available, to automatically centralize security data from AWS environments, SaaS providers, on-premises environments, and cloud sources into a purpose-built data lake stored in your account. To better understand which logs to collect and analyze as part of your incident response process, see Logging strategies for security incident response.

We recommended that you understand the playbook implementation described in this blog post before you expand the scope of your incident response solution. The running of queries and automation of containment are two elements to consider as you think about the next steps to evolve your incident response processes.

Conclusion

In this blog post, we showed how you can use Jupyter notebooks to simplify and standardize your incident response processes. You reviewed how to respond to a potential credential compromise incident using a Jupyter notebook style playbook. You also saw how this helps reduce the time to resolution and standardize the analysis and response. Finally, we presented several artifacts and recommendations showing how you can tailor this solution to meet your organization’s specific security needs. You can use this framework to evolve your incident response process.

Further resources

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Tim Manik

Tim Manik

Tim is a Solutions Architect at AWS working with enterprise customers in North America. He specializes in cybersecurity and AI/ML. When he’s not working, you can find Tim exploring new hiking trails, swimming, or playing the guitar.

Daria Pshonkina

Daria Pshonkina

Daria is a Solutions Architect at AWS supporting enterprise customers that started their business journey in the cloud. Her specialization is in security. Outside of work, she enjoys outdoor activities, travelling, and spending quality time with friends and family.

Bryant Pickford

Bryant Pickford

Bryant is a Security Specialist Solutions Architect within the Prototyping Security team under the Worldwide Specialist Organization. He has experience in incident response, threat detection, and perimeter security. In his free time, he likes to DJ, make music, and skydive.