AI Stack on AWS: Amazon SageMaker and Beyond
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Looking to learn more about AWS AI stack? Join experts from Provectus & AWS to find out how to use Amazon SageMaker (with combination with other tools and services) to enable enterprise-wide AI. Companies are looking to scale and become more productive when it comes to AI and data initiatives. They seek to launch AI projects more rapidly, which, among many other factors, requires a robust machine learning infrastructure. In this webinar, you will learn how to create a canonical SageMaker workflow, expand the SageMaker workflow to a holistic implementation, enhance and expand the implementation using best practices for feature store, data versioning, ML pipeline orchestration, and model monitoring. Agenda - Introductions - Amazon SageMaker Overview - Real-World Use Case - Data Lake for Machine Learning - Amazon SageMaker Experiments - Orchestration Beyond SageMaker Experiments - Amazon SageMaker Debugger - Amazon SageMaker Model Monitor - Webinar Takeaways Intended audience Technology executives & decision makers, manager-level tech roles, data engineers & data scientists, ML practitioners & ML engineers, and developers Presenters - Stepan Pushkarev, Chief Technology Officer, Provectus - Pritpal Sahota, Technical Account Manager, Provectus - Christopher A. Burns, Sr. AI/ML Solution Architect, AWS Feel free to share this presentation with your colleagues and don't hesitate to reach out to us at info@provectus.com if you have any questions! REQUEST WEBINAR: https://provectus.com/ai-stack-on-aws-sagemaker-and-beyond-mar-2020/
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AI Stack on AWS: Amazon SageMaker and Beyond
- 1. AI Stack on AWS: Amazon SageMaker and Beyond Presented by: Stepan Pushkarev, CTO @ Provectus Chris Burns, Senior AI/ML Solutions Architect @ AWS Pritpal Sahota, Technical Account Executive @ Provectus
- 2. Introductions This webinar is brought to you by Provectus & AWS Pritpal Sahota Technical Account Executive, Provectus Chris Burns Senior AI/ML Solutions Architect, AWS Stepan Pushkarev Chief Technology Officer, Provectus
- 3. Provectus: AI consultancy and Solutions provider Established in 2010, Headquartered in Palo Alto 450 engineers and growingOffices across the US, Canada, and Europe Clients: fast-growing startups and large enterprises AWS Competency Partner in DevOps, Data & Analytics, and Machine Learning
- 4. 1. Mid-to-proficiency level in Machine Learning a. or proficiency level in system / cloud architecture 2. Familiarity with AWS ecosystem 3. Familiarity with SageMaker fundamentals (notebooks, training, hosting) SageMaker and Beyond prerequisites
- 5. 1. Deep understanding of Amazon SageMaker capabilities, limitations, and opportunities 2. Best practices for using Amazon SageMaker with open-source tools for better experience and productivity 3. Holistic understanding of integration of ML process into the rest of AWS architecture SageMaker and Beyond outcomes
- 6. VISION SPEECH TEXT SEARCH NEW CHATBOTS PERSONALIZATION FORECASTING FRAUD NEW DEVELOPMENT NEW CONTACT CENTERS Amazon SageMaker Amazon SageMaker Ground Truth Amazon A2I Amazon SageMaker Neo Built-in algorithms SageMaker Notebooks NEW SageMaker Experiments NEW Model tuning SageMaker Debugger NEW SageMaker Autopilot NEW Model hosting SageMaker Model Monitor NEW Deep Learning AMIs & Containers GPUs & CPUs Elastic Inference Inferentia FPGA Amazon Rekognition Amazon Polly Amazon Transcribe +Medical Amazon Comprehend +Medical Amazon Translate Amazon Lex Amazon Personalize Amazon Forecast Amazon Fraud Detector Amazon CodeGuru AWS AI Services AWS ML Services + Provectus Foundation Solutions AWS ML Frameworks & Infrastructure Amazon Textract Amazon Kendra Contact Lens For Amazon Connect Amazon SageMaker Studio IDE NEW NEW Supply Chain Optimization Customer Support Automation Disease Screening & Diagnosis Worker Health Safety Customer Retention Optimization Claims & Document Processing Provectus Value-adding AI Solutions Feature Store Kubeflow Orchestration MLOps Advanced Monitoring NEW
- 8. Feature Store Store and reuse features to build ML models faster ML Workflow Orchestrator Reproduce and track the whole ML Workflow Athena ML Inference ML models from SQL Dataset Versioning Track and govern training datasets Data Sampling Sample from production streams Elastic Inference Save GPU costs Amazon SageMaker Processing Data Processing & Model Evaluation
- 9. ML Infrastructure - Nice to Have or Must-Have?
- 10. Must-Have Use Case: FDA Compliant Disease Screening
- 11. Screening at birth for potential pathologies helps find an expert ophthalmologist who can evaluate, treat and prevent disease. Pr3vent
- 12. Pr3vent Best time for treatment Screened Too late?4 million babies are neither screened nor treated Infancy, 1-5 years KindergartenPremature
- 13. FDA Guidelines
- 14. ML infrastructure to comply with FDA Guidelines Auditable and trusted environment Data annotation Raw data Experiment ation Model catalogue Testing Production inferencing Monitoring Maintenan ce
- 15. Start with Data: Data Lake for ML
- 16. Enterprise Machine Learning starts with Data 1. Machine Learning Datasets Reproducibility 2. Models Datasets Versioning 3. Machine Learning Datasets Bias detection and Fairness 4. Machine Learning Datasets Auditability 5. Model Data Lake Governance 6. Model Data Monitoring
- 17. Data Lake Characteristics 1. Powered by data pipelines 2. Infinity dataset 3. Cheap storage 4. Decoupled from compute 5. Columnar Access a. Optimized Parquet file size 6. Append only 7. Partitioned 8. Exposes Metadata for each column: a. Type b. Description c. Source (Lineage) d. SLA
- 18. 1. Includes Model Metadata: a. Prediction, confidence b. Other model output c. Model name & version d. Model Monitoring checks 2. Includes Annotation Metadata a. Labeling job ID b. Judgements c. Agreements 3. Has Governance Metadata for each column: a. Owner b. Description c. Last updated, SLA d. Upstream ML models (used_by) e. Statistics (min, max, uniques, nulls) 4. Supports higher level operations a. Subsample b. Take a Snapshot Adding ML Awareness into Data Lake
- 19. Sampling - generating a versioned dataset
- 20. ML Dataset Characteristics 1. Immutable 2. Finity 3. Versioned 4. Could be downloaded locally (DVC) 5. Could be compared with other datasets 6. Exposes Metadata: a. Dataset Owner b. Subsample pipeline version c. Subsample pipeline parameters
- 21. ML Featurization
- 22. Feature Store Characteristics 1. Where ML Training job starts 2. Where ML adoption is accelerated 3. Immutable 4. Versioned 5. Each version could be downloaded locally 6. Could be compared with other versions 5. Exposes Metadata: a. Owner b. Subsample pipeline version c. Subsample pipeline parameters d. Upstream models e. Feature descriptions f. Feature versions
- 23. Data Layer for ML: Summary 1. Add ML Awareness into Data Lake by enriching it with ML specific metadata 2. Invest into reusable sampling, featurization and other steps of the pipeline 3. Build it yourself with AWS tools like Amazon EMR, Athena, DynamoDB, AWS Glue Catalogue 4. Amplify the adoption of ML by introducing a centralized feature store
- 25. Experimentation Flow Data Preprocessing Model Training Model Evaluation
- 26. Tensorboard is good to track Training ● Log training metrics and other scalars ● Examine execution graph ● TensorFlow, PyTorch ● Hyperparameter tuning ● What-IF tool ● Evaluate model with fairness indicators ● Profiling tool
- 27. … but has its flaws ● Tracks training step logs only ● Doesn’t track run parameters ● Comparing runs is not as straightforward as it could be ● TensorFlow, PyTorch only ● Do it Yourself on AWS
- 28. Amazon SageMaker Experiments ● Offers seamless integration into the existing ML workflow ● Offers a structured organization scheme to help users group and organize their machine learning iterations ● Provides tracking and analytics of experiments ● Facilitates decomposition of monolithic workflow into multiple steps
- 29. Tracking Capabilities ● Parameters ● Inputs ● Outputs ● Artifacts ● Metrics
- 30. Analyzing experiments in Studio ● Visualize information about experiments and their trials in real-time with predefined widgets using Amazon Sagemaker Studio
- 31. Analysing experiments using SDK ● All logged information about an experiment can be easily exported to a Pandas DataFrame
- 32. AWS Sagemaker Experiments: Summary Pros ○ Fully managed ○ Ability to track a rich set of parameters ○ Ability to build complex plots from Studio ○ Ability to extract all logged information for custom analysis ○ Native integration with Amazon SageMaker Autopilot, Amazon SageMaker Endpoints Current limitations / things to be aware of ○ Does not allow building complex DAGs, i.e. sequential execution only ○ Lack of instruments for configuring robust pipelines ○ Available within AWS Sagemaker Studio only - per user context, can not compare runs by different users ○ Can not compare trials from different runs
- 33. Build & Train: Orchestration Beyond SageMaker Experiments
- 34. Kubeflow: Orchestrator of Choice
- 35. Orchestrate it all with Kubeflow Pipelines
- 36. Kubeflow on AWS Best Practices: ● Invest into a library of reusable components ● Use SageMaker Operators for Kubernetes ● Deploy on EKS ● Use separate on-demand/spot nodegroups for CPU/GPU bound ML tasks ● Use Amazon FSx for Lustre to avoid data transfer from Amazon S3 ● Integrate with Amazon Cognito
- 37. Kubeflow on AWS Challenges: ● Under rapid development ● Still needs Ops support even on EKS ● Resource management between service and ML workloads ● Poor support from AWS community Best Practices: ● Invest into a library of reusable steps ● Use SageMaker Operators for Kubernetes ● Deploy on EKS ● Use separate on-demand/spot nodegroups for CPU/GPU bound ML tasks ● Use FSx for Lustre to avoid data transfer from S3 ● Integrate with AWS Cognito
- 38. Kubeflow Pipelines: Summary ● Extends beyond SageMaker ecosystem ● Built on top of Argo Workflows, facilitates GitOps ● Allows building complex processing DAGs ● Rich purposely built UI ● Growing opensource community ● Requires deep Kubernetes/Ops expertise
- 40. Code ● Unit tests ● Logging ● Peer review How to debug models? Experiments ● Assert model parameters ● Track loss curves / metrics during training ● Check model outputs
- 42. Can we go beyond curves?
- 43. SageMaker Debugger — Logging + Statistics + Alerts
- 44. ● Vanishing gradients ● Overfitting ● Poor weight initialization ● Saturated activations ● Overpruned trees Out of the box Rules
- 45. SageMaker Debugger: Summary ● No warnings, errors only ● Not available for built-in algorithms Pros ● Flowing through the graph: goes beyond watching scalars (losses) during training and provides full visibility into history of all tensors ● Early stopping & near real time alerts ● Requires minimal instrumentation of the model code ● Growing set of out-of-the-box Rules Current limitations / things to be aware of
- 47. Monitoring Production Data Quality Alerts when issues appear
- 48. SageMaker Model Monitoring Goal Training Data Production Data
- 50. SageMaker endpoint requests predictions production request storage training data
- 51. SageMaker endpoint requests predictions production request storage training data baseline statistics SageMaker Processing Job
- 52. SageMaker endpoint requests predictions training data baseline statistics SageMaker Processing Job Scheduled Monitoring Job generated reports: statistics and violations production request storage
- 53. SageMaker endpoint requests predictions SageMaker Processing Job Scheduled Monitoring Job generated reports: statistics and violations training data baseline statistics production request storage
- 54. SageMaker endpoint requests predictions training data baseline statistics SageMaker Processing Job Scheduled Monitoring Job generated reports: statistics and violations production request storage
- 55. What is REALLY SageMaker Model Monitoring?
- 56. Scheduled Monitoring Job Pre Built Container in a nutshell
- 57. Scheduled Monitoring Job ➔ Min ➔ Max ➔ Sum ➔ Sample Count ➔ Average ➔ Completeness ➔ Baseline Drift == two sample KS test ➔ Missing Columns ➔ Excessive columns
- 59. SageMaker endpoint requests predictions production request storage training data baseline statistics SageMaker Processing Job generated reports: statistics and violations ANYTHING YOU WANT
- 60. 1. Realtime processing and alerts 2. Image Data Drift 3. Text Data Drift 4. Anomaly Detection 5. Interpretability of drift Provectus Value Add Model Monitoring Features ANYTHING YOU WANT
- 61. 1. Built-in container with schema extractor from training data 2. Built-in container with Min/Max/Mean and KS test 3. Fully managed data wrangling, traffic shadowing, job scheduling, pushing metrics to CloudWatch and retrieving latest job results SageMaker Monitor: Summary
- 62. ● Modern ML infrastructure accelerates time to value for ML initiatives and increases trust from the business ● Amazon SageMaker has the broadest and deepest set of fully managed tools for building and managing AI applications at scale ● Complement it with the rest of AWS tools for data processing, storage & metadata management ● Complement it with mature opensource tools to go beyond main offerings Webinar Takeaways
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