Amazon SageMaker Clarify

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Amazon SageMaker Clarify

Amazon SageMaker Clarify Cheat Sheet

  • Amazon SageMaker Clarify is a SageMaker AI feature for detecting bias and explaining model predictions.
  • Supports both pre-training and post-training bias analysis.
  • Provides feature attribution to explain how input features influence predictions.
  • Can monitor deployed models for bias drift and feature attribution drift over time.

Key Capabilities

Bias Detection

  • Pre-training bias: Analyzes datasets before model training.
  • Post-training bias: Evaluates model predictions for fairness across facets.
  • Supports binary, multiclass, and regression tasks.

Interpreting Model Behavior

  • Offers feature attributions via SHAP (SHapley Additive exPlanations), Partial Dependence Plots (PDP), etc.
  • Explains individual predictions and global feature importance.
  • Works with both tabular and text data.

Monitoring

  • Detects bias drift and feature attribution drift in real-time.
  • Integrates with SageMaker Model Monitor for continuous evaluation.
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Integrations

  • Integration with SageMaker Autopilot: Clarify-based explanations for AutoML models.
  • Integration with SageMaker Data Wrangler— helps address detected bias through data balancing techniques (undersampling/oversampling/SMOTE).

Core Components

Configuration Objects

  • DataConfig: Specifies the source dataset and the destination path for output artifacts.
  • ModelConfig: Identifies the model container or endpoint to be evaluated during the analysis.
  • BiasConfig: Facets and label information for bias analysis.
  • SHAPConfig: Parameters for SHAP-based explainability.
  • ModelPredictedLabelConfig: Specifies how to extract predicted labels.

Processing Job Setup

  • Use SageMakerClarifyProcessor in SageMaker SDK.
  • Define ProcessingInput and ProcessingOutput.
  • Launch via run() method with all config objects.

Configuration Components

Analysis Configuration File (JSON)

  • Defines bias or explainability parameters.
  • Supports CSV, JSON Lines, and JSON datasets.
  • Compatible with tabular, text, image, and time-series data.

SageMakerClarifyProcessor (Python SDK)

  • High-level API to run Clarify jobs.
  • Key methods:
    • run_bias_and_explainability
    • run_post_training_bias
    • run_explainability (SHAP / PDP)
    • Supports combined SHAP + PDP jobs.

Bias Metrics Overview

Pre-training Bias Metrics

  • Class Imbalance: Distribution of labels across facets.
  • Differential Validity: Accuracy differences across groups.

Post-training Bias Metrics

  • Disparate Impact: Ratio of favorable outcomes between groups.
  • Equal Opportunity: True positive rate parity.
  • Predictive Parity: Positive predictive value parity.
  • Overall Accuracy Equality: Accuracy parity across groups.

SHAP Explainability

  • Computes local explanations for each prediction.
  • Aggregates to global feature importance.
  • Outputs include:
    • SHAP values per feature
    • Summary plots
    • Feature importance rankings

 

Validate Your Knowledge

Question 1

A retail company leverages machine learning models to predict quarterly sales and optimize inventory management. In response to stakeholder requests, the data science team has been tasked with providing a comprehensive report that ensures transparency and explains the rationale behind the models’ decisions.

What should the data science team present to clearly explain the model’s recommendation process?

  1. Hyperparameter tuning results
  2. Partial dependence plots (PDPs)
  3. Feature engineering scripts
  4. Model convergence tables

Correct Answer: 2

Amazon SageMaker Clarify, which includes using Partial Dependence Plots (PDPs), helps visualize the impact of different features on a model’s predictions. This allows stakeholders to better understand each feature’s role in the model’s decision-making process, enhancing overall model transparency.

Amazon SageMaker Clarify generates partial dependence plots (PDPs) to display the marginal effect of features on a machine learning model’s predicted outcome. These plots help explain the target response with specific input features. Clarify also extends explainability to both computer vision (CV) and natural language processing (NLP) by utilizing the same Shapley values (SHAP) algorithm that is used for explaining tabular data models.

Partial Dependence Plots (PDPs) are a powerful tool for explaining machine learning models by showing the relationship between features and the model’s predictions. They provide transparency by displaying how changing a feature affects the prediction while keeping other features constant. PDPs help understand the influence of each feature on the model’s decisions, which is particularly useful for explaining the model’s behavior to stakeholders.

Hence, the correct answer is: Partial dependence plots (PDPs).

The option that says: Hyperparameter tuning results is incorrect because it primarily focuses on model optimization rather than explaining the decision-making process to stakeholders. Hyperparameter tuning affects performance but does not directly contribute to model explainability.

The option that says: Feature engineering scripts is incorrect because they only involve data preprocessing steps and transformations applied to the raw data. While these scripts are crucial for building the model, they do not directly explain how the model makes decisions.

The option that says: Model convergence tables is incorrect because they just provide information on the model’s training progress but do not offer insights into the rationale behind the model’s predictions.

 

References:

https://docs.aws.amazon.com/sagemaker/latest/dg/clarify-processing-job-analysis-results.html#clarify-processing-job-analysis-results-pdp

https://docs.aws.amazon.com/sagemaker/latest/dg/clarify-processing-job-configure-analysis.html

https://docs.aws.amazon.com/sagemaker/latest/dg/clarify-model-explainability.html

 

Check out this Amazon SageMaker Cheat Sheet:

https://tutorialsdojo.com/amazon-sagemaker/

Note: This question was extracted from our AWS Certified AI Practitioner Practice Exams AIF-C01.

Amazon SageMaker Clarify Cheat Sheet Resources:

https://docs.aws.amazon.com/sagemaker/latest/dg/clarify-configure-processing-jobs.html
https://docs.aws.amazon.com/sagemaker/latest/dg/clarify-shapley-values.html
https://docs.aws.amazon.com/sagemaker/latest/dg/clarify-processing-job-configure-parameters.html
https://docs.aws.amazon.com/sagemaker/latest/dg/clarify-processing-job-run.html

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Written by: Nestor Mayagma Jr.

Nestor is a cloud engineer and member of the AWS Community Builder. He continuously strives to expand his knowledge and expertise in AWS to foster personal and professional growth. He also shares his insights with the community through numerous AWS blogs, highlighting his commitment to Cloud Computing technology. In his leisure time, he indulges in playing FPS and other online games.

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