
Laurent Lepage developed a built-in ShapExplainer function for the apache/systemds repository, enabling computation of Shapley values for feature attribution in machine learning models. He implemented supporting utilities for mask preparation, background data sampling, mask application, and final Shapley value calculation, all designed to enhance model interpretability. The work included comprehensive unit and component tests to ensure correctness and regression safety, reflecting a strong focus on software testing and reliability. Laurent utilized DML and Java, applying skills in algorithm implementation, data science, and explainable AI. This contribution addressed the need for transparent, data-driven feature attribution in SystemDS workflows.
October 2024 monthly summary for Apache SystemDS: Delivered a built-in ShapExplainer function to compute Shapley values for feature attribution in SystemDS. The release includes helper utilities for preparing masks, sampling background data, applying masks, and computing final Shapley values and the expected model output, along with unit and component tests to validate correctness. This work enhances model interpretability and enables data-driven feature attribution for end users. Commit: [SYSTEMDS-3669] Builtin for computation of shapley values (b651db516da31222018396bb996b3d825766c7da).
October 2024 monthly summary for Apache SystemDS: Delivered a built-in ShapExplainer function to compute Shapley values for feature attribution in SystemDS. The release includes helper utilities for preparing masks, sampling background data, applying masks, and computing final Shapley values and the expected model output, along with unit and component tests to validate correctness. This work enhances model interpretability and enables data-driven feature attribution for end users. Commit: [SYSTEMDS-3669] Builtin for computation of shapley values (b651db516da31222018396bb996b3d825766c7da).

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