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Joseph Paillard

PROFILE

Joseph Paillard

Over the past year, contributed to the lionelkusch/hidimstat repository by building and refining advanced statistical modeling and feature importance tools for high-dimensional data analysis. Work focused on enhancing model interpretability, reproducibility, and developer experience through robust API design, performance optimization, and comprehensive documentation. Leveraged Python, NumPy, and scikit-learn to implement methods such as Conditional Permutation Importance, LOCO, and cross-validation for perturbation-based feature selection, while improving visualization workflows with pandas and seaborn. Addressed reliability through rigorous testing, CI/CD integration, and licensing updates, and expanded educational resources to support onboarding and adoption. Emphasized maintainable, well-documented, and production-ready code throughout.

Overall Statistics

Feature vs Bugs

79%Features

Repository Contributions

58Total
Bugs
7
Commits
58
Features
26
Lines of code
16,220
Activity Months12

Work History

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for the hidimstat project focused on documentation and test reliability improvements for the Multivariate Simulation Module. No critical defects fixed this period; primary work centered on reducing CI flakiness and clarifying parameter usage. These changes enhance onboarding, usage accuracy, and release confidence.

January 2026

1 Commits

Jan 1, 2026

January 2026 monthly performance summary for the lionelkusch/hidimstat project. Focused on stabilizing the minimal-version test workflow to meet CI time constraints while preserving test quality. Implemented a timeout increase and targeted parameter tuning to improve reliability, and refined statistical decision rules to reduce false signals within the allowed time window. These changes strengthen CI feedback loops and overall test robustness, supporting a more dependable release process and clearer performance signals for developers.

December 2025

7 Commits • 3 Features

Dec 1, 2025

December 2025 highlights three strategic streams for hidimstat: statistical rigor, API usability, and knowledge dissemination. Key features delivered include FWER-based feature selection with FDP power optimization, API signature simplifications by removing eps across classes, and expanded educational content with Desparsified Lasso/Model-X Knockoffs docs and a diabetes DL example. These changes improved numerical stability, reduced compute time, and lowered the barrier to adoption for users and contributors.

November 2025

6 Commits • 5 Features

Nov 1, 2025

November 2025: Delivered major model inference enhancements and robust evaluation workflows in hidimstat, including d0CRT logit, PDP, cross-validation for perturbation-based feature importance methods, and CluDL/EnCluDL. API clarity improvements and a critical data-simulation fix contributed to overall reliability and adoption. Comprehensive tests and documentation accompany all features to accelerate usage in production settings.

October 2025

5 Commits • 2 Features

Oct 1, 2025

October 2025 monthly summary for lionelkusch/hidimstat. Focused on delivering a practical LOCO feature demonstration, documentation hardening, and test stability improvements. Delivered a LOCO Feature Importance Demonstration with a minimal example and visualization; improved documentation with glossary, notations, and cleaned bibliography; stabilized tests for desparsified Lasso and knockoffs by adjusting simulations and CI expectations. These efforts improve model interpretability, onboarding, and reliability of the test suite.

September 2025

6 Commits • 3 Features

Sep 1, 2025

September 2025: Focused on increasing flexibility, reproducibility, and developer experience in hidimstat. Implemented direct Scikit-learn estimator support in D0CRT, refined examples with diabetes refactor and added a new CFI demo on wine data, and laid groundwork for comprehensive user/developer guides and RNG management.

August 2025

1 Commits • 1 Features

Aug 1, 2025

Monthly summary for 2025-08: Delivered a key feature to enhance model comparison visualizations in hidimstat, focusing on performance and maintainability. Refactored the plotting workflow to improve readability and speed, reorganized data handling via pandas and seaborn, and simplified results aggregation as a list of dictionaries. Updated the model interpretation narrative to emphasize the Random Forest model's superiority over Lasso. Overall impact: faster, clearer visualizations enabling quicker data-driven decisions. Technologies demonstrated include Python, pandas, seaborn, and refactoring practices that improve code maintainability and scalability.

April 2025

10 Commits • 3 Features

Apr 1, 2025

April 2025 monthly summary for lionelkusch/hidimstat (2025-04). Focused on robustness, API clarity, documentation quality, and expanded educational demonstrations for feature importance methods. Key outcomes include fixes that improve reproducibility and data handling, clearer API semantics, richer documentation, and a broader set of educational examples that demonstrate CPI/LOCO/PFI capabilities and caveats. Delivered: - Robust random state and imputation handling in CPI and Permutation Importance to ensure predictable results. - Group IDs data structure fix: switched from NumPy array to Python list to prevent data handling issues. - API clarity: renamed public method score to importance across CPI, LOCO, and PFI; updated examples and tests. - Documentation and citation management improvements: reformatting, deduplication, and corrections to ensure accurate citations. - Expanded educational demonstrations: added and updated examples on CPI pitfalls, conditional vs marginal importance, LOCO with non-linear models, Iris classification, Model-X Knockoffs; removed outdated example. Impact: - More reliable analytics and reproducibility, easier adoption due to clearer API semantics, and higher-quality educational material reducing support overhead. - Strengthened technical capabilities in RNG handling, data-structure decisions, and documentation tooling. Technologies/skills demonstrated: - Python, RNG control, array vs list data structures, API design and semantic clarity, documentation tooling, tests, and dataset-driven educational content (model-agnostic feature selection, non-linear LOCO, Model-X Knockoffs).

March 2025

4 Commits • 3 Features

Mar 1, 2025

March 2025 monthly work summary for lionelkusch/hidimstat focusing on delivering enhanced model interpretation tools, improving code quality, and stabilizing documentation. Overall, the month delivered substantial CPI capability upgrades, improved maintainability, and stronger documentation reliability, enabling faster adoption and fewer integration issues for downstream users.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025: Licensing governance update completed for the hidimstat repository, migrating from BSD 2-Clause to BSD 3-Clause and adding an explicit clause about the use of the copyright holder's name. This change clarifies licensing terms for users and contributors, reduces legal ambiguity, and supports downstream adoption and compliance. No code feature work or bug fixes were released this month; the focus was on policy updates and licensing compliance.

January 2025

2 Commits • 2 Features

Jan 1, 2025

January 2025 monthly summary for repo lionelkusch/hidimstat focusing on dependency reliability and ML example enhancements. Delivered two core features with explicit dependency management and flexible loss-function support, improving onboarding, reproducibility, and experimentation capabilities. No major bugs fixed this period; emphasis on documentation and configuration for smoother installations and hands-on experimentation.

November 2024

13 Commits • 2 Features

Nov 1, 2024

November 2024: Delivered significant performance, robustness, and documentation improvements for lionelkusch/hidimstat. Optimized permutation-based predictions for faster CPI.predict and PermutationImportance.predict, expanded Variable Importance plotting docs and examples, and strengthened CPI/LOCO workflows with runtime checks and broader test coverage, improving reliability and developer experience across production analyses.

Activity

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Quality Metrics

Correctness90.4%
Maintainability89.4%
Architecture87.8%
Performance82.4%
AI Usage22.0%

Skills & Technologies

Programming Languages

BibTeXJupyter NotebookMarkdownMatplotlibNumPyNumpyPythonRSTSQLSciPy

Technical Skills

API DesignAPI DevelopmentBibTeX ManagementBug FixingCI/CDCode CleanupCode FormattingCode MaintenanceCode RefactoringCode RenamingConditional Permutation ImportanceData AnalysisData ScienceData StructuresData Visualization

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

lionelkusch/hidimstat

Nov 2024 Feb 2026
12 Months active

Languages Used

NumpyPythonScikit-learnTorchMarkdownTextrstBibTeX

Technical Skills

API DesignCode MaintenanceData ScienceData VisualizationDeep Learning FrameworksDocumentation