Yusik Kim is a researcher and machine learning engineer based in France with four years of industry experience and a deep academic foundation including a Ph.D. in Operations Research from UC Berkeley. Currently at IBM, he blends research rigor with practical ML engineering from prior roles at Amazon, Spotify, and SAP, bringing experience across production systems and data science. He contributes to trusted AI tooling—most notably implementing and optimizing the RIPPER rule induction algorithm within the widely used AIX360 explainability framework—demonstrating a focus on interpretable ML. His background in mathematics and operations research informs a methodical approach to model interpretability and algorithmic refinement, making him as comfortable prototyping research ideas as shipping robust explainability components.
3 years of coding experience
11 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Operations Research, Doctor of Philosophy (Ph.D.), Operations Research at University of California, Berkeley
Bachelor’s Degree, Mathematics and Statistics, Bachelor’s Degree, Mathematics and Statistics at Seoul National University
Interpretability and explainability of data and machine learning models
Role in this project:
ML Engineer
Contributions:15 commits, 4 PRs, 3 comments in 4 months
Contributions summary:Yusik primarily focused on implementing and refining the RIPPER (Repeated Incremental Pruning to Produce Error Reduction) rule induction algorithm within the AIX360 framework. This involved initial implementation, integration of the TRXF ruleset exchange format, and subsequent cleanup and optimization efforts. The user's contributions included developing the core RipperExplainer class, modifying the algorithm's internal workings, and updating the demo notebook to showcase the algorithm.
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