Author

Juba Ziani

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#machine learning Preprint Oct 2026

Linear Last-Iterate Convergence Rates for Optimistic Learning in Harmonic Games

We prove that the last iterate of Optimistic Follow-The-Regularized-Leader (OFTRL) converges at a linear rate to a Nash equilibrium in multiplayer harmonic games. Our result holds under a mild game-regularity condition and for a large family of regularizers, including entropy, Tsallis, and log-barrier. Our analysis is...

John Lazarsfeld, Anas Barakat, Jacob D. Abernethy et al. · 0 citations

Jul 2026

Effort Matters in Score-Based Admissions: How Retaking and Aggregation Shape Test Scores

Observed standardized test scores are the result of an endogenous process: students strategically allocate effort across multiple retake attempts to improve their outcomes. Because students differ in their ability to make these investments, the interaction between applicant strategy and institutional scoring rules---su...

Christine Ling, Diptangshu Sen, Juba Ziani · arXiv.org · 0 citations