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Pei-Ze Ding

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#small language model Preprint Oct 2026

Collective Dynamics of Self-Reinforcement: How Cross-Task Coupling Drives Policy Collapse in Unsupervised RLVR

Label-free reinforcement learning with verifiable rewards (RLVR) rewards a language model for agreeing with its own majority vote. It improves reasoning at first but eventually collapses: the self-assessed reward goes to one while accuracy falls, often until the model gives the same answer to every problem. The collaps...

Pei-Ze Ding · 0 citations
Preprint Aug 2026

ShuttleArena: Interpretable Self-Play in Physics-Based Badminton

Badminton is a compact but challenging domain for game AI: a player must choose a physically feasible shuttle trajectory, anticipate the opponent's interception, and recover to a court position whose value depends on the opponent's next response. The central challenge is that shot selection and recovery are not separab...

Pei-Ze Ding · 0 citations

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