Author

Xiang Li

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Jul 2026

Strategy, Not Payoffs: A Behavioural Embedding of Normal-Form Games

This work proposes a lightweight two-feature embedding that captures fundamental behavioural demands: the entropy of the Nash equilibrium and the sensitivity of optimal responses to an opponent's action, and shows that this embedding reliably predicts performance changes on held-out games.

Joshua Caiata, Sreepriya Pulyassary, Xiang Li et al. · arXiv.org · 0 citations

Preprint Jul 2026

ShortOPD: Recovering Pruned LLMs with Short-to-Long On-Policy Distillation

A short-to-long OPD schedule that detects teacher-confirmed repetitive suffixes, treats the surviving prefix as each rollout's effective length, and allocates future rollout budgets to the effective lengths the policy can currently use is proposed.

Qingyu Zhang, Qianhao Yuan, Hongyu Lin et al. · 5 citations