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Houfeng Wang

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#artificial intelligence Preprint Sep 2026

On-Policy Visual Evidence Distillation

Reflection on Visual Evidence (ReVuE), an on-policy distillation method for visual agents that translates trajectory-level evidence diagnosis into targeted token-level supervision, guiding students to improve their visual evidence acquisition and reasoning.

Shaohang Wei, Feifan Song, Guangyue Peng et al. · 0 citations
#machine learning Preprint Jul 2026

Verifier-Induced Support Reshaping in On-Policy Optimization

It is shown that on-policy reinforcement learning with verifiable rewards (RLVR) can improve the current objective while making successful behaviors for later objectives too rare to sample and reinforce, and effective rewardable support is defined as successful trajectories reachable within a fixed rollout budget.

Shaohang Wei, Z.Y. Su, Feifan Song et al. · 0 citations

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