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Yao Zhu

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#machine learning Preprint Oct 2026

Rethinking Relative Policy Differences Transfer of On-Policy Distillation

On-policy distillation (OPD) trains a target policy on its own rollouts using token-level supervision from a stronger teacher, but typically relies on the teacher being substantially more capable than the target. Recent work relaxes this requirement by transferring the relative policy difference between an expert and a...

Rong Wu, Dao-Cheng Fu, Yu Yang et al. · 0 citations
Preprint Aug 2026

REOPD: Reliability-Adaptive Reward Extrapolation for On-Policy Distillation

REOPD combines a token-level compatibility weight with a batch-level adaptive budget, yielding a token-wise coefficient $\lambda_{b,t}=1+\gamma_b q_t$ that preserves teacher alignment while selectively extrapolating along reliable teacher-reference directions, demonstrating effective fine-grained reliability adaptation...

Yang Sun, Li-Chao Ma, Houyuan Qin et al. · 3 citations

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