arXiv Machine Learning By Wenjin Liu, Chenxi Wang, Jiapu Wang, Zhe Cui, Anh Tuan Luu, Haoran Luo

CataOPD: Catalytic On-Policy Distillation for Large Language Model Reasoning

Read the original on arXiv Machine Learning →

CataOPD introduces a new framework for improving large language model reasoning by combining reinforcement learning and on‑policy distillation. The method treats the teacher as a catalyst that expands the student’s reachability, using Self‑Rescue Routing to find correct trajectories through additional on‑policy sampling and Catalytic‑Guided Self‑Resolution to elicit verified student trajectories. Barrier‑Weighted Internalization further focuses updates on decisive tokens, leading to better performance on unseen problems and improved out‑of‑distribution generalization.

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