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Yan-Zhao Zheng

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#machine learning Preprint Oct 2026

State-OPD: State-Grounded On-Policy Distillation for Multi-Turn Agents

On-Policy Distillation (OPD) has emerged as a powerful paradigm for transferring reasoning capabilities from frontier models to smaller models, while extending its success to multi-turn agentic environments remains challenging. We study agentic OPD through interaction states, distinguishing the objective task and execu...

Zhen-Tao Zhang, Yan-Zhao Zheng, Yan-Lin Liu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

MOPD-Router: Rethinking Teacher Routing in Multi-Teacher On-Policy Distillation

This work proposes ExpertAlign, a framework that routes supervision over the full teacher pool at each token, without domain labels or training a separate routing model, and demonstrates token-level routing can exploit cross-domain complementary supervision, and reduce exclusive reliance on prompt-level domain assignme...

Tian-Ze Xu, Yan-Zhao Zheng, Zhen-Tao Zhang et al. · 0 citations
#machine learning Preprint Aug 2026

PAC: Progress-Augmented Advantage Curriculum for Multi-Task Reinforcement Learning of LLMs

PAC, a Progress-Augmented Advantage Curriculum for multi-task RL of LLMs that combines two task-level signals: advantage-derived learnability, which measures the magnitude of the policy update a task can induce, and recent reward gains, which show whether those updates have improved task performance.

Yuan-Qiang Yu, Yan-Zhao Zheng, Zhen-Tao Zhang et al. · 0 citations

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