Author

Yao Fan

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Preprint Aug 2026

Look Ahead Before You Distill: Future Trajectory Validation of Teacher Guidance for Agentic On-Policy Distillation

On-policy distillation (OPD) provides teacher supervision on states visited by the student, reducing the distribution gap between training and inference. However, in multi-turn agentic tasks, student deviations may accumulate over time, gradually moving the trajectory away from states where teacher guidance remains eff...

Chishui Chen, Yao Fan, Te Sun et al. · 0 citations

#natural language process... Preprint Aug 2026

Uncovering and Mitigating Aggregation-Induced Reward Hacking in Multi-Reward Reinforcement Learning

Adaptive Multi-Reward Projection is proposed, a lightweight online method that reallocates aggregation weights using three signals, relative shortfall, reward volatility, and recent progress, increasing pressure on lagging, unstable, or stagnant dimensions while relieving saturated ones.

Yu Yuan, Yao Fan, Lili Zhao et al. · 1 citation