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Guannan He

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#artificial intelligence Preprint Sep 2026

UniOPSD: Unifying Outcome and Hindsight Feedback for Agentic Reinforcement Learning

Reinforcement learning has become an effective approach to training language model agents, but sparse and delayed outcome rewards provide limited guidance for credit assignment across long interaction sequences. Recent work on on-policy self-distillation (OPSD) offers complementary supervision by evaluating a policy's...

Zeng-Huang Fu, Zhao-Yang Li, Qiu-Yuan Ai et al. · 0 citations
#artificial intelligence Preprint Sep 2026

SIPO: Selective-Inference Policy Optimization for Tree-Structured Agentic RL

Tree-structured reinforcement learning trains search agents by comparing alternative continuations and propagating terminal rewards to intermediate decisions. Adaptive expansion, however, creates a statistical asymmetry: an incumbent is selected using its own generation statistic, whereas fresh siblings are sampled aft...

Zeng-Huang Fu, Ning Chen, Ming-Da Jia et al. · 0 citations
#reinforcement learning Preprint Aug 2026

CoEvoKG: Co-Evolving Knowledge Graphs with Self-Evolving Search Agents

CoEvoKG is introduced, a framework that turns a knowledge graph into both a source of verifiable training tasks and a persistent evidence memory for agent evolution, closing the loop between model self evolution and knowledge accumulation.

Zhaoyang Li, Zenghuang Fu, Qiuyuan Ai et al. · 0 citations

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