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Zhi-Gang Hua

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#artificial intelligence Preprint Oct 2026

Co-Evolving Acting and Forecasting for Language Agents

Training language agents is bottlenecked by the high cost of long-horizon rollouts, yet standard agentic reinforcement learning (RL) learns only from a terminal scalar reward, leaving the supervision in intermediate steps largely unused. Prior work exploits this supervision through value targets that estimate per-step...

Hao-Fei Yu, Yi-Xin Chen, Yi-Ning Zhao et al. · 0 citations

CoFiRec: Coarse-to-Fine Tokenization for Generative Recommendation

CoFiRec is proposed, a novel generative recommendation framework that explicitly incorporates the Coarse-to-Fine nature of item semantics into the tokenization process, and it is proved that structured tokenization leads to lower dissimilarity between generated and ground truth items, supporting its effectiveness in ge...

Tianxin Wei, Xuying Ning, Xu-Xing Chen et al. · 18 citations · ⚡1

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