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TreeHCA: Hindsight-Guided Exploration and Credit Assignment for Multi-Turn LLM Agents

arXiv cs.LG ↗ · 2026-10-12 Cached

TreeHCA 提出将后见比率引导的探索与后见信用分配耦合,通过参考答案似然变化重建中间历史并生成替代续写,形成推理与工具交互树,并用归一化树回传将终局结果传播为回合级优势,在七个问答基准和三个 Qwen 主干上超越所有基线。

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