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

Fu, Zenghuang et al.
arXiv (All) · Papers
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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 sibl
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