LAPO uses leave-one-turn attribution for multi-turn search reasoning as self-generated process supervision.
Read the original at arxiv.org→arXiv:2607.13501v1 Announce Type: new Abstract: Reinforcement learning for multi-turn search reasoning typically relies on terminal outcome rewards, which cannot distinguish useful, redundant, and harmful...
Original headline: "LAPO: Leave-One-Turn Attribution for Self-Generated Process Rewards in Multi-Turn Search Reasoning"