Yuning Wu, Ke Wang, Devin Chen, Kai Wei

Hindsight-Anchored Policy Optimization: Turning Failure into Feedback in Sparse Reward Settings

arXiv:2603.11321v1 Announce Type: new Abstract: Reinforcement Learning with Verifiable Rewards (RLVR) has emerged as a promising paradigm for post-training reasoning models. However, group-based methods such …