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Tengyang Xie

ICML 2025 Do We Need to Verify Step by Step? coauthor. Homepage identifies him as Assistant Professor of Computer Science at University of Wisconsin-Madison, previously Microsoft Research postdoc and UIUC PhD advised by Nan Jiang. OpenReview confirms UW-Madison assistant professor role and links homepage, Scholar and DBLP. X search result bio matches UW-Madison, former Microsoft Research and Illinois background.

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Jun 23, 2026

Do We Need to Verify Step by Step? Rethinking Process Supervision from a Theoretical Perspective

这篇从理论上挑战“过程监督天然比结果监督更强”的直觉:在标准 coverage / concentrability 假设下,只拿 trajectory level total reward 的 outcome supervision 可以通过 least squares reward imputation 转成 per step reward data,后续 offline reinforcement learning 的统计难度只比...

2502.10581-do-we-need-to-verify-step-by-step-process-supervision-theory Process SupervisionRL TheoryCredit Assignment