Sizhe Tang

George Washington University

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Publication activitypapers/week, last 8 weeks

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Reasoning & Chain-of-Thought (1)RLHF & Preference Learning (1)Tool Use & Agents (1)

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Yu Li (1)Tian Lan (1)

Papers (1)

Apr 8, 2026

Yu Li +23w ago·also George Washington University

Reason in Chains, Learn in Trees: Self-Rectification and Grafting for Multi-turn Agent Policy Optimization

By distilling successful and failed reasoning paths into a "Cognitive Tree," T-STAR pinpoints and corrects critical errors in multi-turn reasoning, leading to significant performance gains.

Yu Li, Sizhe Tang, Tian Lan

Reasoning & Chain-of-Thought RLHF & Preference Learning Tool Use & Agents

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Sizhe Tang

Publication activitypapers/week, last 8 weeks

Research focus

Frequent co-authors

Papers (1)