A Complete Expressiveness Hierarchy for Subgraph GNNs via Subgraph Weisfeiler-Lehman Tests. - Bohang Zhang; Guhao Feng; Yiheng Du; Di He 001; Liwei Wang 001 (ICML, 2023)

Towards Revealing the Mystery behind Chain of Thought: A Theoretical Perspective. - Guhao Feng; Bohang Zhang; Yuntian Gu; Haotian Ye; Di He 001; Liwei Wang 001 (NeurIPS, 2023)

Rethinking Model-based, Policy-based, and Value-based Reinforcement Learning via the Lens of Representation Complexity. - Guhao Feng; Han Zhong (CoRR, 2023)

Two Stones Hit One Bird: Bilevel Positional Encoding for Better Length Extrapolation. - Zhenyu He 012; Guhao Feng; Shengjie Luo; Kai Yang; Liwei Wang 001; Jingjing Xu; Zhi Zhang 005; Hongxia Yang; Di He 001 (ICML, 2024)

Do Efficient Transformers Really Save Computation? - Kai Yang; Jan Ackermann; Zhenyu He 012; Guhao Feng; Bohang Zhang; Yunzhen Feng; Qiwei Ye; Di He 001; Liwei Wang 001 (ICML, 2024)

Rethinking Model-based, Policy-based, and Value-based Reinforcement Learning via the Lens of Representation Complexity. - Guhao Feng; Han Zhong 001 (NeurIPS, 2024)

DPO Meets PPO: Reinforced Token Optimization for RLHF. - Han Zhong 001; Guhao Feng; Wei Xiong 015; Li Zhao 007; Di He 001; Jiang Bian 002; Liwei Wang 001 (CoRR, 2024)

How Numerical Precision Affects Mathematical Reasoning Capabilities of LLMs. - Guhao Feng; Kai Yang; Yuntian Gu; Xinyue Ai; Shengjie Luo; Jiacheng Sun; Di He 001; Zhenguo Li; Liwei Wang 001 (CoRR, 2024)

How Numerical Precision Affects Arithmetical Reasoning Capabilities of LLMs. - Guhao Feng; Kai Yang; Yuntian Gu; Xinyue Ai; Shengjie Luo; Jiacheng Sun; Di He 001; Zhenguo Li; Liwei Wang 001 (ACL (Findings), 2025)

Theoretical Benefit and Limitation of Diffusion Language Model. - Guhao Feng; Yihan Geng; Jian Guan; Wei Wu; Liwei Wang 001; Di He 001 (CoRR, 2025)