collaborators

6 papers

cs.CL2026

Unified Data Selection for LLM Reasoning

Xiaoyuan Li, Yubo Ma, Chengpeng Li +6

Effectively training Large Language Models (LLMs) for complex, long-CoT reasoning is often bottlenecked by the need for massive high-quality reasoning data. Existing methods are ei…

cs.CL2026

CoLD: Counterfactually-Guided Length Debiasing for Process Reward Models in Mathematical Reasoning

Congmin Zheng, Jiachen Zhu, Jianghao Lin +6

Process Reward Models (PRMs) play a central role in evaluating and guiding multi-step reasoning in large language models (LLMs), especially for mathematical problem solving. Howeve…

cs.CL2025

Teaching Language Models to Reason with Tools

Chengpeng Li, Zhengyang Tang, Ziniu Li +8

Large reasoning models (LRMs) like OpenAI-o1 have shown impressive capabilities in natural language reasoning. However, these models frequently demonstrate inefficiencies or inaccu…

cs.CL2025

CALM Before the STORM: Unlocking Native Reasoning for Optimization Modeling

Zhengyang Tang, Zihan Ye, Chenyu Huang +9

Large Reasoning Models (LRMs) have demonstrated strong capabilities in complex multi-step reasoning, opening new opportunities for automating optimization modeling. However, existi…

cs.CL2025

CoRT: Code-integrated Reasoning within Thinking

Chengpeng Li, Zhengyang Tang, Ziniu Li +8

Large Reasoning Models (LRMs) like o1 and DeepSeek-R1 have shown remarkable progress in natural language reasoning with long chain-of-thought (CoT), yet they remain inefficient or…

cs.CL2025

START: Self-taught Reasoner with Tools

Chengpeng Li, Mingfeng Xue, Zhenru Zhang +7

Large reasoning models (LRMs) like OpenAI-o1 and DeepSeek-R1 have demonstrated remarkable capabilities in complex reasoning tasks through the utilization of long Chain-of-thought (…