collaborators

5 papers

cs.CL2025

LLM2: Let Large Language Models Harness System 2 Reasoning

Cheng Yang, Chufan Shi, Siheng Li +3

Large language models (LLMs) have exhibited impressive capabilities across a myriad of tasks, yet they occasionally yield undesirable outputs. We posit that these limitations are r…

cs.SE2025

ChartMimic: Evaluating LMM's Cross-Modal Reasoning Capability via Chart-to-Code Generation

Cheng Yang, Chufan Shi, Yaxin Liu +11

We introduce a new benchmark, ChartMimic, aimed at assessing the visually-grounded code generation capabilities of large multimodal models (LMMs). ChartMimic utilizes information-i…

cs.CL2025

Critical Tokens Matter: Token-Level Contrastive Estimation Enhances LLM's Reasoning Capability

Zicheng Lin, Tian Liang, Jiahao Xu +7

Mathematical reasoning tasks pose significant challenges for large language models (LLMs) because they require precise logical deduction and sequence analysis. In this work, we int…

cs.CL2024

Large Language Models Can Self-Improve in Long-context Reasoning

Siheng Li, Cheng Yang, Zesen Cheng +4

Large language models (LLMs) have achieved substantial progress in processing long contexts but still struggle with long-context reasoning. Existing approaches typically involve fi…

cs.CL2024

Unchosen Experts Can Contribute Too: Unleashing MoE Models' Power by Self-Contrast

Chufan Shi, Cheng Yang, Xinyu Zhu +6

Mixture-of-Experts (MoE) has emerged as a prominent architecture for scaling model size while maintaining computational efficiency. In MoE, each token in the input sequence activat…