collaborators

6 papers

cs.CL2026

Learning from Self-Debate: Preparing Reasoning Models for Multi-Agent Debate

Chenxi Liu, Yanshuo Chen, Ruibo Chen +3

The reasoning abilities of large language models (LLMs) have been substantially improved by reinforcement learning with verifiable rewards (RLVR). At test time, collaborative reaso…

cs.CL2026

LLMs Improving LLMs: Agentic Discovery for Test-Time Scaling

Tong Zheng, Haolin Liu, Chengsong Huang +10

Test-time scaling (TTS) has become an effective approach for improving large language model performance by allocating additional computation during inference. However, existing TTS…

cs.CV2026

Multi-Crit: Benchmarking Multimodal Judges on Pluralistic Criteria-Following

Tianyi Xiong, Yi Ge, Ming Li +13

Large multimodal models (LMMs) are increasingly adopted as judges in multimodal evaluation systems due to their strong instruction following and consistency with human preferences.…

cs.CL2025

Explore Data Left Behind in Reinforcement Learning for Reasoning Language Models

Chenxi Liu, Junjie Liang, Yuqi Jia +4

Reinforcement Learning with Verifiable Rewards (RLVR) has emerged as an effective approach for improving the reasoning abilities of large language models (LLMs). The Group Relative…

cs.LG2025

Modality-Balancing Preference Optimization of Large Multimodal Models by Adversarial Negative Mining

Chenxi Liu, Tianyi Xiong, Yanshuo Chen +5

The task adaptation and alignment of Large Multimodal Models (LMMs) have been significantly advanced by instruction tuning and further strengthened by recent preference optimizatio…

cs.CR2025

Towards Copyright Protection for Knowledge Bases of Retrieval-augmented Language Models via Reasoning

Junfeng Guo, Yiming Li, Ruibo Chen +4

Large language models (LLMs) are increasingly integrated into real-world personalized applications through retrieval-augmented generation (RAG) mechanisms to supplement their respo…