Wei Chen PhD Student Department of Computer Science and Engineering The Hong Kong University of Science and Technology Email: csewei.chen AT connect DOT ust DOT hk

Biography

I am a PhD student in the Department of Computer Science and Engineering at The Hong Kong University of Science and Technology, where I am advised by Prof. Long Chen in the LONG Group. Prior to this, I obtained my bachelor's degree from the School of Computer Science at Wuhan University, under the supervision of Prof. Yu Wu.

Research Interests

My research interests lie in multi-modal content understanding and generation, which include:

• Vision-language alignment in Multi-modal Large Language Models (MLLM)
• Reinforcement Learning from Human Feedback (RLHF) in MLLM
• Developing benchmarks for comprehensively evaluating MLLM capabilities

Publications

Relation-R1: Cognitive Chain-of-Thought Guided Reinforcement Learning for Unified Relational Comprehension

Lin Li*, Wei Chen*, Jiahui Li, Kwang-Ting Cheng, Long Chen

arXiv:2504.14642

[paper] [code]

Decoupling Contrastive Decoding: Robust Hallucination Mitigation in Multimodal Large Language Models

Wei Chen, Xin Yan, Bin Wen, Fan Yang, Tingting Gao, Di Zhang, Long Chen

arXiv:2504.08809

[paper]

CoMM: A Coherent Interleaved Image-Text Dataset for Multimodal Understanding and Generation

Wei Chen*, Lin Li*, Yongqi Yang*, Bin Wen, Fan Yang, Tingting Gao, Yu Wu, Long Chen

Computer Vision and Pattern Recognition (CVPR), 2025

[paper] [code]

An Efficient and Effective Transformer Decoder-Based Framework for Multi-Task Visual Grounding

Wei Chen, Long Chen, Yu Wu

European Conference on Computer Vision (ECCV), 2024

[paper] [code]