collaborators

5 papers

cs.DB2026

SciEGQA: A Dataset for Scientific Evidence-Grounded Question Answering and Reasoning

Wenhan Yu, Zhaoxi Zhang, Wang Chen +5

Scientific documents contain complex multimodal structures, which makes evidence localization and scientific reasoning in Document Visual Question Answering particularly challengin…

cs.CL2026

CMRAG: Co-modality-based visual document retrieval and question answering

Wang Chen, Wenhan Yu, Guanqiang Qi +5

Retrieval-Augmented Generation (RAG) has become a core paradigm in document question answering tasks. However, existing methods have limitations when dealing with multimodal docume…

cs.AI2025

Benchmarking Multi-Step Legal Reasoning and Analyzing Chain-of-Thought Effects in Large Language Models

Wenhan Yu, Xinbo Lin, Lanxin Ni +2

Large language models (LLMs) have demonstrated strong reasoning abilities across specialized domains, motivating research into their application to legal reasoning. However, existi…

cs.CL2025

Unlocking Multi-View Insights in Knowledge-Dense Retrieval-Augmented Generation

Guanhua Chen, Wenhan Yu, Xiao Lu +3

While Retrieval-Augmented Generation (RAG) plays a crucial role in the application of Large Language Models (LLMs), existing retrieval methods in knowledge-dense domains like law a…

cs.CR2025

HSF: Defending against Jailbreak Attacks with Hidden State Filtering

Cheng Qian, Hainan Zhang, Lei Sha +1

With the growing deployment of LLMs in daily applications like chatbots and content generation, efforts to ensure outputs align with human values and avoid harmful content have int…