collaborators

7 papers

cs.AI2026

MEGRAG: Multi-Granular Evidence Graphs for Answer-Aware Multi-Hop RAG

Weidong Bao, Yingying Sun, Jun Yang +7

Multi-hop question answering is a fundamental challenge in retrieval-augmented generation (RAG), because deriving an answer requires integrating dispersed evidence. Iterative RAG (…

cs.CL2026

Finding What Matters: Anchoring Context Knowledge with Evolving Indices for Iterative Retrieval

Mingyan Wu, Zhenghao Liu, Xinze Li +7

Retrieval-Augmented Generation (RAG) has become a dominant paradigm for mitigating hallucinations in Large Language Models (LLMs) by incorporating external knowledge. However, exis…

cs.CL2025

Mitigating Judgment Preference Bias in Large Language Models through Group-Based Polling

Shuliang Liu, Zhipeng Xu, Zhenghao Liu +6

Large Language Models (LLMs) as automatic evaluators, commonly referred to as LLM-as-a-Judge, have also attracted growing attention. This approach plays a vital role in aligning LL…

cs.CY2025

Advancing Knowledge Tracing by Exploring Follow-up Performance Trends

Hengyu Liu, Yushuai Li, Minghe Yu +6

Intelligent Tutoring Systems (ITS), such as Massive Open Online Courses, offer new opportunities for human learning. At the core of such systems, knowledge tracing (KT) predicts st…

cs.AI2025

Automated Formalization via Conceptual Retrieval-Augmented LLMs

Wangyue Lu, Lun Du, Sirui Li +6

Interactive theorem provers (ITPs) require manual formalization, which is labor-intensive and demands expert knowledge. While automated formalization offers a potential solution, i…

cs.CL2025

Enhancing Long-Chain Reasoning Distillation through Error-Aware Self-Reflection

Zhuoyang Wu, Xinze Li, Zhenghao Liu +7

Large Language Models (LLMs) have exhibited strong reasoning capabilities and achieved remarkable performance in mathematical problem-solving tasks. Recently, distilling reasoning…

cs.CL2025

Mixture-of-Retrieval Experts for Reasoning-Guided Multimodal Knowledge Exploitation

Chunyi Peng, Zhipeng Xu, Zhenghao Liu +7

Multimodal Retrieval-Augmented Generation (MRAG) has shown promise in mitigating hallucinations in Multimodal Large Language Models (MLLMs) by incorporating external knowledge. How…