collaborators

8 papers

cs.AI2026

WebClipper: Efficient Evolution of Web Agents with Graph-based Trajectory Pruning

Junjie Wang, Zequn Xie, Dan Yang +9

Deep Research systems based on web agents have shown strong potential in solving complex information-seeking tasks, yet their search efficiency remains underexplored. We observe th…

cs.IR2026

GroupRank: A Groupwise Paradigm for Effective and Efficient Passage Reranking with LLMs

Meixiu Long, Duolin Sun, Dan Yang +12

Large Language Models (LLMs) have emerged as powerful tools for passage reranking in information retrieval, leveraging their superior reasoning capabilities to address the limitati…

cs.IR2026

DIVER: A Multi-Stage Approach for Reasoning-intensive Information Retrieval

Duolin Sun, Meixiu Long, Dan Yang +9

Retrieval-augmented generation has achieved strong performance on knowledge-intensive tasks where query-document relevance can be identified through direct lexical or semantic matc…

cs.CL2026

CTRL-RAG: Contrastive Likelihood Reward Based Reinforcement Learning for Context-Faithful RAG Models

Zhehao Tan, Yihan Jiao, Dan Yang +8

With the growing use of Retrieval-Augmented Generation (RAG), training large language models (LLMs) for context-sensitive reasoning and faithfulness is increasingly important. Exis…

cs.CL2025

HIRAG: Hierarchical-Thought Instruction-Tuning Retrieval-Augmented Generation

YiHan Jiao, ZheHao Tan, Dan Yang +5

Retrieval-augmented generation (RAG) has become a fundamental paradigm for addressing the challenges faced by large language models in handling real-time information and domain-spe…

cs.CL2025

HANRAG: Heuristic Accurate Noise-resistant Retrieval-Augmented Generation for Multi-hop Question Answering

Duolin Sun, Dan Yang, Yue Shen +7

The Retrieval-Augmented Generation (RAG) approach enhances question-answering systems and dialogue generation tasks by integrating information retrieval (IR) technologies with larg…