collaborators

11 papers

cs.CL2026

FS-Researcher: Test-Time Scaling for Long-Horizon Research Tasks with File-System-Based Agents

Chiwei Zhu, Benfeng Xu, Mingxuan Du +4

Deep research is emerging as a representative long-horizon task for large language model (LLM) agents. However, long trajectories in deep research often exceed model context limits…

cs.CL2026

SearchAttack: Red-Teaming LLMs against Knowledge-to-Action Threats under Online Web Search

Yu Yan, Sheng Sun, Mingfeng Li +6

Recently, people have suffered from LLM hallucination and have become increasingly aware of the reliability gap of LLMs in open and knowledge-intensive tasks. As a result, they hav…

cs.CL2026

A-RAG: Scaling Agentic Retrieval-Augmented Generation via Hierarchical Retrieval Interfaces

Mingxuan Du, Benfeng Xu, Chiwei Zhu +4

Frontier language models have demonstrated strong reasoning and long-horizon tool-use capabilities. However, existing RAG systems fail to leverage these capabilities. They still re…

cs.CL2026

WildGraphBench: Benchmarking GraphRAG with Wild-Source Corpora

Pengyu Wang, Benfeng Xu, Licheng Zhang +4

Graph-based Retrieval-Augmented Generation (GraphRAG) organizes external knowledge as a hierarchical graph, enabling efficient retrieval and aggregation of scattered evidence acros…

cs.CL2026

Wiki Live Challenge: Challenging Deep Research Agents with Expert-Level Wikipedia Articles

Shaohan Wang, Benfeng Xu, Licheng Zhang +5

Deep Research Agents (DRAs) have demonstrated remarkable capabilities in autonomous information retrieval and report generation, showing great potential to assist humans in complex…

cs.CL2026

DeepResearch Bench II: Diagnosing Deep Research Agents via Rubrics from Expert Report

Ruizhe Li, Mingxuan Du, Benfeng Xu +3

Deep Research Systems (DRS) aim to help users search the web, synthesize information, and deliver comprehensive investigative reports. However, how to rigorously evaluate these sys…