activity
20242026
collaborators

14 papers

cs.CL2026

ORBIT: Scalable and Verifiable Data Generation for Search Agents on a Tight Budget

Nandan Thakur, Zijian Chen, Xueguang Ma +1

Search agents, which integrate language models (LMs) with web search, are becoming crucial for answering complex user queries. Constructing training datasets for deep research task…

cs.CL2026

AgentIR: Reasoning-Aware Retrieval for Deep Research Agents

Zijian Chen, Xueguang Ma, Shengyao Zhuang +3

Deep Research agents are rapidly emerging as primary consumers of modern retrieval systems. Unlike human users who issue and refine queries without documenting their intermediate t…

cs.IR2025

Hard Negatives, Hard Lessons: Revisiting Training Data Quality for Robust Information Retrieval with LLMs

Nandan Thakur, Crystina Zhang, Xueguang Ma +1

Training robust retrieval and reranker models typically relies on large-scale retrieval datasets; for example, the BGE collection contains 1.6 million query-passage pairs sourced f…

cs.CL2025

BrowseComp-Plus: A More Fair and Transparent Evaluation Benchmark of Deep-Research Agent

Zijian Chen, Xueguang Ma, Shengyao Zhuang +17

Deep-Research agents, which integrate large language models (LLMs) with search tools, have shown success in improving the effectiveness of handling complex queries that require ite…

cs.IR2025

MAGMaR Shared Task System Description: Video Retrieval with OmniEmbed

Jiaqi Samantha Zhan, Crystina Zhang, Shengyao Zhuang +2

Effective video retrieval remains challenging due to the complexity of integrating visual, auditory, and textual modalities. In this paper, we explore unified retrieval methods usi…

cs.CL2025

General-Reasoner: Advancing LLM Reasoning Across All Domains

Xueguang Ma, Qian Liu, Dongfu Jiang +3

Reinforcement learning (RL) has recently demonstrated strong potential in enhancing the reasoning capabilities of large language models (LLMs). Particularly, the "Zero" reinforceme…