collaborators

12 papers

cs.IR2026

Reconstructing Content with Collaborative Attention for Universal Multimodal Representation Learning

Jiahan Chen, Da Li, Hengran Zhang +6

Multimodal embedding models, rooted in multimodal large language models (MLLMs), have yielded significant performance improvements across diverse tasks such as retrieval and classi…

cs.AI2026

DeepResearch-9K: A Challenging Benchmark Dataset of Deep-Research Agent

Tongzhou Wu, Yuhao Wang, Xinyu Ma +4

Deep-research agents are capable of executing multi-step web exploration, targeted retrieval, and sophisticated question answering. Despite their powerful capabilities, deep-resear…

cs.CL2025

Thinking Forward and Backward: Multi-Objective Reinforcement Learning for Retrieval-Augmented Reasoning

Wenda Wei, Yu-An Liu, Ruqing Zhang +6

Retrieval-augmented generation (RAG) has proven to be effective in mitigating hallucinations in large language models, yet its effectiveness remains limited in complex, multi-step…

cs.IR2025

DiffuGR: Generative Document Retrieval with Diffusion Language Models

Xinpeng Zhao, Zhaochun Ren, Yukun Zhao +9

Generative retrieval (GR) reframes document retrieval as an end-to-end task of generating sequential document identifiers (DocIDs). Existing GR methods predominantly rely on left-t…

cs.CL2025

LLM-Specific Utility for Retrieval-Augmented Generation

Hengran Zhang, Keping Bi, Jiafeng Guo +4

Retrieval-augmented generation (RAG) is typically optimized for topical relevance, yet its success ultimately depends on whether retrieved passages are useful for a large language…

cs.IR2025

ZeroGR: A Generalizable and Scalable Framework for Zero-Shot Generative Retrieval

Weiwei Sun, Keyi Kong, Xinyu Ma +5

Generative retrieval (GR) reformulates information retrieval (IR) by framing it as the generation of document identifiers (docids), thereby enabling end-to-end optimization and sea…

cs.CV2025

MathReal: We Keep It Real! A Real Scene Benchmark for Evaluating Math Reasoning in Multimodal Large Language Models

Jun Feng, Zixin Wang, Zhentao Zhang +5

Multimodal Large Language Models (MLLMs) have demonstrated remarkable capabilities in visual mathematical reasoning across various existing benchmarks. However, these benchmarks ar…

cs.IR2025

Curriculum Approximate Unlearning for Session-based Recommendation

Liu Yang, Zhaochun Ren, Ziqi Zhao +7

Approximate unlearning for session-based recommendation refers to eliminating the influence of specific training samples from the recommender without retraining of (sub-)models. Gr…

cs.CL2025

Iterative Self-Incentivization Empowers Large Language Models as Agentic Searchers

Zhengliang Shi, Lingyong Yan, Dawei Yin +3

Large language models (LLMs) have been widely integrated into information retrieval to advance traditional techniques. However, effectively enabling LLMs to seek accurate knowledge…

cs.IR2025

Direct Retrieval-augmented Optimization: Synergizing Knowledge Selection and Language Models

Zhengliang Shi, Lingyong Yan, Weiwei Sun +7

Retrieval-augmented generation (RAG) integrates large language models ( LLM s) with retrievers to access external knowledge, improving the factuality of LLM generation in knowledge…

cs.IR2025

Replication and Exploration of Generative Retrieval over Dynamic Corpora

Zhen Zhang, Xinyu Ma, Weiwei Sun +6

Generative retrieval (GR) has emerged as a promising paradigm in information retrieval (IR). However, most existing GR models are developed and evaluated using a static document co…

cs.IR2025

Generative Retrieval for Book search

Yubao Tang, Ruqing Zhang, Jiafeng Guo +5

In book search, relevant book information should be returned in response to a query. Books contain complex, multi-faceted information such as metadata, outlines, and main text, whe…