collaborators

12 papers

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.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.IR2026

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.IR2026

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.IR2026

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.CL2026

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…