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Zihan Wang

SIGIR 2026×3ICLR 2026检索与知识多模态评测与基准社会与人本对齐与偏好
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0 一作 · 4 篇 · SIGIR 2026 / ICLR 2026

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2026 顶会论文

4
作者位次 #3/6SIGIR 2026Oral· Information Retrieval (Full)

Factorized Latent Reasoning for LLM-based Recommendation

Tianqi Gao · Chengkai Huang · Zihan Wang · Cao Liu · Ke Zeng · Lina Yao

摘要

Large language models (LLMs) have recently been adopted for recommendation by framing user preference modeling as a language generation problem. However, existing latent reasoning approaches typically represent user intent with a single latent vector, which struggles to capture the inherently mul...

对齐与偏好可解释性强化学习与后训练OpenReview
作者位次 #2/7SIGIR 2026Oral· Information Retrieval (Full)

Purifying Multimodal Retrieval: Fragment-Level Evidence Selection for RAG

Xihang Wang · Zihan Wang · Chengkai Huang · Cao Liu · Ke Zeng · Quan Z. Sheng · Lina Yao

摘要

Multimodal Retrieval-Augmented Generation (MRAG) is widely adopted for Multimodal Large Language Models (MLLMs) with external evidence to reduce hallucinations. Despite its success, most existing MRAG frameworks treat retrieved evidence as indivisible documents, implicitly assuming that all conte...

检索与知识多模态评测与基准OpenReview
作者位次 #2/5SIGIR 2026Poster· Information Retrieval (Short)

MEG-RAG: Quantifying Multi-modal Evidence Grounding for Evidence Selection in RAG

Xihang Wang · Zihan Wang · Chengkai Huang · Quan Z. Sheng · Lina Yao

摘要

Multimodal Retrieval-Augmented Generation (MRAG) addresses key limitations of Multimodal Large Language Models (MLLMs), such as hallucination and outdated knowledge. However, current MRAG systems struggle to distinguish whether retrieved multimodal data truly supports the semantic core of an answ...

检索与知识多模态评测与基准OpenReview

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