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Zhenghong Lin

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Book Open access Aug 2026

Multi-Modal Hierarchical Retrieval-Augmented Generation for Document Question Answering

The Document Question Answering (DocQA) task necessitates the synergistic interpretation of visual and textual information embedded within documents. Although Retrieval-Augmented Generation (RAG) has enhanced the capabilities of Large Vision-Language Models (LVLMs), existing approaches still encounter significant bottl...

Jia-Yuan Wang, Jie Lian, Fu Zhao et al. · 0 citations
Book Open access Aug 2026

Multi-Modal Hierarchical Retrieval-Augmented Generation for Document Question Answering

This work introduces MMHRAG, a novel Multi-Modal Hierarchical Retrieval-Augmented Generation framework that achieves cross-modal interaction on DocQA for the first time, and designs a Summarizing Agent to resolve logical conflicts, information redundancy, and granularity discrepancies among retrieved cross-modal eviden...

Jiayuan Wang, Jie Lian, Fu Zhao et al. · 0 citations

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