Document Haystacks: Vision-Language Reasoning Over Piles of 1000+ Documents

• URL: http://arxiv.org/abs/2411.16740v1
• Date: Sat, 23 Nov 2024 18:14:42 GMT
• Title: Document Haystacks: Vision-Language Reasoning Over Piles of 1000+ Documents
• Authors: Jun Chen, Dannong Xu, Junjie Fei, Chun-Mei Feng, Mohamed Elhoseiny,
• Abstract summary: Large multimodal models (LMMs) have achieved impressive progress in vision-language understanding. They face limitations in real-world applications requiring complex reasoning over a large number of images. We introduce two document haystack benchmarks, dubbed DocHaystack and InfoHaystack, to evaluate LMM performance on large-scale visual document retrieval and understanding.
• Score: 31.98555661903688
• License:
• Abstract: Large multimodal models (LMMs) have achieved impressive progress in vision-language understanding, yet they face limitations in real-world applications requiring complex reasoning over a large number of images. Existing benchmarks for multi-image question-answering are limited in scope, each question is paired with only up to 30 images, which does not fully capture the demands of large-scale retrieval tasks encountered in the real-world usages. To reduce these gaps, we introduce two document haystack benchmarks, dubbed DocHaystack and InfoHaystack, designed to evaluate LMM performance on large-scale visual document retrieval and understanding. Additionally, we propose V-RAG, a novel, vision-centric retrieval-augmented generation (RAG) framework that leverages a suite of multimodal vision encoders, each optimized for specific strengths, and a dedicated question-document relevance module. V-RAG sets a new standard, with a 9% and 11% improvement in Recall@1 on the challenging DocHaystack-1000 and InfoHaystack-1000 benchmarks, respectively, compared to the previous best baseline models. Additionally, integrating V-RAG with LMMs enables them to efficiently operate across thousands of images, yielding significant improvements on our DocHaystack and InfoHaystack benchmarks. Our code and datasets are available at https://github.com/Vision-CAIR/dochaystacks

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