arXiv AI By Simon Ott, Yufan Chen, Ruiping Liu, Junwei Zheng, Jiale Wei, Di Wen, Kunyu Peng, Jiaming Zhang, Rainer Stiefelhagen

VL-DocIR: A Benchmark for Vision-Based Long Document Information Retrieval

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arXiv AI
1d ago

Loud and Clear: Making Visual Evidence Count in Multimodal Document RAG

The paper introduces Loud and Clear (LoC), a method that enhances multimodal document retrieval-augmented generation by fully utilizing visual token capacity and refining retrieved pages to highlight evidence. LoC combines higher-resolution pages with OCR of query-relevant regions, achieving significant accuracy gains over eight prior methods on multiple benchmarks. The study demonstrates that the way retrieved pages are presented to the generator is a critical bottleneck beyond retrieval itself.

By Eunchan Jo, Seounghyun Jang, Sangwoo Mo