DocHop-QA: Towards Multi-Hop Reasoning over Multimodal Document Collections 事件

DocHop-QA: Towards Multi-Hop Reasoning over Multimodal Document Collections arXiv:2508.15851v2 Announce Type: replace Abstract: Despite rapid progress in large language models (LLMs), current QA benchmarks still overlook the core challenge of real-world scientific information seeking: synthesizing multimodal evidence scattered across multiple documents and structural formats. Existing QA benchmarks remain narrow in scope, relying on unimodal text and short-span reasoning that fail to capture th