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Scan or Index? large Evidence Coverage, Answer Quality, and Cost in Long-Document RAG

arXiv:2610.28957v1 Announce Type: new Abstract: Scanning every passage in a long document seems thorough, but does it preserve more useful evidence or produce better answers? We compare 11 retrieval configurations spanning lexical and dense search, hybrid reranking, and full-document scanning with…

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  1. 2026-10-22 04:00 · arXiv cs.CL
    Scan or Index? large Evidence Coverage, Answer Quality, and Cost in Long-Document RAG

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