arXiv AI By Yeonjun Choi, Seyeon Jeong, Jong Wook Kim, Beakcheol Jang

DuQUAD: A Dual-View Framework with Quality-Aware Evidence Pruning for Multi-Document Question Answering

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DuQUAD is a dual‑view framework for multi‑document question answering that addresses the "Lost in the Middle" problem by combining a Local Agent guided by a Structural Fusion Score with a Global Agent that reasons over the entire document set. It further prunes evidence using explicit quality scoring and sentence‑level refinement to reduce noise. The approach outperforms existing mitigation baselines, improving accuracy by an average of 3.0% and gold evidence recall by 9.4%, while cutting computational cost.

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