arXiv Computation and Language By Ke Wan, Yifan Wang, Liheng Lai, Chen Chen

MORSE: Multi-Context Ordering via Reverse Scoring for Evidence-Preserving Compression

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The paper introduces MORSE, a method that orders contexts in a way that preserves evidence during compression. By applying a reverse query‑evidence principle to both individual contexts and compressed outputs, MORSE constructs an evidence‑first anchor and guides permutation selection to avoid information preemption. Experiments on multi‑hop QA benchmarks show that MORSE consistently outperforms static reverse ordering and random search, improving evidence retention and downstream QA performance.

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