Perplexity Trap: PLM-Based Retrievers Overrate Low Perplexity Documents

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Haoyu Wang, Sunhao Dai, Haiyuan Zhao, Liang Pang, Xiao Zhang, Gang Wang, Zhenhua Dong, Jun Xu, Ji-Rong Wen

Published: 2025, Last Modified: 25 Jan 2026ICLR 2025EveryoneRevisionsBibTeXCC BY-SA 4.0