TAA-k finds query-adaptive retrieval cutoffs by first using knee detection to isolate a candidate window around the relevance-to-noise transition, then applying EVT goodness-of-fit tests inside that window.
arXiv preprint arXiv:2504.03165 (2025)
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Tail-Aware Adaptive-k: Query-Adaptive Context Selection for Retrieval-Augmented Generation
TAA-k finds query-adaptive retrieval cutoffs by first using knee detection to isolate a candidate window around the relevance-to-noise transition, then applying EVT goodness-of-fit tests inside that window.