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A large-scale empirical study of six zero-cost Query Performance Prediction metrics makes them a practical zero-cost replacement for magnitude thresholding in deployed RAG systems, making them a practical zero-cost replacement for magnitude thresholding in deployed RAG systems.
Query-difficulty-gated fusion reveals that not all reformulations are equal, leading to significant improvements in temporal retrieval accuracy.
EXCISE corrects exclusion inversion in retrieval systems, boosting exclusion success rates from 5.8% to an impressive 69.1%.