Query-level feature

{{Unreferenced|date=April 2026}} A '''query-level feature''' ('''QLF''') is a ranking feature utilized in a machine-learned ranking algorithm.

Example QLFs: * How many times has this query been run in the last month? * How many words are in the query? * What is the sum/average/min/max/median of the BM25F values for the query?

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Category:Machine learning algorithms