Query-level_feature

Query-level feature

Query-level feature

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A query-level feature or 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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