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Query-level feature

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This is an old revision of this page, as edited by Justin Ormont (talk | contribs) at 11:47, 13 February 2014 (Justin Ormont moved page "query level feature" to Query level feature: Remove quotes). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.


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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