F*: an interpretable transformation of the F-measure

David J. Hand*, Peter Christen*, Nishadi Kirielle

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    75 Citations (Scopus)


    The F-measure, also known as the F1-score, is widely used to assess the performance of classification algorithms. However, some researchers find it lacking in intuitive interpretation, questioning the appropriateness of combining two aspects of performance as conceptually distinct as precision and recall, and also questioning whether the harmonic mean is the best way to combine them. To ease this concern, we describe a simple transformation of the F-measure, which we call F (F-star), which has an immediate practical interpretation.

    Original languageEnglish
    Pages (from-to)451-456
    Number of pages6
    JournalMachine Learning
    Issue number3
    Publication statusPublished - Mar 2021


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