False Positive Rate (FPR)


The fraction (or Proportion) of Non-Relevant Documents that are incorrectly identified as Relevant by a search or review effort. Note that False Positive Rate + True Negative Rate = 100%, and that 100% – True Negative Rate = False Positive Rate. In Information Retrieval, also known as Fallout. 1


  1. Maura R. Grossman and Gordon V. Cormack, EDRM page & The Grossman-Cormack Glossary of Technology-Assisted Review, with Foreword by John M. Facciola, U.S. Magistrate Judge2013 Fed. Cts. L. Rev. 7 (January 2013).
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