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F-measure


  • A measure that combines precision and recall is the harmonic mean of precision and recall, the traditional F-measure.
  • F-measure = 2 * ( ( Precision.Recall) / Precision + Recall) ) or = 2*TP / (2*TP) + FP + FN
F-measure Graph   

F-Measure

  • As we can clearly see, The J48 Decision Tree has highest value for F-measure which ensures that both Precision and Recall are reasonably high.
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