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Cost 15x1 20x2 55 - PowerPoint PPT Presentation

????? ??? ????? F-Measure, Kappa, Costs, MetaCost

????? ??? ????? F-Measure, Kappa, Costs, MetaCost. ?"? ??? ???????. ??????. False Positives / Negatives. Confusion matrix 1. Confusion matrix 2. FN. Actual. Actual. FP. Predicted. Predicted. Precision (P) = 20 / 50 = 0.4 Recall (P) = 20 / 30 = 0.666 F-measure=2*.4*.666/1.0666=.5.

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Cost 15x1 20x2 55 - PowerPoint PPT Presentation

????? ??? ????? F-Measure, Kappa, Costs, MetaCost