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Modal Accuracy And Optimisation

  • Are you predicting probabilities?
    • Do you need class labels?
      • Is the positive class more important?
        • Use Precision-Recall AUC
      • Are both classes important?
        • Use ROC AUC
    • Do you need probabilities?
      • Use Brier Score and Brier Skill Score
  • Are you predicting class labels?
    • Is the positive class more important?
      • Are False Negatives and False Positives Equally Important?
        • Use F1-Measure
      • Are False Negatives More Important?
        • Use F2-Measure
      • Are False Positives More Important?
        • Use F0.5-Measure
    • Are both classes important?
      • Do you have < 80%-90% Examples for the Majority Class? 
        • Use Accuracy

 

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