Computer scienceData scienceMachine learningClassificationClassification metrics

Accuracy and confusion matrix

The accurate accuracy

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\frac{FP+FN}{TP+TN+FP+FN}

\frac{\text{correct answers}}{\text{total number of answers}}

\frac{TP+TN}{TP+TN+FP+FN}

\frac{\text{total number of answers}}{\text{correct answers}}

\frac{TP+FN}{TP+TN+FP+FN}

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