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Published byValentina Hardaway Modified over 2 years ago

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Performance measures Morten Nielsen, CBS, Department of Systems Biology, DTU

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Performance measures Meas Pred

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Pearsons’ correlation coefficient

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Performance measures Accuracy of prediction method Sort

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Evaluation of prediction accuracy TPFN AP AN TNFP

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Matthews correlation- Threshold of 0.5 False positive True positive True negative False negative

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Matthews correlation- Threshold of

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Performance measure – Roc curve False positive True positive True negative False negative

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Performance measure – Roc curve False positive True positive True negative False negative

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ThresholdTPFNTP/(TP+FN)FPTNFP/(FP+TN) > > > > > AUC = 0.5 AUC = 1.0 ROC curves

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AUC (area under the ROC curve)

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Summary MCC and PCC Random = 0.0 Perfect = 1.0 (or -1) ROC (AUC) Random = 0.5 Perfect = 1 (or 0)

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