Metrics - Tag - Xiaopeng Xuhttps://xu-xp.com/tags/metrics/Metrics - Tag - Xiaopeng XuHugo -- gohugo.ioenxiaopeng.xu@kaust.edu.sa (Xiaopeng Xu)xiaopeng.xu@kaust.edu.sa (Xiaopeng Xu)Fri, 14 May 2021 00:00:00 +0000Metrics 评估指标https://xu-xp.com/posts/ml_metrics/Fri, 14 May 2021 00:00:00 +0000xiaopeng.xu@kaust.edu.sa (Xiaopeng Xu)https://xu-xp.com/posts/ml_metrics/

准确性 Accuracy

Acc. = (TP + TN)/(TP + FP + TN + FN)

精确性 Precision or Positive Predictive Value (PPV)

PPV = TP / (TP + FP)

召回率/敏感性 Sensitivity, Recall, or True Positive Rate (TPR)

TPR = TP / (TP + FN)

特异性/选择性 Specificity, Selectivity, or True Negative Rate (TNR)

TNR = TN / (TN + FP)

Negative Predictive Value (NPV)

NPV = TN / (TN + FN)

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