一圖一公式搞懂：準確率(accuracy) vs 精確率(precision) vs 召回率(recall)

準確率(accuracy) = 預測對的/所有 = $\frac{TP+TN}{TP+FN+FP+TN}$
精確率(precision) = $\frac{TP}{TP+FP}$
召回率(recall) = $\frac{TP}{TP+FN}$