准确率(accuracy) = 预测对的/所有 = T P + T N T P + F N + F P + T N frac{TP+TN}{TP+FN+FP+TN} % TP+FN+FP+TNTP+TN
精确率(precision) = T P T P + F P frac{TP}{TP+FP} % TP+FPTP
召回率(recall) = T P T P + F N frac{TP}{TP+FN} TP+FNTP
其余
见链接：
https://www.zhihu.com/question/30643044