【統計】Precision and Recall

Precision: tp / (tp+fp)

Recall: tp / (tp+fn)

where

tp = true positive

fp = false positive => a.k.a. type I error, false alarm

tn = true negative => a.k.a. type II error, miss

fn = false negative

Reference

WIKI: https://en.wikipedia.org/wiki/Precision_and_recall