Precision=TP/(TP+FP)
Recall=Pc=Sensitivity= TP/(TP+FN)
Pm=FN/(TP+FN)=1-Recall
Pf=FP/(FP+TN)=1-Specificity
Specificity=TN/(TN+FP)
Curves
Precision-recall curve (P vs. R)
Decision error tradeoff (DET) curve (Pf vs. Pm)
Receiver operating curve (ROC) curve (Pf vs. Pc)