Metric

Formulation

Accuracy

T P + T N T P + T N + F P + F N

FP-rate

F P F P + T N

Precision

T P T P + F P

Recall / TP-rate

T P T P + F N

F-measure

2 Pr e c i s i o n Re c a l l Pr e c i s i o n + Re c a l l