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omoindrot / tensorflow-triplet-loss

Implementation of triplet loss in TensorFlow
https://omoindrot.github.io/triplet-loss
MIT License
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calculate FRR and FAR #40

Open mahsa631 opened 5 years ago

mahsa631 commented 5 years ago

Hi i use this for face recognition and i need calculate False rejection rate and false accept rate ,can you help me?

ItsSantoshBehera commented 4 years ago

FP: False positive, FN: False Negative, FN: True Negative and TP: True Positive FAR is calculated as a fraction of negative scores exceeding your threshold. FAR = imposter scores exceeding threshold/all imposter scores. imposter scores exceeding threshold = FP all imposter scores = FP+TN FAR = FPR = FP/(FP+TN) FRR is calculated as a fraction of positive scores falling below your threshold. FRR = genuines scores exceeding threshold/all genuine scores genuines scores exceeding threshold = FN all genuine scores = TP+FN FRR = FNR = FN/(TP+FN)