Face_recognition: how to measure confidence in this lib

[Asma-Hawari]

• face_recognition version:
• Python version:
• Operating System:

Description

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[ageitgey]

Can you ask a more detailed question? Confidence of which part exactly?

[ritwik95]

I think he/she wants to know if its possible, along with returning true/false, can we also get some parameter which can tell how much confident the algorithm is that the answer is correct..like score out of 100 (%age) etc.

[sysgsoft]

For getting confidence score, you can use classifiers like svm instead of the knn in face recognition module.

[dmastag]

@sysgsoft are you saying that knn does not support returning confidence levels ?

[sysgsoft]

@sysgsoft are you saying that knn does not support returning confidence levels ?

KNN is non parametric approach. It will not perform well if we have lot of data. while testing it will take more time. I think parametric approaches like SVM will perform better.

[dmastag]

Thanks @sysgsoft
Can this library be used for SVM ? And if so, mind sharing how?

I saw this one issue asking for SVM but it has no reply yet
https://github.com/ageitgey/face_recognition/issues/477