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what is the meaning of "ROC(Threshholds)"?

what is the meaning of "ROC(Threshholds)"? See Picture Below

Image: https://us.v-cdn.net/6030995/uploads/editor/88/mkjgdmk8sqc2.jpg

It is the result of process "Jump to Tutorial Process" of operator "Performance"

Image: https://us.v-cdn.net/6030995/uploads/editor/cs/ur14vftpi4pk.jpg

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Hi,

in order to get a certain TPR/FPR (the red curve) you need to apply a certain confidence threshold. Thats the blue curve.

Cheers,

Martin

hi@mschmitz ，what is the meaning of the x-axis of ROC(Threshholds) curve？

Hi @lg21c, the x-axis of ROC is false positive rate. We want to have a model that reach a high true positive rate while a low false positive rate, the lower the better. More definitions: http://www.damienfrancois.be/blog/files/modelperfcheatsheet.pdf
Cheers,
YY

Hi@mschmitz , is the x-axis of ROC(Threshholds) curve false positive rate ,too?

seem not to be

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