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More on ROC/AUC

A bit more on the ROC/AUC

The issue

The receiver operating characteristic curve (or ROC) is one of the standard methods to evaluate a scoring system. Nina Zumel has described its application, but I would like to call out some additional details. In my opinion while the ROC is a useful tool, the “area under the curve” (AUC) summary often read off it is not as intuitive and interpretable as one would hope or some writers assert.

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