title: What is the AUC score in sklearn.metrics?
body: <p>In <a href="http://scikit-learn.org/stable/modules/generated/sklearn.metrics.auc.html" rel="nofollow">here</a> it is discussed the auc score but this is different from the regular roc_auc_score. I see no description of this, what is it and what it is used for?</p>