PR AUC

Also: area under the precision-recall curve, average precision

Area under the precision-recall curve, which unlike ROC AUC takes no credit for correctly dismissing the abundant negative class. The right summary metric when positives are rare.

A definition is not an understanding. This is taught properly in Metrics and thresholds, worked through, part of Imbalanced and messy data.

Learn this properly

Terms from the same topic

Class imbalance SMOTE