Precision Recall vs ROC (Receiver Operating Characteristic)

There is now a better discussion of the relationship between precision/recall and ROC available in form of a book chapter.

Precision Recall vs ROC (Receiver Operating Characteristic)

Here is a direct comparison of how a particular system is characterized by a precision recall graph vs. by an ROC curve. This is the data used to plot the two charts.

Precision Recall vs ROC (Receiver Operating Characteristic)

Precision Recall Graph, Mirrored ROC Curve

ROC curve