When judging a system using the ROC curve, you need to evaluate both the precision AND the recall. You are pointing out that the precision is low, and must be i

When judging a system using the ROC curve, you need to evaluate both the precision AND the recall. You are pointing out that the precision is low, and must be improved; the article is pointing out that recall ought to be improved. Both are true, and we cannot use just one of the two metrics to evaluate system performance. https://en.wikipedia.org/wiki/Receiver_operating_characteristic https://en.wikipedia.org/wiki/Receiver_operating_characteris...