Tag:fraud-detection
All the articles with the tag "fraud-detection".
Perfect Precision, Zero Recall, and No Curve to Trade Along
A document check cleared every forgery in a labelled set. The threshold was not the problem: the check read the file's structure while the forgeries were in the pixels. A seeded rebuild shows a structure-only detector reaching exactly two operating points, AUC 0.500, and what calibrating on genuine documents alone can and cannot buy.