Details

Autor(en) / Beteiligte

• Williams, Christopher K. I.

Titel

The Effect of Class Imbalance on Precision-Recall Curves

Ist Teil von

• Neural computation, 2021-04, Vol.33 (4), p.853-857

Ort / Verlag

One Rogers Street, Cambridge, MA 02142-1209, USA: MIT Press

Erscheinungsjahr

2021

Link zum Volltext

Quelle

EBSCOhost Psychology and Behavioral Sciences Collection

Beschreibungen/Notizen

• In this note, I study how the precision of a binary classifier depends on the ratio of positive to negative cases in the test set, as well as the classifier's true and false-positive rates. This relationship allows prediction of how the precision-recall curve will change with , which seems not to be well known. It also allows prediction of how and the precision gain and recall gain measures of Flach and Kull (2015) vary with .