Figure 2

Influence of parameter variation on model prediction accuracy. The figure shows the ROC curve of k (where k = 2, 3, 4, 5) fold CV and the respective AUC values (fivefold CV: AUC = 0.9145; fourfold CV: AUC = 0.9108; threefold CV: AUC = 0.9039; twofold CV: AUC = 0.8877).