ROC and PR curves for the proposed prediction approach. (a) ROC curves and (b) PR curves are plotted using sensitivity and specificity, obtained from the test sets of 10-fold cross validation, under different degrees of imbalanced-ness. Red color curve denotes the curve for the balanced data. Green, blue and purple are the curves for the dataset with different degrees of imbalanced-ness indicated as legend. Legends for PR curves are same as the legends for ROC curves.