Fig. 4: Feature correlations and machine learning model accuracy.

a Heat map of remaining features after RFE. b ROC curve of the test set based on the extra-tree model. c ROC curve of the train set using the extra-tree model.

a Heat map of remaining features after RFE. b ROC curve of the test set based on the extra-tree model. c ROC curve of the train set using the extra-tree model.