Fig. 3

Receiver operating characteristic (ROC) curves of LR, GNB and SVM models in predicting hospital mortality. A ROC curves of LR; B ROC curves of GNB; C ROC curves of GNB; The y-axis represents the TPR of the risk prediction, the x-axis represents the FPR of the risk prediction. The ROC curve computed in training (red solid line) and testing (blue solid line) in each graph. LR logistic regression analysis, GNB Gaussian Naive Bayes, SVM support vector machines