Figure 2

AUC of the LightGBM model. (A) AUC of the LightGBM model in the train set. (B) AUC of the LightGBM model in the validation set. (C) AUC of the LightGBM model in the test set. (D) Figure shows that the AUC of the LightGBM model changes according to the training sample size. The abscissa represents the sample number, and the ordinate represents the ROC value.