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The AUC values of different methods. (A) The AUC values of methods for normalization. (B) The AUC values of methods for feature preprocessing. (C) The AUC values of methods for dimensionality reduction. (D) The AUC values of methods for generating the final signature. (E) LR regression coefficients and features. (F) The AUC values of the testing set and the training set based on the optimal radiomics signature.
