Figure 4. Feature selection via machine learning algorithms. (A) 15 genes were determined by Lasso regression. (B) The parameters of the variables in the Lasso regression model. (C) 37 genes were identified by SVM-RFE algorithm. (D) Boruta algorithm helped to select 37 genes. (E) RNMT and RBM24 were con-determined by the PPI network analysis and machine learning algorithms.