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Using LASSO and SVM-RFE algorithm to identify the key eigenvalues of severe IPF. (A) Eigenvalues between severe IPF and healthy lungs calculated using LASSO. (B) Eigenvalues between severe IPF and healthy lungs calculated using SVM-RFE. (C) Venn graph of eigenvalues filtered using SVM-RFE (blue) and LASSO (red). IPF, Idiopathic Pulmonary Fibrosis; LASSO, least absolute shrinkage and selector operation; SVM-RFE, support vector machine-recursive feature elimination; miR, microRNA.
