Fig. 3

Construction and evaluation of the RIS model. A Feature weight based on the relief calculation; B Grid search comparing AUCs among various feature dimensions; C Hazard Ratios for RIS in each clinicopathological subgroup in the Nanfang hospital cohort; D, E The performance of RIS model to predict IS measured by ROC curves in the training and validation cohort; F The performance of RIS model to predict survival measured by ROC curves in the validation cohort; G–H Kaplan–Meier curves for patients with High- and Low-RIS in the training and validation cohort