Predicting prolonged postoperative ileus in gastric cancer patients based on bowel sounds using intelligent auscultation and machine learning

Figure 6 Comparison of area under the receiver operating characteristic curves between eight machine learning models in the training cohort. A: Performance of eight models in the training cohort; B: Performance of eight models in the internal validation cohort. The Brier class represents the Brier score; C: Calibration curves of the eight models in the training; D: Calibration curves of the eight models in the internal validation cohorts; E: Comparison of decision curve analysis (DCA) curves between eight machine learning models in the training cohort; F: Comparison of DCA curves between eight machine learning models in the internal validation cohort.