Preoperative perineural invasion in rectal cancer based on deep learning radiomics stacking nomogram: A retrospective study

Figure 3 Receiver operating characteristic curves of the support vector machine, multi-layer perceptron, k-nearest neighbor and logistic regression. A: Receiver operating characteristic (ROC) curves of arterial support vector machine (ASVM), arterial multilayer perceptron (AMLP), arterial k-nearest neighbor (AKNN) and arterial logistic regression (ALR) in the Training set; B: ROC curves of ASVM, AMLP, AKNN and ALR in the test set; C: ROC curves of VSVM, VMLP, VKNN and VLR in the Training set; D: ROC curves of VSVM, VMLP, VKNN and VLR in the test set.