Fig. 2: Receiver operating characteristic (ROC) curves of methods on classifying adenocarcinoma and squamous cell carcinoma.

Area under the ROC curve (AUC) was measured for each data set and method. All the measurements were taken from distinct samples. a, b ROC curves on the standard testing data set (n = 1397). c, d ROC curves on the small lesion data set (n = 476). e, f ROC curves on TCGA-diagnostic data set (n = 1044). g, h ROC curves on TCGA-tissue data set (n = 2167). The dark blue, cyan, and red lines represent CNN-MaxFeat-based RF, MIL-RNN, and whole-slide training method, respectively.