Graph data: Each node has a predefined feature. File name description private_features.pkl # node feature. private_graph.pkl # graph edges private_num_classes.pkl # number of classes private_test_labels.pkl # an array of length 1200 with each element being -1. private_test_mask.pkl # nodes indices of testing set private_train_labels.pkl # nodes labels of training set private_train_mask.pkl # nodes indices of training set private_val_labels.pkl # nodes labels of validation set private_val_mask.pkl # nodes indices of validation set