Figure 4: The Area Under Curve (AUC) plot as evaluated by Receiver
Operating Characteristic (ROC) of various supervised models (i.e., kNN,
random forest, neural network, naïve bayes, logistic regression)
evaluated using target variables of (a) one-dimensional
(T1-relaxation), (b) one-dimensional
(T2-relaxation), (c) two-dimensional
(T1-relaxation, T2-relaxation), and (d)
three-dimensional (T1-relaxation,
T2-relaxation, A-ratio) using leave-one-out training
method. Other details can be found in Table 1.