Figure 11.
The image presents a graph divided into two sections (a and b). The upper section displays predicted models percentages against the training set, with the x-axis marked from zero to eighty-five and the y-axis showing predicted models in percentages ranging from negative one point two to zero point eight. Different models are represented using specific symbols: blue diamonds for Support Vector Machine (S V M), grey triangles for Artificial Neural Network (A N N), orange squares for Gaussian Process Regression (G P R), and yellow crosses for Random Forest (R F). The lower section illustrates the predicted error models against the test set, where the x-axis ranges from zero to forty and the y-axis maintains the same percentage range. Symbols for the model predictions remain consistent throughout both sections. The graph features a horizontal reference line across the lower portion, indicating the error level, and data points are scattered, suggesting variations across both sets.(a) Training set error levels for the suggested models and (b) testing set error levels for the suggested models