Figure 3. Cross-validated mean-squared error for the Super Learner and the 12 candidate algorithms included in the library.
Upper panel concerns the Super Learner with categorized variables (Super Learner 1): Mean Squared Error (MSE) associated with each candidate algorithm (top figure) – Receiver Operating Curves (ROC) for each candidate algorithm (bottom figure); Lower panel concerns the Super Learner with non-transformed variables (Super Learner 2): Mean Squared Error (MSE) associated with each candidate algorithm (top figure) – Receiver Operating Curves (ROC) for each candidate algorithm (bottom figure).