favor models that they know better. We adopted the default
suggestions of the R tool [29], except for the hyperparameters
(which were set using a grid search). Since the default settings are
more commonly used, this seems a reasonable assumption for the
comparison. Nevertheless, different NN results could be achieved if
different hidden node and/or minimization cost functions were used.
Under the tested setup, the SVM algorithm provided the best results
while requiring more computation. Yet, the SVM fitting can still be
achieved within a reasonable time with current processors. For
example, one run of the 5-fold cross-validation testing takes around
26 min for the larger white dataset, which covers a three-year
collection period.