L: Specifies the Model Library File, continuing the list of all models.
W: Specifies the Working Directory, where all models will be stored.
B: Set the number of bags, i.e., number of iterations to run
the ensemble selection algorithm.
E: Set the ratio of library models that will be randomly chosen
to populate each bag of models.
V: Set the ratio of the training data set that will be reserved
for validation.
H: Set the number of hillclimbing iterations to be performed
on each model bag.
I: Set the the ratio of the ensemble library that the sort
initialization algorithm will be able to choose from while
initializing the ensemble for each model bag
X: Sets the number of cross-validation folds.
P: Specify the metric that will be used for model selection
during the hillclimbing algorithm.
Valid metrics are:
accuracy, rmse, roc, precision, recall, fscore, all
A: Specifies the algorithm to be used for ensemble selection.
Valid algorithms are:
"forward" (default) for forward selection.
"backward" for backward elimination.
"both" for both forward and backward elimination.
"best" to simply print out top performer from the
ensemble library
"library" to only train the models in the ensemble
library
R: Flag whether or not models can be selected more than once
for an ensemble.
G: Whether sort initialization greedily stops adding models
when performance degrades.
O: Flag for verbose output. Prints out performance of all
selected models.
S: Random number seed.
(default 1)
D: If set, classifier is run in debug mode and
may output additional info to the console
The Preliminary Attribute Check tests the underlying classifier against the DataTable specification at the inport of the node. Columns that are compatible with the classifier are marked with a green 'ok'. Columns which are potentially not compatible are assigned a red error message.
Important: If a column is marked as 'incompatible', it does not necessarily mean that the classifier cannot be executed! Sometimes, the error message 'Cannot handle String class' simply means that no nominal values are available (yet). This may change during execution of the predecessor nodes.
Capabilities: [Nominal attributes, Binary attributes, Unary attributes, Empty nominal attributes, Numeric attributes, Date attributes, Missing values, Nominal class, Binary class, Numeric class]
Dependencies: []
min # Instance: 1
