Wrapper Split Validation


Synopsis

A simple validation method to check the performance of a feature weighting or selection wrapper.


Description

This operator evaluates the performance of feature weighting algorithms including feature selection. The first inner operator is the weighting algorithm to be evaluated itself. It must return an attribute weights vector which is applied on the data. Then a new model is created using the second inner operator and a performance is retrieved using the third inner operator. This performance vector serves as a performance indicator for the actual algorithm. This implementation is described for the RandomSplitValidationChain.


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ExampleProcess