Synopsis
This operator calculates the relevance of an attribute by measuring the symmetrical uncertainty with respect to the class.
Description
This operator calculates the relevance of an attribute by measuring the symmetrical uncertainty with respect to the class. The formulaization for this is:
relevance = 2 * (P(Class) - P(Class | Attribute)) / P(Class) + P(Attribute)
Input
- example set: expects: ExampleSet
Output
- weights:
- example set:
Parameters
- normalize weights: Activates the normalization of all weights.
- number of bins: The number of bins used for discretization of numerical attributes before the chi squared test can be performed.