org.apache.ctakes.assertion.attributes.features.selection

Class MutualInformationFeatureSelection.MutualInformationStats<OUTCOME_T>

java.lang.Object

org.apache.ctakes.assertion.attributes.features.selection.MutualInformationFeatureSelection.MutualInformationStats<OUTCOME_T>

Enclosing class:

MutualInformationFeatureSelection<OUTCOME_T>

public static class MutualInformationFeatureSelection.MutualInformationStats<OUTCOME_T>
extends java.lang.Object

Helper class for aggregating and computing mutual information statistics

Field Summary

Fields

Modifier and Type	Field and Description
protected	classConditionalCounts
protected	classCounts
protected double	smoothingCount

Constructor Summary

Constructors

Constructor and Description
MutualInformationFeatureSelection.MutualInformationStats(double smoothingCount)

Method Summary

Methods

Modifier and Type	Method and Description
	getScoreFunction(MutualInformationFeatureSelection.CombineScoreMethod combineScoreMethod)
double	mutualInformation(java.lang.String featureName, OUTCOME_T outcome)
void	save(java.net.URI outputURI)
private static int	sum(java.util.Collection<java.lang.Integer> values)
void	update(java.lang.String featureName, OUTCOME_T outcome, int occurrences)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

classCounts

protected  classCounts

classConditionalCounts

protected  classConditionalCounts

smoothingCount

protected double smoothingCount

Constructor Detail

MutualInformationFeatureSelection.MutualInformationStats

public MutualInformationFeatureSelection.MutualInformationStats(double smoothingCount)

Method Detail

update

public void update(java.lang.String featureName,
          OUTCOME_T outcome,
          int occurrences)

mutualInformation

public double mutualInformation(java.lang.String featureName,
                       OUTCOME_T outcome)

sum

private static int sum(java.util.Collection<java.lang.Integer> values)

save

public void save(java.net.URI outputURI)
          throws java.io.IOException

Throws:

java.io.IOException

getScoreFunction

public  getScoreFunction(MutualInformationFeatureSelection.CombineScoreMethod combineScoreMethod)