Class NormalizedLogRatioConfirmationMeasure
- java.lang.Object
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- org.aksw.palmetto.calculations.direct.AbstractUndefinedResultHandlingConfirmationMeasure
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- org.aksw.palmetto.calculations.direct.NormalizedLogRatioConfirmationMeasure
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- All Implemented Interfaces:
ConfirmationMeasure,DirectConfirmationMeasure,LogBasedCalculation
public class NormalizedLogRatioConfirmationMeasure extends AbstractUndefinedResultHandlingConfirmationMeasure implements LogBasedCalculation
This confirmation measure calculates the logarithm of the ratio between the joint probability of W' and W* and the product of the two marginal probabilities. The result is normalized with the logarithm of the joint probability of W' and W*. result = log((P(W',W*) + e)/(P(W')*P(W*)))/log(P(W',W*) + e) Another name for it is normalized pointwise mutual information (NPMI). The e is defined byLogBasedCalculation.EPSILON.- Author:
- Michael Röder
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Field Summary
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Fields inherited from class org.aksw.palmetto.calculations.direct.AbstractUndefinedResultHandlingConfirmationMeasure
resultIfCalcUndefined
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Fields inherited from interface org.aksw.palmetto.calculations.direct.LogBasedCalculation
EPSILON
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Constructor Summary
Constructors Constructor Description NormalizedLogRatioConfirmationMeasure()NormalizedLogRatioConfirmationMeasure(double resultIfCalcUndefined)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double[]calculateConfirmationValues(SubsetProbabilities subsetProbabilities)Calculates the confirmation values for the given subset probabilities.StringgetName()Returns the name of the measure.-
Methods inherited from class org.aksw.palmetto.calculations.direct.AbstractUndefinedResultHandlingConfirmationMeasure
getResultIfCalcUndefined, setResultIfCalcUndefined
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Method Detail
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calculateConfirmationValues
public double[] calculateConfirmationValues(SubsetProbabilities subsetProbabilities)
Description copied from interface:DirectConfirmationMeasureCalculates the confirmation values for the given subset probabilities.- Specified by:
calculateConfirmationValuesin interfaceDirectConfirmationMeasure- Parameters:
subsetProbabilities- subset probabilities used for the calculation- Returns:
- confirmation values
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getName
public String getName()
Description copied from interface:ConfirmationMeasureReturns the name of the measure.- Specified by:
getNamein interfaceConfirmationMeasure- Returns:
- the name of the measure.
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