NormalizedLogRatioConfirmationMeasure (Palmetto 0.1.4 API)

java.lang.Object
- org.aksw.palmetto.calculations.direct.AbstractUndefinedResultHandlingConfirmationMeasure
- - org.aksw.palmetto.calculations.direct.NormalizedLogRatioConfirmationMeasure

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 by LogBasedCalculation.EPSILON.

Author:

Michael Röder

Field Summary
- Fields inherited from class org.aksw.palmetto.calculations.direct.AbstractUndefinedResultHandlingConfirmationMeasure
  resultIfCalcUndefined
- Fields inherited from interface org.aksw.palmetto.calculations.direct.LogBasedCalculation
  EPSILON

Constructor Summary

Constructors
Constructor Description

NormalizedLogRatioConfirmationMeasure()

NormalizedLogRatioConfirmationMeasure(double resultIfCalcUndefined)

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.
`String`	`getName()`	Returns the name of the measure.

Methods inherited from class org.aksw.palmetto.calculations.direct.AbstractUndefinedResultHandlingConfirmationMeasure
getResultIfCalcUndefined, setResultIfCalcUndefined

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - NormalizedLogRatioConfirmationMeasure
```
public NormalizedLogRatioConfirmationMeasure()
```
  - NormalizedLogRatioConfirmationMeasure
```
public NormalizedLogRatioConfirmationMeasure(double resultIfCalcUndefined)
```
- Method Detail
  - calculateConfirmationValues
```
public double[] calculateConfirmationValues(SubsetProbabilities subsetProbabilities)
```
    Description copied from interface: DirectConfirmationMeasure
    
    Calculates the confirmation values for the given subset probabilities.
    
    Specified by:
    
    calculateConfirmationValues in interface DirectConfirmationMeasure
    
    Parameters:
    
    subsetProbabilities - subset probabilities used for the calculation
    
    Returns:
    
    confirmation values
  - getName
```
public String getName()
```
    Description copied from interface: ConfirmationMeasure
    
    Returns the name of the measure.
    
    Specified by:
    
    getName in interface ConfirmationMeasure
    
    Returns:
    
    the name of the measure.