eu.etrap.medusa.significance

Class FreqMutInfSignificanceImpl

java.lang.Object

eu.etrap.medusa.config.ClassConfig

eu.etrap.medusa.significance.AbstractSignificance

eu.etrap.medusa.significance.FreqMutInfSignificanceImpl

All Implemented Interfaces:

Significance

public class FreqMutInfSignificanceImpl
extends AbstractSignificance

This is the measure Kilgarriff uses in his Webcorpora for cooccurrences. The idea is that mutinf overvalues rare words, but multiplied with the pure frequency of cooccurrence this should even out, because those rare get only a small multiplicator such as 1,2 or 3, but the medium-ranged words get a rather large multiplicator. Seems to work surprisingly well.

Author:

Stefan Bordag

Field Summary

Fields

Modifier and Type	Field and Description
static double	scalefactor

Fields inherited from class eu.etrap.medusa.significance.AbstractSignificance

n, PARSER_FILTER_IMPL

Fields inherited from class eu.etrap.medusa.config.ClassConfig

BOOLEAN_DEFAULT, DOUBLE_DEFAULT, FORMAT_IMPL, INT_DEFAULT, LONG_DEFAULT, objConf, objConfCategory, objFormat, strBackupConfFile, STRING_DEFAULT

Constructor Summary

Constructors

Constructor and Description
FreqMutInfSignificanceImpl()

Method Summary

Modifier and Type	Method and Description
long	compute(int nab, int na, int nb)
double	computeASDouble(int intnab, int intna, int intnb)
java.lang.String	getAbbreviation()
static void	main(java.lang.String[] args)

Methods inherited from class eu.etrap.medusa.significance.AbstractSignificance

computeASDouble, init

Methods inherited from class eu.etrap.medusa.config.ClassConfig

config, getConfiguration, getGlobalProperty, getProperty, getProperty, getStatisticsProperty, loadFormatImpl, selfconfig, setGlobalProperty, setProperty, setProperty, setStatisticsProperty, setStatisticsProperty

Methods inherited from class java.lang.Object

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

Field Detail

scalefactor

public static double scalefactor

Constructor Detail

FreqMutInfSignificanceImpl

public FreqMutInfSignificanceImpl()

Method Detail

compute

public long compute(int nab,
                    int na,
                    int nb)

Specified by:

compute in interface Significance

Overrides:

compute in class AbstractSignificance

computeASDouble

public double computeASDouble(int intnab,
                              int intna,
                              int intnb)

Specified by:

computeASDouble in interface Significance

Overrides:

computeASDouble in class AbstractSignificance

main

public static void main(java.lang.String[] args)

getAbbreviation

public java.lang.String getAbbreviation()

Specified by:

getAbbreviation in interface Significance

Overrides:

getAbbreviation in class AbstractSignificance