net.ontopia.topicmaps.classify

Class FrequencyAnalyzer

java.lang.Object

net.ontopia.topicmaps.classify.FrequencyAnalyzer

All Implemented Interfaces:

TermAnalyzerIF

public class FrequencyAnalyzer
extends Object
implements TermAnalyzerIF

INTERNAL: A frequency table giving the frequency with which a particular word is used in a particular language.

Field Summary

Fields

Modifier and Type	Field and Description
protected gnu.trove.map.hash.TObjectDoubleHashMap<String>	freqs

Constructor Summary

Constructors

Constructor and Description
FrequencyAnalyzer(File file) INTERNAL: Loads a frequency table from a file.
FrequencyAnalyzer(String filename) INTERNAL: Loads a frequency table as a resource.

Method Summary

Modifier and Type	Method and Description
void	analyzeTerm(Term term)
void	endAnalysis()
void	startAnalysis(TermDatabase tdb)

Methods inherited from class java.lang.Object

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

Field Detail

freqs

protected gnu.trove.map.hash.TObjectDoubleHashMap<String> freqs

Constructor Detail

FrequencyAnalyzer

public FrequencyAnalyzer(String filename)

INTERNAL: Loads a frequency table as a resource. The format is a plain text file where each line is 'term;factor' where factor is a real in the range 0-1. The score of the term after classification is multiplied with the factor. Thus, a factor of 0.5 will reduce the score of the term by half.

FrequencyAnalyzer

public FrequencyAnalyzer(File file)

INTERNAL: Loads a frequency table from a file. The format is a plain text file where each line is 'term;factor' where factor is a real in the range 0-1. The score of the term after classification is multiplied with the factor. Thus, a factor of 0.5 will reduce the score of the term by half.

Method Detail

analyzeTerm

public void analyzeTerm(Term term)

Specified by:

analyzeTerm in interface TermAnalyzerIF

startAnalysis

public void startAnalysis(TermDatabase tdb)

Specified by:

startAnalysis in interface TermAnalyzerIF

endAnalysis

public void endAnalysis()

Specified by:

endAnalysis in interface TermAnalyzerIF