gr.demokritos.iit.jinsect.algorithms.nlp
Class PorterStemmer

java.lang.Object
  gr.demokritos.iit.jinsect.algorithms.nlp.PorterStemmer

public class PorterStemmer
extends java.lang.Object

Constructor Summary

PorterStemmer()

Method Summary

protected boolean	containsVowel(java.lang.String str)
protected boolean	endsWithCVC(java.lang.String str)
protected boolean	endsWithDoubleConsonent(java.lang.String str)
protected boolean	endsWithS(java.lang.String str)
boolean	isVowel(char c)
java.lang.String	stem(java.lang.String str) Performs stemming over a given string.
protected java.lang.String	step1a(java.lang.String str)
protected java.lang.String	step1b(java.lang.String str)
protected java.lang.String	step1b2(java.lang.String str)
protected java.lang.String	step1c(java.lang.String str)
protected java.lang.String	step2(java.lang.String str)
protected java.lang.String	step3(java.lang.String str)
protected java.lang.String	step4(java.lang.String str)
protected java.lang.String	step5a(java.lang.String str)
protected java.lang.String	step5b(java.lang.String str)
protected int	stringMeasure(java.lang.String str)

Methods inherited from class java.lang.Object

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

Constructor Detail

PorterStemmer

public PorterStemmer()

Method Detail

stem

public java.lang.String stem(java.lang.String str)

Performs stemming over a given string.

Parameters:

str - The given string.

Returns:

The stemmed string.

step1a

protected java.lang.String step1a(java.lang.String str)

step1b

protected java.lang.String step1b(java.lang.String str)

step1b2

protected java.lang.String step1b2(java.lang.String str)

step1c

protected java.lang.String step1c(java.lang.String str)

step2

protected java.lang.String step2(java.lang.String str)

step3

protected java.lang.String step3(java.lang.String str)

step4

protected java.lang.String step4(java.lang.String str)

step5a

protected java.lang.String step5a(java.lang.String str)

step5b

protected java.lang.String step5b(java.lang.String str)

endsWithS

protected boolean endsWithS(java.lang.String str)

containsVowel

protected boolean containsVowel(java.lang.String str)

isVowel

public boolean isVowel(char c)

endsWithDoubleConsonent

protected boolean endsWithDoubleConsonent(java.lang.String str)

stringMeasure

protected int stringMeasure(java.lang.String str)

endsWithCVC

protected boolean endsWithCVC(java.lang.String str)