net.sf.textkit4j.matching
Class NGramFactory

java.lang.Object
  net.sf.textkit4j.matching.NGramFactory

Direct Known Subclasses:

CharacterNGramFactory, WordNGramFactory

public abstract class NGramFactory
extends java.lang.Object

Generates a map of n-grams and their count in the supplied text. The supplied text can be lower-cased, white-space can be collapsed into a single white-space, and punctuation can be filtered out, depending on how this is configured.

Author:

rich

Constructor Summary

NGramFactory()

Method Summary

NGrams	bigrams(java.lang.String text)
boolean	isCollapseWhiteSpace()
boolean	isLowerCase()
boolean	isStripPunctuation()
void	setCollapseWhiteSpace(boolean collapseWhiteSpace)
void	setLowerCase(boolean lowerCase)
void	setStripPunctuation(boolean stripPunctuation)
NGrams	trigrams(java.lang.String text)
NGrams	unigrams(java.lang.String text)

Methods inherited from class java.lang.Object

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

Constructor Detail

NGramFactory

public NGramFactory()

Method Detail

unigrams

public NGrams unigrams(java.lang.String text)

Parameters:

text -

Returns:

bigrams

public NGrams bigrams(java.lang.String text)

Parameters:

text -

Returns:

trigrams

public NGrams trigrams(java.lang.String text)

Parameters:

text -

Returns:

isLowerCase

public boolean isLowerCase()

setLowerCase

public void setLowerCase(boolean lowerCase)

isCollapseWhiteSpace

public boolean isCollapseWhiteSpace()

setCollapseWhiteSpace

public void setCollapseWhiteSpace(boolean collapseWhiteSpace)

isStripPunctuation

public boolean isStripPunctuation()

setStripPunctuation

public void setStripPunctuation(boolean stripPunctuation)