water.util.comparison.string

Class QGramComparator

java.lang.Object

water.util.comparison.string.QGramComparator

All Implemented Interfaces:

StringComparator

public class QGramComparator
extends java.lang.Object
implements StringComparator

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	QGramComparator.Formula Represents the different formulas we can use to compute similarity.
static class	QGramComparator.Tokenizer Represents the different ways we can tokenize a string into a set of q-grams for a given q.

Constructor Summary

Constructors

Constructor and Description
QGramComparator()

Method Summary

Modifier and Type	Method and Description
double	compare(java.lang.String s1, java.lang.String s2)
boolean	isTokenized()
void	setFormula(QGramComparator.Formula formula) Tells the comparator what formula to use to compute the actual similarity.
void	setQ(int q) Sets the value of q, that is, the size of the q-grams.
void	setTokenizer(QGramComparator.Tokenizer tokenizer) Tells the comparator what tokenizer to use to produce q-grams.

Methods inherited from class java.lang.Object

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

Constructor Detail

QGramComparator

public QGramComparator()

Method Detail

isTokenized

public boolean isTokenized()

Specified by:

isTokenized in interface StringComparator

compare

public double compare(java.lang.String s1,
                      java.lang.String s2)

Specified by:

compare in interface StringComparator

setQ

public void setQ(int q)

Sets the value of q, that is, the size of the q-grams.

setFormula

public void setFormula(QGramComparator.Formula formula)

Tells the comparator what formula to use to compute the actual similarity.

setTokenizer

public void setTokenizer(QGramComparator.Tokenizer tokenizer)

Tells the comparator what tokenizer to use to produce q-grams.