org.carrot2.text.vsm

Class TermDocumentMatrixReducer

java.lang.Object

org.carrot2.text.vsm.TermDocumentMatrixReducer

@Bindable(prefix="TermDocumentMatrixReducer")
public class TermDocumentMatrixReducer
extends Object

Reduces the dimensionality of a term-document matrix using a matrix factorization algorithm.

Field Summary

Fields

Modifier and Type	Field and Description
IMatrixFactorizationFactory	factorizationFactory Factorization method.
IterationNumberGuesser.FactorizationQuality	factorizationQuality Factorization quality.

Constructor Summary

Constructors

Constructor and Description
TermDocumentMatrixReducer()

Method Summary

Modifier and Type	Method and Description
void	reduce(ReducedVectorSpaceModelContext context, int dimensions) Performs the reduction.

Methods inherited from class java.lang.Object

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

Field Detail

factorizationFactory

@Input
 @Processing
 @Attribute
 @Required
 @Label(value="Factorization method")
 @Level(value=ADVANCED)
 @Group(value="Matrix model")
public IMatrixFactorizationFactory factorizationFactory

Factorization method. The method to be used to factorize the term-document matrix and create base vectors that will give rise to cluster labels.

factorizationQuality

@Input
 @Processing
 @Required
 @Attribute
 @Label(value="Factorization quality")
 @Level(value=ADVANCED)
 @Group(value="Matrix model")
public IterationNumberGuesser.FactorizationQuality factorizationQuality

Factorization quality. The number of iterations of matrix factorization to perform. The higher the required quality, the more time-consuming clustering.

Constructor Detail

TermDocumentMatrixReducer

public TermDocumentMatrixReducer()

Method Detail

reduce

public void reduce(ReducedVectorSpaceModelContext context,
                   int dimensions)

Performs the reduction.