Package org.carrot2.math.matrix

Class PartialSingularValueDecompositionFactory

java.lang.Object

org.carrot2.attrs.AttrComposite

org.carrot2.math.matrix.PartialSingularValueDecompositionFactory

All Implemented Interfaces:

AcceptingVisitor, MatrixFactorizationFactory

public class PartialSingularValueDecompositionFactory
extends AttrComposite
implements MatrixFactorizationFactory

Performs matrix factorization using the Singular Value Decomposition algorithm.

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	DEFAULT_K	The default desired number of base vectors
protected int	k	The desired number of base vectors

Fields inherited from class org.carrot2.attrs.AttrComposite

attributes

Constructor Summary

Constructors

Constructor	Description
PartialSingularValueDecompositionFactory()	Creates the factory that creates factorizations that compute the maximum number of base vectors.

Method Summary

Modifier and Type	Method	Description
MatrixFactorization	factorize(org.carrot2.math.mahout.matrix.DoubleMatrix2D A)	Factorizes matrix A.
int	getK()	Returns the number of base vectors k .
void	setK(int k)	Sets the number of base vectors k .

Methods inherited from class org.carrot2.attrs.AttrComposite

accept

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.carrot2.attrs.AcceptingVisitor

accept

Field Details

k

protected int k

The desired number of base vectors

DEFAULT_K

protected static final int DEFAULT_K

The default desired number of base vectors

See Also:

Constant Field Values

Constructor Details

PartialSingularValueDecompositionFactory

public PartialSingularValueDecompositionFactory()

Creates the factory that creates factorizations that compute the maximum number of base vectors.

Method Details

factorize

public MatrixFactorization factorize(org.carrot2.math.mahout.matrix.DoubleMatrix2D A)

Description copied from interface: MatrixFactorizationFactory

Factorizes matrix A.

Specified by:

factorize in interface MatrixFactorizationFactory

Parameters:

A - matrix to be factorized.

setK

public void setK(int k)

Sets the number of base vectors k .

Parameters:

k - the number of base vectors

getK

public int getK()

Returns the number of base vectors k .