gov.sandia.cognition.text.term.vector.weighter.local

Class BinaryLocalTermWeighter

java.lang.Object

gov.sandia.cognition.util.AbstractCloneableSerializable

gov.sandia.cognition.math.matrix.DefaultVectorFactoryContainer

gov.sandia.cognition.text.term.vector.weighter.local.AbstractLocalTermWeighter

gov.sandia.cognition.text.term.vector.weighter.local.BinaryLocalTermWeighter

All Implemented Interfaces:

VectorFactoryContainer, LocalTermWeighter, CloneableSerializable, java.io.Serializable, java.lang.Cloneable

public class BinaryLocalTermWeighter
extends AbstractLocalTermWeighter

Makes the given term weights binary, by creating a vector that contains a 1.0 for all non-zero entries in the given vector and a 0.0 for the all the zeros. Used to indicate that a given term exists in a document, ignoring the frequency of occurrence.

Since:

3.0

Author:

Justin Basilico

See Also:

Serialized Form

Field Summary

Fields inherited from class gov.sandia.cognition.math.matrix.DefaultVectorFactoryContainer

vectorFactory

Constructor Summary

Constructors

Constructor and Description
BinaryLocalTermWeighter() Creates a new BinaryLocalTermWeighter.
BinaryLocalTermWeighter(VectorFactory<? extends Vector> vectorFactory) Creates a new BinaryLocalTermWeighter.

Method Summary

Modifier and Type	Method and Description
Vector	computeLocalWeights(Vector counts) Computes the new local weights for a given document.

Methods inherited from class gov.sandia.cognition.text.term.vector.weighter.local.AbstractLocalTermWeighter

computeLocalWeights

Methods inherited from class gov.sandia.cognition.math.matrix.DefaultVectorFactoryContainer

getVectorFactory, setVectorFactory

Methods inherited from class gov.sandia.cognition.util.AbstractCloneableSerializable

clone

Methods inherited from class java.lang.Object

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

Methods inherited from interface gov.sandia.cognition.util.CloneableSerializable

clone

Constructor Detail

BinaryLocalTermWeighter

public BinaryLocalTermWeighter()

Creates a new BinaryLocalTermWeighter.

BinaryLocalTermWeighter

public BinaryLocalTermWeighter(VectorFactory<? extends Vector> vectorFactory)

Creates a new BinaryLocalTermWeighter.

Parameters:

vectorFactory - The vector factory to use.

Method Detail

computeLocalWeights

public Vector computeLocalWeights(Vector counts)

Description copied from interface: LocalTermWeighter

Computes the new local weights for a given document.

Parameters:

counts - The document to compute local weights for.

Returns:

The local weight vector for the documents.