dragon.ir.classification.featureselection

Class NullFeatureSelector

java.lang.Object

dragon.ir.classification.featureselection.AbstractFeatureSelector

dragon.ir.classification.featureselection.NullFeatureSelector

All Implemented Interfaces:

FeatureSelector, Serializable

public class NullFeatureSelector
extends AbstractFeatureSelector
implements Serializable

A Null Feature Selector

No feature reduction is done actually

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

See Also:

Serialized Form

Field Summary

Fields inherited from class dragon.ir.classification.featureselection.AbstractFeatureSelector

featureMap, selectedFeatureNum

Constructor Summary

Constructors

Constructor and Description
NullFeatureSelector()

Method Summary

Modifier and Type	Method and Description
protected int[]	getSelectedFeatures(IndexReader indexReader, DocClassSet trainingSet)
protected int[]	getSelectedFeatures(SparseMatrix doctermMatrix, DocClassSet trainingSet)

Methods inherited from class dragon.ir.classification.featureselection.AbstractFeatureSelector

getClassPrior, getSelectedFeatureNum, getTermDistribution, getTermDistribution, getTermDocFrequency, isSelected, map, setSelectedFeatures, train, train

Methods inherited from class java.lang.Object

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

Constructor Detail

NullFeatureSelector

public NullFeatureSelector()

Method Detail

getSelectedFeatures

protected int[] getSelectedFeatures(IndexReader indexReader,
                                    DocClassSet trainingSet)

Specified by:

getSelectedFeatures in class AbstractFeatureSelector

getSelectedFeatures

protected int[] getSelectedFeatures(SparseMatrix doctermMatrix,
                                    DocClassSet trainingSet)

Specified by:

getSelectedFeatures in class AbstractFeatureSelector