Package unifeat.featureSelection.wrapper.PSOBasedMethods.BPSO

Class Particle

java.lang.Object

unifeat.featureSelection.wrapper.PSOBasedMethods.BasicParticle<Boolean,Double>

unifeat.featureSelection.wrapper.PSOBasedMethods.BPSO.Particle

public class Particle
extends BasicParticle<Boolean,Double>

This java class is used to represent a particle in binary particle swarm optimization (BPSO) method in which the type of position vector is boolean and the type of velocity vector is double.

Author:

Sina Tabakhi

See Also:

• BasicParticle

Field Summary

Fields inherited from class unifeat.featureSelection.wrapper.PSOBasedMethods.BasicParticle

pBest, position, velocity

Constructor Summary

Constructors

Constructor	Description
Particle(int dimension)	Initializes the parameters

Method Summary

Modifier and Type	Method	Description
int	numSelectedFeatures()	This method returns the number of selected features by the particle based on position vector.
int[]	selectedFeaturesSubset()	This method returns the indices of selected features by the particle based on position vector.

Methods inherited from class unifeat.featureSelection.wrapper.PSOBasedMethods.BasicParticle

getFitness, getPBestFitness, setFitness, setPBestFitness

Methods inherited from class java.lang.Object

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

Constructor Details

Particle

public Particle(int dimension)

Initializes the parameters

Parameters:

dimension - the dimension of problem which equals to total number of features in the dataset

Method Details

numSelectedFeatures

public int numSelectedFeatures()

This method returns the number of selected features by the particle based on position vector.

Specified by:

numSelectedFeatures in class BasicParticle<Boolean,Double>

Returns:

number of selected features by the particle

selectedFeaturesSubset

public int[] selectedFeaturesSubset()

This method returns the indices of selected features by the particle based on position vector.

Specified by:

selectedFeaturesSubset in class BasicParticle<Boolean,Double>

Returns:

the array of indices of the selected features by the particle