lio.search.pso
Class Particle

java.lang.Object
  lio.search.pso.Particle

Direct Known Subclasses:

StdContParticle

public abstract class Particle
extends java.lang.Object

This class implement the basic components of a particle. Since the way of representing the velocity depends on the kind of data each subclass must define it.

Field Summary

protected Particle	bestNeighbour Reference to other particle that is the best of the neighbourhood
protected Individual	bestPosition Best position and fitness of the particle
protected Individual	currentPosition Current position and fitness of the particle

Constructor Summary

Particle()

Method Summary

double	bestValue()
Particle	getBestNeighbour()
Individual	getBestPosition()
Individual	getCurrentPosition()
void	move() Moves the particle according to its velocity
abstract void	newPoint() Calculates the new point
void	setBestNeighbour(Particle bestNeighbour)
void	setBestPosition(Individual bestPosition)
void	setCurrentPosition(Individual currentPosition)
double	value()

Methods inherited from class java.lang.Object

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

Field Detail

currentPosition

protected Individual currentPosition

Current position and fitness of the particle

bestPosition

protected Individual bestPosition

Best position and fitness of the particle

bestNeighbour

protected Particle bestNeighbour

Reference to other particle that is the best of the neighbourhood

Constructor Detail

Particle

public Particle()

Method Detail

move

public void move()

Moves the particle according to its velocity

newPoint

public abstract void newPoint()

Calculates the new point

value

public double value()

Returns:

the current fitness of the particle

bestValue

public double bestValue()

Returns:

The best value reached by the particle

getBestNeighbour

public Particle getBestNeighbour()

Returns:

the bestNeighbour

setBestNeighbour

public void setBestNeighbour(Particle bestNeighbour)

Parameters:

bestNeighbour - the bestNeighbour to set

getBestPosition

public Individual getBestPosition()

Returns:

the bestPosition

setBestPosition

public void setBestPosition(Individual bestPosition)

Parameters:

bestPosition - the bestPosition to set

getCurrentPosition

public Individual getCurrentPosition()

Returns:

the currentPosition

setCurrentPosition

public void setCurrentPosition(Individual currentPosition)

Parameters:

currentPosition - the currentPosition to set