pso

Class PsoParticle

java.lang.Object
  pso.Candidate
      pso.PsoParticle

public class PsoParticle
extends Candidate

Particle for Particle Swarm Optimisation assumes float parameters see www.swarmintelligence.org for additional information

Field Summary

static float	maxParVal maximum parameter value
static float	maxPosVal maximum particle position value
static float	maxSpeedVal maximum particle speed value
static float	minParVal minimum parameter value
static float	minPosVal minimum particle position value

Fields inherited from class pso.Candidate

perform, pos

Constructor Summary

PsoParticle(java.util.ArrayList<java.lang.Double> _pos)

Method Summary

float	malusPerformance(float _perf, int n) alter performance of particle p when not in parameter domain
static java.util.ArrayList<java.lang.Double>	random(int size) generates random parameter space vector
void	shuffle() shuffles particle and local best information
void	updateParticle() change particle position according to pso algorithm formula
void	updatePerformance(float _perform) updates the particle performance after checking the position to the specified search domain if not in domain the performance is dramatically altered

Methods inherited from class java.lang.Object

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

Field Detail

minParVal

public static float minParVal

minimum parameter value

maxParVal

public static float maxParVal

maximum parameter value

minPosVal

public static float minPosVal

minimum particle position value

maxPosVal

public static float maxPosVal

maximum particle position value

maxSpeedVal

public static float maxSpeedVal

maximum particle speed value

Constructor Detail

PsoParticle

public PsoParticle(java.util.ArrayList<java.lang.Double> _pos)

Method Detail

updateParticle

public void updateParticle()

change particle position according to pso algorithm formula

updatePerformance

public void updatePerformance(float _perform)

updates the particle performance after checking the position to the specified search domain if not in domain the performance is dramatically altered

Parameters:

_perform -

malusPerformance

public float malusPerformance(float _perf,
                              int n)

alter performance of particle p when not in parameter domain

Parameters:

_perf -

Returns:

updated performance

shuffle

public void shuffle()

shuffles particle and local best information

random

public static java.util.ArrayList<java.lang.Double> random(int size)

generates random parameter space vector

Parameters:

size -

Returns: