/**
* Update the speed of each particle
*/
void SMPSOhv::computeSpeed(int iter, int miter) {
double r1, r2, W, C1, C2;
double wmax, wmin;
XReal *bestGlobal;
for (int i = 0; i < swarmSize; i++) {
XReal *particle = new XReal(particles->get(i));
XReal *bestParticle = new XReal(best[i]);
//Select a global best for calculate the speed of particle i, bestGlobal
Solution *one, *two;
int pos1 = PseudoRandom::randInt(0,leaders->size()-1);
//int pos1 = PseudoRandom::randInt(0,leaders->size()-1);
int pos2 = PseudoRandom::randInt(0,leaders->size()-1);
one = leaders->get(pos1);
two = leaders->get(pos2);
if (crowdingDistanceComparator->compare(one,two) < 1) {
bestGlobal = new XReal(one);
} else {
bestGlobal = new XReal(two);
}
//Params for velocity equation
r1 = PseudoRandom::randDouble(r1Min, r1Max);
r2 = PseudoRandom::randDouble(r2Min, r2Max);
C1 = PseudoRandom::randDouble(C1Min, C1Max);
C2 = PseudoRandom::randDouble(C2Min, C2Max);
W = PseudoRandom::randDouble(WMin, WMax);
wmax = WMax;
wmin = WMin;
for (int var = 0; var < particle->getNumberOfDecisionVariables(); var++) {
//Computing the velocity of this particle
speed[i][var] = velocityConstriction(constrictionCoefficient(C1, C2) *
(inertiaWeight(iter, miter, wmax, wmin) *
speed[i][var] +
C1 * r1 * (bestParticle->getValue(var) -
particle->getValue(var)) +
C2 * r2 * (bestGlobal->getValue(var) -
particle->getValue(var))), deltaMax,
deltaMin,
var,
i);
}
delete bestGlobal;
delete particle;
delete bestParticle;
}
} // computeSpeed
/**
* Update the speed of each particle
*/
void PSO::computeSpeed(int iter, int miter) {
double r1, r2;
//double W ;
double C1, C2;
double wmax, wmin, deltaMax, deltaMin;
XReal * bestGlobal;
bestGlobal = new XReal(globalBest_) ;
for (int i = 0; i < particlesSize_; i++) {
XReal * particle = new XReal(particles_->get(i)) ;
XReal * bestParticle = new XReal(localBest_[i]) ;
//int bestIndividual = findBestSolution_->execute(particles_) ;
C1Max_ = 2.5;
C1Min_ = 1.5;
C2Max_ = 2.5;
C2Min_ = 1.5;
r1 = PseudoRandom::randDouble(r1Min_, r1Max_);
r2 = PseudoRandom::randDouble(r2Min_, r2Max_);
C1 = PseudoRandom::randDouble(C1Min_, C1Max_);
C2 = PseudoRandom::randDouble(C2Min_, C2Max_);
//W = PseudoRandom.randDouble(WMin_, WMax_);
//
WMax_ = 0.9;
WMin_ = 0.9;
ChVel1_ = 1.0;
ChVel2_ = 1.0;
C1 = 2.5;
C2 = 1.5;
wmax = WMax_;
wmin = WMin_;
/*
for (int var = 0; var < particle.size(); var++) {
//Computing the velocity of this particle
speed_[i][var] = velocityConstriction(constrictionCoefficient(C1, C2) *
(inertiaWeight(iter, miter, wmax, wmin) *
speed_[i][var] +
C1 * r1 * (bestParticle.getValue(var) - particle.getValue(var)) +
C2 * r2 * (bestGlobal.getValue(var) -
particle.getValue(var))), deltaMax_,
deltaMin_, //[var],
var,
i);
}
*/
C1 = 1.5;
C2 = 1.5;
double W = 0.9;
for (int var = 0; var < particle->size(); var++) {
//Computing the velocity of this particle
speed_[i][var] = inertiaWeight(iter, miter, wmax, wmin) * speed_[i][var] +
C1 * r1 * (bestParticle->getValue(var) - particle->getValue(var)) +
C2 * r2 * (bestGlobal->getValue(var) - particle->getValue(var)) ;
}
delete particle;
delete bestParticle;
}
delete bestGlobal;
} // computeSpeed
