private void MutateTheFrogs()
{
for (var i = 1; i < Pond.Count; i++)
{
var randomNumber = MyParameters.RandomGenerator.NextDouble();
if (!(randomNumber < ((SFLAParameters)MyParameters).ProbabilityOfMutation))
{
continue;
}
if (CurrentFFEs >= MaximumNumberOfFitnessFunctionEvaluations)
{
return;
}
var mutada = new Frog(Pond[i]);
mutada.Mutate();
Pond[i] = new Frog(mutada);
}
}
private void LocalSearch()
{
var myParameters = (SFLAParameters)MyParameters;
for (var mplex = 0; mplex < myParameters.NumberOfMemeplexes; mplex++)
{
if (CurrentFFEs > MaximumNumberOfFitnessFunctionEvaluations)
{
break;
}
for (var iteration = 0; iteration < myParameters.MaxLocalIterations; iteration++)
{
if (CurrentFFEs > MaximumNumberOfFitnessFunctionEvaluations)
{
break;
}
var bestFrog = new Frog((Memeplex[mplex])[0]);
var worstFrog = new Frog((Memeplex[mplex])[FrogsByMemeplex - 1]);
var auxiliarFrog = new Frog(worstFrog);
auxiliarFrog.Jump(bestFrog);
if (MyTabuMemory.IsTabu(auxiliarFrog.SelectedPhrases))
{
auxiliarFrog.Fitness = 0;
}
if (auxiliarFrog.Fitness > worstFrog.Fitness)
{
(Memeplex[mplex])[FrogsByMemeplex - 1] = auxiliarFrog;
}
else
{
auxiliarFrog = new Frog(worstFrog);
auxiliarFrog.Jump(GBest);
if (MyTabuMemory.IsTabu(auxiliarFrog.SelectedPhrases))
{
auxiliarFrog.Fitness = 0;
}
if (auxiliarFrog.Fitness > worstFrog.Fitness)
{
(Memeplex[mplex])[FrogsByMemeplex - 1] = auxiliarFrog;
}
else
{
auxiliarFrog = new Frog(this);
auxiliarFrog.RandomInitialization();
if (!MyTabuMemory.IsTabu(auxiliarFrog.SelectedPhrases))
{
(Memeplex[mplex])[FrogsByMemeplex - 1] = auxiliarFrog;
}
}
}
if (auxiliarFrog.Fitness > GBest.Fitness)
{
GBest = new Frog(auxiliarFrog);
}
}
Memeplex[mplex].Sort((x, y) => - 1 * x.Fitness.CompareTo(y.Fitness));
}
}
public Frog(Frog origin) : base(origin)
{
Alfa = origin.Alfa;
}
