public static void Run()
{
int seed = 1;
var rng = new Random(seed);
OptimizationProblem optimizationProblem = new Ackley(2);
var builder = new ParticleSwarmOptimizationAlgorithm.Builder(optimizationProblem);
builder.SwarmSize = 10;
builder.PhiP = 2.0;
builder.PhiG = 2.0;
builder.Omega = 0.2;
builder.ConvergenceCriterion = new MaxFunctionEvaluations(10000);
builder.Logger = new NoLogger();
builder.RandomNumberGenerator = rng;
IOptimizationAlgorithm pso = builder.Build();
IOptimizationAnalyzer analyzer = new OptimizationAnalyzer(pso);
analyzer.Optimize();
double expectedFitness = 0.0;
var expectedDesign = Vector.CreateZero(optimizationProblem.Dimension);
Assert.Equal(expectedFitness, pso.BestFitness, 3);
Assert.True(Vector.CreateFromArray(pso.BestPosition).Equals(expectedDesign, 1E-4));
}
public void Evaluate()
{
Ackley function = new Ackley();
Vector v1 = new Vector(new double[] { 1, 2, 3 });
Vector v2 = new Vector(new double[] { 0, 0, 0 });
Assert.AreEqual(7.0164536, function.Evaluate(v1), 1e-8);
Assert.AreEqual(0, function.Evaluate(v2), 1e-8);
}
public static void Main(string[] args)
{
var param = new Parametrii();
param.W = 0.729;
param.C1 = 1.49445;
param.C2 = 1.49445;
param.DimensiuneProblema = 3;
// Rastrigin
// param.Max = 5.12;
// param.Min = -5.12;
// Ackley
// param.Min = -32.768;
// param.Max = 32.768;
// nGriewank
param.Min = -600;
param.Max = 600;
param.NumarIteratii = 1000;
param.NumarParticule = 50;
param.VitezaMaxima = 1;
ProblemaDeBaza p = new Rastrigin();
var rez = p.Rezolva(param);
Console.WriteLine("Cost: " + rez.Cost);
foreach (var weight in rez.Pozitie)
{
Console.Write(weight + " ");
}
Console.WriteLine("\nRosenbrock");
p = new Rosenbrock();
rez = p.Rezolva(param);
Console.WriteLine("Cost: " + rez.Cost);
foreach (var weight in rez.Pozitie)
{
Console.Write(weight + " ");
}
Console.WriteLine("\nAckley");
p = new Ackley();
rez = p.Rezolva(param);
Console.WriteLine("Cost: " + rez.Cost);
foreach (var weight in rez.Pozitie)
{
Console.Write(weight + " ");
}
Console.WriteLine("\nGriewank");
p = new Griewank();
rez = p.Rezolva(param);
Console.WriteLine("Cost: " + rez.Cost);
foreach (var weight in rez.Pozitie)
{
Console.Write(weight + " ");
}
}
