static private void AC(TSP tsp, int T, int NumberOfAnts, double alpha, double beta)
{
int t = 0;
List <int> ListPositionAnts = Init(tsp.NrOrase);
List <Furnica> Ants = new List <Furnica>(InitAnts(ListPositionAnts, NumberOfAnts));
double[,] Pheromone = new double[tsp.NrOrase, tsp.NrOrase];
double[,] miu = new double[tsp.NrOrase, tsp.NrOrase];
Furnica BestAnt = new Furnica
{
Tur = new List <int>()
};
Console.Write("p: ");
double p = Convert.ToDouble(Console.ReadLine());
Console.Write("Q: ");
int Q = Convert.ToInt32(Console.ReadLine());
InitPheromone(Pheromone, tsp.NrOrase, tsp.NrOrase);
InitMiu(miu, tsp);
while (t < T)
{
for (int pas = 1; pas < tsp.NrOrase; pas++)
{
for (int k = 0; k < NumberOfAnts; k++)
{
if (t == 0)
{
Ants[k].Tur.Add(StatetransitionRule(tsp, Ants[k], Pheromone, miu, alpha, beta, pas));
}
else
{
Ants[k].Tur[pas] = StatetransitionRule(tsp, Ants[k], Pheromone, miu, alpha, beta, pas);
}
}
}
UpdatePheromone(Pheromone, Ants, tsp, p, Q);
BestAnt.Tur.Clear();
BestAnt.Tur.AddRange(DetBestAnt(Ants, tsp));
t++;
}
WriteAnts(Ants);
WriteEvalAnts(Ants, tsp);
WritePheromone(Pheromone);
WriteSol(BestAnt.Tur);
WriteEvalSol(BestAnt, tsp);
Console.ReadKey();
}
static private List <Furnica> InitAnts(List <int> listPosition, int NumberOfAnts)
{
List <Furnica> Ants = new List <Furnica>();
for (int position = 0; position < NumberOfAnts; position++)
{
Furnica Ant = new Furnica
{
Tur = new List <int>()
};
Ant.Tur.Add(listPosition[position]);
Ants.Add(Ant);
}
return(Ants);
}
static private int StatetransitionRule(TSP tsp, Furnica Ant, double[,] Pheromone, double[,] miu, double alpha, double beta, int pas)
{
int BestCity = 0;
double rnd = new Random().NextDouble();
double[] prob = new double[tsp.NrOrase];
InitProb(prob, Pheromone, miu, Ant, alpha, beta, pas);
for (int i = 0; i < prob.Length; i++)
{
double partialSum = InitPartialSum(prob, 0, i);
if (rnd <= partialSum)
{
BestCity = i;
break;
}
}
return(BestCity);
}
static private void WriteEvalSol(Furnica ant, TSP tsp)
{
Console.WriteLine("Fitness = {0}", ant.Eval(tsp));
}
static private void InitProb(double[] prob, double[,] Pheromone, double[,] miu, Furnica Ant, double alpha, double beta, int pas)
{
int index = Ant.Tur[pas - 1];
double sum = 0;
for (int i = 0; i < prob.Length; i++)
{
if (Ant.Tur.FindIndex(0, pas, x => x == i) == -1)
{
sum = sum + (Math.Pow(Pheromone[index, i], alpha) * Math.Pow(miu[index, i], beta));
}
}
for (int i = 0; i < prob.Length; i++)
{
if (i != index && Ant.Tur.FindIndex(0, pas, x => x == i) == -1)
{
prob[i] = (Math.Pow(Pheromone[index, i], alpha) * Math.Pow(miu[index, i], beta)) / sum;
}
else
{
prob[i] = 0;
}
}
}
