protected override int[] InitialSolution()
{
int[] solution;
if (generatedSolutions == 0)
{
solution = TSPUtils.GreedySolution(Instance);
}
else
{
solution = TSPUtils.RandomSolution(Instance);
}
generatedSolutions++;
return(solution);
}
public MaxMinAntSystem2OptFirst4TSP(TSPInstance instance, int numberAnts, double rho,
double alpha, double beta, int maxReinit,
int candidateLength, double candidateWeight)
: base(instance.NumberCities, TSPUtils.Fitness(instance, TSPUtils.RandomSolution(instance)),
numberAnts, rho, alpha, beta, maxReinit)
{
Instance = instance;
this.candidateWeight = candidateWeight;
// Build the candidate list.
this.candidateLists = new List <Tuple <double, int> > [Instance.NumberCities];
for (int i = 0; i < Instance.NumberCities; i++)
{
this.candidateLists[i] = new List <Tuple <double, int> >();
for (int j = 0; j < Instance.NumberCities; j++)
{
if (i != j)
{
this.candidateLists[i].Add(new Tuple <double, int>(Instance.Costs[i, j], j));
}
}
this.candidateLists[i].Sort();
this.candidateLists[i].RemoveRange(candidateLength, this.candidateLists[i].Count - candidateLength);
}
}