public MaxMinAntSystem2OptBest4SPP(SPPInstance instance, int numberAnts, double rho,
double alpha, double beta, int maxReinit)
: base(instance.NumberItems, SPPUtils.Fitness(instance, SPPUtils.RandomSolution(instance)),
numberAnts, rho, alpha, beta, maxReinit)
{
Instance = instance;
}
protected override double Fitness(int[] solution)
{
if (solution[0] >= Instance.NumberSubsets)
{
solution[0] = Statistics.RandomDiscreteUniform(0, Instance.NumberSubsets - 1);
}
return(SPPUtils.Fitness(Instance, solution));
}
public void Write(string file)
{
double deviation = SPPUtils.Fitness(Instance, Assignment);
using (StreamWriter writer = File.CreateText(file)) {
writer.WriteLine(deviation);
writer.WriteLine(Instance.NumberItems);
writer.WriteLine(Instance.NumberSubsets);
writer.WriteLine();
for (int i = 0; i < Instance.NumberItems; i++)
{
writer.WriteLine(Assignment[i] + 1);
}
}
}
protected override double Fitness(int[] individual)
{
return(SPPUtils.Fitness(Instance, individual));
}
protected override double Fitness(int[] solution)
{
return(SPPUtils.Fitness(Instance, solution));
}
