public RandomSolutionInitializer()
{
permutator = new DefaultPermutator().SetSeed(this.Seed);
}
public Program PrepareExperiments()
{
var minExecutions = 100u;
var permutator = new DefaultPermutator().SetSeed(seed)
.UseSwapper(new DefaultSwapper());
var solutionInitializer = new RandomSolutionInitializer()
{
Seed = seed
};
var greedy = new Experiment($"greedy", saveResults: true, runOnlyOnce: true)
.UseInstance(instanceName)
.SetInstancesLocation(instancesLocation)
.UseBestResultsLoader(bestResults)
.UsePermutator(permutator)
.UseHeuristic(new GreedyHeuristic())
.UseInitializer(solutionInitializer)
.SetNumberOfExecutions(minExecutions);
RunExperiment(greedy);
experiments.Add(greedy);
experiments.Add(new Experiment($"random", saveResults: true)
.UseInstance(instanceName)
.SetInstancesLocation(instancesLocation)
.UseBestResultsLoader(bestResults)
.UsePermutator(permutator)
.UseHeuristic(new RandomHeuristic(timeoutInMillis: greedy.Result.MeanExecutionTime))
.UseInitializer(solutionInitializer)
.SetNumberOfExecutions(minExecutions));
experiments.Add(new Experiment($"random walk", saveResults: true)
.UseInstance(instanceName)
.SetInstancesLocation(instancesLocation)
.UseBestResultsLoader(bestResults)
.UsePermutator(permutator)
.UseHeuristic(new RandomWalkHeuristic(timeoutInMillis: greedy.Result.MeanExecutionTime))
.UseInitializer(solutionInitializer)
.SetNumberOfExecutions(minExecutions));
experiments.Add(new Experiment($"steepest", saveResults: true)
.UseInstance(instanceName)
.SetInstancesLocation(instancesLocation)
.UseBestResultsLoader(bestResults)
.UsePermutator(permutator)
.UseHeuristic(new SteepestHeurestic())
.UseInitializer(solutionInitializer)
.SetNumberOfExecutions(30));
experiments.Add(new Experiment($"SA", saveResults: true)
.UseInstance(instanceName)
.SetInstancesLocation(instancesLocation)
.UseBestResultsLoader(bestResults)
.UsePermutator(permutator)
.UseHeuristic(
new SAHeuristic(coolingDownTime: 1000, acceptanceCoefficient: 0.95f))
.UseInitializer(solutionInitializer)
.SetNumberOfExecutions(minExecutions));
experiments.Add(new Experiment($"Tabu", saveResults: true)
.UseInstance(instanceName)
.SetInstancesLocation(instancesLocation)
.UseBestResultsLoader(bestResults)
.UsePermutator(permutator)
.UseHeuristic(new TabuHeuristic())
.UseInitializer(solutionInitializer)
.SetNumberOfExecutions(30));
return(this);
}