Esempio n. 1
0
 private TabuSearch(TabuSearch original, Cloner cloner)
     : base(original, cloner)
 {
     moveQualityAnalyzer      = cloner.Clone(original.moveQualityAnalyzer);
     tabuNeighborhoodAnalyzer = cloner.Clone(original.tabuNeighborhoodAnalyzer);
     Initialize();
 }
    private TabuSearch CreateTabuSearchTspSample() {
      TabuSearch ts = new TabuSearch();
      #region Problem Configuration
      var provider = new TSPLIBTSPInstanceProvider();
      var instance = provider.GetDataDescriptors().Where(x => x.Name == "ch130").Single();
      TravelingSalesmanProblem tspProblem = new TravelingSalesmanProblem();
      tspProblem.Load(provider.LoadData(instance));
      tspProblem.UseDistanceMatrix.Value = true;
      #endregion
      #region Algorithm Configuration
      ts.Name = "Tabu Search - TSP";
      ts.Description = "A tabu search algorithm that solves the \"ch130\" TSP (imported from TSPLIB)";
      ts.Problem = tspProblem;

      ts.MaximumIterations.Value = 1000;
      // move generator has to be set first
      var moveGenerator = ts.MoveGeneratorParameter.ValidValues
        .OfType<StochasticInversionMultiMoveGenerator>()
        .Single();
      ts.MoveGenerator = moveGenerator;
      var moveEvaluator = ts.MoveEvaluatorParameter.ValidValues
        .OfType<TSPInversionMoveRoundedEuclideanPathEvaluator>()
        .Single();
      ts.MoveEvaluator = moveEvaluator;
      var moveMaker = ts.MoveMakerParameter.ValidValues
        .OfType<InversionMoveMaker>()
        .Single();
      ts.MoveMaker = moveMaker;
      ts.SampleSize.Value = 750;
      ts.Seed.Value = 0;
      ts.SetSeedRandomly.Value = true;

      var tabuChecker = ts.TabuCheckerParameter.ValidValues
        .OfType<InversionMoveSoftTabuCriterion>()
        .Single();
      tabuChecker.UseAspirationCriterion.Value = true;
      ts.TabuChecker = tabuChecker;

      var tabuMaker = ts.TabuMakerParameter.ValidValues
        .OfType<InversionMoveTabuMaker>()
        .Single();
      ts.TabuMaker = tabuMaker;
      ts.TabuTenure.Value = 60;

      #endregion
      ts.Engine = new ParallelEngine.ParallelEngine();
      return ts;
    }
    private TabuSearch CreateTabuSearchVrpSample() {
      TabuSearch ts = new TabuSearch();
      #region Problem Configuration
      var provider = new AugeratInstanceProvider();
      var instance = provider.GetDataDescriptors().Where(x => x.Name == "A-n62-k8").Single();
      VehicleRoutingProblem vrpProblem = new VehicleRoutingProblem();
      vrpProblem.Load(provider.LoadData(instance));
      #endregion
      #region Algorithm Configuration
      ts.Name = "Tabu Search - VRP";
      ts.Description = "A tabu search algorithm that solves the \"A-n62-k8\" VRP (imported from Augerat)";
      ts.Problem = vrpProblem;

      ts.MaximumIterations.Value = 200;
      // move generator has to be set first
      var moveGenerator = ts.MoveGeneratorParameter.ValidValues
        .OfType<PotvinCustomerRelocationExhaustiveMoveGenerator>()
        .Single();
      ts.MoveGenerator = moveGenerator;
      var moveEvaluator = ts.MoveEvaluatorParameter.ValidValues
        .OfType<PotvinCustomerRelocationMoveEvaluator>()
        .Single();
      ts.MoveEvaluator = moveEvaluator;
      var moveMaker = ts.MoveMakerParameter.ValidValues
        .OfType<PotvinCustomerRelocationMoveMaker>()
        .Single();
      ts.MoveMaker = moveMaker;
      ts.SampleSize.Value = 1000;
      ts.Seed.Value = 0;
      ts.SetSeedRandomly.Value = true;

      var tabuChecker = ts.TabuCheckerParameter.ValidValues
        .OfType<PotvinCustomerRelocationMoveTabuCriterion>()
        .Single();
      tabuChecker.UseAspirationCriterion.Value = false;
      ts.TabuChecker = tabuChecker;

      var tabuMaker = ts.TabuMakerParameter.ValidValues
        .OfType<PotvinCustomerRelocationMoveTabuMaker>()
        .Single();
      ts.TabuMaker = tabuMaker;
      ts.TabuTenure.Value = 6;

      #endregion
      ts.Engine = new ParallelEngine.ParallelEngine();
      return ts;
    }
Esempio n. 4
0
 private TabuSearch(TabuSearch original, Cloner cloner)
   : base(original, cloner) {
   moveQualityAnalyzer = cloner.Clone(original.moveQualityAnalyzer);
   tabuNeighborhoodAnalyzer = cloner.Clone(original.tabuNeighborhoodAnalyzer);
   Initialize();
 }