コード例 #1
0
 protected QualityComparator(QualityComparator original, Cloner cloner) : base(original, cloner)
 {
 }
コード例 #2
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    private void Initialize() {
      #region Create parameters
      Parameters.Add(new ValueLookupParameter<IRandom>("Random", "A pseudo random number generator."));
      Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, otherwise false."));
      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The value which represents the quality of a solution."));
      Parameters.Add(new ValueLookupParameter<DoubleValue>("BestKnownQuality", "The best known quality value found so far."));
      Parameters.Add(new ValueLookupParameter<IOperator>("Evaluator", "The operator used to evaluate solutions. This operator is executed in parallel, if an engine is used which supports parallelization."));
      Parameters.Add(new LookupParameter<IntValue>("Iterations", "The iterations to count."));
      Parameters.Add(new ValueLookupParameter<IntValue>("MaximumIterations", "The maximum number of generations which should be processed."));
      Parameters.Add(new ValueLookupParameter<VariableCollection>("Results", "The variable collection where results should be stored."));
      Parameters.Add(new ValueLookupParameter<IOperator>("Analyzer", "The operator used to analyze the solution."));
      Parameters.Add(new LookupParameter<IntValue>("EvaluatedSolutions", "The number of evaluated solutions."));
      Parameters.Add(new ValueLookupParameter<ILocalImprovementOperator>("LocalImprovement", "The local improvement operation."));
      Parameters.Add(new ValueLookupParameter<IMultiNeighborhoodShakingOperator>("ShakingOperator", "The shaking operation."));
      Parameters.Add(new LookupParameter<IntValue>("CurrentNeighborhoodIndex", "The index of the current shaking operation that should be applied."));
      Parameters.Add(new LookupParameter<IntValue>("NeighborhoodCount", "The number of neighborhood operators used for shaking."));
      #endregion

      #region Create operators
      VariableCreator variableCreator = new VariableCreator();
      SubScopesProcessor subScopesProcessor0 = new SubScopesProcessor();
      Assigner bestQualityInitializer = new Assigner();
      Placeholder analyzer1 = new Placeholder();
      ResultsCollector resultsCollector1 = new ResultsCollector();

      CombinedOperator iteration = new CombinedOperator();
      Assigner iterationInit = new Assigner();

      SubScopesCloner createChild = new SubScopesCloner();
      SubScopesProcessor childProcessor = new SubScopesProcessor();

      Assigner qualityAssigner = new Assigner();
      Placeholder shaking = new Placeholder();
      Placeholder localImprovement = new Placeholder();
      Placeholder evaluator = new Placeholder();
      IntCounter evalCounter = new IntCounter();

      QualityComparator qualityComparator = new QualityComparator();
      ConditionalBranch improvesQualityBranch = new ConditionalBranch();

      Assigner bestQualityUpdater = new Assigner();

      BestSelector bestSelector = new BestSelector();
      RightReducer rightReducer = new RightReducer();

      IntCounter indexCounter = new IntCounter();
      Assigner indexResetter = new Assigner();

      Placeholder analyzer2 = new Placeholder();

      Comparator indexComparator = new Comparator();
      ConditionalBranch indexTermination = new ConditionalBranch();

      IntCounter iterationsCounter = new IntCounter();
      Comparator iterationsComparator = new Comparator();
      ConditionalBranch iterationsTermination = new ConditionalBranch();

      variableCreator.CollectedValues.Add(new ValueParameter<BoolValue>("IsBetter", new BoolValue(false)));
      variableCreator.CollectedValues.Add(new ValueParameter<DoubleValue>("BestQuality", new DoubleValue(0)));

      bestQualityInitializer.Name = "Initialize BestQuality";
      bestQualityInitializer.LeftSideParameter.ActualName = "BestQuality";
      bestQualityInitializer.RightSideParameter.ActualName = QualityParameter.Name;

      analyzer1.Name = "Analyzer (placeholder)";
      analyzer1.OperatorParameter.ActualName = AnalyzerParameter.Name;

      resultsCollector1.CopyValue = new BoolValue(false);
      resultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>("Best Quality", null, "BestQuality"));
      resultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;

      iteration.Name = "MainLoop Body";

      iterationInit.Name = "Init k = 0";
      iterationInit.LeftSideParameter.ActualName = CurrentNeighborhoodIndexParameter.Name;
      iterationInit.RightSideParameter.Value = new IntValue(0);

      createChild.Name = "Clone solution";

      qualityAssigner.Name = "Assign quality";
      qualityAssigner.LeftSideParameter.ActualName = "OriginalQuality";
      qualityAssigner.RightSideParameter.ActualName = QualityParameter.Name;

      shaking.Name = "Shaking operator (placeholder)";
      shaking.OperatorParameter.ActualName = ShakingOperatorParameter.Name;

      localImprovement.Name = "Local improvement operator (placeholder)";
      localImprovement.OperatorParameter.ActualName = LocalImprovementParameter.Name;

      evaluator.Name = "Evaluation operator (placeholder)";
      evaluator.OperatorParameter.ActualName = EvaluatorParameter.Name;

      evalCounter.Name = "Count evaluations";
      evalCounter.Increment.Value = 1;
      evalCounter.ValueParameter.ActualName = EvaluatedSolutionsParameter.ActualName;

      qualityComparator.LeftSideParameter.ActualName = QualityParameter.Name;
      qualityComparator.RightSideParameter.ActualName = "OriginalQuality";
      qualityComparator.ResultParameter.ActualName = "IsBetter";

      improvesQualityBranch.ConditionParameter.ActualName = "IsBetter";

      bestQualityUpdater.Name = "Update BestQuality";
      bestQualityUpdater.LeftSideParameter.ActualName = "BestQuality";
      bestQualityUpdater.RightSideParameter.ActualName = QualityParameter.Name;

      bestSelector.CopySelected = new BoolValue(false);
      bestSelector.MaximizationParameter.ActualName = MaximizationParameter.Name;
      bestSelector.NumberOfSelectedSubScopesParameter.Value = new IntValue(1);
      bestSelector.QualityParameter.ActualName = QualityParameter.Name;

      indexCounter.Name = "Count neighborhood index";
      indexCounter.Increment.Value = 1;
      indexCounter.ValueParameter.ActualName = CurrentNeighborhoodIndexParameter.Name;

      indexResetter.Name = "Reset neighborhood index";
      indexResetter.LeftSideParameter.ActualName = CurrentNeighborhoodIndexParameter.Name;
      indexResetter.RightSideParameter.Value = new IntValue(0);

      analyzer2.Name = "Analyzer (placeholder)";
      analyzer2.OperatorParameter.ActualName = AnalyzerParameter.Name;

      iterationsCounter.Name = "Iterations Counter";
      iterationsCounter.Increment = new IntValue(1);
      iterationsCounter.ValueParameter.ActualName = IterationsParameter.Name;

      iterationsComparator.Name = "Iterations >= MaximumIterations";
      iterationsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
      iterationsComparator.LeftSideParameter.ActualName = IterationsParameter.Name;
      iterationsComparator.RightSideParameter.ActualName = MaximumIterationsParameter.Name;
      iterationsComparator.ResultParameter.ActualName = "Terminate";

      iterationsTermination.Name = "Iterations Termination Condition";
      iterationsTermination.ConditionParameter.ActualName = "Terminate";

      indexComparator.Name = "k < k_max (index condition)";
      indexComparator.LeftSideParameter.ActualName = CurrentNeighborhoodIndexParameter.Name;
      indexComparator.RightSideParameter.ActualName = NeighborhoodCountParameter.Name;
      indexComparator.Comparison = new Comparison(ComparisonType.Less);
      indexComparator.ResultParameter.ActualName = "ContinueIteration";

      indexTermination.Name = "Index Termination Condition";
      indexTermination.ConditionParameter.ActualName = "ContinueIteration";
      #endregion

      #region Create operator graph
      OperatorGraph.InitialOperator = variableCreator;
      variableCreator.Successor = subScopesProcessor0;
      subScopesProcessor0.Operators.Add(bestQualityInitializer);
      subScopesProcessor0.Successor = analyzer1;
      analyzer1.Successor = resultsCollector1;
      /////////
      resultsCollector1.Successor = iteration;

      iteration.OperatorGraph.InitialOperator = iterationInit;
      iteration.Successor = iterationsCounter;
      iterationInit.Successor = createChild;

      createChild.Successor = childProcessor;
      childProcessor.Operators.Add(new EmptyOperator());
      childProcessor.Operators.Add(qualityAssigner);
      childProcessor.Successor = bestSelector;
      /////////
      qualityAssigner.Successor = shaking;
      shaking.Successor = evaluator;
      evaluator.Successor = evalCounter;
      evalCounter.Successor = localImprovement;
      localImprovement.Successor = qualityComparator;
      qualityComparator.Successor = improvesQualityBranch;
      improvesQualityBranch.TrueBranch = bestQualityUpdater;
      improvesQualityBranch.FalseBranch = indexCounter;

      bestQualityUpdater.Successor = indexResetter;
      indexResetter.Successor = null;

      indexCounter.Successor = null;
      /////////
      bestSelector.Successor = rightReducer;
      rightReducer.Successor = analyzer2;
      analyzer2.Successor = indexComparator;
      indexComparator.Successor = indexTermination;
      indexTermination.TrueBranch = createChild;
      indexTermination.FalseBranch = null;

      iterationsCounter.Successor = iterationsComparator;
      iterationsComparator.Successor = iterationsTermination;
      iterationsTermination.TrueBranch = null;
      iterationsTermination.FalseBranch = iteration;
      #endregion
    }
コード例 #3
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    private void Initialize() {
      #region Create parameters
      Parameters.Add(new ValueLookupParameter<IRandom>("Random", "A pseudo random number generator."));
      Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, otherwise false."));
      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The value which represents the quality of a solution."));
      Parameters.Add(new LookupParameter<DoubleValue>("BestLocalQuality", "The value which represents the best quality found so far."));
      Parameters.Add(new ValueLookupParameter<DoubleValue>("BestKnownQuality", "The problem's best known quality value found so far."));
      Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The value which represents the quality of a move."));
      Parameters.Add(new LookupParameter<IntValue>("Iterations", "The number of iterations performed."));
      Parameters.Add(new ValueLookupParameter<IntValue>("MaximumIterations", "The maximum number of generations which should be processed."));
      Parameters.Add(new ValueLookupParameter<VariableCollection>("Results", "The variable collection where results should be stored."));

      Parameters.Add(new ValueLookupParameter<IOperator>("MoveGenerator", "The operator that generates the moves."));
      Parameters.Add(new ValueLookupParameter<IOperator>("MoveMaker", "The operator that performs a move and updates the quality."));
      Parameters.Add(new ValueLookupParameter<IOperator>("MoveEvaluator", "The operator that evaluates a move."));

      Parameters.Add(new ValueLookupParameter<IOperator>("Analyzer", "The operator used to analyze the solution and moves."));
      Parameters.Add(new LookupParameter<IntValue>("EvaluatedMoves", "The number of evaluated moves."));
      #endregion

      #region Create operators
      SubScopesProcessor subScopesProcessor0 = new SubScopesProcessor();
      Assigner bestQualityInitializer = new Assigner();
      Placeholder analyzer1 = new Placeholder();
      ResultsCollector resultsCollector1 = new ResultsCollector();
      SubScopesProcessor mainProcessor = new SubScopesProcessor();
      Placeholder moveGenerator = new Placeholder();
      UniformSubScopesProcessor moveEvaluationProcessor = new UniformSubScopesProcessor();
      Placeholder moveEvaluator = new Placeholder();
      SubScopesCounter subScopesCounter = new SubScopesCounter();
      BestSelector bestSelector = new BestSelector();
      SubScopesProcessor moveMakingProcessor = new SubScopesProcessor();
      UniformSubScopesProcessor selectedMoveMakingProcessor = new UniformSubScopesProcessor();
      QualityComparator qualityComparator = new QualityComparator();
      ConditionalBranch improvesQualityBranch = new ConditionalBranch();
      Placeholder moveMaker = new Placeholder();
      Assigner bestQualityUpdater = new Assigner();
      ResultsCollector resultsCollector2 = new ResultsCollector();
      MergingReducer mergingReducer = new MergingReducer();
      Placeholder analyzer2 = new Placeholder();
      SubScopesRemover subScopesRemover = new SubScopesRemover();
      IntCounter iterationsCounter = new IntCounter();
      Comparator iterationsComparator = new Comparator();
      ConditionalBranch iterationsTermination = new ConditionalBranch();

      bestQualityInitializer.Name = "Initialize BestQuality";
      bestQualityInitializer.LeftSideParameter.ActualName = BestLocalQualityParameter.Name;
      bestQualityInitializer.RightSideParameter.ActualName = QualityParameter.Name;

      analyzer1.Name = "Analyzer (placeholder)";
      analyzer1.OperatorParameter.ActualName = AnalyzerParameter.Name;

      resultsCollector1.CopyValue = new BoolValue(false);
      resultsCollector1.CollectedValues.Add(new LookupParameter<IntValue>(IterationsParameter.Name));
      resultsCollector1.CollectedValues.Add(new LookupParameter<DoubleValue>(BestLocalQualityParameter.Name, null, BestLocalQualityParameter.Name));
      resultsCollector1.ResultsParameter.ActualName = ResultsParameter.Name;

      moveGenerator.Name = "MoveGenerator (placeholder)";
      moveGenerator.OperatorParameter.ActualName = MoveGeneratorParameter.Name;

      moveEvaluationProcessor.Parallel = new BoolValue(true);

      moveEvaluator.Name = "MoveEvaluator (placeholder)";
      moveEvaluator.OperatorParameter.ActualName = MoveEvaluatorParameter.Name;

      subScopesCounter.Name = "Increment EvaluatedMoves";
      subScopesCounter.ValueParameter.ActualName = EvaluatedMovesParameter.Name;

      bestSelector.CopySelected = new BoolValue(false);
      bestSelector.MaximizationParameter.ActualName = MaximizationParameter.Name;
      bestSelector.NumberOfSelectedSubScopesParameter.Value = new IntValue(1);
      bestSelector.QualityParameter.ActualName = MoveQualityParameter.Name;

      qualityComparator.LeftSideParameter.ActualName = MoveQualityParameter.Name;
      qualityComparator.RightSideParameter.ActualName = QualityParameter.Name;
      qualityComparator.ResultParameter.ActualName = "IsBetter";

      improvesQualityBranch.ConditionParameter.ActualName = "IsBetter";

      moveMaker.Name = "MoveMaker (placeholder)";
      moveMaker.OperatorParameter.ActualName = MoveMakerParameter.Name;

      bestQualityUpdater.Name = "Update BestQuality";
      bestQualityUpdater.LeftSideParameter.ActualName = BestLocalQualityParameter.Name;
      bestQualityUpdater.RightSideParameter.ActualName = QualityParameter.Name;

      resultsCollector2.CopyValue = new BoolValue(false);
      resultsCollector2.CollectedValues.Add(new LookupParameter<DoubleValue>(BestLocalQualityParameter.Name, null, BestLocalQualityParameter.Name));
      resultsCollector2.ResultsParameter.ActualName = ResultsParameter.Name;

      analyzer2.Name = "Analyzer (placeholder)";
      analyzer2.OperatorParameter.ActualName = AnalyzerParameter.Name;

      subScopesRemover.RemoveAllSubScopes = true;

      iterationsCounter.Name = "Iterations Counter";
      iterationsCounter.Increment = new IntValue(1);
      iterationsCounter.ValueParameter.ActualName = IterationsParameter.Name;

      iterationsComparator.Name = "Iterations >= MaximumIterations";
      iterationsComparator.Comparison = new Comparison(ComparisonType.GreaterOrEqual);
      iterationsComparator.LeftSideParameter.ActualName = IterationsParameter.Name;
      iterationsComparator.RightSideParameter.ActualName = MaximumIterationsParameter.Name;
      iterationsComparator.ResultParameter.ActualName = "Terminate";

      iterationsTermination.Name = "Iterations Termination Condition";
      iterationsTermination.ConditionParameter.ActualName = "Terminate";
      #endregion

      #region Create operator graph
      OperatorGraph.InitialOperator = subScopesProcessor0; // don't change this without adapting the constructor of LocalSearchImprovementOperator
      subScopesProcessor0.Operators.Add(bestQualityInitializer);
      subScopesProcessor0.Successor = resultsCollector1;
      bestQualityInitializer.Successor = analyzer1;
      analyzer1.Successor = null;
      resultsCollector1.Successor = mainProcessor;
      mainProcessor.Operators.Add(moveGenerator);
      mainProcessor.Successor = iterationsCounter;
      moveGenerator.Successor = moveEvaluationProcessor;
      moveEvaluationProcessor.Operator = moveEvaluator;
      moveEvaluationProcessor.Successor = subScopesCounter;
      moveEvaluator.Successor = null;
      subScopesCounter.Successor = bestSelector;
      bestSelector.Successor = moveMakingProcessor;
      moveMakingProcessor.Operators.Add(new EmptyOperator());
      moveMakingProcessor.Operators.Add(selectedMoveMakingProcessor);
      moveMakingProcessor.Successor = mergingReducer;
      selectedMoveMakingProcessor.Operator = qualityComparator;
      qualityComparator.Successor = improvesQualityBranch;
      improvesQualityBranch.TrueBranch = moveMaker;
      improvesQualityBranch.FalseBranch = null;
      improvesQualityBranch.Successor = null;
      moveMaker.Successor = bestQualityUpdater;
      bestQualityUpdater.Successor = null;
      mergingReducer.Successor = analyzer2;
      analyzer2.Successor = subScopesRemover;
      subScopesRemover.Successor = null;
      iterationsCounter.Successor = iterationsComparator;
      iterationsComparator.Successor = iterationsTermination;
      iterationsTermination.TrueBranch = null;
      iterationsTermination.FalseBranch = mainProcessor;
      #endregion
    }
コード例 #4
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 protected QualityComparator(QualityComparator original, Cloner cloner) : base(original, cloner) { }