/// <summary>
/// Creates a new <see cref="Population{TProgram,TOutput}" /> with the given arguments.
/// </summary>
/// <param name="maxSize">The maximum size of the population.</param>
/// <param name="primitives">The primitive set used to generate new programs.</param>
/// <param name="programGenerator">The generator of new programs.</param>
/// <param name="programComparer">The function used to compare programs and select the best program.</param>
/// <param name="selectionOperator">The operator to perform selection.</param>
/// <param name="crossoverOperator">The operator to crossover programs. </param>
/// <param name="mutationOperator">The operator to mutate programs.</param>
/// <param name="maxGenerationDepth">The maximum depth of elements generated during GP.</param>
/// <param name="maxElementLength">The maximum length of elements generated during GP.</param>
/// <param name="crossoverPercent">The percentage of a population used for the crossover operator during GP.</param>
/// <param name="mutationPercent">The percentage of a population used for the mutation operator during GP.</param>
/// <param name="elitismPercent">The percentage of a population used for elite selection during GP.</param>
public Population(
uint maxSize,
PrimitiveSet <TProgram> primitives,
IProgramGenerator <TProgram, TOutput> programGenerator,
IComparer <TProgram> programComparer,
ISelectionOperator <TProgram> selectionOperator,
ICrossoverOperator <TProgram> crossoverOperator,
IMutationOperator <TProgram> mutationOperator,
uint maxGenerationDepth = 4,
uint maxElementLength = 20,
double crossoverPercent = 0.65d,
double mutationPercent = 0.2d,
double elitismPercent = 0.1d)
{
this._maxSize = maxSize;
this._primitives = primitives;
this._programGenerator = programGenerator;
this._maxGenerationDepth = maxGenerationDepth;
this._maxElementLength = maxElementLength;
this._programComparer = programComparer;
this._selectionOperator = selectionOperator;
this._mutationOperator = mutationOperator;
this._crossoverOperator = crossoverOperator;
this.ElitismPercent = elitismPercent;
this.MutationPercent = mutationPercent;
this.CrossoverPercent = crossoverPercent;
}
public ObjectOperatorsPackage()
{
Operators = new IMutationOperator[]
{
new DEH_MethodDelegatedForEventHandlingChange(),
new DMC_DelegatedMethodChange(),
//new EOC_EqualityOperatorChange(),
new EMM_ModiferMethodChange(),
new EAM_AccessorMethodChange(),
new EHC_ExceptionHandlingChange(),
new EHR_ExceptionHandlerRemoval(),
new EXS_ExceptionSwallowing(),
new ISD_BaseKeywordDeletion(),
new JID_FieldInitializationDeletion(),
new JTD_ThisKeywordDeletion(),
// new RFI_ReferencingFaultInsertion(),
new PRV_ReferenceAssignmentChange(),
new MCI_MemberCallFromAnotherInheritedClass(),
// new NullInsertion(),
//new RSO_RemoveStatementOperator(),
};
}
private void InitializeGeneticAlgorithm()
{
fitnessFunction = new FitnessFunction(cities);
selectionOperator = new TournamentSelection(Convert.ToInt32(inputTournamentSize.Value));
elitistSelection = new ElitistSelection();
crossoverOperator = GetSelectedCrossoverOperator();
mutationOperator = GetSelectedMutationOperator();
initialPopulationProvider = new InitialPopulationProvider();
settings = new Settings
{
Cities = cities,
NumberOfElites = Convert.ToInt32(inputElites.Value),
PopulationSize = Convert.ToInt32(inputMaxPopulation.Value),
CrossoverRate = Convert.ToDouble(inputCrossoverRate.Value),
MutationRate = Convert.ToDouble(inputMutationRate.Value)
};
selectionOperator = new TournamentSelection(Convert.ToInt32(inputTournamentSize.Value));
geneticAlgorithm = new GeneticAlgorithm(settings, initialPopulationProvider, fitnessFunction, selectionOperator, elitistSelection, crossoverOperator, mutationOperator);
generationsPlotData = new List <double>();
averageScorePlotData = new List <double>();
bestScorePlotData = new List <double>();
UpdatePlotData();
Plot();
DrawSolution(geneticAlgorithm.CurrentBestSolution, panelBestSolution, bestSolutionGraphics);
buttonNextGeneration.Enabled = true;
buttonRun.Enabled = true;
buttonReset.Enabled = true;
}
private Tuple <int, long> RunBenchmark(ICrossoverOperator crossover, IMutationOperator mutation)
{
crossoverOperator = crossover;
mutationOperator = mutation;
var bestFitnessScores = new List <int>();
var computationTimes = new List <long>();
for (int k = 0; k < 20; k++)
{
Initialize();
var stopwatch = new Stopwatch();
for (int i = 0; i < inputGenerationsNumber.Value; i++)
{
stopwatch.Start();
geneticAlgorithm.ComputeNextGeneration();
stopwatch.Stop();
}
bestFitnessScores.Add(geneticAlgorithm.CurrentBestSolution.FitnessScore);
computationTimes.Add(stopwatch.ElapsedMilliseconds);
}
var avgBestScore = bestFitnessScores.Average();
var avgComputationTime = computationTimes.Average();
return(new Tuple <int, long>((int)avgBestScore, (long)avgComputationTime));
}
private void InitializeGeneticAlgorithm()
{
fitnessFunction = new FitnessFunction(inventory);
selectionOperator = new RouletteWheelSelection();
elitistSelection = new ElitistSelection();
crossoverOperator = new ContinuousUniformCrossover();
mutationOperator = new WeightsMutation();
initialPopulationProvider = new InitialPopulationProvider();
settings = new Settings
{
Inventory = inventory,
NumberOfCriterias = 3,
NumberOfElites = Convert.ToInt32(inputElites.Value),
PopulationSize = Convert.ToInt32(inputMaxPopulation.Value),
CrossoverRate = Convert.ToDouble(inputCrossoverRate.Value),
MutationRate = Convert.ToDouble(inputMutationRate.Value)
};
selectionOperator = new TournamentSelection(Convert.ToInt32(inputTournamentSize.Value));
geneticAlgorithm = new GeneticAlgorithm(settings, initialPopulationProvider, fitnessFunction, selectionOperator, elitistSelection, crossoverOperator, mutationOperator);
generationsPlotData = new List <double>();
averageScorePlotData = new List <double>();
bestScorePlotData = new List <double>();
UpdatePlotData();
Plot();
buttonNextGeneration.Enabled = true;
buttonRun.Enabled = true;
buttonReset.Enabled = true;
}
public EvolutionService(IProblemService problemService, IPopulationFactory populationFactory,
ICrossoverOperator crossoverOperator,
IMutationOperator mutationOperator)
{
_problemService = problemService;
_populationFactory = populationFactory;
_crossoverOperator = crossoverOperator;
_mutationOperator = mutationOperator;
}
public MutationConditionalTests()
{
testDv = Helpers.CreateDecisionVectorWithMixedElements();
insideMutationDoNothing = new MutationAddRandomIntegerFromSet(
new[] { mutation },
0, 1);
insideMutation = new MutationAddRandomIntegerFromSet(
new[] { mutation },
1, 1);
}
public async Task <MutationResult> ExecuteMutation(Mutant mutant, CciModuleSource moduleSource)
{
var type = new TypeIdentifier((INamedTypeDefinition)mutant.MutationTarget.ProcessingContext.Type.Object);
var method = new MethodIdentifier((IMethodDefinition)mutant.MutationTarget.ProcessingContext.Method.Object);
var filter = new MutationFilter(type.InList(), method.InList());
_log.Debug("ExecuteMutation of: " + type + " - " + method);
IMutationOperator mutationOperator = mutant.MutationTarget.OperatorId == null ? new IdentityOperator() :
_mutOperators.Single(m => mutant.MutationTarget.OperatorId == m.Info.Id);
var cci = moduleSource;
try
{
_log.Info("Execute mutation of " + mutant.MutationTarget + " contained in " + mutant.MutationTarget.MethodRaw + " modules. ");
var mutatedModules = new List <IModuleInfo>();
var module = moduleSource.Modules.Single();
var visitorBack = new VisualCodeVisitorBack(mutant.MutationTarget.InList(),
_sharedTargets.GetValues(mutationOperator, returnEmptySet: true),
module.Module, mutationOperator.Info.Id);
var traverser2 = new VisualCodeTraverser(_filter, visitorBack, moduleSource);
traverser2.Traverse(module.Module);
visitorBack.PostProcess();
var operatorCodeRewriter = mutationOperator.CreateRewriter();
var rewriter = new VisualCodeRewriter(cci.Host, visitorBack.TargetAstObjects,
visitorBack.SharedAstObjects, _filter, operatorCodeRewriter, traverser2);
operatorCodeRewriter.MutationTarget =
new UserMutationTarget(mutant.MutationTarget.Variant.Signature, mutant.MutationTarget.Variant.AstObjects);
operatorCodeRewriter.NameTable = cci.Host.NameTable;
operatorCodeRewriter.Host = cci.Host;
operatorCodeRewriter.Module = module.Module;
operatorCodeRewriter.OperatorUtils = _operatorUtils;
operatorCodeRewriter.Initialize();
var rewrittenModule = rewriter.Rewrite(module.Module);
rewriter.CheckForUnfoundObjects();
mutant.MutationTarget.Variant.AstObjects = null; //TODO: avoiding leaking memory. refactor
mutatedModules.Add(new ModuleInfo(rewrittenModule, ""));
var result = new MutationResult(mutant, cci, null,
mutant.MutationTarget.MethodMutated);
mutant.MutationTarget.MethodMutated = null; //TODO: avoiding leaking memory. refactor
return(result);
}
catch (Exception e)
{
throw new MutationException("CreateMutants failed on operator: {0}.".Formatted(mutationOperator.Info.Name), e);
}
}
public async Task <MutationResult> ExecuteMutation(Mutant mutant, List <CciModuleSource> moduleSource)
{
//Ta druga funkcja
_log.Debug("ExecuteMutation in object: " + ToString() + GetHashCode());
IMutationOperator mutationOperator = mutant.MutationTarget.OperatorId == null ? new IdentityOperator() :
_mutOperators.Single(m => mutant.MutationTarget.OperatorId == m.Info.Id);
try
{
_log.Info("Execute mutation of " + mutant.MutationTarget + " contained in " + mutant.MutationTarget.MethodRaw + " modules. ");
var mutatedModules = new List <IModuleInfo>();
foreach (var cci in moduleSource)
{
var module = cci.Module;
var visitorBack = new VisualCodeVisitorBack(mutant.MutationTarget.InList(),
_sharedTargets.GetValues(mutationOperator, returnEmptySet: true),
module.Module, mutationOperator.Info.Id);
var traverser2 = new VisualCodeTraverser(_filter, visitorBack, cci);
traverser2.Traverse(module.Module);
visitorBack.PostProcess();
var operatorCodeRewriter = mutationOperator.CreateRewriter();
var rewriter = new VisualCodeRewriter(cci.Host, visitorBack.TargetAstObjects,
visitorBack.SharedAstObjects, _filter, operatorCodeRewriter, traverser2);
operatorCodeRewriter.MutationTarget =
new UserMutationTarget(mutant.MutationTarget.Variant.Signature, mutant.MutationTarget.Variant.AstObjects);
operatorCodeRewriter.NameTable = cci.Host.NameTable;
operatorCodeRewriter.Host = cci.Host;
operatorCodeRewriter.Module = module.Module;
operatorCodeRewriter.OperatorUtils = _operatorUtils;
operatorCodeRewriter.Initialize();
var rewrittenModule = rewriter.Rewrite(module.Module);
rewriter.CheckForUnfoundObjects();
}
mutant.MutationTarget.Variant.AstObjects = null; //TODO: avoiding leaking memory. refactor
// mutatedModules.Add(new ModuleInfo(rewrittenModule, ""));
List <IMethodDefinition> methodMutated = new List <IMethodDefinition>();
methodMutated.Add(mutant.MutationTarget.MethodMutated);
var result = new MutationResult(mutant, null, moduleSource, mutant.MutationTarget.MethodMutated);
mutant.MutationTarget.MethodMutated = null; //TODO: avoiding leaking memory. refactor
return(result);
}
catch (Exception e)
{
throw new MutationException("CreateMutants failed on operator: {0}.".Formatted(mutationOperator.Info.Name), e);
}
}
/// <summary>
/// Constructs a mutation operator that restricts application of a mutation to elements of a <see cref="DecisionVector"/> where all conditions are met.
/// </summary>
/// <param name="mutation">The <see cref="IMutationOperator"/> to restrict.</param>
/// <param name="conditions">The restrictions to apply on the current value of each <see cref="DecisionVector"/> element.</param>
/// <exception cref="ArgumentOutOfRangeException">Thrown when conditions are null or empty.</exception>
public MutationConditional(IMutationOperator mutation, params Func <object, bool>[] conditions)
{
this.mutation = mutation;
if (conditions.Length == 0)
{
throw new ArgumentOutOfRangeException(nameof(conditions), "The conditions cannot be null or empty.");
}
this.conditions = conditions;
}
public IChromosome <T> ApplyMutationOperator(IMutationOperator mutationOperator)
{
var newGenes = new T[Length];
for (var i = 0; i < Length; i++)
{
newGenes[i] = mutationOperator.MutateGene(i, this);
}
return(new Chromosome <T>(newGenes));
}
public GenerationalGeneticAlgorithm(
IProblem <T> problem,
int populationSize,
ISelectionOperator <T> selectionOperator,
ICrossoverOperator <T> crossoverOperator,
IMutationOperator <T> mutationOperator,
ITerminationCondition terminationCondition,
double elitismRate)
: base(problem, populationSize, selectionOperator,
crossoverOperator, mutationOperator, terminationCondition)
{
_elitismRate = elitismRate;
}
public StandardOperatorsPackage()
{
Operators = new IMutationOperator[]
{
new AOR_ArithmeticOperatorReplacement(),
// new ABS_AbsoluteValueInsertion(),
new SOR_ShiftOperatorReplacement(),
// new UOI_UnaryOperatorInsertion(),
new LCR_LogicalConnectorReplacement(),
new LOR_LogicalOperatorReplacement(),
new ROR_RelationalOperatorReplacement(),
};
}
public Population(
ISelectionOperator selectionOperator,
ICrossoverOperator crossoverOperator,
IMutationOperator mutationOperator,
int maxPopulationSize)
{
this.selectionOperator = selectionOperator ?? throw new ArgumentNullException(nameof(selectionOperator));
this.crossoverOperator = crossoverOperator ?? throw new ArgumentNullException(nameof(crossoverOperator));
this.mutationOperator = mutationOperator ?? throw new ArgumentNullException(nameof(mutationOperator));
this.size = maxPopulationSize;
this.individuals = new List <IIndividual>();
this.isSorted = false;
}
static ChromosomeOperator()
{
//crossover = new CrossoverOperatorAEX();
//crossover = new CrossoverOperatorPMX();
crossover = new CrossoverOperatorOX();
//mutationOperator = new MutationOperatorRandomTwoPoints();
mutationOperator = new MutationOperatorRSM();
//mutationOperator = new MutationOperatorRandomAndThenRSM();
//mutationOperator = new MutationOperatorPSM();
//mutationOperator = new MutationOperatorHalfRSMHalfPSM();
//mutationOperator = new MutationOperatorInsertionsWithReverse();
// mutationOperator = new MutationOperatorHalfRSMHalfInsertions();
}
public SteadyStateGeneticAlgorithm(
IProblem <T> problem,
int populationSize,
ISelectionOperator <T> selectionOperator,
ICrossoverOperator <T> crossoverOperator,
IMutationOperator <T> mutationOperator,
ITerminationCondition terminationCondition,
double generationGap,
IReplacementOperator <T> replacementOperator) :
base(problem, populationSize, selectionOperator,
crossoverOperator, mutationOperator, terminationCondition)
{
_generationGap = generationGap;
_replacementOperator = replacementOperator;
}
public GeneticAlgorithm(int numberOfIndividuals, int chromosomeSize,
ICrossOperator crossOperator,
IMutationOperator mutationOperator,
ISelectionOperator selectionOperator,
Func <double, double> fitnessFunction)
{
_numberOfIndividuals = numberOfIndividuals;
_chromosomeSize = chromosomeSize;
_crossOperator = crossOperator;
_mutationOperator = mutationOperator;
_selectionOperator = selectionOperator;
_fitnessFunction = fitnessFunction;
CrossoverProbability = 0.90;
MutationProbability = 0.05;
}
public StandardOperatorsPackage()
{
Operators = new IMutationOperator[]
{
new AOR_ArithmeticOperatorReplacement(),
// new ABS_AbsoluteValueInsertion(),
new SOR_ShiftOperatorReplacement(),
// new UOI_UnaryOperatorInsertion(),
new LCR_LogicalConnectorReplacement(),
new LOR_LogicalOperatorReplacement(),
new ROR_RelationalOperatorReplacement(),
};
}
public EvolutionaryAlgorithmBuilderContinuousMO(
Population population,
DecisionSpace decisionSpace,
HyperParameterManager hyperParameters,
IParentSelectionOperator parentSelector,
IRecombinationOperator recombinationOperator,
IMutationOperator mutationOperator,
IReinsertionOperator reinsertionOperator)
{
this.decisionSpace = decisionSpace;
HyperParameters.AddFromExistingHyperParameterSet(hyperParameters);
this.population = population;
this.parentSelector = parentSelector;
this.recombinationOperator = recombinationOperator;
this.mutationOperator = mutationOperator;
this.reinsertionOperator = reinsertionOperator;
}
public GeneticAlgorithm(Settings settings,
IInitialPopulationProvider initialPopulationProvider,
IFitnessFunction fitnessFunction,
ISelectionOperator selectionOperator,
IElitistSelection elitistSelection,
ICrossoverOperator crossoverOperator,
IMutationOperator mutationOperator)
{
this.settings = settings;
this.fitnessFunction = fitnessFunction;
this.selectionOperator = selectionOperator;
this.elitistSelection = elitistSelection;
this.crossoverOperator = crossoverOperator;
this.mutationOperator = mutationOperator;
currentPopulation = initialPopulationProvider.GetInitialPopulation(settings.PopulationSize, settings.NumberOfCriterias);
ComputeCurrentGenerationData();
}
public GeneticAlgorithmBuilder(
IProblem <T> problem,
ICrossoverOperator <T> crossoverOperator,
IMutationOperator <T> mutationOperator)
{
_problem = problem;
_crossoverOperator = crossoverOperator;
_mutationOperator = mutationOperator;
_selectionOperator = new TournamentSelectionOperator <T>(3, problem);
_replacementOperator = new WorstFitnessReplacementOperator <T>(problem);
_populationSize = 1000;
_maxGenerations = 1000;
_maxEvaluations = 100000;
_fitnessValue = 10e-6;
_elitismRate = 1.0 / _populationSize;
_generationGap = 0.4;
_variant = GeneticAlgorithmVariant.SteadyState;
}
/// <summary>
/// Creates an Evolutionary Algorithm.
/// </summary>
/// <param name="initialPopulation">The initial population (can be empty).</param>
/// <param name="fitnessCalculator">A <see cref="FitnessCalculatorSingleObjective"/>. <see cref="Optimiser"/></param>
/// <param name="initialIndividualGenerator">Creates new decision vectors to build the first population. <seealso cref="Base.Conversion.IModel"/></param>
/// <param name="parentSelector">The <see cref="IParentSelectionOperator"/> to use.</param>
/// <param name="recombinationOperator">The <see cref="IRecombinationOperator"/> to use.</param>
/// <param name="mutationOperator">The <see cref="IMutationOperator"/> to use.</param>
/// <param name="reinsertionOperator">The <see cref="IReinsertionOperator"/> to use.</param>
/// <param name="hyperParameters">The <see cref="HyperParameterManager"/> object with relevant settings.</param>
public EvolutionaryAlgorithm(
Population initialPopulation,
IFitnessCalculator fitnessCalculator,
Func <DecisionVector> initialIndividualGenerator,
IParentSelectionOperator parentSelector,
IRecombinationOperator recombinationOperator,
IMutationOperator mutationOperator,
IReinsertionOperator reinsertionOperator,
HyperParameterManager hyperParameters)
: base(initialPopulation, fitnessCalculator)
{
this.initialIndividualGenerator = initialIndividualGenerator;
this.parentSelector = parentSelector;
numberOfParents = hyperParameters.GetHyperParameterValue <int>(EvolutionaryAlgorithmHyperParameters.Number_Of_Parents);
this.recombinationOperator = recombinationOperator;
this.mutationOperator = mutationOperator;
this.reinsertionOperator = reinsertionOperator;
}
public ObjectOperatorsPackage()
{
Operators = new IMutationOperator[]
{
new DEH_MethodDelegatedForEventHandlingChange(),
new DMC_DelegatedMethodChange(),
//new EOC_EqualityOperatorChange(),
new EMM_ModiferMethodChange(),
new EAM_AccessorMethodChange(),
new EHC_ExceptionHandlingChange(),
new EHR_ExceptionHandlerRemoval(),
new EXS_ExceptionSwallowing(),
new ISD_BaseKeywordDeletion(),
new JID_FieldInitializationDeletion(),
new JTD_ThisKeywordDeletion(),
// new RFI_ReferencingFaultInsertion(),
new PRV_ReferenceAssignmentChange(),
new MCI_MemberCallFromAnotherInheritedClass(),
// new NullInsertion(),
};
}
protected AbstractGeneticAlgorithm(
IProblem <T> problem,
int populationSize,
ISelectionOperator <T> selectionOperator,
ICrossoverOperator <T> crossoverOperator,
IMutationOperator <T> mutationOperator,
ITerminationCondition terminationCondition)
{
_problem = problem;
_populationSize = populationSize;
_selectionOperator = selectionOperator;
_crossoverOperator = crossoverOperator;
_mutationOperator = mutationOperator;
_terminationCondition = terminationCondition;
CurrentGeneration = 1;
EvolutionTime = TimeSpan.Zero;
_population = CreateInitialPopulation();
_population = EvaluatePopulation(_population);
}
public Population(PopulationSettings settings, ICrossoverOperator crossoverOperator, ISelectionOperator selectionOperator, IMutationOperator mutationOperator, Func <Individual> createIndividualDelegate)
{
_ = settings ?? throw new ArgumentNullException(nameof(settings));
_mutationRate = settings.MutationRate;
_matingPoolSize = settings.MatingPoolSize;
_populationSize = settings.PopulationSize;
_offspringSize = settings.OffspringSize;
_generationsCount = settings.GenerationsCount;
_crossoverOperator = crossoverOperator;
_selectionOperator = selectionOperator;
_mutationOperator = mutationOperator;
MatingPool = new List <Individual>();
Individuals = new List <Individual>();
for (int i = 0; i < _populationSize; i++)
{
var individual = createIndividualDelegate.Invoke();
Individuals.Add(individual);
}
}
public static void ChangeOperator(IMutationOperator mOperator)
{
mutationOperator = mOperator;
}
public static IEnumerable <TChromosome> Mutate <TChromosome, TGene>(this IEnumerable <TChromosome> chromosomes,
IMutationOperator <TChromosome, TGene> mutationOperator, double probability)
where TChromosome : IChromosome <TChromosome, TGene> where TGene : IGene <TGene>
{
return(chromosomes.Select(c => mutationOperator.Apply(c, probability)));
}
public OperatorNode(PackageNode parent, IMutationOperator mutationOperator)
: base(mutationOperator.Info.Id + " - " + mutationOperator.Info.Name)
{
Operator = mutationOperator;
Parent = parent;
}
public async Task <MutationResult> ExecuteMutation(Mutant mutant, CciModuleSource moduleSource, CciModuleSource moduleSource2)
{
/*var type = new TypeIdentifier((INamedTypeDefinition) mutant.MutationTarget.ProcessingContext.Type.Object);
* var type2 = new TypeIdentifier((INamedTypeDefinition)mutant.MutationTarget2.ProcessingContext.Type.Object);//
* var method = new MethodIdentifier((IMethodDefinition) mutant.MutationTarget.ProcessingContext.Method.Object);
* var method2 = new MethodIdentifier((IMethodDefinition)mutant._mutationTarget2.ProcessingContext.Method.Object); //
* var filter = new MutationFilter(type.InList(), method.InList());
* var filter2 = new MutationFilter(type2.InList(), method2.InList());//
*/
//_log.Debug("ExecuteMutation of: " + type+" - " +method );
//_log.Debug("ExecuteMutation of: " + type + " - " + method + " + " + method2);
IMutationOperator mutationOperator = mutant.MutationTarget.OperatorId == null ? new IdentityOperator() :
_mutOperators.Single(m => mutant.MutationTarget.OperatorId == m.Info.Id);
IMutationOperator mutationOperator2 = mutant._mutationTargets[0].OperatorId == null ? new IdentityOperator() :
_mutOperators.Single(m => mutant._mutationTargets[0].OperatorId == m.Info.Id);
var cci = moduleSource;
try
{
//_log.Info("Execute mutation of " + mutant.MutationTarget + " contained in " + mutant.MutationTarget.MethodRaw + " modules. ");
_log.Info("Execute mutation of " + mutant.MutationTarget + " contained in " + mutant.MutationTarget.MethodRaw + " modules and " + mutant._mutationTargets[0] + " contained in " + mutant._mutationTargets[0].MethodRaw + " modules.");
var mutatedModules = new List <IModuleInfo>();
var module = moduleSource.Modules.Single();
List <MutationTarget> mutationTargets = new List <MutationTarget>();
mutationTargets.Add(mutant.MutationTarget);
mutationTargets.Add(mutant._mutationTargets[0]);
List <MutationTarget> sharedtargets = new List <MutationTarget>();
foreach (var element in _sharedTargets.GetValues(mutationOperator, returnEmptySet: true))
{
sharedtargets.Add(element);
}
foreach (var element in _sharedTargets.GetValues(mutationOperator2, returnEmptySet: true))
{
sharedtargets.Add(element);
}
var visitorBack = new VisualCodeVisitorBack(mutationTargets,
sharedtargets,
module.Module, mutationOperator.Info.Id + mutationOperator2.Info.Id);
var traverser2 = new VisualCodeTraverser(_filter, visitorBack, moduleSource);
traverser2.Traverse(module.Module);
visitorBack.PostProcess();
var operatorCodeRewriter = mutationOperator.CreateRewriter();
var rewriter = new VisualCodeRewriter(cci.Host, visitorBack.TargetAstObjects,
visitorBack.SharedAstObjects, _filter, operatorCodeRewriter, traverser2);
operatorCodeRewriter.MutationTarget =
new UserMutationTarget(mutant.MutationTarget.Variant.Signature, mutant.MutationTarget.Variant.AstObjects);
operatorCodeRewriter.NameTable = cci.Host.NameTable;
operatorCodeRewriter.Host = cci.Host;
operatorCodeRewriter.Module = module.Module;
operatorCodeRewriter.OperatorUtils = _operatorUtils;
operatorCodeRewriter.Initialize();
/*var operatorCodeRewriter2 = mutationOperator2.CreateRewriter();//
* var rewriter2 = new VisualCodeRewriter(cci.Host, visitorBack.TargetAstObjects,
* visitorBack.SharedAstObjects, _filter, operatorCodeRewriter2, traverser2);//
*
* operatorCodeRewriter2.MutationTarget =
* new UserMutationTarget(mutant._mutationTarget2.Variant.Signature, mutant.MutationTarget2.Variant.AstObjects);//
*
* operatorCodeRewriter2.NameTable = cci.Host.NameTable;
* operatorCodeRewriter2.Host = cci.Host;
* operatorCodeRewriter2.Module = module.Module;
* operatorCodeRewriter2.OperatorUtils = _operatorUtils;
* operatorCodeRewriter2.Initialize();
*/
var rewrittenModule = rewriter.Rewrite(module.Module);
//var rewrittenModule2 = rewriter2.Rewrite(module.Module);//
rewriter.CheckForUnfoundObjects();
//rewriter2.CheckForUnfoundObjects();//
//2nd mutation
/*IMutationOperator mutationOperator2 = mutant._mutationTarget2.OperatorId == null ? new IdentityOperator() :
* _mutOperators.Single(m => mutant._mutationTarget2.OperatorId == m.Info.Id); //
* var cci2 = moduleSource2;
* var module2 = moduleSource2.Modules.Single();//
* var visitorBack2 = new VisualCodeVisitorBack(mutant.MutationTarget2.InList(),
* _sharedTargets.GetValues(mutationOperator2, returnEmptySet: true),
* module2.Module, mutationOperator2.Info.Id); //
*
* var traverser22 = new VisualCodeTraverser(_filter, visitorBack2, moduleSource2);//
* traverser22.Traverse(module2.Module);//
* visitorBack2.PostProcess();//
* var operatorCodeRewriter2 = mutationOperator2.CreateRewriter();//
* var rewriter2 = new VisualCodeRewriter(cci2.Host, visitorBack2.TargetAstObjects,
* visitorBack2.SharedAstObjects, _filter, operatorCodeRewriter2, traverser22);//
*
* operatorCodeRewriter2.MutationTarget =
* new UserMutationTarget(mutant._mutationTarget2.Variant.Signature, mutant.MutationTarget2.Variant.AstObjects);//
*
* operatorCodeRewriter2.NameTable = cci2.Host.NameTable;
* operatorCodeRewriter2.Host = cci2.Host;
* operatorCodeRewriter2.Module = module2.Module;
* operatorCodeRewriter2.OperatorUtils = _operatorUtils;
* operatorCodeRewriter2.Initialize();
*
* var rewrittenModule2 = rewriter2.Rewrite(module2.Module);//
* rewriter2.CheckForUnfoundObjects();//
*/
mutant.MutationTarget.Variant.AstObjects = null; //TODO: avoiding leaking memory. refactor
mutant._mutationTargets[0].Variant.AstObjects = null; //TODO: avoiding leaking memory. refactor
mutatedModules.Add(new ModuleInfo(rewrittenModule, ""));
//mutatedModules.Add(new ModuleInfo(rewrittenModule2, ""));//
//List<ICciModuleSource> cci = new List<ICciModuleSource>();
//cci.Add(cci1);
//cci.Add(cci2);
List <IMethodDefinition> methodsMutated = new List <IMethodDefinition>();
methodsMutated.Add(mutant._mutationTargets[0].MethodMutated);
var result = new MutationResult(mutant, cci, null, mutant.MutationTarget.MethodMutated, methodsMutated);
mutant.MutationTarget.MethodMutated = null; //TODO: avoiding leaking memory. refactor
mutant._mutationTargets[0].MethodMutated = null; //TODO: avoiding leaking memory. refactor
return(result);
}
catch (Exception e)
{
throw new MutationException("CreateMutants failed on operator: {0}.".Formatted(mutationOperator.Info.Name), e);
}
}
public static OptimiserBuilder GetBuilder(DecisionSpace problemSpace,
AvailableOperators.ParentSelector parentSelection,
AvailableOperators.RecombinationOperator recombination,
AvailableOperators.MutationOperators mutation,
AvailableOperators.ReinsertionOperators reinsertion,
int?populationSize = null)
{
var hyps = EvolutionaryAlgorithmHyperParameters.GetDefaultHyperParameters();
if (populationSize != null)
{
hyps.UpdateHyperParameterValue(
EvolutionaryAlgorithmHyperParameters.Population_Size, populationSize);
}
var population = new Population(
hyps.GetHyperParameterValue <int>(EvolutionaryAlgorithmHyperParameters.Population_Size));
IParentSelectionOperator parentSelector;
switch (parentSelection)
{
case AvailableOperators.ParentSelector.Tournament:
parentSelector = new ParentSelectionTournament(
20,
false);
break;
case AvailableOperators.ParentSelector.Greedy:
parentSelector = new ParentSelectionGreedy();
break;
case AvailableOperators.ParentSelector.Random:
parentSelector = new ParentSelectionRandom();
break;
case AvailableOperators.ParentSelector.Roulette:
parentSelector = new ParentSelectionRoulette(
false);
break;
default:
throw new NotImplementedException();
}
IRecombinationOperator recombinationOperator;
hyps.UpdateHyperParameterValue(EvolutionaryAlgorithmHyperParameters.Number_Of_Parents, 2);
switch (recombination)
{
case AvailableOperators.RecombinationOperator.MultiPoint:
recombinationOperator = new CrossoverMultiPoint(
2);
break;
case AvailableOperators.RecombinationOperator.ArithmeticTwoParentWeighted:
recombinationOperator = new CrossoverArithmeticWeighted(
false,
0.5);
break;
case AvailableOperators.RecombinationOperator.Sbx:
recombinationOperator = new CrossoverSimulatedBinary(
2);
break;
case AvailableOperators.RecombinationOperator.SbxSa2:
recombinationOperator = new CrossoverSimulatedBinarySelfAdaptive2(
population, 2);
break;
case AvailableOperators.RecombinationOperator.ArithmeticMultiParent:
recombinationOperator = new CrossoverArithmeticMultiParent();
hyps.UpdateHyperParameterValue(
EvolutionaryAlgorithmHyperParameters.Number_Of_Parents,
4);
break;
case AvailableOperators.RecombinationOperator.Uniform:
recombinationOperator = new CrossoverUniform(
0.5);
break;
case AvailableOperators.RecombinationOperator.Pcx:
recombinationOperator = new RecombinationParentCentric(
0.1,
0.1);
hyps.UpdateHyperParameterValue(
EvolutionaryAlgorithmHyperParameters.Number_Of_Parents,
6);
break;
default:
throw new NotImplementedException();
}
IMutationOperator mutationOperator;
switch (mutation)
{
case AvailableOperators.MutationOperators.AddRandomNumber:
mutationOperator = new MutationAddRandomNumber(
0.1,
0.1,
1);
break;
case AvailableOperators.MutationOperators.RandomSwap:
mutationOperator = new MutationRandomSwap(
0.1);
break;
case AvailableOperators.MutationOperators.ReplaceWithRandomNumber:
mutationOperator = new MutationReplaceWithRandomNumber(
0.1,
1);
break;
case AvailableOperators.MutationOperators.None:
mutationOperator = new MutationReplaceWithRandomNumber(
0, 1);
break;
default:
throw new NotImplementedException();
}
IReinsertionOperator reinsertionOperator;
switch (reinsertion)
{
case AvailableOperators.ReinsertionOperators.ReplaceWorst:
reinsertionOperator = new ReinsertionReplaceWorst();
break;
case AvailableOperators.ReinsertionOperators.ReplaceRandom:
reinsertionOperator = new ReinsertionReplaceRandom();
break;
default:
throw new NotImplementedException();
}
return(new EvolutionaryAlgorithmBuilderContinuousSO(population, problemSpace, hyps,
parentSelector, recombinationOperator, mutationOperator, reinsertionOperator));
}
public OperatorNode(PackageNode parent, IMutationOperator mutationOperator)
: base(mutationOperator.Info.Id+" - "+ mutationOperator.Info.Name)
{
Operator = mutationOperator;
Parent = parent;
}