[18029] | 1 | using System.Linq;
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| 2 | using System.Threading;
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| 3 | using System.Threading.Tasks;
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| 4 | using HEAL.Attic;
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| 5 | using HeuristicLab.Common;
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| 6 | using HeuristicLab.Core;
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| 7 | using HeuristicLab.Optimization;
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| 8 |
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| 9 | namespace HeuristicLab.Problems.Modifiers {
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| 10 | [StorableType("3985D750-03D4-4842-A34D-A352BED95190")]
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| 11 | public sealed class MultiObjectiveBasicProblemEvaluation : BasicAlgorithm {
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| 12 | public override bool SupportsPause => false;
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| 13 |
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| 14 | public new MultiObjectiveBasicProblem<IEncoding> Problem {
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| 15 | get => (MultiObjectiveBasicProblem<IEncoding>)base.Problem;
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| 16 | private set => base.Problem = value;
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| 17 | }
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| 18 |
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| 19 | [Storable]
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| 20 | public IScope IndividualScope { get; private set; }
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| 21 | [Storable]
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| 22 | public IRandom Random { get; private set; }
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| 23 | [Storable]
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| 24 | public double[] Qualities { get; private set; }
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| 25 |
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| 26 | #region Constructors & Cloning
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| 27 | [StorableConstructor]
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| 28 | private MultiObjectiveBasicProblemEvaluation(StorableConstructorFlag _) : base(_) { }
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| 29 | private MultiObjectiveBasicProblemEvaluation(MultiObjectiveBasicProblemEvaluation original, Cloner cloner) : base(original, cloner) {
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| 30 | IndividualScope = cloner.Clone(original.IndividualScope);
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| 31 | Random = cloner.Clone(original.Random);
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| 32 | Qualities = (double[])original.Qualities.Clone();
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| 33 | }
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| 34 | public MultiObjectiveBasicProblemEvaluation(MultiObjectiveBasicProblem<IEncoding> problem, IScope individualScope, IRandom random) {
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| 35 | Problem = problem;
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| 36 | IndividualScope = individualScope;
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| 37 | Random = random;
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| 38 | Qualities = Enumerable.Repeat(double.NaN, problem.Maximization.Length).ToArray();
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| 39 | }
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| 40 |
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| 41 | public override IDeepCloneable Clone(Cloner cloner) {
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| 42 | return new MultiObjectiveBasicProblemEvaluation(this, cloner);
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| 43 | }
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| 44 | #endregion
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| 45 |
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| 46 | protected override void Run(CancellationToken cancellationToken) {
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| 47 | var singleEncoding = Problem.Encoding;
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| 48 | var individual = Problem.Encoding is MultiEncoding multiEncoding
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| 49 | ? (Individual)new MultiEncodingIndividual(multiEncoding, IndividualScope)
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| 50 | : (Individual)new SingleEncodingIndividual(singleEncoding, IndividualScope);
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| 51 | var evaluationTask = Task.Run(() => Problem.Evaluate(individual, Random), cancellationToken);
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| 52 | evaluationTask.Wait(cancellationToken);
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| 53 | Qualities = evaluationTask.Result;
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| 54 | }
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| 55 | }
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| 56 | }
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