[14450] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System.Threading;
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| 23 | using HeuristicLab.Algorithms.MemPR.Interfaces;
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| 24 | using HeuristicLab.Algorithms.MemPR.Util;
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| 25 | using HeuristicLab.Common;
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| 26 | using HeuristicLab.Core;
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| 27 | using HeuristicLab.Encodings.PermutationEncoding;
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| 28 | using HeuristicLab.Optimization;
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| 29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 30 |
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| 31 | namespace HeuristicLab.Algorithms.MemPR.Permutation.LocalSearch {
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| 32 | [Item("Exhaustive Subspace Hillclimber (permutation)", "", ExcludeGenericTypeInfo = true)]
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| 33 | [StorableClass]
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| 34 | public class ExhaustiveHillClimbSubspace<TContext> : NamedItem, ILocalSearch<TContext>
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| 35 | where TContext : ISingleSolutionHeuristicAlgorithmContext<SingleObjectiveBasicProblem<PermutationEncoding>, Encodings.PermutationEncoding.Permutation>,
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[14552] | 36 | IPermutationSubspaceContext, IEvaluationServiceContext<Encodings.PermutationEncoding.Permutation> {
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[14450] | 37 |
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| 38 | [StorableConstructor]
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| 39 | protected ExhaustiveHillClimbSubspace(bool deserializing) : base(deserializing) { }
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| 40 | protected ExhaustiveHillClimbSubspace(ExhaustiveHillClimbSubspace<TContext> original, Cloner cloner) : base(original, cloner) { }
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| 41 | public ExhaustiveHillClimbSubspace() {
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| 42 | Name = ItemName;
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| 43 | Description = ItemDescription;
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| 44 | }
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| 45 |
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| 46 | public override IDeepCloneable Clone(Cloner cloner) {
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| 47 | return new ExhaustiveHillClimbSubspace<TContext>(this, cloner);
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| 48 | }
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| 49 |
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| 50 | public void Optimize(TContext context) {
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| 51 | var quality = context.Solution.Fitness;
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| 52 | try {
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| 53 | var result = Exhaustive.HillClimb(context.Random, context.Solution.Solution, ref quality,
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[14552] | 54 | context.Problem.Maximization, context.Evaluate, CancellationToken.None, context.Subspace.Subspace);
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[14450] | 55 | context.IncrementEvaluatedSolutions(result.Item1);
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| 56 | context.Iterations = result.Item2;
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| 57 | } finally {
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| 58 | context.Solution.Fitness = quality;
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| 59 | }
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| 60 | }
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| 61 | }
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| 62 | }
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