| 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2010 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 HeuristicLab.Core;
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| 23 | using HeuristicLab.Data;
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| 24 | using HeuristicLab.Optimization;
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| 25 | using HeuristicLab.Parameters;
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| 26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 27 |
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| 28 | namespace HeuristicLab.Selection {
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| 29 | [Item("RandomReplacer", "Replaces some randomly selected sub-scopes of the remaining scope with all those (or the best if there are more) from the selected scope.")]
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| 30 | [StorableClass]
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| 31 | public sealed class RandomReplacer : Replacer, IStochasticOperator, ISingleObjectiveReplacer {
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| 32 | public override bool CanChangeName {
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| 33 | get { return false; }
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| 34 | }
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| 35 | public override bool CanChangeDescription {
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| 36 | get { return false; }
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| 37 | }
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| 38 |
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| 39 | public ILookupParameter<ItemArray<DoubleValue>> QualityParameter {
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| 40 | get { return (ILookupParameter<ItemArray<DoubleValue>>)Parameters["Quality"]; }
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| 41 | }
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| 42 | public IValueLookupParameter<BoolValue> MaximizationParameter {
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| 43 | get { return (IValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
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| 44 | }
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| 45 | public ILookupParameter<IRandom> RandomParameter {
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| 46 | get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
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| 47 | }
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| 48 |
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| 49 | [StorableConstructor]
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| 50 | private RandomReplacer(bool deserializing) : base(deserializing) { }
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| 51 | public RandomReplacer()
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| 52 | : base() {
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| 53 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The quality of a solution."));
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| 54 | Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "True if the problem is a maximization problem, otherwise false."));
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| 55 | Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator to use."));
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| 56 |
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| 57 | RandomSelector randomSelector = new RandomSelector();
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| 58 | randomSelector.RandomParameter.ActualName = RandomParameter.Name;
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| 59 | ReplacedSelectorParameter.Value = randomSelector;
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| 60 | BestSelector bestSelector = new BestSelector();
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| 61 | bestSelector.MaximizationParameter.ActualName = MaximizationParameter.Name;
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| 62 | bestSelector.QualityParameter.ActualName = QualityParameter.Name;
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| 63 | SelectedSelectorParameter.Value = bestSelector;
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| 64 | }
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| 65 | }
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| 66 | }
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