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source: branches/2839_HiveProjectManagement/HeuristicLab.Optimization/3.3/BasicProblems/Operators/MultiObjectiveEvaluator.cs @ 16057

Last change on this file since 16057 was 16057, checked in by jkarder, 6 years ago

#2839:

File size: 2.9 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Data;
26using HeuristicLab.Operators;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29
30namespace HeuristicLab.Optimization {
31  [Item("Multi-objective Evaluator", "Calls the Evaluate method of the problem definition and writes the return value into the scope.")]
32  [StorableClass]
33  public class MultiObjectiveEvaluator : InstrumentedOperator, IMultiObjectiveEvaluationOperator, IStochasticOperator {
34
35    public ILookupParameter<IRandom> RandomParameter {
36      get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
37    }
38
39    public ILookupParameter<IEncoding> EncodingParameter {
40      get { return (ILookupParameter<IEncoding>)Parameters["Encoding"]; }
41    }
42
43    public ILookupParameter<DoubleArray> QualitiesParameter {
44      get { return (ILookupParameter<DoubleArray>)Parameters["Qualities"]; }
45    }
46
47    public Func<Individual, IRandom, double[]> EvaluateFunc { get; set; }
48
49    [StorableConstructor]
50    protected MultiObjectiveEvaluator(bool deserializing) : base(deserializing) { }
51    protected MultiObjectiveEvaluator(MultiObjectiveEvaluator original, Cloner cloner) : base(original, cloner) { }
52    public MultiObjectiveEvaluator() {
53      Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator to use."));
54      Parameters.Add(new LookupParameter<IEncoding>("Encoding", "An item that holds the problem's encoding."));
55      Parameters.Add(new LookupParameter<DoubleArray>("Qualities", "The qualities of the parameter vector."));
56    }
57
58    public override IDeepCloneable Clone(Cloner cloner) {
59      return new MultiObjectiveEvaluator(this, cloner);
60    }
61
62    public override IOperation InstrumentedApply() {
63      var random = RandomParameter.ActualValue;
64      var encoding = EncodingParameter.ActualValue;
65      var individual = encoding.GetIndividual(ExecutionContext.Scope);
66      QualitiesParameter.ActualValue = new DoubleArray(EvaluateFunc(individual, random));
67      return base.InstrumentedApply();
68    }
69  }
70}
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