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source: branches/2521_ProblemRefactoring/HeuristicLab.Problems.Binary/3.3/OneMaxProblem.cs @ 17567

Last change on this file since 17567 was 17567, checked in by abeham, 4 years ago

#2521: work in progress

File size: 2.3 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 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.Linq;
23using System.Threading;
24using HEAL.Attic;
25using HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Encodings.BinaryVectorEncoding;
28using HeuristicLab.Optimization;
29
30namespace HeuristicLab.Problems.Binary {
31  [Item("One Max Problem", "Represents a problem whose objective is to maximize the number of true values.")]
32  [Creatable(CreatableAttribute.Categories.CombinatorialProblems, Priority = 210)]
33  [StorableType("A290ADDE-33F5-4607-ABC0-19349CD0FBF1")]
34  public class OneMaxProblem : BinaryVectorProblem {
35
36    public new int Dimension {
37      get { return base.Dimension; }
38      set { DimensionRefParameter.Value.Value = value; }
39    }
40
41    public OneMaxProblem() : base() {
42      Maximization = true;
43      Dimension = 10;
44      BestKnownQuality = Dimension;
45    }
46
47    public override ISingleObjectiveEvaluationResult Evaluate(BinaryVector vector, IRandom random, CancellationToken cancellationToken) {
48      var quality = vector.Count(b => b);
49      return new SingleObjectiveEvaluationResult(quality);
50    }
51
52    [StorableConstructor]
53    protected OneMaxProblem(StorableConstructorFlag _) : base(_) { }
54    protected OneMaxProblem(OneMaxProblem original, Cloner cloner) : base(original, cloner) { }
55    public override IDeepCloneable Clone(Cloner cloner) {
56      return new OneMaxProblem(this, cloner);
57    }
58
59    protected override void DimensionOnChanged() {
60      base.DimensionOnChanged();
61      BestKnownQuality = Dimension;
62    }
63  }
64}
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