source: branches/2520_PersistenceReintegration/HeuristicLab.Problems.TestFunctions.MultiObjective/3.3/TestFunctions/ZDT/ZDT.cs @ 16453

Last change on this file since 16453 was 16453, checked in by jkarder, 2 years ago

#2520: updated year of copyrights

File size: 2.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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
21using System;
22using System.Collections.Generic;
23using HeuristicLab.Common;
24using HeuristicLab.Encodings.RealVectorEncoding;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Problems.TestFunctions.MultiObjective {
28  [StorableClass]
29  public abstract class ZDT : MultiObjectiveTestFunction {
30    protected override IEnumerable<double[]> GetOptimalParetoFront(int objectives) {
31      return ParetoFrontStore.GetParetoFront("ZDT.ParetoFronts." + this.ItemName);
32    }
33
34    protected override double[,] GetBounds(int objectives) {
35      return new double[,] { { 0, 1 } };
36    }
37
38    protected override bool[] GetMaximization(int objectives) {
39      return new bool[objectives];
40    }
41
42    protected override double[] GetReferencePoint(int objecitives) {
43      return new double[] { 11.0, 11.0 };
44    }
45
46    protected override double GetBestKnownHypervolume(int objectives) {
47      return -1;
48    }
49
50    [StorableConstructor]
51    protected ZDT(bool deserializing) : base(deserializing) { }
52    protected ZDT(MultiObjectiveTestFunction original, Cloner cloner)
53      : base(original, cloner) {
54    }
55    protected ZDT() : base(minimumObjectives: 2, maximumObjectives: 2, minimumSolutionLength: 1, maximumSolutionLength: int.MaxValue) { }
56
57    public override double[] Evaluate(RealVector r, int objectives) {
58      if (objectives != 2) throw new ArgumentException("ZDT Problems must always have 2 objectives");
59      return Evaluate(r);
60    }
61
62    public abstract double[] Evaluate(RealVector r);
63  }
64}
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