source: branches/2520_PersistenceReintegration/HeuristicLab.Problems.TestFunctions.MultiObjective/3.3/TestFunctions/IHR/IHR.cs @ 16462

Last change on this file since 16462 was 16462, checked in by jkarder, 2 years ago

#2520: worked on reintegration of new persistence

  • added nuget references to HEAL.Fossil
  • added StorableType attributes to many classes
  • changed signature of StorableConstructors
  • removed some classes in old persistence
  • removed some unnecessary usings
File size: 2.7 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 HeuristicLab.Common;
23using HeuristicLab.Encodings.RealVectorEncoding;
24using HEAL.Fossil;
25
26namespace HeuristicLab.Problems.TestFunctions.MultiObjective {
27  [StorableType("3DBC1750-FDEA-454C-AF65-EA4337CEE823")]
28  public abstract class IHR : MultiObjectiveTestFunction {
29    protected override double[,] GetBounds(int objectives) {
30      return new double[,] { { -1, 1 } };
31    }
32
33    protected override bool[] GetMaximization(int objectives) {
34      return new bool[objectives];
35    }
36
37    protected override double[] GetReferencePoint(int objectives) {
38      double[] rp = new double[objectives];
39      for (int i = 0; i < objectives; i++) {
40        rp[i] = 11;
41      }
42      return rp;
43    }
44
45    [StorableConstructor]
46    protected IHR(StorableConstructorFlag _) : base(_) { }
47    protected IHR(IHR original, Cloner cloner) : base(original, cloner) { }
48    public IHR() : base(minimumObjectives: 2, maximumObjectives: 2, minimumSolutionLength: 2, maximumSolutionLength: int.MaxValue) { }
49
50    public override double[] Evaluate(RealVector r, int objectives) {
51      if (r.Length < objectives) {
52        throw new ArgumentException("The dimensionality of the problem(ProblemSize) must be larger than or equal to the number of objectives");
53      }
54      return new double[] { F1(r), F2(r) };
55    }
56    protected abstract double F1(RealVector y);
57    protected abstract double F2(RealVector y);
58    protected abstract double G(RealVector y);
59
60
61    protected double H(double x, RealVector r) {
62      return 1.0 / (1 + Math.Exp(-x / Math.Sqrt(r.Length)));
63    }
64    protected double HF(double x, RealVector r) {
65      double ymax = 1;
66      return Math.Abs(r[0]) <= ymax ? x : 1 + Math.Abs(r[0]);
67    }
68    protected double HG(double x) {
69      return (x * x) / (Math.Abs(x) + 0.1);
70    }
71  }
72}
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