source: branches/TerminationCriteria/HeuristicLab.Termination/3.3/SingleObjectiveQualityTerminator.cs @ 12410

Last change on this file since 12410 was 12410, checked in by pfleck, 4 years ago

#2027

  • Added IThresholdTerminator interface for more flexibility. The ThresholdTerminatorView now uses the interface instead of a concrete terminator.
  • Added MaximumIterationsTerminator and SingleObjectiveQualityTerminator as common used Terminators.
File size: 1.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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 HeuristicLab.Core;
23using HeuristicLab.Data;
24using HeuristicLab.Optimization;
25
26namespace HeuristicLab.Termination {
27  [Item("SingleObjectiveQualityTerminator", "")]
28  public class SingleObjectiveQualityTerminator : ComparisonTerminator<DoubleValue> {
29    public SingleObjectiveQualityTerminator() {
30      Name = "Quality";
31    }
32
33    public void Parameterize(IParameter qualityParameter, ISingleObjectiveHeuristicOptimizationProblem problem) {
34      ComparisonValueParameter.ActualName = qualityParameter.Name;
35      if (problem != null) {
36        var maximizationParameter = (IValueParameter<BoolValue>)problem.MaximizationParameter;
37        if (maximizationParameter != null) {
38          bool maximization = maximizationParameter.Value.Value;
39          Comparison = maximization ? ComparisonType.Less : ComparisonType.Greater;
40          Threshold.Value = maximization ? double.MaxValue : double.MinValue;
41        }
42      }
43    }
44  }
45}
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