source: branches/TerminationCriteria/HeuristicLab.Termination/3.3/SingleObjectiveQualityTerminator.cs @ 12447

Last change on this file since 12447 was 12447, checked in by pfleck, 4 years ago

#2027

  • Renamed TerminatonParameter to TerminatorParameter.
  • Renamed Comparison to ComparisonType.
File size: 2.2 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.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Data;
25using HeuristicLab.Optimization;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Termination {
29  [Item("SingleObjectiveQualityTerminator", "A termination criterion which uses a quality parameter (eg. current best quality) for termination.")]
30  [StorableClass]
31  public class SingleObjectiveQualityTerminator : ComparisonTerminator<DoubleValue> {
32    [StorableConstructor]
33    protected SingleObjectiveQualityTerminator(bool deserializing) : base(deserializing) { }
34    protected SingleObjectiveQualityTerminator(SingleObjectiveQualityTerminator original, Cloner cloner)
35      : base(original, cloner) { }
36    public SingleObjectiveQualityTerminator() { }
37
38    public void Parameterize(IParameter qualityParameter, ISingleObjectiveHeuristicOptimizationProblem problem) {
39      ComparisonValueParameter.ActualName = qualityParameter.Name;
40      if (problem == null) return;
41
42      var maximizationParameter = (IValueParameter<BoolValue>)problem.MaximizationParameter;
43      if (maximizationParameter != null) {
44        bool maximization = maximizationParameter.Value.Value;
45        ComparisonType = maximization ? ComparisonType.Less : ComparisonType.Greater;
46        Threshold.Value = maximization ? double.MaxValue : double.MinValue;
47      }
48    }
49  }
50}
Note: See TracBrowser for help on using the repository browser.