source: branches/1614_GeneralizedQAP/HeuristicLab.Problems.GeneralizedQuadraticAssignment.Algorithms/3.3/RandomSearch/RandomSearchContext.cs @ 15698

Last change on this file since 15698 was 15698, checked in by abeham, 4 years ago

#1614: Added random search and fixed execution time counting for commercial solvers

File size: 2.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2017 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.Parameters;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment.Algorithms.RandomSearch {
28  [Item("Random Search Context", "Context for random search algorithms.")]
29  [StorableClass]
30  public sealed class RandomSearchContext : SingleSolutionContext<ISingleObjectiveSolutionScope<GQAPSolution>> {
31    [Storable]
32    private IValueParameter<GQAP> problem;
33    public GQAP Problem {
34      get { return problem.Value; }
35      set { problem.Value = value; }
36    }
37
38    [Storable]
39    private IValueParameter<GQAPSolution> bestSolution;
40    public GQAPSolution BestSolution {
41      get { return bestSolution.Value; }
42      set { bestSolution.Value = value; }
43    }
44   
45    [StorableConstructor]
46    private RandomSearchContext(bool deserializing) : base(deserializing) { }
47    private RandomSearchContext(RandomSearchContext original, Cloner cloner)
48    : base(original, cloner) {
49      problem = cloner.Clone(original.problem);
50      bestSolution = cloner.Clone(original.bestSolution);
51    }
52    public RandomSearchContext() {
53      Parameters.Add(problem = new ValueParameter<GQAP>("Problem"));
54      Parameters.Add(bestSolution = new ValueParameter<GQAPSolution>("BestFoundSolution"));
55    }
56
57    public override IDeepCloneable Clone(Cloner cloner) {
58      return new RandomSearchContext(this, cloner);
59    }
60
61    public ISingleObjectiveSolutionScope<GQAPSolution> ToScope(GQAPSolution code, double fitness = double.NaN) {
62      var name = Problem.Encoding.Name;
63      var scope = new SingleObjectiveSolutionScope<GQAPSolution>(code,
64        name + "Solution", fitness, Problem.Evaluator.QualityParameter.ActualName) {
65        Parent = Scope
66      };
67      scope.Variables.Add(new Variable(name, code.Assignment));
68      scope.Variables.Add(new Variable("Evaluation", code.Evaluation));
69      return scope;
70    }
71  }
72}
Note: See TracBrowser for help on using the repository browser.