source: branches/SpectralKernelForGaussianProcesses/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/General/Moves/VRPMoveEvaluator.cs @ 10479

Last change on this file since 10479 was 10479, checked in by gkronber, 6 years ago

#2124 merged all changes from trunk to prepare for trunk-reintegration

File size: 3.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 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.Parameters;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28using HeuristicLab.Problems.VehicleRouting.Interfaces;
29
30namespace HeuristicLab.Problems.VehicleRouting.Encodings.General {
31  [Item("VRPMoveEvaluator", "Evaluates a VRP move.")]
32  [StorableClass]
33  public abstract class VRPMoveEvaluator : VRPMoveOperator, ISingleObjectiveMoveEvaluator {
34    public const string MovePrefix = "Move";
35
36    public ILookupParameter<DoubleValue> QualityParameter {
37      get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
38    }
39    public ILookupParameter<DoubleValue> MoveQualityParameter {
40      get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
41    }
42    public ILookupParameter<DoubleValue> MovePenaltyParameter {
43      get { return (ILookupParameter<DoubleValue>)Parameters["MovePenalty"]; }
44    }
45
46    [StorableConstructor]
47    protected VRPMoveEvaluator(bool deserializing) : base(deserializing) { }
48
49    public VRPMoveEvaluator()
50      : base() {
51      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the solution."));
52      Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The relative quality of the move."));
53      Parameters.Add(new LookupParameter<DoubleValue>("MovePenalty", "The penalty applied to the move."));
54    }
55
56    protected VRPMoveEvaluator(VRPMoveEvaluator original, Cloner cloner)
57      : base(original, cloner) {
58    }
59
60    //helper method to evaluate an updated individual
61    protected void UpdateEvaluation(IVRPEncoding updatedTours) {
62      IVRPEvaluator evaluator = ProblemInstance.MoveEvaluator;
63
64      try {
65        this.ExecutionContext.Scope.Variables.Add(new Variable(evaluator.VRPToursParameter.ActualName,
66          updatedTours));
67
68        IAtomicOperation op = this.ExecutionContext.CreateChildOperation(evaluator);
69        op.Operator.Execute((IExecutionContext)op, CancellationToken);
70      }
71      finally {
72        this.ExecutionContext.Scope.Variables.Remove(evaluator.VRPToursParameter.ActualName);
73      }
74    }
75
76    protected abstract void EvaluateMove();
77
78    public override IOperation InstrumentedApply() {
79      EvaluateMove();
80
81      return base.InstrumentedApply();
82    }
83  }
84}
Note: See TracBrowser for help on using the repository browser.