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source: trunk/sources/HeuristicLab.Problems.TestFunctions.SingleObjective/3.3/SingleObjectiveTestFunction.cs @ 3150

Last change on this file since 3150 was 3150, checked in by abeham, 14 years ago

Added first version of single objective test functions problem #934

File size: 12.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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 System;
23using System.Collections.Generic;
24using System.Collections.ObjectModel;
25using System.Drawing;
26using System.Linq;
27using HeuristicLab.Common;
28using HeuristicLab.Core;
29using HeuristicLab.Data;
30using HeuristicLab.Encodings.RealVectorEncoding;
31using HeuristicLab.Optimization;
32using HeuristicLab.Parameters;
33using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
34using HeuristicLab.PluginInfrastructure;
35
36namespace HeuristicLab.Problems.TestFunctions.SingleObjective {
37  [Item("SingleObjective TestFunction", "Test function with real valued inputs and a single objective.")]
38  [StorableClass]
39  [Creatable("Problems")]
40  public sealed class SingleObjectiveTestFunction : ParameterizedNamedItem, ISingleObjectiveProblem {
41    public override Image ItemImage {
42      get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Type; }
43    }
44
45    #region Parameter Properties
46    public ValueParameter<BoolValue> MaximizationParameter {
47      get { return (ValueParameter<BoolValue>)Parameters["Maximization"]; }
48    }
49    IParameter ISingleObjectiveProblem.MaximizationParameter {
50      get { return MaximizationParameter; }
51    }
52    public ValueParameter<DoubleMatrix> BoundsParameter {
53      get { return (ValueParameter<DoubleMatrix>)Parameters["Bounds"]; }
54    }
55    public ValueParameter<IntValue> ProblemSizeParameter {
56      get { return (ValueParameter<IntValue>)Parameters["ProblemSize"]; }
57    }
58    public ValueParameter<IRealVectorCreator> SolutionCreatorParameter {
59      get { return (ValueParameter<IRealVectorCreator>)Parameters["SolutionCreator"]; }
60    }
61    IParameter IProblem.SolutionCreatorParameter {
62      get { return SolutionCreatorParameter; }
63    }
64    public ValueParameter<ISingleObjectiveTestFunctionEvaluator> EvaluatorParameter {
65      get { return (ValueParameter<ISingleObjectiveTestFunctionEvaluator>)Parameters["Evaluator"]; }
66    }
67    IParameter IProblem.EvaluatorParameter {
68      get { return EvaluatorParameter; }
69    }
70    public OptionalValueParameter<ISingleObjectiveTestFunctionSolutionsVisualizer> VisualizerParameter {
71      get { return (OptionalValueParameter<ISingleObjectiveTestFunctionSolutionsVisualizer>)Parameters["Visualizer"]; }
72    }
73    IParameter IProblem.VisualizerParameter {
74      get { return VisualizerParameter; }
75    }
76    public OptionalValueParameter<DoubleValue> BestKnownQualityParameter {
77      get { return (OptionalValueParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
78    }
79    IParameter ISingleObjectiveProblem.BestKnownQualityParameter {
80      get { return BestKnownQualityParameter; }
81    }
82    #endregion
83
84    #region Properties
85    public DoubleMatrix Bounds {
86      get { return BoundsParameter.Value; }
87      set { BoundsParameter.Value = value; }
88    }
89    public IntValue ProblemSize {
90      get { return ProblemSizeParameter.Value; }
91      set { ProblemSizeParameter.Value = value; }
92    }
93    public IRealVectorCreator SolutionCreator {
94      get { return SolutionCreatorParameter.Value; }
95      set { SolutionCreatorParameter.Value = value; }
96    }
97    ISolutionCreator IProblem.SolutionCreator {
98      get { return SolutionCreatorParameter.Value; }
99    }
100    public ISingleObjectiveTestFunctionEvaluator Evaluator {
101      get { return EvaluatorParameter.Value; }
102      set { EvaluatorParameter.Value = value; }
103    }
104    ISingleObjectiveEvaluator ISingleObjectiveProblem.Evaluator {
105      get { return EvaluatorParameter.Value; }
106    }
107    IEvaluator IProblem.Evaluator {
108      get { return EvaluatorParameter.Value; }
109    }
110    public ISingleObjectiveTestFunctionSolutionsVisualizer Visualizer {
111      get { return VisualizerParameter.Value; }
112      set { VisualizerParameter.Value = value; }
113    }
114    ISolutionsVisualizer IProblem.Visualizer {
115      get { return VisualizerParameter.Value; }
116    }
117    public DoubleValue BestKnownQuality {
118      get { return BestKnownQualityParameter.Value; }
119      set { BestKnownQualityParameter.Value = value; }
120    }
121    private List<IRealVectorOperator> operators;
122    public IEnumerable<IOperator> Operators {
123      get { return operators.Cast<IOperator>(); }
124    }
125    #endregion
126
127    [StorableConstructor]
128    private SingleObjectiveTestFunction(bool deserializing) : base() { }
129    public SingleObjectiveTestFunction()
130      : base() {
131      UniformRandomRealVectorCreator creator = new UniformRandomRealVectorCreator();
132      AckleyEvaluator evaluator = new AckleyEvaluator();
133
134      Parameters.Add(new ValueParameter<BoolValue>("Maximization", "Set to false as most test functions are minimization problems.", new BoolValue(evaluator.Maximization)));
135      Parameters.Add(new ValueParameter<DoubleMatrix>("Bounds", "The lower and upper bounds in each dimension.", evaluator.Bounds));
136      Parameters.Add(new ValueParameter<IntValue>("ProblemSize", "The dimension of the problem.", new IntValue(2)));
137      Parameters.Add(new ValueParameter<IRealVectorCreator>("SolutionCreator", "The operator which should be used to create new TSP solutions.", creator));
138      Parameters.Add(new ValueParameter<ISingleObjectiveTestFunctionEvaluator>("Evaluator", "The operator which should be used to evaluate TSP solutions.", evaluator));
139      Parameters.Add(new OptionalValueParameter<ISingleObjectiveTestFunctionSolutionsVisualizer>("Visualizer", "The operator which should be used to visualize TSP solutions."));
140      Parameters.Add(new OptionalValueParameter<DoubleValue>("BestKnownQuality", "The quality of the best known solution of this TSP instance.", new DoubleValue(evaluator.BestKnownQuality)));
141
142      creator.RealVectorParameter.ActualName = "Point";
143      ParameterizeSolutionCreator();
144      ParameterizeEvaluator();
145      ParameterizeVisualizer();
146
147      Initialize();
148    }
149
150    public override IDeepCloneable Clone(Cloner cloner) {
151      SingleObjectiveTestFunction clone = (SingleObjectiveTestFunction)base.Clone(cloner);
152      clone.Initialize();
153      return clone;
154    }
155
156    #region Events
157    public event EventHandler SolutionCreatorChanged;
158    private void OnSolutionCreatorChanged() {
159      if (SolutionCreatorChanged != null)
160        SolutionCreatorChanged(this, EventArgs.Empty);
161    }
162    public event EventHandler EvaluatorChanged;
163    private void OnEvaluatorChanged() {
164      if (EvaluatorChanged != null)
165        EvaluatorChanged(this, EventArgs.Empty);
166    }
167    public event EventHandler VisualizerChanged;
168    private void OnVisualizerChanged() {
169      if (VisualizerChanged != null)
170        VisualizerChanged(this, EventArgs.Empty);
171    }
172    public event EventHandler OperatorsChanged;
173    private void OnOperatorsChanged() {
174      if (OperatorsChanged != null)
175        OperatorsChanged(this, EventArgs.Empty);
176    }
177    private void ProblemSizeParameter_ValueChanged(object sender, EventArgs e) {
178      ProblemSize.ValueChanged += new EventHandler(ProblemSize_ValueChanged);
179      ProblemSize_ValueChanged(null, EventArgs.Empty);
180    }
181    private void ProblemSize_ValueChanged(object sender, EventArgs e) {
182      ParameterizeSolutionCreator();
183    }
184    private void SolutionCreatorParameter_ValueChanged(object sender, EventArgs e) {
185      ParameterizeSolutionCreator();
186      SolutionCreator_RealVectorParameter_ActualNameChanged(null, EventArgs.Empty);
187    }
188    private void SolutionCreator_RealVectorParameter_ActualNameChanged(object sender, EventArgs e) {
189      ParameterizeEvaluator();
190      ParameterizeOperators();
191      ParameterizeVisualizer();
192    }
193    private void EvaluatorParameter_ValueChanged(object sender, EventArgs e) {
194      ParameterizeEvaluator();
195      Evaluator_QualityParameter_ActualNameChanged(null, EventArgs.Empty);
196    }
197    private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
198      ParameterizeOperators();
199    }
200    private void VisualizerParameter_ValueChanged(object sender, EventArgs e) {
201      ParameterizeVisualizer();
202    }
203    #endregion
204
205    #region Helpers
206    [StorableHook(HookType.AfterDeserialization)]
207    private void Initialize() {
208      InitializeOperators();
209      ProblemSizeParameter.ValueChanged += new EventHandler(ProblemSizeParameter_ValueChanged);
210      ProblemSize.ValueChanged += new EventHandler(ProblemSize_ValueChanged);
211      SolutionCreatorParameter.ValueChanged += new EventHandler(SolutionCreatorParameter_ValueChanged);
212      SolutionCreator.RealVectorParameter.ActualNameChanged += new EventHandler(SolutionCreator_RealVectorParameter_ActualNameChanged);
213      EvaluatorParameter.ValueChanged += new EventHandler(EvaluatorParameter_ValueChanged);
214      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
215      VisualizerParameter.ValueChanged += new EventHandler(VisualizerParameter_ValueChanged);
216    }
217
218    private void InitializeOperators() {
219      operators = new List<IRealVectorOperator>();
220      if (ApplicationManager.Manager != null) {
221        operators.AddRange(ApplicationManager.Manager.GetInstances<IRealVectorOperator>());
222        ParameterizeOperators();
223      }
224      //InitializeMoveGenerators();
225    }
226    /*private void InitializeMoveGenerators() {
227      foreach (ITwoOptPermutationMoveOperator op in Operators.OfType<ITwoOptPermutationMoveOperator>()) {
228        if (op is IMoveGenerator) {
229          op.TwoOptMoveParameter.ActualNameChanged += new EventHandler(MoveGenerator_TwoOptMoveParameter_ActualNameChanged);
230        }
231      }
232      foreach (IThreeOptPermutationMoveOperator op in Operators.OfType<IThreeOptPermutationMoveOperator>()) {
233        if (op is IMoveGenerator) {
234          op.ThreeOptMoveParameter.ActualNameChanged += new EventHandler(MoveGenerator_ThreeOptMoveParameter_ActualNameChanged);
235        }
236      }
237    }*/
238    private void ParameterizeSolutionCreator() {
239      SolutionCreator.LengthParameter.Value = new IntValue(ProblemSize.Value);
240    }
241    private void ParameterizeEvaluator() {
242      Evaluator.PointParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
243    }
244    private void ParameterizeVisualizer() {
245      if (Visualizer != null) {
246        Visualizer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
247        Visualizer.PointParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
248      }
249    }
250    private void ParameterizeOperators() {
251      foreach (IRealVectorCrossover op in Operators.OfType<IRealVectorCrossover>()) {
252        op.ParentsParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
253        op.ChildParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
254      }
255      foreach (IRealVectorManipulator op in Operators.OfType<IRealVectorManipulator>()) {
256        op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
257      }
258      /*foreach (IPermutationMoveOperator op in Operators.OfType<IPermutationMoveOperator>()) {
259        op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
260      }
261      foreach (ITSPPathMoveEvaluator op in Operators.OfType<ITSPPathMoveEvaluator>()) {
262        op.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
263        op.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
264        op.UseDistanceMatrixParameter.ActualName = UseDistanceMatrixParameter.Name;
265      }*/
266    }
267    #endregion
268  }
269}
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