Free cookie consent management tool by TermsFeed Policy Generator

source: trunk/sources/HeuristicLab.Problems.TestFunctions/3.3/SingleObjectiveTestFunctionProblem.cs @ 6938

Last change on this file since 6938 was 6938, checked in by abeham, 13 years ago

#1663

  • Added an *Operators* parameter in Problem
  • Adapted KnapsackProblem, OnemaxProblem, SingleObjectiveTestFunctionProblem, TravelingSalesmanProblem, and VehicleRoutingProblem to derive from SingleObjectiveHeuristicOptimizationProblem<U, V>, renamed and marked old list as obsolete. Note that QuadraticAssignmentProblem, as well as the new DataAnalysisProblems already derived from that class. ArtificialAntProblem was not yet modified.
  • Added some test lists and adapted SamplesTest
  • Added plugin dependencies that the unit test was complaining about
File size: 18.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2011 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.Linq;
25using HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Data;
28using HeuristicLab.Encodings.RealVectorEncoding;
29using HeuristicLab.Optimization;
30using HeuristicLab.Parameters;
31using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
32using HeuristicLab.PluginInfrastructure;
33
34namespace HeuristicLab.Problems.TestFunctions {
35  [Item("Single Objective Test Function", "Test function with real valued inputs and a single objective.")]
36  [StorableClass]
37  [Creatable("Problems")]
38  public sealed class SingleObjectiveTestFunctionProblem : SingleObjectiveHeuristicOptimizationProblem<ISingleObjectiveTestFunctionProblemEvaluator, IRealVectorCreator>, IStorableContent {
39    public string Filename { get; set; }
40
41    [Storable]
42    private StdDevStrategyVectorCreator strategyVectorCreator;
43    [Storable]
44    private StdDevStrategyVectorCrossover strategyVectorCrossover;
45    [Storable]
46    private StdDevStrategyVectorManipulator strategyVectorManipulator;
47
48    #region Parameter Properties
49    public ValueParameter<DoubleMatrix> BoundsParameter {
50      get { return (ValueParameter<DoubleMatrix>)Parameters["Bounds"]; }
51    }
52    public ValueParameter<IntValue> ProblemSizeParameter {
53      get { return (ValueParameter<IntValue>)Parameters["ProblemSize"]; }
54    }
55    public OptionalValueParameter<RealVector> BestKnownSolutionParameter {
56      get { return (OptionalValueParameter<RealVector>)Parameters["BestKnownSolution"]; }
57    }
58    #endregion
59
60    #region Properties
61    public DoubleMatrix Bounds {
62      get { return BoundsParameter.Value; }
63      set { BoundsParameter.Value = value; }
64    }
65    public IntValue ProblemSize {
66      get { return ProblemSizeParameter.Value; }
67      set { ProblemSizeParameter.Value = value; }
68    }
69    private BestSingleObjectiveTestFunctionSolutionAnalyzer BestSingleObjectiveTestFunctionSolutionAnalyzer {
70      get { return Operators.OfType<BestSingleObjectiveTestFunctionSolutionAnalyzer>().FirstOrDefault(); }
71    }
72    #endregion
73
74    // BackwardsCompatibility3.3
75    #region Backwards compatible code, remove with 3.4
76    [Obsolete]
77    [Storable(Name = "operators")]
78    private IEnumerable<IOperator> oldOperators {
79      get { return null; }
80      set {
81        if (value != null && value.Any())
82          Operators.AddRange(value);
83      }
84    }
85    #endregion
86
87    [StorableConstructor]
88    private SingleObjectiveTestFunctionProblem(bool deserializing) : base(deserializing) { }
89    private SingleObjectiveTestFunctionProblem(SingleObjectiveTestFunctionProblem original, Cloner cloner)
90      : base(original, cloner) {
91      strategyVectorCreator = cloner.Clone(original.strategyVectorCreator);
92      strategyVectorCrossover = cloner.Clone(original.strategyVectorCrossover);
93      strategyVectorManipulator = cloner.Clone(original.strategyVectorManipulator);
94      AttachEventHandlers();
95    }
96    public SingleObjectiveTestFunctionProblem()
97      : base(new AckleyEvaluator(), new UniformRandomRealVectorCreator()) {
98      Parameters.Add(new ValueParameter<DoubleMatrix>("Bounds", "The lower and upper bounds in each dimension.", Evaluator.Bounds));
99      Parameters.Add(new ValueParameter<IntValue>("ProblemSize", "The dimension of the problem.", new IntValue(2)));
100      Parameters.Add(new OptionalValueParameter<RealVector>("BestKnownSolution", "The best known solution for this test function instance."));
101
102      strategyVectorCreator = new StdDevStrategyVectorCreator();
103      strategyVectorCreator.LengthParameter.ActualName = ProblemSizeParameter.Name;
104      strategyVectorCrossover = new StdDevStrategyVectorCrossover();
105      strategyVectorManipulator = new StdDevStrategyVectorManipulator();
106      strategyVectorManipulator.LearningRateParameter.Value = new DoubleValue(0.5);
107      strategyVectorManipulator.GeneralLearningRateParameter.Value = new DoubleValue(0.5);
108
109      SolutionCreator.RealVectorParameter.ActualName = "Point";
110      ParameterizeSolutionCreator();
111      ParameterizeEvaluator();
112
113      InitializeOperators();
114      AttachEventHandlers();
115      UpdateStrategyVectorBounds();
116    }
117
118    public override IDeepCloneable Clone(Cloner cloner) {
119      return new SingleObjectiveTestFunctionProblem(this, cloner);
120    }
121
122    private bool IsNotFieldReferenced(IOperator x) {
123      return !(x == strategyVectorCreator
124        || x == strategyVectorCrossover
125        || x == strategyVectorManipulator);
126    }
127
128    #region Events
129    protected override void OnSolutionCreatorChanged() {
130      base.OnSolutionCreatorChanged();
131      ParameterizeSolutionCreator();
132      ParameterizeAnalyzers();
133      SolutionCreator.RealVectorParameter.ActualNameChanged += new EventHandler(SolutionCreator_RealVectorParameter_ActualNameChanged);
134      SolutionCreator_RealVectorParameter_ActualNameChanged(null, EventArgs.Empty);
135    }
136    protected override void OnEvaluatorChanged() {
137      base.OnEvaluatorChanged();
138      ParameterizeEvaluator();
139      UpdateMoveEvaluators();
140      ParameterizeAnalyzers();
141      Maximization.Value = Evaluator.Maximization;
142      BoundsParameter.Value = Evaluator.Bounds;
143      if (ProblemSize.Value < Evaluator.MinimumProblemSize)
144        ProblemSize.Value = Evaluator.MinimumProblemSize;
145      else if (ProblemSize.Value > Evaluator.MaximumProblemSize)
146        ProblemSize.Value = Evaluator.MaximumProblemSize;
147      BestKnownQuality = new DoubleValue(Evaluator.BestKnownQuality);
148      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
149      Evaluator_QualityParameter_ActualNameChanged(null, EventArgs.Empty);
150      OnReset();
151    }
152    private void ProblemSizeParameter_ValueChanged(object sender, EventArgs e) {
153      ProblemSize.ValueChanged += new EventHandler(ProblemSize_ValueChanged);
154      ProblemSize_ValueChanged(null, EventArgs.Empty);
155    }
156    private void ProblemSize_ValueChanged(object sender, EventArgs e) {
157      if (ProblemSize.Value < 1) ProblemSize.Value = 1;
158      ParameterizeSolutionCreator();
159      ParameterizeEvaluator();
160      strategyVectorManipulator.GeneralLearningRateParameter.Value = new DoubleValue(1.0 / Math.Sqrt(2 * ProblemSize.Value));
161      strategyVectorManipulator.LearningRateParameter.Value = new DoubleValue(1.0 / Math.Sqrt(2 * Math.Sqrt(ProblemSize.Value)));
162      OnReset();
163    }
164    private void SolutionCreator_RealVectorParameter_ActualNameChanged(object sender, EventArgs e) {
165      ParameterizeEvaluator();
166      ParameterizeOperators();
167      ParameterizeAnalyzers();
168    }
169    private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
170      ParameterizeOperators();
171    }
172    private void BoundsParameter_ValueChanged(object sender, EventArgs e) {
173      Bounds.ToStringChanged += new EventHandler(Bounds_ToStringChanged);
174      Bounds_ToStringChanged(null, EventArgs.Empty);
175    }
176    private void Bounds_ToStringChanged(object sender, EventArgs e) {
177      if (Bounds.Columns != 2 || Bounds.Rows < 1)
178        Bounds = new DoubleMatrix(1, 2);
179      ParameterizeOperators();
180      UpdateStrategyVectorBounds();
181    }
182    private void Bounds_ItemChanged(object sender, EventArgs<int, int> e) {
183      if (e.Value2 == 0 && Bounds[e.Value, 1] <= Bounds[e.Value, 0])
184        Bounds[e.Value, 1] = Bounds[e.Value, 0] + 0.1;
185      if (e.Value2 == 1 && Bounds[e.Value, 0] >= Bounds[e.Value, 1])
186        Bounds[e.Value, 0] = Bounds[e.Value, 1] - 0.1;
187      ParameterizeOperators();
188      UpdateStrategyVectorBounds();
189    }
190    private void MoveGenerator_AdditiveMoveParameter_ActualNameChanged(object sender, EventArgs e) {
191      string name = ((ILookupParameter<AdditiveMove>)sender).ActualName;
192      foreach (IAdditiveRealVectorMoveOperator op in Operators.OfType<IAdditiveRealVectorMoveOperator>()) {
193        op.AdditiveMoveParameter.ActualName = name;
194      }
195    }
196    private void SphereEvaluator_Parameter_ValueChanged(object sender, EventArgs e) {
197      SphereEvaluator eval = (Evaluator as SphereEvaluator);
198      if (eval != null) {
199        foreach (ISphereMoveEvaluator op in Operators.OfType<ISphereMoveEvaluator>()) {
200          op.C = eval.C;
201          op.Alpha = eval.Alpha;
202        }
203      }
204    }
205    private void RastriginEvaluator_Parameter_ValueChanged(object sender, EventArgs e) {
206      RastriginEvaluator eval = (Evaluator as RastriginEvaluator);
207      if (eval != null) {
208        foreach (IRastriginMoveEvaluator op in Operators.OfType<IRastriginMoveEvaluator>()) {
209          op.A = eval.A;
210        }
211      }
212    }
213    private void strategyVectorCreator_BoundsParameter_ValueChanged(object sender, EventArgs e) {
214      strategyVectorManipulator.BoundsParameter.Value = (DoubleMatrix)strategyVectorCreator.BoundsParameter.Value.Clone();
215    }
216    private void strategyVectorCreator_StrategyParameterParameter_ActualNameChanged(object sender, EventArgs e) {
217      string name = strategyVectorCreator.StrategyParameterParameter.ActualName;
218      strategyVectorCrossover.ParentsParameter.ActualName = name;
219      strategyVectorCrossover.StrategyParameterParameter.ActualName = name;
220      strategyVectorManipulator.StrategyParameterParameter.ActualName = name;
221    }
222    #endregion
223
224    #region Helpers
225    [StorableHook(HookType.AfterDeserialization)]
226    private void AfterDeserialization() {
227      // BackwardsCompatibility3.3
228      #region Backwards compatible code (remove with 3.4)
229      if (Operators.Count == 0) InitializeOperators();
230      #endregion
231      AttachEventHandlers();
232    }
233
234    private void AttachEventHandlers() {
235      ProblemSizeParameter.ValueChanged += new EventHandler(ProblemSizeParameter_ValueChanged);
236      ProblemSize.ValueChanged += new EventHandler(ProblemSize_ValueChanged);
237      BoundsParameter.ValueChanged += new EventHandler(BoundsParameter_ValueChanged);
238      Bounds.ToStringChanged += new EventHandler(Bounds_ToStringChanged);
239      Bounds.ItemChanged += new EventHandler<EventArgs<int, int>>(Bounds_ItemChanged);
240      SolutionCreator.RealVectorParameter.ActualNameChanged += new EventHandler(SolutionCreator_RealVectorParameter_ActualNameChanged);
241      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
242      strategyVectorCreator.BoundsParameter.ValueChanged += new EventHandler(strategyVectorCreator_BoundsParameter_ValueChanged);
243      strategyVectorCreator.StrategyParameterParameter.ActualNameChanged += new EventHandler(strategyVectorCreator_StrategyParameterParameter_ActualNameChanged);
244    }
245    private void ParameterizeAnalyzers() {
246      BestSingleObjectiveTestFunctionSolutionAnalyzer.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
247      BestSingleObjectiveTestFunctionSolutionAnalyzer.ResultsParameter.ActualName = "Results";
248      BestSingleObjectiveTestFunctionSolutionAnalyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
249      BestSingleObjectiveTestFunctionSolutionAnalyzer.BestKnownQualityParameter.ActualName = BestKnownQualityParameter.Name;
250      BestSingleObjectiveTestFunctionSolutionAnalyzer.BestKnownSolutionParameter.ActualName = BestKnownSolutionParameter.Name;
251      BestSingleObjectiveTestFunctionSolutionAnalyzer.MaximizationParameter.ActualName = MaximizationParameter.Name;
252      BestSingleObjectiveTestFunctionSolutionAnalyzer.EvaluatorParameter.ActualName = EvaluatorParameter.Name;
253      BestSingleObjectiveTestFunctionSolutionAnalyzer.BoundsParameter.ActualName = BoundsParameter.Name;
254    }
255    private void InitializeOperators() {
256      Operators.Add(new BestSingleObjectiveTestFunctionSolutionAnalyzer());
257      ParameterizeAnalyzers();
258      Operators.AddRange(ApplicationManager.Manager.GetInstances<IRealVectorOperator>().Cast<IOperator>());
259      Operators.Add(strategyVectorCreator);
260      Operators.Add(strategyVectorCrossover);
261      Operators.Add(strategyVectorManipulator);
262      UpdateMoveEvaluators();
263      ParameterizeOperators();
264      InitializeMoveGenerators();
265    }
266    private void InitializeMoveGenerators() {
267      foreach (IAdditiveRealVectorMoveOperator op in Operators.OfType<IAdditiveRealVectorMoveOperator>()) {
268        if (op is IMoveGenerator) {
269          op.AdditiveMoveParameter.ActualNameChanged += new EventHandler(MoveGenerator_AdditiveMoveParameter_ActualNameChanged);
270        }
271      }
272    }
273    private void UpdateMoveEvaluators() {
274      foreach (ISingleObjectiveTestFunctionMoveEvaluator op in Operators.OfType<ISingleObjectiveTestFunctionMoveEvaluator>().ToList())
275        Operators.Remove(op);
276      foreach (ISingleObjectiveTestFunctionMoveEvaluator op in ApplicationManager.Manager.GetInstances<ISingleObjectiveTestFunctionMoveEvaluator>())
277        if (op.EvaluatorType == Evaluator.GetType()) {
278          Operators.Add(op);
279          #region Synchronize evaluator specific parameters with the parameters of the corresponding move evaluators
280          if (op is ISphereMoveEvaluator) {
281            SphereEvaluator e = (Evaluator as SphereEvaluator);
282            e.AlphaParameter.ValueChanged += new EventHandler(SphereEvaluator_Parameter_ValueChanged);
283            e.CParameter.ValueChanged += new EventHandler(SphereEvaluator_Parameter_ValueChanged);
284            ISphereMoveEvaluator em = (op as ISphereMoveEvaluator);
285            em.C = e.C;
286            em.Alpha = e.Alpha;
287          } else if (op is IRastriginMoveEvaluator) {
288            RastriginEvaluator e = (Evaluator as RastriginEvaluator);
289            e.AParameter.ValueChanged += new EventHandler(RastriginEvaluator_Parameter_ValueChanged);
290            IRastriginMoveEvaluator em = (op as IRastriginMoveEvaluator);
291            em.A = e.A;
292          }
293          #endregion
294        }
295      ParameterizeOperators();
296      OnOperatorsChanged();
297    }
298    private void ParameterizeSolutionCreator() {
299      SolutionCreator.LengthParameter.Value = new IntValue(ProblemSize.Value);
300      SolutionCreator.LengthParameter.Hidden = true;
301      SolutionCreator.BoundsParameter.ActualName = BoundsParameter.Name;
302      SolutionCreator.BoundsParameter.Hidden = true;
303    }
304    private void ParameterizeEvaluator() {
305      Evaluator.PointParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
306      Evaluator.PointParameter.Hidden = true;
307      BestKnownSolutionParameter.Value = Evaluator.GetBestKnownSolution(ProblemSize.Value);
308    }
309    private void ParameterizeOperators() {
310      foreach (IRealVectorCrossover op in Operators.OfType<IRealVectorCrossover>()) {
311        op.ParentsParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
312        op.ParentsParameter.Hidden = true;
313        op.ChildParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
314        op.ChildParameter.Hidden = true;
315        op.BoundsParameter.ActualName = BoundsParameter.Name;
316        op.BoundsParameter.Hidden = true;
317      }
318      foreach (IRealVectorManipulator op in Operators.OfType<IRealVectorManipulator>()) {
319        op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
320        op.RealVectorParameter.Hidden = true;
321        op.BoundsParameter.ActualName = BoundsParameter.Name;
322        op.BoundsParameter.Hidden = true;
323      }
324      foreach (IRealVectorMoveOperator op in Operators.OfType<IRealVectorMoveOperator>()) {
325        op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
326        op.RealVectorParameter.Hidden = true;
327      }
328      foreach (IRealVectorMoveGenerator op in Operators.OfType<IRealVectorMoveGenerator>()) {
329        op.BoundsParameter.ActualName = BoundsParameter.Name;
330        op.BoundsParameter.Hidden = true;
331      }
332      foreach (ISingleObjectiveTestFunctionAdditiveMoveEvaluator op in Operators.OfType<ISingleObjectiveTestFunctionAdditiveMoveEvaluator>()) {
333        op.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
334        op.QualityParameter.Hidden = true;
335        op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
336        op.RealVectorParameter.Hidden = true;
337      }
338      foreach (IRealVectorParticleCreator op in Operators.OfType<IRealVectorParticleCreator>()) {
339        op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
340        op.RealVectorParameter.Hidden = true;
341        op.BoundsParameter.ActualName = BoundsParameter.Name;
342        op.BoundsParameter.Hidden = true;
343        op.ProblemSizeParameter.ActualName = ProblemSizeParameter.Name;
344        op.ProblemSizeParameter.Hidden = true;
345      }
346      foreach (IRealVectorParticleUpdater op in Operators.OfType<IRealVectorParticleUpdater>()) {
347        op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
348        op.RealVectorParameter.Hidden = true;
349        op.BoundsParameter.ActualName = BoundsParameter.Name;
350        op.BoundsParameter.Hidden = true;
351      }
352      foreach (IRealVectorSwarmUpdater op in Operators.OfType<IRealVectorSwarmUpdater>()) {
353        op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
354        op.RealVectorParameter.Hidden = true;
355        op.MaximizationParameter.ActualName = MaximizationParameter.Name;
356        op.MaximizationParameter.Hidden = true;
357      }
358      foreach (var op in Operators.OfType<IRealVectorMultiNeighborhoodShakingOperator>()) {
359        op.RealVectorParameter.ActualName = SolutionCreator.RealVectorParameter.ActualName;
360        op.RealVectorParameter.Hidden = true;
361      }
362    }
363    private void UpdateStrategyVectorBounds() {
364      DoubleMatrix strategyBounds = (DoubleMatrix)Bounds.Clone();
365      for (int i = 0; i < strategyBounds.Rows; i++) {
366        if (strategyBounds[i, 0] < 0) strategyBounds[i, 0] = 0;
367        strategyBounds[i, 1] = 0.1 * (Bounds[i, 1] - Bounds[i, 0]);
368      }
369      strategyVectorCreator.BoundsParameter.Value = strategyBounds;
370    }
371    #endregion
372  }
373}
Note: See TracBrowser for help on using the repository browser.