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source: trunk/sources/HeuristicLab.Problems.ArtificialAnt/3.3/ArtificialAntProblem.cs @ 4118

Last change on this file since 4118 was 4118, checked in by abeham, 14 years ago

#1090

  • Fixed problem plugins reloading their operators on deserialization in following problems (forgot on them in the first commit)
    • SupportVectorRegressionProblem
    • SymbolicTimeSeriesPrognosisProblem
  • Fixed a bug in the FeatureSelectionProblem introduced in r4098
  • Fixed the issues mentioned in the code review of mkommend
File size: 23.7 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.Drawing;
25using System.Linq;
26using HeuristicLab.Common;
27using HeuristicLab.Core;
28using HeuristicLab.Data;
29using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
30using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Analyzers;
31using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Creators;
32using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Interfaces;
33using HeuristicLab.Optimization;
34using HeuristicLab.Parameters;
35using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
36using HeuristicLab.PluginInfrastructure;
37using HeuristicLab.Problems.ArtificialAnt.Analyzers;
38
39namespace HeuristicLab.Problems.ArtificialAnt {
40  [Item("Artificial Ant Problem", "Represents the Artificial Ant problem.")]
41  [Creatable("Problems")]
42  [StorableClass]
43  public sealed class ArtificialAntProblem : ParameterizedNamedItem, ISingleObjectiveProblem {
44
45    public override Image ItemImage {
46      get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Type; }
47    }
48
49    #region constant for default world (Santa Fe)
50    private readonly bool[,] santaFeAntTrail = new bool[,] {
51      {false, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
52      {false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
53      {false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, true, true, false, false, false, false},
54      {false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, true, false, false},
55      {false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, true, false, false},
56      {false, false, false, true, true, true, true, false, true, true, true, true, true, false, false, false, false, false, false, false, false, true, true, false, false, false, false, false, false, false, false, false},
57      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false},
58      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false},
59      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false},
60      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, true, false, false},
61      {false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false},
62      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
63      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false},
64      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false},
65      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, true, false, false, false, false, false, true, true, true, false, false, false},
66      {false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, true, false, false, false, false, false, false, false, false},
67      {false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
68      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
69      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, true, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false},
70      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, true, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false},
71      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
72      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
73      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false},
74      {false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false},
75      {false, false, false, true, true, false, false, true, true, true, true, true, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
76      {false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
77      {false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
78      {false, true, false, false, false, false, false, false, true, true, true, true, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
79      {false, true, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
80      {false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
81      {false, false, true, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false },
82      {false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false }
83    };
84    #endregion
85
86    #region Parameter Properties
87    public ValueParameter<BoolValue> MaximizationParameter {
88      get { return (ValueParameter<BoolValue>)Parameters["Maximization"]; }
89    }
90    IParameter ISingleObjectiveProblem.MaximizationParameter {
91      get { return MaximizationParameter; }
92    }
93    public ValueParameter<SymbolicExpressionTreeCreator> SolutionCreatorParameter {
94      get { return (ValueParameter<SymbolicExpressionTreeCreator>)Parameters["SolutionCreator"]; }
95    }
96    IParameter IProblem.SolutionCreatorParameter {
97      get { return SolutionCreatorParameter; }
98    }
99    public ValueParameter<Evaluator> EvaluatorParameter {
100      get { return (ValueParameter<Evaluator>)Parameters["Evaluator"]; }
101    }
102    IParameter IProblem.EvaluatorParameter {
103      get { return EvaluatorParameter; }
104    }
105    public ValueParameter<ISymbolicExpressionGrammar> ArtificialAntExpressionGrammarParameter {
106      get { return (ValueParameter<ISymbolicExpressionGrammar>)Parameters["ArtificialAntExpressionGrammar"]; }
107    }
108    public ValueParameter<IntValue> MaxExpressionLengthParameter {
109      get { return (ValueParameter<IntValue>)Parameters["MaxExpressionLength"]; }
110    }
111    public ValueParameter<IntValue> MaxExpressionDepthParameter {
112      get { return (ValueParameter<IntValue>)Parameters["MaxExpressionDepth"]; }
113    }
114    public ValueParameter<IntValue> MaxFunctionDefinitionsParameter {
115      get { return (ValueParameter<IntValue>)Parameters["MaxFunctionDefinitions"]; }
116    }
117    public ValueParameter<IntValue> MaxFunctionArgumentsParameter {
118      get { return (ValueParameter<IntValue>)Parameters["MaxFunctionArguments"]; }
119    }
120    public ValueParameter<BoolMatrix> WorldParameter {
121      get { return (ValueParameter<BoolMatrix>)Parameters["World"]; }
122    }
123    public ValueParameter<IntValue> MaxTimeStepsParameter {
124      get { return (ValueParameter<IntValue>)Parameters["MaxTimeSteps"]; }
125    }
126
127    public ValueParameter<DoubleValue> BestKnownQualityParameter {
128      get { return (ValueParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
129    }
130    IParameter ISingleObjectiveProblem.BestKnownQualityParameter {
131      get { return BestKnownQualityParameter; }
132    }
133    #endregion
134
135    #region Properties
136    public BoolMatrix World {
137      get { return WorldParameter.Value; }
138      set { WorldParameter.Value = value; }
139    }
140    public IntValue MaxTimeSteps {
141      get { return MaxTimeStepsParameter.Value; }
142      set { MaxTimeStepsParameter.Value = value; }
143    }
144    public IntValue MaxExpressionLength {
145      get { return MaxExpressionLengthParameter.Value; }
146      set { MaxExpressionLengthParameter.Value = value; }
147    }
148    public IntValue MaxExpressionDepth {
149      get { return MaxExpressionDepthParameter.Value; }
150      set { MaxExpressionDepthParameter.Value = value; }
151    }
152    public IntValue MaxFunctionDefinitions {
153      get { return MaxFunctionDefinitionsParameter.Value; }
154      set { MaxFunctionDefinitionsParameter.Value = value; }
155    }
156    public IntValue MaxFunctionArguments {
157      get { return MaxFunctionArgumentsParameter.Value; }
158      set { MaxFunctionArgumentsParameter.Value = value; }
159    }
160    public SymbolicExpressionTreeCreator SolutionCreator {
161      get { return SolutionCreatorParameter.Value; }
162      set { SolutionCreatorParameter.Value = value; }
163    }
164    ISolutionCreator IProblem.SolutionCreator {
165      get { return SolutionCreatorParameter.Value; }
166    }
167    public Evaluator Evaluator {
168      get { return EvaluatorParameter.Value; }
169      set { EvaluatorParameter.Value = value; }
170    }
171    ISingleObjectiveEvaluator ISingleObjectiveProblem.Evaluator {
172      get { return EvaluatorParameter.Value; }
173    }
174    IEvaluator IProblem.Evaluator {
175      get { return EvaluatorParameter.Value; }
176    }
177    public GlobalSymbolicExpressionGrammar ArtificialAntExpressionGrammar {
178      get { return (GlobalSymbolicExpressionGrammar)ArtificialAntExpressionGrammarParameter.Value; }
179    }
180    public DoubleValue BestKnownQuality {
181      get { return BestKnownQualityParameter.Value; }
182    }
183    public IEnumerable<IOperator> Operators {
184      get { return operators; }
185    }
186
187    public IEnumerable<IAntTrailAnalyzer> AntTrailAnalyzers {
188      get { return operators.OfType<IAntTrailAnalyzer>(); }
189    }
190    #endregion
191
192    [Storable]
193    private List<IOperator> operators;
194
195    [StorableConstructor]
196    private ArtificialAntProblem(bool deserializing) : base(deserializing) { }
197    public ArtificialAntProblem()
198      : base() {
199      SymbolicExpressionTreeCreator creator = new ProbabilisticTreeCreator();
200      Evaluator evaluator = new Evaluator();
201      BoolMatrix world = new BoolMatrix(santaFeAntTrail);
202      ISymbolicExpressionGrammar grammar = new GlobalSymbolicExpressionGrammar(new ArtificialAntExpressionGrammar());
203      Parameters.Add(new ValueParameter<BoolValue>("Maximization", "Set to true as the Artificial Ant Problem is a maximization problem.", new BoolValue(true)));
204      Parameters.Add(new ValueParameter<SymbolicExpressionTreeCreator>("SolutionCreator", "The operator which should be used to create new artificial ant solutions.", creator));
205      Parameters.Add(new ValueParameter<Evaluator>("Evaluator", "The operator which should be used to evaluate artificial ant solutions.", evaluator));
206      Parameters.Add(new ValueParameter<DoubleValue>("BestKnownQuality", "The quality of the best known solution of this artificial ant instance.", new DoubleValue(89)));
207      Parameters.Add(new ValueParameter<IntValue>("MaxExpressionLength", "Maximal length of the expression to control the artificial ant.", new IntValue(100)));
208      Parameters.Add(new ValueParameter<IntValue>("MaxExpressionDepth", "Maximal depth of the expression to control the artificial ant.", new IntValue(10)));
209      Parameters.Add(new ValueParameter<IntValue>("MaxFunctionDefinitions", "Maximal number of automatically defined functions in the expression to control the artificial ant.", new IntValue(3)));
210      Parameters.Add(new ValueParameter<IntValue>("MaxFunctionArguments", "Maximal number of arguments of automatically defined functions in the expression to control the artificial ant.", new IntValue(3)));
211      Parameters.Add(new ValueParameter<ISymbolicExpressionGrammar>("ArtificialAntExpressionGrammar", "The grammar that should be used for artificial ant expressions.", grammar));
212      Parameters.Add(new ValueParameter<BoolMatrix>("World", "The world for the artificial ant with scattered food items.", world));
213      Parameters.Add(new ValueParameter<IntValue>("MaxTimeSteps", "The number of time steps the artificial ant has available to collect all food items.", new IntValue(600)));
214
215      creator.SymbolicExpressionTreeParameter.ActualName = "AntTrailSolution";
216      evaluator.QualityParameter.ActualName = "FoodEaten";
217      ParameterizeSolutionCreator();
218      ParameterizeEvaluator();
219      InitializeOperators();
220      AttachEventHandlers();
221    }
222
223    public override IDeepCloneable Clone(Cloner cloner) {
224      ArtificialAntProblem clone = (ArtificialAntProblem)base.Clone(cloner);
225      clone.operators = operators.Select(x => (IOperator)cloner.Clone(x)).ToList();
226      clone.AttachEventHandlers();
227      return clone;
228    }
229
230    #region Events
231    public event EventHandler SolutionCreatorChanged;
232    private void OnSolutionCreatorChanged() {
233      EventHandler handler = SolutionCreatorChanged;
234      if (handler != null) handler(this, EventArgs.Empty);
235    }
236    public event EventHandler EvaluatorChanged;
237    private void OnEvaluatorChanged() {
238      EventHandler handler = EvaluatorChanged;
239      if (handler != null) handler(this, EventArgs.Empty);
240    }
241    public event EventHandler OperatorsChanged;
242    private void OnOperatorsChanged() {
243      EventHandler handler = OperatorsChanged;
244      if (handler != null) handler(this, EventArgs.Empty);
245    }
246    public event EventHandler Reset;
247    private void OnReset() {
248      EventHandler handler = Reset;
249      if (handler != null) handler(this, EventArgs.Empty);
250    }
251
252    private void SolutionCreatorParameter_ValueChanged(object sender, EventArgs e) {
253      SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += new EventHandler(SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged);
254      ParameterizeSolutionCreator();
255      ParameterizeEvaluator();
256      ParameterizeAnalyzers();
257      ParameterizeOperators();
258      OnSolutionCreatorChanged();
259    }
260    private void SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged(object sender, EventArgs e) {
261      ParameterizeEvaluator();
262      ParameterizeAnalyzers();
263      ParameterizeOperators();
264    }
265    private void EvaluatorParameter_ValueChanged(object sender, EventArgs e) {
266      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
267      ParameterizeEvaluator();
268      ParameterizeAnalyzers();
269      OnEvaluatorChanged();
270    }
271
272    private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
273      ParameterizeAnalyzers();
274    }
275
276    #endregion
277
278    #region Helpers
279    [StorableHook(HookType.AfterDeserialization)]
280    private void AfterDeserializationHook() {
281      // BackwardsCompatibility3.3
282      #region Backwards compatible code (remove with 3.4)
283      if (operators == null) InitializeOperators();
284      #endregion
285      AttachEventHandlers();
286    }
287
288    private void AttachEventHandlers() {
289      SolutionCreatorParameter.ValueChanged += new EventHandler(SolutionCreatorParameter_ValueChanged);
290      SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += new EventHandler(SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged);
291      EvaluatorParameter.ValueChanged += new EventHandler(EvaluatorParameter_ValueChanged);
292      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
293      MaxFunctionArgumentsParameter.ValueChanged += new EventHandler(MaxFunctionArgumentsParameter_ValueChanged);
294      MaxFunctionArguments.ValueChanged += new EventHandler(MaxFunctionArgumentsParameter_ValueChanged);
295      MaxFunctionDefinitionsParameter.ValueChanged += new EventHandler(MaxFunctionDefinitionsParameter_ValueChanged);
296      MaxFunctionDefinitions.ValueChanged += new EventHandler(MaxFunctionDefinitionsParameter_ValueChanged);
297    }
298
299    void MaxFunctionDefinitionsParameter_ValueChanged(object sender, EventArgs e) {
300      ArtificialAntExpressionGrammar.MaxFunctionDefinitions = MaxFunctionDefinitions.Value;
301    }
302
303    void MaxFunctionArgumentsParameter_ValueChanged(object sender, EventArgs e) {
304      ArtificialAntExpressionGrammar.MaxFunctionArguments = MaxFunctionArguments.Value;
305    }
306
307    private void InitializeOperators() {
308      operators = new List<IOperator>();
309      operators.AddRange(ApplicationManager.Manager.GetInstances<ISymbolicExpressionTreeOperator>().OfType<IOperator>());
310      operators.Add(new BestAntTrailAnalyzer());
311      operators.Add(new MinAverageMaxSymbolicExpressionTreeSizeAnalyzer());
312      ParameterizeAnalyzers();
313      ParameterizeOperators();
314    }
315
316    private void ParameterizeSolutionCreator() {
317      SolutionCreator.SymbolicExpressionGrammarParameter.ActualName = ArtificialAntExpressionGrammarParameter.Name;
318      SolutionCreator.MaxTreeHeightParameter.ActualName = MaxExpressionDepthParameter.Name;
319      SolutionCreator.MaxTreeSizeParameter.ActualName = MaxExpressionLengthParameter.Name;
320    }
321    private void ParameterizeEvaluator() {
322      Evaluator.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
323      Evaluator.MaxTimeStepsParameter.ActualName = MaxTimeStepsParameter.Name;
324      Evaluator.WorldParameter.ActualName = WorldParameter.Name;
325    }
326    private void ParameterizeAnalyzers() {
327      foreach (IAntTrailAnalyzer analyzer in AntTrailAnalyzers) {
328        analyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
329        analyzer.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
330        analyzer.WorldParameter.ActualName = WorldParameter.Name;
331        analyzer.MaxTimeStepsParameter.ActualName = MaxTimeStepsParameter.Name;
332      }
333      foreach (ISymbolicExpressionTreeAnalyzer analyzer in Operators.OfType<ISymbolicExpressionTreeAnalyzer>()) {
334        analyzer.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
335      }
336    }
337
338    private void ParameterizeOperators() {
339      foreach (ISymbolicExpressionTreeOperator op in Operators.OfType<ISymbolicExpressionTreeOperator>()) {
340        op.MaxTreeHeightParameter.ActualName = MaxExpressionDepthParameter.Name;
341        op.MaxTreeSizeParameter.ActualName = MaxExpressionLengthParameter.Name;
342        op.SymbolicExpressionGrammarParameter.ActualName = ArtificialAntExpressionGrammarParameter.Name;
343      }
344      foreach (Evaluator op in Operators.OfType<Evaluator>()) {
345        op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
346        op.MaxTimeStepsParameter.ActualName = MaxTimeStepsParameter.Name;
347        op.WorldParameter.ActualName = WorldParameter.Name;
348      }
349      foreach (ISymbolicExpressionTreeCrossover op in Operators.OfType<ISymbolicExpressionTreeCrossover>()) {
350        op.ParentsParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
351        op.ChildParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
352      }
353      foreach (ISymbolicExpressionTreeManipulator op in Operators.OfType<ISymbolicExpressionTreeManipulator>()) {
354        op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
355      }
356      foreach (ISymbolicExpressionTreeArchitectureManipulator op in Operators.OfType<ISymbolicExpressionTreeArchitectureManipulator>()) {
357        op.MaxFunctionDefinitionsParameter.ActualName = MaxFunctionDefinitionsParameter.Name;
358        op.MaxFunctionArgumentsParameter.ActualName = MaxFunctionArgumentsParameter.Name;
359      }
360      foreach (SymbolicExpressionTreeCreator op in Operators.OfType<SymbolicExpressionTreeCreator>()) {
361        op.MaxFunctionArgumentsParameter.ActualName = MaxFunctionArgumentsParameter.Name;
362        op.MaxFunctionDefinitionsParameter.ActualName = MaxFunctionDefinitionsParameter.Name;
363      }
364    }
365
366
367    #endregion
368  }
369}
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