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source: trunk/sources/HeuristicLab.Problems.ArtificialAnt/3.4/ArtificialAntProblem.cs @ 13376

Last change on this file since 13376 was 12895, checked in by gkronber, 9 years ago

#2421 new version of artificial ant problem that uses SymbolicExpressionTreeEncoding
File size: 20.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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.SymbolicExpressionTreeEncoding;
29using HeuristicLab.Optimization;
30using HeuristicLab.Parameters;
31using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
32using HeuristicLab.PluginInfrastructure;
33using HeuristicLab.Problems.ArtificialAnt.Analyzers;
34
35namespace HeuristicLab.Problems.ArtificialAnt {
36  [Item("Artificial Ant Problem", "Represents the Artificial Ant problem.")]
37  [StorableClass]
38  public sealed class ArtificialAntProblem : SingleObjectiveHeuristicOptimizationProblem<Evaluator, ISymbolicExpressionTreeCreator>, IStorableContent {
39    public string Filename { get; set; }
40
41    #region constant for default world (Santa Fe)
42    private readonly bool[,] santaFeAntTrail = new bool[,] {
43      {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},
44      {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},
45      {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},
46      {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},
47      {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},
48      {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},
49      {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},
50      {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},
51      {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},
52      {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},
53      {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},
54      {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},
55      {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},
56      {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},
57      {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},
58      {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},
59      {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},
60      {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},
61      {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},
62      {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},
63      {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},
64      {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},
65      {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},
66      {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},
67      {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},
68      {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},
69      {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},
70      {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},
71      {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},
72      {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},
73      {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 },
74      {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 }
75    };
76    #endregion
77
78    #region Parameter Properties
79    public IValueParameter<ISymbolicExpressionGrammar> ArtificialAntExpressionGrammarParameter {
80      get { return (IValueParameter<ISymbolicExpressionGrammar>)Parameters["ArtificialAntExpressionGrammar"]; }
81    }
82    public IValueParameter<IntValue> MaxExpressionLengthParameter {
83      get { return (IValueParameter<IntValue>)Parameters["MaximumExpressionLength"]; }
84    }
85    public IValueParameter<IntValue> MaxExpressionDepthParameter {
86      get { return (IValueParameter<IntValue>)Parameters["MaximumExpressionDepth"]; }
87    }
88    public IValueParameter<IntValue> MaxFunctionDefinitionsParameter {
89      get { return (IValueParameter<IntValue>)Parameters["MaximumFunctionDefinitions"]; }
90    }
91    public IValueParameter<IntValue> MaxFunctionArgumentsParameter {
92      get { return (ValueParameter<IntValue>)Parameters["MaximumFunctionArguments"]; }
93    }
94    public IValueParameter<BoolMatrix> WorldParameter {
95      get { return (IValueParameter<BoolMatrix>)Parameters["World"]; }
96    }
97    public IValueParameter<IntValue> MaxTimeStepsParameter {
98      get { return (IValueParameter<IntValue>)Parameters["MaximumTimeSteps"]; }
99    }
100    #endregion
101
102    #region Properties
103    public BoolMatrix World {
104      get { return WorldParameter.Value; }
105      set { WorldParameter.Value = value; }
106    }
107    public IntValue MaxTimeSteps {
108      get { return MaxTimeStepsParameter.Value; }
109      set { MaxTimeStepsParameter.Value = value; }
110    }
111    public IntValue MaxExpressionLength {
112      get { return MaxExpressionLengthParameter.Value; }
113      set { MaxExpressionLengthParameter.Value = value; }
114    }
115    public IntValue MaxExpressionDepth {
116      get { return MaxExpressionDepthParameter.Value; }
117      set { MaxExpressionDepthParameter.Value = value; }
118    }
119    public IntValue MaxFunctionDefinitions {
120      get { return MaxFunctionDefinitionsParameter.Value; }
121      set { MaxFunctionDefinitionsParameter.Value = value; }
122    }
123    public IntValue MaxFunctionArguments {
124      get { return MaxFunctionArgumentsParameter.Value; }
125      set { MaxFunctionArgumentsParameter.Value = value; }
126    }
127    public ArtificialAntExpressionGrammar ArtificialAntExpressionGrammar {
128      get { return (ArtificialAntExpressionGrammar)ArtificialAntExpressionGrammarParameter.Value; }
129    }
130    public IEnumerable<IAntTrailAnalyzer> AntTrailAnalyzers {
131      get { return Operators.OfType<IAntTrailAnalyzer>(); }
132    }
133    #endregion
134
135    // BackwardsCompatibility3.3
136    #region Backwards compatible code, remove with 3.4
137    [Obsolete]
138    [Storable(Name = "operators")]
139    private IEnumerable<IOperator> oldOperators {
140      get { return null; }
141      set {
142        if (value != null && value.Any())
143          Operators.AddRange(value);
144      }
145    }
146    #endregion
147
148    [StorableConstructor]
149    private ArtificialAntProblem(bool deserializing) : base(deserializing) { }
150    [StorableHook(HookType.AfterDeserialization)]
151    private void AfterDeserialization() {
152      RegisterEventHandlers();
153    }
154
155    private ArtificialAntProblem(ArtificialAntProblem original, Cloner cloner)
156      : base(original, cloner) {
157      RegisterEventHandlers();
158    }
159    public override IDeepCloneable Clone(Cloner cloner) {
160      return new ArtificialAntProblem(this, cloner);
161    }
162    public ArtificialAntProblem()
163      : base(new Evaluator(), new ProbabilisticTreeCreator()) {
164      BoolMatrix world = new BoolMatrix(santaFeAntTrail);
165      Parameters.Add(new ValueParameter<IntValue>("MaximumExpressionLength", "Maximal length of the expression to control the artificial ant.", new IntValue(100)));
166      Parameters.Add(new ValueParameter<IntValue>("MaximumExpressionDepth", "Maximal depth of the expression to control the artificial ant.", new IntValue(10)));
167      Parameters.Add(new ValueParameter<IntValue>("MaximumFunctionDefinitions", "Maximal number of automatically defined functions in the expression to control the artificial ant.", new IntValue(3)));
168      Parameters.Add(new ValueParameter<IntValue>("MaximumFunctionArguments", "Maximal number of arguments of automatically defined functions in the expression to control the artificial ant.", new IntValue(3)));
169      Parameters.Add(new ValueParameter<ISymbolicExpressionGrammar>("ArtificialAntExpressionGrammar", "The grammar that should be used for artificial ant expressions.", new ArtificialAntExpressionGrammar()));
170      Parameters.Add(new ValueParameter<BoolMatrix>("World", "The world for the artificial ant with scattered food items.", world));
171      Parameters.Add(new ValueParameter<IntValue>("MaximumTimeSteps", "The number of time steps the artificial ant has available to collect all food items.", new IntValue(600)));
172
173      Maximization.Value = true;
174      MaximizationParameter.Hidden = true;
175      BestKnownQuality = new DoubleValue(89);
176      SolutionCreator.SymbolicExpressionTreeParameter.ActualName = "AntTrailSolution";
177      ((ProbabilisticTreeCreator)SolutionCreator).SymbolicExpressionTreeGrammarParameter.ActualName = "ArtificialAntExpressionGrammar";
178      Evaluator.QualityParameter.ActualName = "FoodEaten";
179      InitializeOperators();
180      RegisterEventHandlers();
181
182      ArtificialAntExpressionGrammar.MaximumFunctionDefinitions = MaxFunctionDefinitions.Value;
183      ArtificialAntExpressionGrammar.MaximumFunctionArguments = MaxFunctionArguments.Value;
184    }
185
186    #region Events
187    protected override void OnSolutionCreatorChanged() {
188      base.OnSolutionCreatorChanged();
189      SolutionCreator.SymbolicExpressionTreeParameter.ActualName = "AntTrailSolution";
190      var grammarBased = SolutionCreator as ISymbolicExpressionTreeGrammarBasedOperator;
191      if (grammarBased != null)
192        grammarBased.SymbolicExpressionTreeGrammarParameter.ActualName = "ArtificialAntExpressionGrammar";
193
194      SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += new EventHandler(SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged);
195      ParameterizeAnalyzers();
196      ParameterizeOperators();
197    }
198    protected override void OnEvaluatorChanged() {
199      base.OnEvaluatorChanged();
200      Evaluator.QualityParameter.ActualName = "FoodEaten";
201      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
202      ParameterizeAnalyzers();
203      ParameterizeOperators();
204    }
205    private void SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged(object sender, EventArgs e) {
206      ParameterizeAnalyzers();
207      ParameterizeOperators();
208    }
209    private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
210      ParameterizeAnalyzers();
211      ParameterizeOperators();
212    }
213    #endregion
214
215    #region Helpers
216    private void RegisterEventHandlers() {
217      SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += new EventHandler(SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged);
218      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
219      MaxFunctionArgumentsParameter.ValueChanged += new EventHandler(MaxFunctionArgumentsParameter_ValueChanged);
220      MaxFunctionArguments.ValueChanged += new EventHandler(MaxFunctionArgumentsParameter_ValueChanged);
221      MaxFunctionDefinitionsParameter.ValueChanged += new EventHandler(MaxFunctionDefinitionsParameter_ValueChanged);
222      MaxFunctionDefinitions.ValueChanged += new EventHandler(MaxFunctionDefinitionsParameter_ValueChanged);
223    }
224
225    private void MaxFunctionDefinitionsParameter_ValueChanged(object sender, EventArgs e) {
226      ArtificialAntExpressionGrammar.MaximumFunctionDefinitions = MaxFunctionDefinitions.Value;
227      ParameterizeOperators();
228      ParameterizeAnalyzers();
229    }
230    private void MaxFunctionArgumentsParameter_ValueChanged(object sender, EventArgs e) {
231      ArtificialAntExpressionGrammar.MaximumFunctionArguments = MaxFunctionArguments.Value;
232      ParameterizeOperators();
233      ParameterizeAnalyzers();
234    }
235
236    private void InitializeOperators() {
237      Operators.AddRange(ApplicationManager.Manager.GetInstances<ISymbolicExpressionTreeOperator>().OfType<IOperator>());
238      Operators.Add(new BestAntTrailAnalyzer());
239      Operators.Add(new MinAverageMaxSymbolicExpressionTreeLengthAnalyzer());
240      Operators.Add(new SymbolicExpressionSymbolFrequencyAnalyzer());
241      ParameterizeAnalyzers();
242      ParameterizeOperators();
243    }
244
245    private void ParameterizeAnalyzers() {
246      foreach (IAntTrailAnalyzer analyzer in AntTrailAnalyzers) {
247        analyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
248        analyzer.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
249        analyzer.WorldParameter.ActualName = WorldParameter.Name;
250        analyzer.MaxTimeStepsParameter.ActualName = MaxTimeStepsParameter.Name;
251      }
252      foreach (ISymbolicExpressionTreeAnalyzer analyzer in Operators.OfType<ISymbolicExpressionTreeAnalyzer>()) {
253        analyzer.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
254      }
255    }
256
257    private void ParameterizeOperators() {
258      var operators = Parameters.OfType<IValueParameter>().Select(p => p.Value).OfType<IOperator>().Union(Operators);
259
260      foreach (ISymbolicExpressionTreeGrammarBasedOperator op in operators.OfType<ISymbolicExpressionTreeGrammarBasedOperator>()) {
261        op.SymbolicExpressionTreeGrammarParameter.ActualName = ArtificialAntExpressionGrammarParameter.Name;
262      }
263      foreach (ISymbolicExpressionTreeSizeConstraintOperator op in operators.OfType<ISymbolicExpressionTreeSizeConstraintOperator>()) {
264        op.MaximumSymbolicExpressionTreeDepthParameter.ActualName = MaxExpressionDepthParameter.Name;
265        op.MaximumSymbolicExpressionTreeLengthParameter.ActualName = MaxExpressionLengthParameter.Name;
266
267      }
268      foreach (Evaluator op in operators.OfType<Evaluator>()) {
269        op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
270        op.MaxTimeStepsParameter.ActualName = MaxTimeStepsParameter.Name;
271        op.WorldParameter.ActualName = WorldParameter.Name;
272      }
273      foreach (ISymbolicExpressionTreeCrossover op in operators.OfType<ISymbolicExpressionTreeCrossover>()) {
274        op.ParentsParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
275        op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
276      }
277      foreach (ISymbolicExpressionTreeManipulator op in operators.OfType<ISymbolicExpressionTreeManipulator>()) {
278        op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
279      }
280      foreach (ISymbolicExpressionTreeArchitectureAlteringOperator op in operators.OfType<ISymbolicExpressionTreeArchitectureAlteringOperator>()) {
281        op.MaximumFunctionDefinitionsParameter.ActualName = MaxFunctionDefinitionsParameter.Name;
282        op.MaximumFunctionArgumentsParameter.ActualName = MaxFunctionArgumentsParameter.Name;
283      }
284    }
285    #endregion
286  }
287}
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