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source: stable/HeuristicLab.Problems.ArtificialAnt/3.4/ArtificialAntProblem.cs @ 9844

Last change on this file since 9844 was 9456, checked in by swagner, 12 years ago

Updated copyright year and added some missing license headers (#1889)
File size: 19.9 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 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  [Creatable("Problems")]
38  [StorableClass]
39  public sealed class ArtificialAntProblem : SingleObjectiveHeuristicOptimizationProblem<Evaluator, ISymbolicExpressionTreeCreator>, IStorableContent {
40    public string Filename { get; set; }
41
42    #region constant for default world (Santa Fe)
43    private readonly bool[,] santaFeAntTrail = new bool[,] {
44      {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},
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, false, false, false, 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, false, true, true, true, false, false, 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, 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},
49      {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},
50      {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},
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, false, false, false},
53      {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},
54      {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},
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, false, false, false},
56      {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},
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, false, false, false, false, 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, true, true, true, false, false, false},
59      {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},
60      {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},
61      {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},
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, true, false, false, false, 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, true, 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, true, false, false, false, false, false, false, false, false, false, false, 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, false, false, false, true, false, false, false, false, false},
67      {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},
68      {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},
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, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
71      {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},
72      {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},
73      {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},
74      {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 },
75      {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 }
76    };
77    #endregion
78
79    #region Parameter Properties
80    public IValueParameter<ISymbolicExpressionGrammar> ArtificialAntExpressionGrammarParameter {
81      get { return (IValueParameter<ISymbolicExpressionGrammar>)Parameters["ArtificialAntExpressionGrammar"]; }
82    }
83    public IValueParameter<IntValue> MaxExpressionLengthParameter {
84      get { return (IValueParameter<IntValue>)Parameters["MaximumExpressionLength"]; }
85    }
86    public IValueParameter<IntValue> MaxExpressionDepthParameter {
87      get { return (IValueParameter<IntValue>)Parameters["MaximumExpressionDepth"]; }
88    }
89    public IValueParameter<IntValue> MaxFunctionDefinitionsParameter {
90      get { return (IValueParameter<IntValue>)Parameters["MaximumFunctionDefinitions"]; }
91    }
92    public IValueParameter<IntValue> MaxFunctionArgumentsParameter {
93      get { return (ValueParameter<IntValue>)Parameters["MaximumFunctionArguments"]; }
94    }
95    public IValueParameter<BoolMatrix> WorldParameter {
96      get { return (IValueParameter<BoolMatrix>)Parameters["World"]; }
97    }
98    public IValueParameter<IntValue> MaxTimeStepsParameter {
99      get { return (IValueParameter<IntValue>)Parameters["MaximumTimeSteps"]; }
100    }
101    #endregion
102
103    #region Properties
104    public BoolMatrix World {
105      get { return WorldParameter.Value; }
106      set { WorldParameter.Value = value; }
107    }
108    public IntValue MaxTimeSteps {
109      get { return MaxTimeStepsParameter.Value; }
110      set { MaxTimeStepsParameter.Value = value; }
111    }
112    public IntValue MaxExpressionLength {
113      get { return MaxExpressionLengthParameter.Value; }
114      set { MaxExpressionLengthParameter.Value = value; }
115    }
116    public IntValue MaxExpressionDepth {
117      get { return MaxExpressionDepthParameter.Value; }
118      set { MaxExpressionDepthParameter.Value = value; }
119    }
120    public IntValue MaxFunctionDefinitions {
121      get { return MaxFunctionDefinitionsParameter.Value; }
122      set { MaxFunctionDefinitionsParameter.Value = value; }
123    }
124    public IntValue MaxFunctionArguments {
125      get { return MaxFunctionArgumentsParameter.Value; }
126      set { MaxFunctionArgumentsParameter.Value = value; }
127    }
128    public ArtificialAntExpressionGrammar ArtificialAntExpressionGrammar {
129      get { return (ArtificialAntExpressionGrammar)ArtificialAntExpressionGrammarParameter.Value; }
130    }
131    public IEnumerable<IAntTrailAnalyzer> AntTrailAnalyzers {
132      get { return Operators.OfType<IAntTrailAnalyzer>(); }
133    }
134    #endregion
135
136    // BackwardsCompatibility3.3
137    #region Backwards compatible code, remove with 3.4
138    [Obsolete]
139    [Storable(Name = "operators")]
140    private IEnumerable<IOperator> oldOperators {
141      get { return null; }
142      set {
143        if (value != null && value.Any())
144          Operators.AddRange(value);
145      }
146    }
147    #endregion
148
149    [StorableConstructor]
150    private ArtificialAntProblem(bool deserializing) : base(deserializing) { }
151    [StorableHook(HookType.AfterDeserialization)]
152    private void AfterDeserialization() {
153      RegisterEventHandlers();
154    }
155
156    private ArtificialAntProblem(ArtificialAntProblem original, Cloner cloner)
157      : base(original, cloner) {
158      RegisterEventHandlers();
159    }
160    public override IDeepCloneable Clone(Cloner cloner) {
161      return new ArtificialAntProblem(this, cloner);
162    }
163    public ArtificialAntProblem()
164      : base(new Evaluator(), new ProbabilisticTreeCreator()) {
165      BoolMatrix world = new BoolMatrix(santaFeAntTrail);
166      Parameters.Add(new ValueParameter<IntValue>("MaximumExpressionLength", "Maximal length of the expression to control the artificial ant.", new IntValue(100)));
167      Parameters.Add(new ValueParameter<IntValue>("MaximumExpressionDepth", "Maximal depth of the expression to control the artificial ant.", new IntValue(10)));
168      Parameters.Add(new ValueParameter<IntValue>("MaximumFunctionDefinitions", "Maximal number of automatically defined functions in the expression to control the artificial ant.", new IntValue(3)));
169      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)));
170      Parameters.Add(new ValueParameter<ISymbolicExpressionGrammar>("ArtificialAntExpressionGrammar", "The grammar that should be used for artificial ant expressions.", new ArtificialAntExpressionGrammar()));
171      Parameters.Add(new ValueParameter<BoolMatrix>("World", "The world for the artificial ant with scattered food items.", world));
172      Parameters.Add(new ValueParameter<IntValue>("MaximumTimeSteps", "The number of time steps the artificial ant has available to collect all food items.", new IntValue(600)));
173
174      Maximization.Value = true;
175      MaximizationParameter.Hidden = true;
176      BestKnownQuality = new DoubleValue(89);
177      SolutionCreator.SymbolicExpressionTreeParameter.ActualName = "AntTrailSolution";
178      ((ProbabilisticTreeCreator)SolutionCreator).SymbolicExpressionTreeGrammarParameter.ActualName = "ArtificialAntExpressionGrammar";
179      Evaluator.QualityParameter.ActualName = "FoodEaten";
180      InitializeOperators();
181      RegisterEventHandlers();
182    }
183
184    #region Events
185    protected override void OnSolutionCreatorChanged() {
186      base.OnSolutionCreatorChanged();
187      SolutionCreator.SymbolicExpressionTreeParameter.ActualName = "AntTrailSolution";
188      var grammarBased = SolutionCreator as ISymbolicExpressionTreeGrammarBasedOperator;
189      if (grammarBased != null)
190        grammarBased.SymbolicExpressionTreeGrammarParameter.ActualName = "ArtificialAntExpressionGrammar";
191
192      SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += new EventHandler(SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged);
193      ParameterizeAnalyzers();
194      ParameterizeOperators();
195    }
196    protected override void OnEvaluatorChanged() {
197      base.OnEvaluatorChanged();
198      Evaluator.QualityParameter.ActualName = "FoodEaten";
199      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
200      ParameterizeAnalyzers();
201      ParameterizeOperators();
202    }
203    private void SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged(object sender, EventArgs e) {
204      ParameterizeAnalyzers();
205      ParameterizeOperators();
206    }
207    private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
208      ParameterizeAnalyzers();
209      ParameterizeOperators();
210    }
211    #endregion
212
213    #region Helpers
214    private void RegisterEventHandlers() {
215      SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += new EventHandler(SolutionCreator_SymbolicExpressionTreeParameter_ActualNameChanged);
216      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
217      MaxFunctionArgumentsParameter.ValueChanged += new EventHandler(MaxFunctionArgumentsParameter_ValueChanged);
218      MaxFunctionArguments.ValueChanged += new EventHandler(MaxFunctionArgumentsParameter_ValueChanged);
219      MaxFunctionDefinitionsParameter.ValueChanged += new EventHandler(MaxFunctionDefinitionsParameter_ValueChanged);
220      MaxFunctionDefinitions.ValueChanged += new EventHandler(MaxFunctionDefinitionsParameter_ValueChanged);
221    }
222
223    private void MaxFunctionDefinitionsParameter_ValueChanged(object sender, EventArgs e) {
224      ArtificialAntExpressionGrammar.MaximumFunctionDefinitions = MaxFunctionDefinitions.Value;
225      ParameterizeOperators();
226      ParameterizeAnalyzers();
227    }
228    private void MaxFunctionArgumentsParameter_ValueChanged(object sender, EventArgs e) {
229      ArtificialAntExpressionGrammar.MaximumFunctionArguments = MaxFunctionArguments.Value;
230      ParameterizeOperators();
231      ParameterizeAnalyzers();
232    }
233
234    private void InitializeOperators() {
235      Operators.AddRange(ApplicationManager.Manager.GetInstances<ISymbolicExpressionTreeOperator>().OfType<IOperator>());
236      Operators.Add(new BestAntTrailAnalyzer());
237      Operators.Add(new MinAverageMaxSymbolicExpressionTreeLengthAnalyzer());
238      Operators.Add(new SymbolicExpressionSymbolFrequencyAnalyzer());
239      ParameterizeAnalyzers();
240      ParameterizeOperators();
241    }
242
243    private void ParameterizeAnalyzers() {
244      foreach (IAntTrailAnalyzer analyzer in AntTrailAnalyzers) {
245        analyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
246        analyzer.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
247        analyzer.WorldParameter.ActualName = WorldParameter.Name;
248        analyzer.MaxTimeStepsParameter.ActualName = MaxTimeStepsParameter.Name;
249      }
250      foreach (ISymbolicExpressionTreeAnalyzer analyzer in Operators.OfType<ISymbolicExpressionTreeAnalyzer>()) {
251        analyzer.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
252      }
253    }
254
255    private void ParameterizeOperators() {
256      var operators = Parameters.OfType<IValueParameter>().Select(p => p.Value).OfType<IOperator>().Union(Operators);
257
258      foreach (ISymbolicExpressionTreeGrammarBasedOperator op in operators.OfType<ISymbolicExpressionTreeGrammarBasedOperator>()) {
259        op.SymbolicExpressionTreeGrammarParameter.ActualName = ArtificialAntExpressionGrammarParameter.Name;
260      }
261      foreach (ISymbolicExpressionTreeSizeConstraintOperator op in operators.OfType<ISymbolicExpressionTreeSizeConstraintOperator>()) {
262        op.MaximumSymbolicExpressionTreeDepthParameter.ActualName = MaxExpressionDepthParameter.Name;
263        op.MaximumSymbolicExpressionTreeLengthParameter.ActualName = MaxExpressionLengthParameter.Name;
264
265      }
266      foreach (Evaluator op in operators.OfType<Evaluator>()) {
267        op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
268        op.MaxTimeStepsParameter.ActualName = MaxTimeStepsParameter.Name;
269        op.WorldParameter.ActualName = WorldParameter.Name;
270      }
271      foreach (ISymbolicExpressionTreeCrossover op in operators.OfType<ISymbolicExpressionTreeCrossover>()) {
272        op.ParentsParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
273        op.ChildParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
274      }
275      foreach (ISymbolicExpressionTreeManipulator op in operators.OfType<ISymbolicExpressionTreeManipulator>()) {
276        op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
277      }
278      foreach (ISymbolicExpressionTreeArchitectureAlteringOperator op in operators.OfType<ISymbolicExpressionTreeArchitectureAlteringOperator>()) {
279        op.MaximumFunctionDefinitionsParameter.ActualName = MaxFunctionDefinitionsParameter.Name;
280        op.MaximumFunctionArgumentsParameter.ActualName = MaxFunctionArgumentsParameter.Name;
281      }
282    }
283    #endregion
284  }
285}
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