[13368] | 1 | #region License Information
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[8059] | 2 | /* HeuristicLab
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[12012] | 3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[8059] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using System.Linq;
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| 24 | using HeuristicLab.Common;
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| 25 | using HeuristicLab.Core;
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| 26 | using HeuristicLab.Data;
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| 27 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 28 | using HeuristicLab.Optimization;
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| 29 | using HeuristicLab.Parameters;
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| 30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 31 | using HeuristicLab.PluginInfrastructure;
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| 32 |
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| 33 | namespace HeuristicLab.Problems.LawnMower {
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[14711] | 34 | [StorableType("F011A534-8F3A-4682-A474-74E26E787573")]
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[8059] | 35 | [Item("Lawn Mower Problem", "The lawn mower demo problem for genetic programming.")]
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| 36 | public class Problem : SingleObjectiveHeuristicOptimizationProblem<Evaluator, ISymbolicExpressionTreeCreator> {
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| 37 | private const string LawnWidthParameterName = "LawnWidth";
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| 38 | private const string LawnLengthParameterName = "LawnLength";
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| 39 | private const string LawnMowerProgramParameterName = "Program";
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| 40 | private const string MaxLawnMowerProgramLengthParameterName = "MaxProgramLength";
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| 41 | private const string MaxLawnMowerProgramDepthParameterName = "MaxProgramDepth";
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| 42 | private const string LawnMowerGrammarParameterName = "Grammar";
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[8131] | 43 | private const string MaxFunctionDefinitionsParameterName = "MaxFunctionDefinitions";
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| 44 | private const string MaxArgumentDefinitionsParameterName = "MaxArgumentDefinitions";
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[8059] | 45 |
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| 46 | public IFixedValueParameter<IntValue> LawnWidthParameter {
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| 47 | get { return (IFixedValueParameter<IntValue>)Parameters[LawnWidthParameterName]; }
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| 48 | }
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| 49 | public IFixedValueParameter<IntValue> LawnLengthParameter {
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| 50 | get { return (IFixedValueParameter<IntValue>)Parameters[LawnLengthParameterName]; }
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| 51 | }
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| 52 | public IFixedValueParameter<IntValue> MaxLawnMowerProgramLengthParameter {
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| 53 | get { return (IFixedValueParameter<IntValue>)Parameters[MaxLawnMowerProgramLengthParameterName]; }
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| 54 | }
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| 55 | public IFixedValueParameter<IntValue> MaxLawnMowerProgramDepthParameter {
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| 56 | get { return (IFixedValueParameter<IntValue>)Parameters[MaxLawnMowerProgramDepthParameterName]; }
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| 57 | }
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| 58 | public IValueParameter<Grammar> GrammarParameter {
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| 59 | get { return (IValueParameter<Grammar>)Parameters[LawnMowerGrammarParameterName]; }
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| 60 | }
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[8131] | 61 | public IFixedValueParameter<IntValue> MaxFunctionDefinitionsParameter {
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| 62 | get { return (IFixedValueParameter<IntValue>)Parameters[MaxFunctionDefinitionsParameterName]; }
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| 63 | }
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| 64 | public IFixedValueParameter<IntValue> MaxArgumentDefinitionsParameter {
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| 65 | get { return (IFixedValueParameter<IntValue>)Parameters[MaxArgumentDefinitionsParameterName]; }
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| 66 | }
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[8059] | 67 |
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| 68 | [StorableConstructor]
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| 69 | protected Problem(bool deserializing)
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| 70 | : base(deserializing) {
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| 71 | }
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| 72 | protected Problem(Problem original, Cloner cloner)
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| 73 | : base(original, cloner) {
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| 74 | RegisterEventHandlers();
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| 75 | }
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| 76 | public Problem()
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| 77 | : base(new Evaluator(), new RampedHalfAndHalfTreeCreator()) {
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| 78 | Parameters.Add(new FixedValueParameter<IntValue>(LawnWidthParameterName, "Width of the lawn.", new IntValue(8)));
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| 79 | Parameters.Add(new FixedValueParameter<IntValue>(LawnLengthParameterName, "Length of the lawn.", new IntValue(8)));
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| 80 | Parameters.Add(new FixedValueParameter<IntValue>(MaxLawnMowerProgramDepthParameterName, "Maximal depth of the lawn mower program.", new IntValue(13)));
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| 81 | Parameters.Add(new FixedValueParameter<IntValue>(MaxLawnMowerProgramLengthParameterName, "Maximal length of the lawn mower program.", new IntValue(1000)));
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[8131] | 82 | Parameters.Add(new FixedValueParameter<IntValue>(MaxFunctionDefinitionsParameterName, "Maximal number of automatically defined functions (ADF).", new IntValue(3)));
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| 83 | Parameters.Add(new FixedValueParameter<IntValue>(MaxArgumentDefinitionsParameterName, "Maximal number of automatically defined arguments.", new IntValue(3)));
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[8059] | 84 | Parameters.Add(new ValueParameter<Grammar>(LawnMowerGrammarParameterName, "Grammar for the lawn mower program.",
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| 85 | new Grammar()));
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| 86 | Maximization.Value = true;
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| 87 |
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[11504] | 88 | GrammarParameter.Value.MaximumFunctionDefinitions = MaxFunctionDefinitionsParameter.Value.Value;
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| 89 | GrammarParameter.Value.MaximumFunctionArguments = MaxArgumentDefinitionsParameter.Value.Value;
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| 90 |
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[12504] | 91 | InitializeOperators();
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[8059] | 92 | RegisterEventHandlers();
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| 93 | }
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| 94 |
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| 95 |
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| 96 | [StorableHook(HookType.AfterDeserialization)]
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| 97 | private void AfterDeserialization() {
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| 98 | RegisterEventHandlers();
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| 99 | }
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| 100 |
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| 101 | public override IDeepCloneable Clone(Cloner cloner) {
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| 102 | return new Problem(this, cloner);
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| 103 | }
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| 104 |
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| 105 | private void InitializeOperators() {
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| 106 | Operators.AddRange(ApplicationManager.Manager.GetInstances<ISymbolicExpressionTreeOperator>());
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| 107 | Operators.Add(new MinAverageMaxSymbolicExpressionTreeLengthAnalyzer());
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| 108 | Operators.Add(new SymbolicExpressionSymbolFrequencyAnalyzer());
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| 109 | Operators.Add(new BestSolutionAnalyzer());
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| 110 | ParameterizeOperators();
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| 111 | ParameterizeAnalyzers();
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| 112 | }
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| 113 |
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| 114 |
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| 115 | private void RegisterEventHandlers() {
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| 116 | Evaluator.QualityParameter.ActualNameChanged += QualityParameterOnActualNameChanged;
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| 117 | SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged +=
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| 118 | SymbolicExpressionTreeParameterOnActualNameChanged;
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[8131] | 119 | MaxArgumentDefinitionsParameter.ValueChanged += ParameterizeGrammar;
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| 120 | MaxFunctionDefinitionsParameter.ValueChanged += ParameterizeGrammar;
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[8059] | 121 | }
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| 122 |
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| 123 | protected override void OnEvaluatorChanged() {
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| 124 | Evaluator.LawnMowerProgramParameter.ActualName = LawnMowerProgramParameterName;
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| 125 | Evaluator.LawnLengthParameter.ActualName = LawnLengthParameterName;
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| 126 | Evaluator.LawnWidthParameter.ActualName = LawnWidthParameterName;
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| 127 | Evaluator.QualityParameter.ActualNameChanged += QualityParameterOnActualNameChanged;
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| 128 | ParameterizeAnalyzers();
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| 129 | ParameterizeOperators();
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[8163] | 130 | base.OnEvaluatorChanged();
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[8059] | 131 | }
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| 132 |
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| 133 | protected override void OnSolutionCreatorChanged() {
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| 134 | SolutionCreator.SymbolicExpressionTreeParameter.ActualName = LawnMowerProgramParameterName;
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| 135 | SolutionCreator.SymbolicExpressionTreeParameter.ActualNameChanged += SymbolicExpressionTreeParameterOnActualNameChanged;
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| 136 | ParameterizeAnalyzers();
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| 137 | ParameterizeOperators();
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[8163] | 138 | base.OnSolutionCreatorChanged();
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[8059] | 139 | }
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| 140 |
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| 141 | private void SymbolicExpressionTreeParameterOnActualNameChanged(object sender, EventArgs eventArgs) {
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| 142 | ParameterizeAnalyzers();
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| 143 | ParameterizeOperators();
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| 144 | }
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| 145 |
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| 146 | private void QualityParameterOnActualNameChanged(object sender, EventArgs eventArgs) {
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| 147 | ParameterizeAnalyzers();
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| 148 | ParameterizeOperators();
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| 149 | }
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| 150 |
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[8131] | 151 | private void ParameterizeGrammar(object sender, EventArgs eventArgs) {
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| 152 | GrammarParameter.Value.MaximumFunctionArguments = MaxArgumentDefinitionsParameter.Value.Value;
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| 153 | GrammarParameter.Value.MaximumFunctionDefinitions = MaxFunctionDefinitionsParameter.Value.Value;
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| 154 | }
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| 155 |
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[8059] | 156 | private void ParameterizeAnalyzers() {
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| 157 | var analyzers = Operators.OfType<IAnalyzer>();
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| 158 | foreach (var o in analyzers.OfType<ISymbolicExpressionTreeAnalyzer>()) {
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| 159 | o.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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| 160 | }
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| 161 | foreach (var o in analyzers.OfType<BestSolutionAnalyzer>()) {
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| 162 | o.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
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| 163 | }
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| 164 | }
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| 165 |
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| 166 | private void ParameterizeOperators() {
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| 167 | var operators = Parameters
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| 168 | .OfType<IValueParameter>()
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| 169 | .Select(p => p.Value)
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| 170 | .OfType<IOperator>()
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| 171 | .Union(Operators);
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| 172 | foreach (var o in operators.OfType<ISymbolicExpressionTreeGrammarBasedOperator>()) {
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| 173 | o.SymbolicExpressionTreeGrammarParameter.ActualName = LawnMowerGrammarParameterName;
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| 174 | }
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| 175 | foreach (var o in operators.OfType<ISymbolicExpressionTreeSizeConstraintOperator>()) {
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| 176 | o.MaximumSymbolicExpressionTreeDepthParameter.ActualName = MaxLawnMowerProgramDepthParameterName;
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| 177 | o.MaximumSymbolicExpressionTreeLengthParameter.ActualName = MaxLawnMowerProgramLengthParameterName;
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| 178 | }
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| 179 | foreach (var op in operators.OfType<Evaluator>()) {
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| 180 | op.LawnMowerProgramParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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| 181 | op.LawnLengthParameter.ActualName = LawnLengthParameterName;
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| 182 | op.LawnWidthParameter.ActualName = LawnWidthParameterName;
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| 183 | }
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| 184 | foreach (var op in operators.OfType<ISymbolicExpressionTreeCrossover>()) {
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| 185 | op.ParentsParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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[12422] | 186 | op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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[8059] | 187 | }
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| 188 | foreach (var op in operators.OfType<ISymbolicExpressionTreeManipulator>()) {
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| 189 | op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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| 190 | }
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| 191 | foreach (var op in operators.OfType<ISymbolicExpressionTreeCreator>()) {
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| 192 | op.SymbolicExpressionTreeParameter.ActualName = SolutionCreator.SymbolicExpressionTreeParameter.ActualName;
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| 193 | }
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[8131] | 194 | foreach (ISymbolicExpressionTreeArchitectureAlteringOperator op in operators.OfType<ISymbolicExpressionTreeArchitectureAlteringOperator>()) {
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| 195 | op.MaximumFunctionDefinitionsParameter.ActualName = MaxFunctionDefinitionsParameter.Name;
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| 196 | op.MaximumFunctionArgumentsParameter.ActualName = MaxArgumentDefinitionsParameter.Name;
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| 197 | }
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[8059] | 198 | }
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| 199 | }
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| 200 | }
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