| 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 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.Linq;
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| 23 | using HeuristicLab.Common;
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| 24 | using HeuristicLab.Core;
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| 25 | using HeuristicLab.Data;
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| 26 | using HeuristicLab.Encodings.CombinedIntegerVectorEncoding;
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| 27 | using HeuristicLab.Encodings.ConditionActionEncoding;
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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.Problems.DataAnalysis;
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| 32 | using HeuristicLab.Problems.Instances;
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| 33 |
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| 34 | namespace HeuristicLab.Problems.ConditionActionClassification {
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| 35 | [StorableClass]
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| 36 | public class ConditionActionClassificationProblem : HeuristicOptimizationProblem<XCSEvaluator, UniformRandomCombinedIntegerVectorCreator>, IConditionActionProblem,
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| 37 | IProblemInstanceConsumer<ConditionActionClassificationProblemData> {
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| 38 | private const string ClassifierFetcherParameterName = "ClassifierFetcher";
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| 39 | private const string ActionExecuterParameterName = "ActionExecuter";
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| 40 | private const string ActionSetSubsumptionOperatorParameterName = "ActionSetSubsumption";
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| 41 |
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| 42 | IXCSEvaluator IConditionActionProblem.Evaluator {
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| 43 | get { return Evaluator; }
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| 44 | }
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| 45 |
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| 46 | #region parameter properties
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| 47 | public IValueParameter<ConditionActionClassificationProblemData> ProblemDataParameter {
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| 48 | get { return (IValueParameter<ConditionActionClassificationProblemData>)Parameters["ProblemData"]; }
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| 49 | }
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| 50 | public IValueParameter<ICoveringSolutionCreator> CoveringSolutionCreatorParameter {
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| 51 | get { return (IValueParameter<ICoveringSolutionCreator>)Parameters["CoveringSolutionCreator"]; }
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| 52 | }
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| 53 | public IFixedValueParameter<PercentValue> ChangeSymbolProbabilityInCoveringParameter {
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| 54 | get { return (IFixedValueParameter<PercentValue>)Parameters["ChangeSymbolProbabilityInCovering"]; }
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| 55 | }
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| 56 | public IFixedValueParameter<DoubleValue> PositiveRewardParameter {
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| 57 | get { return (IFixedValueParameter<DoubleValue>)Parameters["PositiveReward"]; }
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| 58 | }
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| 59 | public IFixedValueParameter<DoubleValue> NegativeRewardParameter {
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| 60 | get { return (IFixedValueParameter<DoubleValue>)Parameters["NegativeReward"]; }
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| 61 | }
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| 62 | public IFixedValueParameter<DoubleValue> InitialPredictionParameter {
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| 63 | get { return (IFixedValueParameter<DoubleValue>)Parameters["InitialPrediction"]; }
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| 64 | }
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| 65 | public IFixedValueParameter<DoubleValue> InitialErrorParameter {
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| 66 | get { return (IFixedValueParameter<DoubleValue>)Parameters["InitialError"]; }
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| 67 | }
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| 68 | public IFixedValueParameter<DoubleValue> InitialFitnessParameter {
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| 69 | get { return (IFixedValueParameter<DoubleValue>)Parameters["InitialFitness"]; }
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| 70 | }
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| 71 | public IFixedValueParameter<ItemSet<IClassifier>> PossibleActionsParameter {
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| 72 | get { return (IFixedValueParameter<ItemSet<IClassifier>>)Parameters["PossibleActions"]; }
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| 73 | }
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| 74 | public IFixedValueParameter<ItemSet<CombinedIntegerVector>> PossibleActionsConcreteClassParameter {
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| 75 | get { return (IFixedValueParameter<ItemSet<CombinedIntegerVector>>)Parameters["PossibleActionsConcreteClass"]; }
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| 76 | }
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| 77 | public IFixedValueParameter<IntValue> ThetaMinimalNumberOfActionsParameter {
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| 78 | get { return (IFixedValueParameter<IntValue>)Parameters["ThetaMinimalNumberOfActions"]; }
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| 79 | }
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| 80 | #endregion
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| 81 |
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| 82 | #region properties
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| 83 | IParameter IConditionActionProblem.ProblemDataParameter {
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| 84 | get { return ProblemDataParameter; }
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| 85 | }
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| 86 | IConditionActionProblemData IConditionActionProblem.ProblemData {
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| 87 | get { return ProblemData; }
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| 88 | }
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| 89 | public ConditionActionClassificationProblemData ProblemData {
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| 90 | get { return ProblemDataParameter.Value; }
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| 91 | protected set {
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| 92 | ProblemDataParameter.Value = value;
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| 93 | if (value != null) {
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| 94 | SetProblemDataSpecificParameters();
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| 95 | }
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| 96 | }
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| 97 | }
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| 98 | IParameter IConditionActionProblem.PossibleActionsConcreteClassParameter {
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| 99 | get { return PossibleActionsConcreteClassParameter; }
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| 100 | }
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| 101 | public ItemSet<CombinedIntegerVector> PossibleActionsConcreteClass {
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| 102 | get { return PossibleActionsConcreteClassParameter.Value; }
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| 103 | }
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| 104 | IParameter IConditionActionProblem.PossibleActionsParameter {
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| 105 | get { return PossibleActionsParameter; }
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| 106 | }
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| 107 | //IItemSet<IClassifier> IConditionActionProblem.PossibleActions {
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| 108 | // get { return PossibleActions; }
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| 109 | //}
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| 110 | public ItemSet<IClassifier> PossibleActions {
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| 111 | get { return PossibleActionsParameter.Value; }
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| 112 | }
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| 113 | public IActionExecuter ActionExecuter {
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| 114 | get { return ActionExecuterParameter.Value; }
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| 115 | }
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| 116 | public ValueParameter<IActionExecuter> ActionExecuterParameter {
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| 117 | get { return (ValueParameter<IActionExecuter>)Parameters[ActionExecuterParameterName]; }
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| 118 | }
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| 119 | IParameter IConditionActionProblem.ActionExecuterParameter { get { return ActionExecuterParameter; } }
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| 120 | public ClassifierFetcher ClassifierFetcher {
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| 121 | get { return ClassifierFetcherParameter.Value; }
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| 122 | }
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| 123 | public ValueParameter<ClassifierFetcher> ClassifierFetcherParameter {
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| 124 | get { return (ValueParameter<ClassifierFetcher>)Parameters[ClassifierFetcherParameterName]; }
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| 125 | }
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| 126 | IClassifierFetcher IConditionActionProblem.ClassifierFetcher { get { return ClassifierFetcher; } }
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| 127 | IParameter IConditionActionProblem.ClassifierFetcherParameter { get { return ClassifierFetcherParameter; } }
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| 128 |
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| 129 |
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| 130 | public ActionSetSubsumptionOperator ActionSetSubsumptionOperator {
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| 131 | get { return ActionSetSubsumptionOperatorParameter.Value; }
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| 132 | }
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| 133 | public ValueParameter<ActionSetSubsumptionOperator> ActionSetSubsumptionOperatorParameter {
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| 134 | get { return (ValueParameter<ActionSetSubsumptionOperator>)Parameters[ActionSetSubsumptionOperatorParameterName]; }
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| 135 | }
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| 136 | IActionSetSubsumption IConditionActionProblem.ActionSetSubsumptionOperator { get { return ActionSetSubsumptionOperator; } }
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| 137 | IParameter IConditionActionProblem.ActionSetSubsumptionOperatorParameter { get { return ActionSetSubsumptionOperatorParameter; } }
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| 138 |
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| 139 | private IntValue ThetaMinimalNumberOfActions {
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| 140 | get { return ThetaMinimalNumberOfActionsParameter.Value; }
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| 141 | }
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| 142 | IParameter IConditionActionProblem.ThetaMinimalNumberOfActionsParameter {
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| 143 | get { return ThetaMinimalNumberOfActionsParameter; }
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| 144 | }
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| 145 | public ICoveringSolutionCreator CoveringSolutionCreator {
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| 146 | get { return CoveringSolutionCreatorParameter.Value; }
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| 147 | }
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| 148 | IParameter IConditionActionProblem.CoveringSolutionCreatorParameter {
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| 149 | get { return CoveringSolutionCreatorParameter; }
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| 150 | }
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| 151 | #endregion
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| 152 |
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| 153 | [StorableConstructor]
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| 154 | protected ConditionActionClassificationProblem(bool deserializing) : base(deserializing) { }
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| 155 | protected ConditionActionClassificationProblem(ConditionActionClassificationProblem original, Cloner cloner)
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| 156 | : base(original, cloner) {
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| 157 | }
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| 158 | public override IDeepCloneable Clone(Cloner cloner) {
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| 159 | return new ConditionActionClassificationProblem(this, cloner);
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| 160 | }
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| 161 |
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| 162 | public ConditionActionClassificationProblem() :
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| 163 | this(new ConditionActionClassificationProblemData(new Dataset(ConditionActionClassificationProblemData.defaultVariableNames, ConditionActionClassificationProblemData.defaultData),
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| 164 | ConditionActionClassificationProblemData.defaultVariableNames.Take(ConditionActionClassificationProblemData.defaultVariableNames.Length - 1), ConditionActionClassificationProblemData.defaultVariableNames.Last().ToEnumerable()),
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| 165 | new XCSEvaluator(), new UniformRandomCombinedIntegerVectorCreator(), new CombinedIntegerVectorCoveringCreator()) {
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| 166 | }
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| 167 |
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| 168 | public ConditionActionClassificationProblem(ConditionActionClassificationProblemData problemData, XCSEvaluator evaluator, UniformRandomCombinedIntegerVectorCreator solutionCreator, ICoveringSolutionCreator coveringSolutionCreator)
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| 169 | : base(evaluator, solutionCreator) {
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| 170 | Parameters.Add(new ValueParameter<ConditionActionClassificationProblemData>("ProblemData", "", problemData));
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| 171 | Parameters.Add(new FixedValueParameter<DoubleValue>("PositiveReward", "", new DoubleValue(1000)));
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| 172 | Parameters.Add(new FixedValueParameter<DoubleValue>("NegativeReward", "", new DoubleValue(0)));
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| 173 | Parameters.Add(new FixedValueParameter<DoubleValue>("InitialPrediction", "Initial Presiction", new DoubleValue(0)));
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| 174 | Parameters.Add(new FixedValueParameter<DoubleValue>("InitialError", "Initial Error", new DoubleValue(0)));
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| 175 | Parameters.Add(new FixedValueParameter<DoubleValue>("InitialFitness", "Initial Fitness", new DoubleValue(0)));
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| 176 |
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| 177 | Parameters.Add(new ValueParameter<IActionExecuter>(ActionExecuterParameterName, "", new ActionExecuter()));
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| 178 | Parameters.Add(new ValueParameter<ClassifierFetcher>(ClassifierFetcherParameterName, "", new ClassifierFetcher()));
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| 179 | Parameters.Add(new FixedValueParameter<ItemSet<IClassifier>>("PossibleActions"));
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| 180 | Parameters.Add(new FixedValueParameter<ItemSet<CombinedIntegerVector>>("PossibleActionsConcreteClass"));
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| 181 | Parameters.Add(new FixedValueParameter<IntValue>("ThetaMinimalNumberOfActions", "Minimal number of actions, which have to be present in the match set, or else covering will occure.", new IntValue(1)));
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| 182 |
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| 183 | Parameters.Add(new ValueParameter<ICoveringSolutionCreator>("CoveringSolutionCreator", "", coveringSolutionCreator));
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| 184 | Parameters.Add(new FixedValueParameter<PercentValue>("ChangeSymbolProbabilityInCovering", "", new PercentValue(0.33)));
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| 185 |
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| 186 | Parameters.Add(new ValueParameter<ActionSetSubsumptionOperator>(ActionSetSubsumptionOperatorParameterName, "", new ActionSetSubsumptionOperator()));
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| 187 |
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| 188 | Evaluator.InitialErrorParameter.ActualName = "InitialError";
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| 189 | Evaluator.InitialFitnessParameter.ActualName = "InitialFitness";
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| 190 | Evaluator.InitialPredictionParameter.ActualName = "InitialPrediction";
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| 191 |
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| 192 | coveringSolutionCreator.ChangeSymbolProbabilityParameter.ActualName = ChangeSymbolProbabilityInCoveringParameter.Name;
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| 193 | coveringSolutionCreator.CoverClassifierParameter.ActualName = ClassifierFetcher.CurrentClassifierToMatchParameter.ActualName;
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| 194 | coveringSolutionCreator.CreatedClassifierParameter.ActualName = "CombinedIntegerVector";
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| 195 |
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| 196 | ClassifierFetcher.ProblemDataParameter.ActualName = ProblemDataParameter.Name;
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| 197 |
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| 198 | ActionExecuter.CurrentClassifierToMatchParameter.ActualName = ClassifierFetcher.CurrentClassifierToMatchParameter.ActualName;
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| 199 | ActionExecuter.NegativeRewardParameter.ActualName = NegativeRewardParameter.Name;
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| 200 | ActionExecuter.PositiveRewardParameter.ActualName = PositiveRewardParameter.Name;
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| 201 |
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| 202 | ActionSetSubsumptionOperator.ClassifiersParameter.ActualName = "CombinedIntegerVector";
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| 203 |
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| 204 | SetProblemDataSpecificParameters();
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| 205 | ThetaMinimalNumberOfActions.Value = PossibleActions.Count;
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| 206 |
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| 207 | InitializeOperators();
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| 208 |
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| 209 | problemData.Changed += new System.EventHandler(problemData_Changed);
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| 210 | }
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| 211 |
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| 212 | private void problemData_Changed(object sender, System.EventArgs e) {
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| 213 | SetProblemDataSpecificParameters();
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| 214 | }
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| 215 |
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| 216 | private void SetProblemDataSpecificParameters() {
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| 217 | SolutionCreator.ActionPartLengthParameter.ActualName = ProblemData.ActionLengthParameter.Name;
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| 218 | SolutionCreator.LengthParameter.ActualName = ProblemData.LengthParameter.Name;
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| 219 | SolutionCreator.BoundsParameter.ActualName = ProblemData.BoundsParameter.Name;
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| 220 |
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| 221 | SetPossibleActions();
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| 222 | }
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| 223 |
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| 224 | private void InitializeOperators() {
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| 225 | Operators.Add(new BestTrainingXCSSolutionAnalyzer());
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| 226 | Operators.Add(new CurrentXCSSolutionAnalyzer());
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| 227 |
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| 228 | ParameterizeAnalyzers();
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| 229 | }
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| 230 |
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| 231 | private void ParameterizeAnalyzers() {
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| 232 | foreach (XCSSolutionAnalyzer xcsAnalyzer in Operators.Where(x => x is XCSSolutionAnalyzer)) {
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| 233 | xcsAnalyzer.ClassifierParameter.ActualName = SolutionCreator.CombinedIntegerVectorParameter.ActualName;
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| 234 | xcsAnalyzer.PredictionParameter.ActualName = Evaluator.PredictionParameter.ActualName;
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| 235 | xcsAnalyzer.ErrorParameter.ActualName = Evaluator.ErrorParameter.ActualName;
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| 236 | xcsAnalyzer.FitnessParameter.ActualName = Evaluator.FitnessParameter.ActualName;
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| 237 | xcsAnalyzer.ExperienceParameter.ActualName = Evaluator.ExperienceParameter.ActualName;
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| 238 | xcsAnalyzer.AverageActionSetSizeParameter.ActualName = Evaluator.AverageActionSetSizeParameter.ActualName;
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| 239 | xcsAnalyzer.NumerosityParameter.ActualName = Evaluator.NumerosityParameter.ActualName;
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| 240 | xcsAnalyzer.TimestampParameter.ActualName = Evaluator.TimestampParameter.ActualName;
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| 241 | xcsAnalyzer.ProblemDataParameter.ActualName = ProblemDataParameter.Name;
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| 242 | xcsAnalyzer.ResultsParameter.ActualName = "Results";
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| 243 | }
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| 244 | }
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| 245 |
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| 246 | private void SetPossibleActions() {
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| 247 | //get bounds of action
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| 248 | IntMatrix actionBounds = GetElementsOfBoundsForAction(ProblemData.Bounds, ProblemData.Length.Value, ProblemData.ActionLength.Value);
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| 249 | int actionLength = ProblemData.ActionLength.Value;
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| 250 | int start = ProblemData.Length.Value - actionLength;
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| 251 | int[] elements = new int[actionLength];
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| 252 | int[] curPos = new int[actionLength];
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| 253 | bool done = false;
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| 254 | //initialize curPos
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| 255 | for (int i = 0; i < actionBounds.Rows; i++) {
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| 256 | curPos[i] = actionBounds[i, 0];
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| 257 | }
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| 258 | PossibleActions.Clear();
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| 259 | PossibleActionsConcreteClass.Clear();
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| 260 | while (!done) {
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| 261 | PossibleActions.Add(new CombinedIntegerVector(curPos, actionLength, actionBounds));
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| 262 | PossibleActionsConcreteClass.Add(new CombinedIntegerVector(curPos, actionLength, actionBounds));
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| 263 | curPos = GetNextAction(curPos, actionBounds, out done);
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| 264 | }
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| 265 |
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| 266 | }
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| 267 |
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| 268 | private int[] GetNextAction(int[] curPos, IntMatrix actionBounds, out bool done) {
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| 269 | int cur = 0;
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| 270 | while (cur < curPos.Length) {
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| 271 | curPos[cur] += actionBounds.Columns < 3 ? 1 : actionBounds[cur, 2];
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| 272 | if (curPos[cur] >= actionBounds[cur, 1]) {
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| 273 | curPos[cur] = actionBounds[cur, 0];
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| 274 | cur++;
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| 275 | } else {
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| 276 | break;
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| 277 | }
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| 278 | }
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| 279 | done = cur >= curPos.Length;
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| 280 | return curPos;
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| 281 | }
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| 282 |
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| 283 | private IntMatrix GetElementsOfBoundsForAction(IntMatrix bounds, int length, int actionPartLength) {
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| 284 | IntMatrix actionBounds = new IntMatrix(actionPartLength, bounds.Columns);
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| 285 | int start = length - actionPartLength;
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| 286 | for (int i = start; i < length; i++) {
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| 287 | int pos = i % bounds.Rows;
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| 288 | for (int j = 0; j < bounds.Columns; j++) {
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| 289 | actionBounds[i - start, j] = bounds[pos, j];
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| 290 | }
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| 291 | }
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| 292 | return actionBounds;
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| 293 | }
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| 294 |
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| 295 | public void Load(ConditionActionClassificationProblemData data) {
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| 296 | Name = data.Name;
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| 297 | Description = data.Description;
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| 298 | ProblemData = data;
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| 299 | }
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| 300 | }
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| 301 | }
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