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 |
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33 | namespace HeuristicLab.Problems.ConditionActionClassification {
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34 | [StorableClass]
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35 | public class ConditionActionClassificationProblem : HeuristicOptimizationProblem<XCSEvaluator, UniformRandomCombinedIntegerVectorCreator>, IConditionActionProblem {
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36 | private const string ClassifierFetcherParameterName = "ClassifierFetcher";
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37 | private const string ActionExecuterParameterName = "ActionExecuter";
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38 |
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39 | IXCSEvaluator IConditionActionProblem.Evaluator {
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40 | get { return Evaluator; }
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41 | }
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42 |
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43 | #region parameter properties
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44 | public IValueParameter<ConditionActionClassificationProblemData> ProblemDataParameter {
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45 | get { return (IValueParameter<ConditionActionClassificationProblemData>)Parameters["ProblemData"]; }
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46 | }
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47 | public IValueParameter<ICoveringSolutionCreator> CoveringSolutionCreatorParameter {
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48 | get { return (IValueParameter<ICoveringSolutionCreator>)Parameters["CoveringSolutionCreator"]; }
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49 | }
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50 | public IFixedValueParameter<PercentValue> ChangeSymbolProbabilityInCoveringParameter {
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51 | get { return (IFixedValueParameter<PercentValue>)Parameters["ChangeSymbolProbabilityInCovering"]; }
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52 | }
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53 | public IFixedValueParameter<DoubleValue> PositiveRewardParameter {
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54 | get { return (IFixedValueParameter<DoubleValue>)Parameters["PositiveReward"]; }
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55 | }
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56 | public IFixedValueParameter<DoubleValue> NegativeRewardParameter {
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57 | get { return (IFixedValueParameter<DoubleValue>)Parameters["NegativeReward"]; }
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58 | }
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59 | public IFixedValueParameter<DoubleValue> InitialPredictionParameter {
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60 | get { return (IFixedValueParameter<DoubleValue>)Parameters["InitialPrediction"]; }
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61 | }
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62 | public IFixedValueParameter<DoubleValue> InitialErrorParameter {
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63 | get { return (IFixedValueParameter<DoubleValue>)Parameters["InitialError"]; }
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64 | }
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65 | public IFixedValueParameter<DoubleValue> InitialFitnessParameter {
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66 | get { return (IFixedValueParameter<DoubleValue>)Parameters["InitialFitness"]; }
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67 | }
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68 | public IFixedValueParameter<ItemSet<IClassifier>> PossibleActionsParameter {
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69 | get { return (IFixedValueParameter<ItemSet<IClassifier>>)Parameters["PossibleActions"]; }
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70 | }
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71 | public IFixedValueParameter<IntValue> ThetaMinimalNumberOfActionsParameter {
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72 | get { return (IFixedValueParameter<IntValue>)Parameters["ThetaMinimalNumberOfActions"]; }
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73 | }
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74 | //for test purposes
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75 | public IFixedValueParameter<IntValue> LengthParameter {
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76 | get { return (IFixedValueParameter<IntValue>)Parameters["Length"]; }
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77 | }
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78 | public IFixedValueParameter<IntValue> ActionPartLengthParameter {
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79 | get { return (IFixedValueParameter<IntValue>)Parameters["ActionPartLength"]; }
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80 | }
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81 | public IFixedValueParameter<IntMatrix> BoundsParameter {
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82 | get { return (IFixedValueParameter<IntMatrix>)Parameters["Bounds"]; }
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83 | }
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84 | #endregion
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85 |
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86 | #region properties
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87 | IParameter IConditionActionProblem.ProblemDataParameter {
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88 | get { return ProblemDataParameter; }
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89 | }
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90 | IConditionActionProblemData IConditionActionProblem.ProblemData {
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91 | get { return ProblemData; }
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92 | }
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93 | public ConditionActionClassificationProblemData ProblemData {
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94 | get { return ProblemDataParameter.Value; }
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95 | }
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96 | IParameter IConditionActionProblem.PossibleActionsParameter {
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97 | get { return PossibleActionsParameter; }
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98 | }
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99 | IItemSet<IClassifier> IConditionActionProblem.PossibleActions {
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100 | get { return PossibleActions; }
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101 | }
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102 | public ItemSet<IClassifier> PossibleActions {
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103 | get { return PossibleActionsParameter.Value; }
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104 | }
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105 | public IActionExecuter ActionExecuter {
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106 | get { return ActionExecuterParameter.Value; }
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107 | }
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108 | public ValueParameter<IActionExecuter> ActionExecuterParameter {
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109 | get { return (ValueParameter<IActionExecuter>)Parameters[ActionExecuterParameterName]; }
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110 | }
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111 | IParameter IConditionActionProblem.ActionExecuterParameter { get { return ActionExecuterParameter; } }
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112 | public CombinedIntegerVectorClassifierFetcher ClassifierFetcher {
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113 | get { return ClassifierFetcherParameter.Value; }
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114 | }
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115 | public ValueParameter<CombinedIntegerVectorClassifierFetcher> ClassifierFetcherParameter {
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116 | get { return (ValueParameter<CombinedIntegerVectorClassifierFetcher>)Parameters[ClassifierFetcherParameterName]; }
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117 | }
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118 | IClassifierFetcher IConditionActionProblem.ClassifierFetcher { get { return ClassifierFetcher; } }
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119 | IParameter IConditionActionProblem.ClassifierFetcherParameter { get { return ClassifierFetcherParameter; } }
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120 |
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121 | private IntValue ThetaMinimalNumberOfActions {
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122 | get { return ThetaMinimalNumberOfActionsParameter.Value; }
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123 | }
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124 | IParameter IConditionActionProblem.ThetaMinimalNumberOfActionsParameter {
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125 | get { return ThetaMinimalNumberOfActionsParameter; }
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126 | }
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127 | public ICoveringSolutionCreator CoveringSolutionCreator {
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128 | get { return CoveringSolutionCreatorParameter.Value; }
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129 | }
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130 | IParameter IConditionActionProblem.CoveringSolutionCreatorParameter {
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131 | get { return CoveringSolutionCreatorParameter; }
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132 | }
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133 | #endregion
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134 |
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135 | [StorableConstructor]
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136 | protected ConditionActionClassificationProblem(bool deserializing) : base(deserializing) { }
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137 | protected ConditionActionClassificationProblem(ConditionActionClassificationProblem original, Cloner cloner)
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138 | : base(original, cloner) {
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139 | }
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140 | public override IDeepCloneable Clone(Cloner cloner) {
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141 | return new ConditionActionClassificationProblem(this, cloner);
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142 | }
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143 |
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144 | public ConditionActionClassificationProblem() :
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145 | this(new ConditionActionClassificationProblemData(new Dataset(ConditionActionClassificationProblemData.defaultVariableNames, ConditionActionClassificationProblemData.defaultData),
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146 | ConditionActionClassificationProblemData.defaultVariableNames.Take(ConditionActionClassificationProblemData.defaultVariableNames.Length - 1), ConditionActionClassificationProblemData.defaultVariableNames.Last().ToEnumerable()),
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147 | new XCSEvaluator(), new UniformRandomCombinedIntegerVectorCreator(), new CombinedIntegerVectorCoveringCreator()) {
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148 | }
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149 |
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150 | public ConditionActionClassificationProblem(ConditionActionClassificationProblemData problemData, XCSEvaluator evaluator, UniformRandomCombinedIntegerVectorCreator solutionCreator, ICoveringSolutionCreator coveringSolutionCreator)
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151 | : base(evaluator, solutionCreator) {
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152 | Parameters.Add(new FixedValueParameter<IntValue>("Length", "The operator to create a solution.", new IntValue(7)));
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153 | Parameters.Add(new FixedValueParameter<IntValue>("ActionPartLength", "The operator to create a solution.", new IntValue(1)));
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154 | int[,] elements = new int[,] { { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 2 } };
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155 | Parameters.Add(new FixedValueParameter<IntMatrix>("Bounds", "The operator to create a solution.", new IntMatrix(elements)));
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156 | Parameters.Add(new ValueParameter<ConditionActionClassificationProblemData>("ProblemData", "", problemData));
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157 | Parameters.Add(new FixedValueParameter<DoubleValue>("PositiveReward", "", new DoubleValue(1000)));
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158 | Parameters.Add(new FixedValueParameter<DoubleValue>("NegativeReward", "", new DoubleValue(0)));
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159 | Parameters.Add(new FixedValueParameter<DoubleValue>("InitialPrediction", "Initial Presiction", new DoubleValue(0)));
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160 | Parameters.Add(new FixedValueParameter<DoubleValue>("InitialError", "Initial Error", new DoubleValue(0)));
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161 | Parameters.Add(new FixedValueParameter<DoubleValue>("InitialFitness", "Initial Fitness", new DoubleValue(0)));
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162 |
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163 | Parameters.Add(new ValueParameter<IActionExecuter>(ActionExecuterParameterName, "", new ActionExecuter()));
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164 | Parameters.Add(new ValueParameter<CombinedIntegerVectorClassifierFetcher>(ClassifierFetcherParameterName, "", new CombinedIntegerVectorClassifierFetcher()));
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165 | Parameters.Add(new FixedValueParameter<ItemSet<IClassifier>>("PossibleActions"));
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166 | Parameters.Add(new FixedValueParameter<IntValue>("ThetaMinimalNumberOfActions", "Minimal number of actions, which have to be present in the match set, or else covering will occure."));
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167 |
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168 | Parameters.Add(new ValueParameter<ICoveringSolutionCreator>("CoveringSolutionCreator", "", coveringSolutionCreator));
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169 | Parameters.Add(new FixedValueParameter<PercentValue>("ChangeSymbolProbabilityInCovering", "", new PercentValue(0.5)));
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170 |
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171 | Evaluator.InitialErrorParameter.ActualName = "InitialError";
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172 | Evaluator.InitialFitnessParameter.ActualName = "InitialFitness";
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173 | Evaluator.InitialPredictionParameter.ActualName = "InitialPrediction";
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174 |
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175 | SolutionCreator.ActionPartLengthParameter.ActualName = ActionPartLengthParameter.Name;
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176 | SolutionCreator.LengthParameter.ActualName = LengthParameter.Name;
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177 | SolutionCreator.BoundsParameter.ActualName = BoundsParameter.Name;
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178 |
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179 | coveringSolutionCreator.ChangeSymbolProbabilityParameter.ActualName = ChangeSymbolProbabilityInCoveringParameter.Name;
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180 | coveringSolutionCreator.CoverClassifierParameter.ActualName = ClassifierFetcher.CurrentClassifierToMatchParameter.ActualName;
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181 | coveringSolutionCreator.CreatedClassifierParameter.ActualName = "CombinedIntegerVector";
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182 |
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183 | ClassifierFetcher.ActionPartLengthParameter.ActualName = ActionPartLengthParameter.Name;
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184 | ClassifierFetcher.BoundsParameter.ActualName = BoundsParameter.Name;
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185 | ClassifierFetcher.ProblemDataParameter.ActualName = ProblemDataParameter.Name;
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186 |
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187 | ActionExecuter.CurrentClassifierToMatchParameter.ActualName = ClassifierFetcher.CurrentClassifierToMatchParameter.ActualName;
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188 | ActionExecuter.NegativeRewardParameter.ActualName = NegativeRewardParameter.Name;
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189 | ActionExecuter.PositiveRewardParameter.ActualName = PositiveRewardParameter.Name;
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190 |
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191 | SetPossibleActions();
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192 | ThetaMinimalNumberOfActions.Value = PossibleActions.Count;
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193 |
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194 | BoundsParameter.ValueChanged += new System.EventHandler(BoundsParameter_ValueChanged);
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195 | LengthParameter.ValueChanged += new System.EventHandler(LengthParameter_ValueChanged);
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196 | ActionPartLengthParameter.ValueChanged += new System.EventHandler(ActionPartLengthParameter_ValueChanged);
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197 | }
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198 |
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199 | #region event handler
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200 | private void ActionPartLengthParameter_ValueChanged(object sender, System.EventArgs e) {
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201 | SetPossibleActions();
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202 | }
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203 | private void LengthParameter_ValueChanged(object sender, System.EventArgs e) {
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204 | SetPossibleActions();
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205 | }
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206 | private void BoundsParameter_ValueChanged(object sender, System.EventArgs e) {
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207 | SetPossibleActions();
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208 | }
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209 | #endregion
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210 |
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211 | private void SetPossibleActions() {
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212 | //get bounds of action
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213 | IntMatrix actionBounds = GetElementsOfBoundsForAction(BoundsParameter.Value, LengthParameter.Value.Value, ActionPartLengthParameter.Value.Value);
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214 | int actionLength = ActionPartLengthParameter.Value.Value;
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215 | int start = LengthParameter.Value.Value - actionLength;
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216 | int[] elements = new int[actionLength];
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217 | int[] curPos = new int[actionLength];
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218 | bool done = false;
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219 | //initialize curPos
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220 | for (int i = 0; i < actionBounds.Rows; i++) {
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221 | curPos[i] = actionBounds[i, 0];
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222 | }
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223 | PossibleActions.Clear();
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224 | while (!done) {
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225 | PossibleActions.Add(new CombinedIntegerVector(curPos, actionLength, actionBounds));
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226 | curPos = GetNextAction(curPos, actionBounds, out done);
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227 | }
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228 |
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229 | }
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230 |
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231 | private int[] GetNextAction(int[] curPos, IntMatrix actionBounds, out bool done) {
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232 | int cur = 0;
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233 | while (cur < curPos.Length) {
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234 | curPos[cur] += actionBounds.Columns < 3 ? 1 : actionBounds[cur, 2];
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235 | if (curPos[cur] >= actionBounds[cur, 1]) {
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236 | curPos[cur] = actionBounds[cur, 0];
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237 | cur++;
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238 | } else {
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239 | break;
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240 | }
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241 | }
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242 | done = cur >= curPos.Length;
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243 | return curPos;
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244 | }
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245 |
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246 | private IntMatrix GetElementsOfBoundsForAction(IntMatrix bounds, int length, int actionPartLength) {
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247 | IntMatrix actionBounds = new IntMatrix(actionPartLength, bounds.Columns);
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248 | int start = length - actionPartLength;
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249 | for (int i = start; i < length; i++) {
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250 | int pos = i % bounds.Rows;
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251 | for (int j = 0; j < bounds.Columns; j++) {
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252 | actionBounds[i - start, j] = bounds[pos, j];
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253 | }
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254 | }
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255 | return actionBounds;
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256 | }
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257 | }
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258 | }
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