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.DecisionList;
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27 | using HeuristicLab.Encodings.DecisionList.Interfaces;
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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.DecisionListClassification {
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34 | [Item("DecisionListClassificationProblem", "")]
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35 | [StorableClass]
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36 | [Creatable("Problems")]
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37 | public class DecisionListClassificationProblem : HeuristicOptimizationProblem<IDecisionListEvaluator, IDecisionListCreator>, IDecisionListClassificationProblem {
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38 |
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39 | #region parameter properties
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40 | public IFixedValueParameter<BoolValue> MaximizationParameter {
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41 | get { return (IFixedValueParameter<BoolValue>)Parameters["Maximization"]; }
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42 | }
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43 | IParameter ISingleObjectiveHeuristicOptimizationProblem.MaximizationParameter {
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44 | get { return MaximizationParameter; }
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45 | }
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46 | public IFixedValueParameter<DoubleValue> BestKnownQualityParameter {
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47 | get { return (IFixedValueParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
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48 | }
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49 | IParameter ISingleObjectiveHeuristicOptimizationProblem.BestKnownQualityParameter {
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50 | get { return BestKnownQualityParameter; }
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51 | }
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52 | public IValueParameter<IDecisionListClassificationProblemData> ProblemDataParameter {
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53 | get { return (IValueParameter<IDecisionListClassificationProblemData>)Parameters["ProblemData"]; }
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54 | }
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55 | public IFixedValueParameter<IntValue> SizePenaltyMinRulesParameter {
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56 | get { return (IFixedValueParameter<IntValue>)Parameters["SizePenaltyMinRules"]; }
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57 | }
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58 | public IFixedValueParameter<IntValue> ActivationIterationParameter {
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59 | get { return (IFixedValueParameter<IntValue>)Parameters["ActivationIteration"]; }
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60 | }
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61 | public IFixedValueParameter<DoubleValue> InitialTheoryLengthRatioParameter {
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62 | get { return (IFixedValueParameter<DoubleValue>)Parameters["InitialTheoryLengthRatio"]; }
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63 | }
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64 | public IFixedValueParameter<DoubleValue> WeightRelaxFactorParameter {
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65 | get { return (IFixedValueParameter<DoubleValue>)Parameters["WeightRelaxFactor"]; }
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66 | }
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67 |
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68 | public IDecisionListClassificationProblemData ProblemData {
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69 | get { return ProblemDataParameter.Value; }
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70 | protected set {
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71 | ProblemDataParameter.Value = value;
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72 | }
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73 | }
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74 | IParameter IDecisionListClassificationProblem.ProblemDataParameter {
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75 | get { return ProblemDataParameter; }
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76 | }
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77 | IDecisionListClassificationProblemData IDecisionListClassificationProblem.ProblemData {
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78 | get { return ProblemData; }
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79 | }
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80 |
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81 | IDecisionListEvaluator IDecisionListClassificationProblem.Evaluator {
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82 | get { return Evaluator; }
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83 | }
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84 | ISingleObjectiveEvaluator ISingleObjectiveHeuristicOptimizationProblem.Evaluator {
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85 | get { return Evaluator; }
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86 | }
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87 | #endregion
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88 |
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89 | [StorableConstructor]
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90 | protected DecisionListClassificationProblem(bool deserializing) : base(deserializing) { }
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91 | protected DecisionListClassificationProblem(DecisionListClassificationProblem original, Cloner cloner)
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92 | : base(original, cloner) {
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93 | }
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94 |
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95 | public DecisionListClassificationProblem()
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96 | : this(new DecisionListClassificationProblemData(new Dataset(DecisionListClassificationProblemData.defaultVariableNames, DecisionListClassificationProblemData.defaultData),
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97 | DecisionListClassificationProblemData.defaultVariableNames.Take(DecisionListClassificationProblemData.defaultVariableNames.Length - 1), DecisionListClassificationProblemData.defaultVariableNames.Last()),
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98 | new MDLEvaluator(), new UniformRandomDecisionListCreator()) { }
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99 |
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100 | public DecisionListClassificationProblem(IDecisionListClassificationProblemData problemData, IDecisionListEvaluator decisionlistEvaluator, IDecisionListCreator decisionListCreator)
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101 | : base(decisionlistEvaluator, decisionListCreator) {
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102 | Parameters.Add(new ValueParameter<IDecisionListClassificationProblemData>("ProblemData", "", problemData));
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103 | Parameters.Add(new FixedValueParameter<BoolValue>("Maximization", "", new BoolValue(true)));
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104 | Parameters.Add(new FixedValueParameter<DoubleValue>("BestKnownQuality", "", new DoubleValue(0.5)));
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105 | Parameters.Add(new FixedValueParameter<IntValue>("SizePenaltyMinRules", "", new IntValue(4)));
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106 | Parameters.Add(new FixedValueParameter<IntValue>("ActivationIteration", "", new IntValue(25)));
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107 | Parameters.Add(new FixedValueParameter<DoubleValue>("InitialTheoryLengthRatio", "", new DoubleValue(0.075)));
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108 | Parameters.Add(new FixedValueParameter<DoubleValue>("WeightRelaxFactor", "", new DoubleValue(0.9)));
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109 |
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110 | Evaluator.SizePenaltyMinRulesParameter.ActualName = "SizePenaltyMinRules";
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111 | // do differently
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112 | ((MDLEvaluator)Evaluator).MDLCalculatorParameter.Value = new MDLCalculator(ActivationIterationParameter.Value.Value, InitialTheoryLengthRatioParameter.Value.Value, WeightRelaxFactorParameter.Value.Value);
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113 | }
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114 | public override IDeepCloneable Clone(Cloner cloner) {
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115 | return new DecisionListClassificationProblem(this, cloner);
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116 | }
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117 | }
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118 | }
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