[9334] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2011 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;
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| 23 | using System.Collections.Generic;
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| 24 | using System.Linq;
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| 25 | using HeuristicLab.Common;
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| 26 | using HeuristicLab.Core;
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| 27 | using HeuristicLab.Data;
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| 28 | using HeuristicLab.Optimization;
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[9392] | 29 | using HeuristicLab.Optimization.Operators.LCS;
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[9334] | 30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 31 |
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| 32 | namespace HeuristicLab.Encodings.DecisionList {
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| 33 | [StorableClass]
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| 34 | [Item("DecisionListSolution", "Represents a DecisionList solution.")]
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| 35 | public class DecisionListSolution : ResultCollection, IDecisionListSolution {
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| 36 | private const string ModelResultName = "Model";
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| 37 | private const string ProblemDataResultName = "ProblemData";
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| 38 | private const string TrainingAccuracyResultName = "Accuracy (training)";
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| 39 | private const string TestAccuracyResultName = "Accuracy (test)";
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| 40 | private const string TrainingNumberOfAliveRulesName = "Number of alive rules (training)";
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[9392] | 41 | private const string TrainingAliveRulesName = "Alive Rules (training)";
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[9334] | 42 | //private const string TestNumberOfAliveRules = "Number of alive rules (test)";
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| 43 | private const string TrainingTheoryLengthName = "Theory Length (training)";
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| 44 | private const string TrainingExceptionsLengthName = "Exceptions Length (training)";
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| 45 |
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| 46 | public double TrainingAccuracy {
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| 47 | get { return ((PercentValue)this[TrainingAccuracyResultName].Value).Value; }
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| 48 | private set { ((PercentValue)this[TrainingAccuracyResultName].Value).Value = value; }
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| 49 | }
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| 50 | public double TestAccuracy {
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| 51 | get { return ((PercentValue)this[TestAccuracyResultName].Value).Value; }
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| 52 | private set { ((PercentValue)this[TestAccuracyResultName].Value).Value = value; }
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| 53 | }
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| 54 | public int TrainingNumberOfAliveRules {
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| 55 | get { return ((IntValue)this[TrainingNumberOfAliveRulesName].Value).Value; }
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| 56 | private set { ((IntValue)this[TrainingNumberOfAliveRulesName].Value).Value = value; }
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| 57 | }
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[9392] | 58 | public ItemSet<Rule> TrainingAliveRules {
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| 59 | get { return (ItemSet<Rule>)this[TrainingAliveRulesName].Value; }
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| 60 | private set { this[TrainingAliveRulesName].Value = value; }
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| 61 | }
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[9334] | 62 | public double TrainingTheoryLength {
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| 63 | get { return ((DoubleValue)this[TrainingTheoryLengthName].Value).Value; }
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| 64 | private set { ((DoubleValue)this[TrainingTheoryLengthName].Value).Value = value; }
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| 65 | }
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| 66 | public double TrainingExceptionsLength {
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| 67 | get { return ((DoubleValue)this[TrainingExceptionsLengthName].Value).Value; }
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| 68 | private set { ((DoubleValue)this[TrainingExceptionsLengthName].Value).Value = value; }
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| 69 | }
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| 70 |
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[9392] | 71 | public int Classes {
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| 72 | get { return ProblemData.Classes; }
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| 73 | }
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| 74 |
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[9334] | 75 | DecisionList IDecisionListSolution.Model {
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| 76 | get { return Model; }
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| 77 | }
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| 78 |
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| 79 | public DecisionList Model {
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| 80 | get { return (DecisionList)this[ModelResultName].Value; ; }
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| 81 | protected set {
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| 82 | if (this[ModelResultName].Value != value) {
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| 83 | if (value != null) {
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| 84 | this[ModelResultName].Value = value;
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| 85 | OnModelChanged();
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| 86 | }
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| 87 | }
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| 88 | }
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| 89 | }
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| 90 |
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[9392] | 91 | public IGAssistNichesProblemData ProblemData {
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| 92 | get { return (IGAssistNichesProblemData)this[ProblemDataResultName].Value; }
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[9334] | 93 | set {
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| 94 | if (this[ProblemDataResultName].Value != value) {
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| 95 | if (value != null) {
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| 96 | ProblemData.Changed -= new EventHandler(ProblemData_Changed);
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| 97 | this[ProblemDataResultName].Value = value;
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| 98 | ProblemData.Changed += new EventHandler(ProblemData_Changed);
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| 99 | OnProblemDataChanged();
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| 100 | }
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| 101 | }
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| 102 | }
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| 103 | }
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| 104 |
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| 105 | [StorableConstructor]
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| 106 | protected DecisionListSolution(bool deserializing) : base(deserializing) { }
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| 107 | protected DecisionListSolution(DecisionListSolution original, Cloner cloner)
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| 108 | : base(original, cloner) {
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| 109 | name = original.Name;
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| 110 | description = original.Description;
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| 111 | }
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[9392] | 112 | public DecisionListSolution(DecisionList model, IGAssistNichesProblemData problemData)
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[9334] | 113 | : base() {
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| 114 | name = ItemName;
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| 115 | description = ItemDescription;
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| 116 | Add(new Result(ModelResultName, "Decision List.", model));
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| 117 | Add(new Result(ProblemDataResultName, "The problem data.", problemData));
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| 118 | Add(new Result(TrainingAccuracyResultName, "Accuracy of the model on the training partition (percentage of correctly classified instances).", new PercentValue()));
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| 119 | Add(new Result(TestAccuracyResultName, "Accuracy of the model on the test partition (percentage of correctly classified instances).", new PercentValue()));
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| 120 | Add(new Result(TrainingNumberOfAliveRulesName, "", new IntValue()));
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[9392] | 121 | Add(new Result(TrainingAliveRulesName, "", new ItemSet<Rule>()));
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[9334] | 122 | Add(new Result(TrainingTheoryLengthName, "", new DoubleValue()));
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| 123 | Add(new Result(TrainingExceptionsLengthName, "", new DoubleValue()));
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| 124 |
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| 125 | problemData.Changed += new EventHandler(ProblemData_Changed);
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| 126 |
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| 127 | RecalculateResults();
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| 128 | }
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| 129 | public override IDeepCloneable Clone(Cloner cloner) {
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| 130 | return new DecisionListSolution(this, cloner);
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| 131 | }
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| 132 |
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| 133 | private void RecalculateResults() {
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| 134 | var originalTrainingCondition = ProblemData.FetchInput(ProblemData.TrainingIndices);
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| 135 | var originalTestCondition = ProblemData.FetchInput(ProblemData.TestIndices);
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[9392] | 136 | ItemSet<Rule> aliveRules;
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[9334] | 137 | double theoryLength;
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[9392] | 138 | var estimatedTraining = Model.Evaluate(originalTrainingCondition, out aliveRules, out theoryLength);
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| 139 | TrainingNumberOfAliveRules = aliveRules.Count;
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| 140 | TrainingAliveRules = aliveRules;
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[9334] | 141 | TrainingTheoryLength = theoryLength;
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| 142 | var estimatedTest = Model.Evaluate(originalTestCondition);
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| 143 |
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| 144 | var originalTrainingAction = ProblemData.FetchAction(ProblemData.TrainingIndices);
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| 145 | var originalTestAction = ProblemData.FetchAction(ProblemData.TestIndices);
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| 146 |
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| 147 | TrainingAccuracy = CalculateAccuracy(originalTrainingAction, estimatedTraining);
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| 148 | TestAccuracy = CalculateAccuracy(originalTestAction, estimatedTest);
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| 149 |
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| 150 | TrainingExceptionsLength = 105.0 - TrainingAccuracy * 100.0;
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| 151 | }
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| 152 |
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[9392] | 153 | public static double CalculateAccuracy(IEnumerable<IGAssistNiche> original, IEnumerable<IGAssistNiche> estimated) {
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[9334] | 154 | double correctClassified = 0;
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| 155 |
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| 156 | double rows = original.Count();
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| 157 | var originalEnumerator = original.GetEnumerator();
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| 158 | var estimatedActionEnumerator = estimated.GetEnumerator();
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| 159 |
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| 160 | while (originalEnumerator.MoveNext() && estimatedActionEnumerator.MoveNext()) {
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[9392] | 161 | if (originalEnumerator.Current != null && estimatedActionEnumerator.Current != null
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| 162 | && originalEnumerator.Current.SameNiche(estimatedActionEnumerator.Current)) {
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[9334] | 163 | correctClassified++;
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| 164 | }
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| 165 | }
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| 166 | return correctClassified / rows;
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| 167 | }
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| 168 |
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| 169 | private void ProblemData_Changed(object sender, EventArgs e) {
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| 170 | OnProblemDataChanged();
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| 171 | }
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| 172 |
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| 173 | public event EventHandler ModelChanged;
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| 174 | protected virtual void OnModelChanged() {
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| 175 | RecalculateResults();
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| 176 | var listeners = ModelChanged;
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| 177 | if (listeners != null) listeners(this, EventArgs.Empty);
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| 178 | }
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| 179 |
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| 180 | public event EventHandler ProblemDataChanged;
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| 181 | protected virtual void OnProblemDataChanged() {
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| 182 | RecalculateResults();
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| 183 | var listeners = ProblemDataChanged;
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| 184 | if (listeners != null) listeners(this, EventArgs.Empty);
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| 185 | }
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| 186 |
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| 187 | #region INamedItem Members
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| 188 | [Storable]
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| 189 | protected string name;
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| 190 | public string Name {
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| 191 | get { return name; }
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| 192 | set {
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| 193 | if (!CanChangeName) throw new NotSupportedException("Name cannot be changed.");
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| 194 | if (!(name.Equals(value) || (value == null) && (name == string.Empty))) {
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| 195 | CancelEventArgs<string> e = value == null ? new CancelEventArgs<string>(string.Empty) : new CancelEventArgs<string>(value);
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| 196 | OnNameChanging(e);
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| 197 | if (!e.Cancel) {
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| 198 | name = value == null ? string.Empty : value;
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| 199 | OnNameChanged();
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| 200 | }
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| 201 | }
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| 202 | }
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| 203 | }
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| 204 | public virtual bool CanChangeName {
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| 205 | get { return true; }
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| 206 | }
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| 207 | [Storable]
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| 208 | protected string description;
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| 209 | public string Description {
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| 210 | get { return description; }
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| 211 | set {
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| 212 | if (!CanChangeDescription) throw new NotSupportedException("Description cannot be changed.");
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| 213 | if (!(description.Equals(value) || (value == null) && (description == string.Empty))) {
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| 214 | description = value == null ? string.Empty : value;
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| 215 | OnDescriptionChanged();
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| 216 | }
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| 217 | }
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| 218 | }
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| 219 | public virtual bool CanChangeDescription {
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| 220 | get { return true; }
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| 221 | }
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| 222 |
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| 223 | public override string ToString() {
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| 224 | return Name;
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| 225 | }
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| 226 |
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| 227 | public event EventHandler<CancelEventArgs<string>> NameChanging;
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| 228 | protected virtual void OnNameChanging(CancelEventArgs<string> e) {
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| 229 | var handler = NameChanging;
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| 230 | if (handler != null) handler(this, e);
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| 231 | }
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| 232 |
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| 233 | public event EventHandler NameChanged;
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| 234 | protected virtual void OnNameChanged() {
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| 235 | var handler = NameChanged;
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| 236 | if (handler != null) handler(this, EventArgs.Empty);
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| 237 | OnToStringChanged();
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| 238 | }
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| 239 |
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| 240 | public event EventHandler DescriptionChanged;
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| 241 | protected virtual void OnDescriptionChanged() {
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| 242 | var handler = DescriptionChanged;
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| 243 | if (handler != null) handler(this, EventArgs.Empty);
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| 244 | }
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| 245 | #endregion
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| 246 | }
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| 247 | } |
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