[13672] | 1 | #region License Information
|
---|
| 2 | /* HeuristicLab
|
---|
[17226] | 3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
|
---|
[13672] | 4 | *
|
---|
| 5 | * This file is part of HeuristicLab.
|
---|
| 6 | *
|
---|
| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
|
---|
| 8 | * it under the terms of the GNU General Public License as published by
|
---|
| 9 | * the Free Software Foundation, either version 3 of the License, or
|
---|
| 10 | * (at your option) any later version.
|
---|
| 11 | *
|
---|
| 12 | * HeuristicLab is distributed in the hope that it will be useful,
|
---|
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 15 | * GNU General Public License for more details.
|
---|
| 16 | *
|
---|
| 17 | * You should have received a copy of the GNU General Public License
|
---|
| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
|
---|
| 19 | */
|
---|
| 20 | #endregion
|
---|
[17690] | 21 |
|
---|
[13672] | 22 | using System;
|
---|
[17320] | 23 | using System.Threading;
|
---|
[16807] | 24 | using HEAL.Attic;
|
---|
[17225] | 25 | using HeuristicLab.Analysis;
|
---|
[13421] | 26 | using HeuristicLab.Common;
|
---|
| 27 | using HeuristicLab.Core;
|
---|
| 28 | using HeuristicLab.Data;
|
---|
| 29 | using HeuristicLab.Encodings.RealVectorEncoding;
|
---|
| 30 | using HeuristicLab.Optimization;
|
---|
| 31 | using HeuristicLab.Parameters;
|
---|
[13620] | 32 | using HeuristicLab.Problems.Instances;
|
---|
[13421] | 33 |
|
---|
[14111] | 34 | namespace HeuristicLab.Problems.TestFunctions.MultiObjective {
|
---|
[16723] | 35 | [StorableType("AB0C6A73-C432-46FD-AE3B-9841EAB2478C")]
|
---|
[14073] | 36 | [Creatable(CreatableAttribute.Categories.Problems, Priority = 95)]
|
---|
| 37 | [Item("Test Function (multi-objective)", "Test functions with real valued inputs and multiple objectives.")]
|
---|
[17225] | 38 | public class MultiObjectiveTestFunctionProblem : RealVectorMultiObjectiveProblem, IProblemInstanceConsumer<MOTFData>, IMultiObjectiveProblemDefinition<RealVectorEncoding, RealVector> {
|
---|
[13672] | 39 | #region Parameter Properties
|
---|
[14073] | 40 | public IFixedValueParameter<IntValue> ObjectivesParameter {
|
---|
[13672] | 41 | get { return (IFixedValueParameter<IntValue>)Parameters["Objectives"]; }
|
---|
[13421] | 42 | }
|
---|
| 43 | public IValueParameter<IMultiObjectiveTestFunction> TestFunctionParameter {
|
---|
| 44 | get { return (IValueParameter<IMultiObjectiveTestFunction>)Parameters["TestFunction"]; }
|
---|
| 45 | }
|
---|
| 46 | #endregion
|
---|
| 47 |
|
---|
| 48 | #region Properties
|
---|
[16950] | 49 | public new int Objectives {
|
---|
[13672] | 50 | get { return ObjectivesParameter.Value.Value; }
|
---|
| 51 | set { ObjectivesParameter.Value.Value = value; }
|
---|
[13421] | 52 | }
|
---|
| 53 | public IMultiObjectiveTestFunction TestFunction {
|
---|
| 54 | get { return TestFunctionParameter.Value; }
|
---|
| 55 | set { TestFunctionParameter.Value = value; }
|
---|
| 56 | }
|
---|
| 57 | #endregion
|
---|
| 58 |
|
---|
| 59 | [StorableConstructor]
|
---|
[16723] | 60 | protected MultiObjectiveTestFunctionProblem(StorableConstructorFlag _) : base(_) { }
|
---|
[14073] | 61 | [StorableHook(HookType.AfterDeserialization)]
|
---|
| 62 | private void AfterDeserialization() {
|
---|
| 63 | RegisterEventHandlers();
|
---|
| 64 | }
|
---|
| 65 |
|
---|
[17225] | 66 | protected MultiObjectiveTestFunctionProblem(MultiObjectiveTestFunctionProblem original, Cloner cloner) : base(original, cloner) {
|
---|
[13421] | 67 | RegisterEventHandlers();
|
---|
| 68 | }
|
---|
[14073] | 69 | public override IDeepCloneable Clone(Cloner cloner) {
|
---|
| 70 | return new MultiObjectiveTestFunctionProblem(this, cloner);
|
---|
| 71 | }
|
---|
| 72 |
|
---|
[17225] | 73 | public MultiObjectiveTestFunctionProblem() : base() {
|
---|
[13672] | 74 | Parameters.Add(new FixedValueParameter<IntValue>("Objectives", "The dimensionality of the solution vector (number of objectives).", new IntValue(2)));
|
---|
[13421] | 75 | Parameters.Add(new ValueParameter<IMultiObjectiveTestFunction>("TestFunction", "The function that is to be optimized.", new Fonseca()));
|
---|
| 76 |
|
---|
[13725] | 77 | BestKnownFrontParameter.Hidden = true;
|
---|
[17690] | 78 | BestKnownFrontParameter.ReadOnly = true;
|
---|
| 79 | ReferencePointParameter.ReadOnly = true;
|
---|
[13421] | 80 |
|
---|
[14073] | 81 | UpdateParameterValues();
|
---|
[13421] | 82 | InitializeOperators();
|
---|
| 83 | RegisterEventHandlers();
|
---|
| 84 | }
|
---|
[14073] | 85 |
|
---|
| 86 | private void RegisterEventHandlers() {
|
---|
[17690] | 87 | IntValueParameterChangeHandler.Create(ObjectivesParameter, ObjectivesOnChanged);
|
---|
| 88 | ParameterChangeHandler<IMultiObjectiveTestFunction>.Create(TestFunctionParameter, TestFunctionOnChanged);
|
---|
[13421] | 89 | }
|
---|
| 90 |
|
---|
[14073] | 91 |
|
---|
[16807] | 92 | public override void Analyze(RealVector[] solutions, double[][] qualities, ResultCollection results, IRandom random) {
|
---|
| 93 | base.Analyze(solutions, qualities, results, random);
|
---|
[17225] | 94 | if (results.ContainsKey("Pareto Front"))
|
---|
[13725] | 95 | ((DoubleMatrix)results["Pareto Front"].Value).SortableView = true;
|
---|
[13421] | 96 | }
|
---|
| 97 |
|
---|
[13776] | 98 | /// <summary>
|
---|
| 99 | /// Checks whether a given solution violates the contraints of this function.
|
---|
| 100 | /// </summary>
|
---|
| 101 | /// <param name="individual"></param>
|
---|
| 102 | /// <returns>a double array that holds the distances that describe how much every contraint is violated (0 is not violated). If the current TestFunction does not have constraints an array of length 0 is returned</returns>
|
---|
[14068] | 103 | public double[] CheckContraints(RealVector individual) {
|
---|
| 104 | var constrainedTestFunction = (IConstrainedTestFunction)TestFunction;
|
---|
[17225] | 105 | return constrainedTestFunction != null ? constrainedTestFunction.CheckConstraints(individual, Objectives) : new double[0];
|
---|
[13776] | 106 | }
|
---|
| 107 |
|
---|
[17320] | 108 | public override double[] Evaluate(RealVector solution, IRandom random, CancellationToken cancellationToken) {
|
---|
[16807] | 109 | return TestFunction.Evaluate(solution, Objectives);
|
---|
[13421] | 110 | }
|
---|
[13448] | 111 |
|
---|
[13421] | 112 |
|
---|
[13620] | 113 | public void Load(MOTFData data) {
|
---|
[14065] | 114 | TestFunction = data.TestFunction;
|
---|
[13620] | 115 | }
|
---|
[13448] | 116 |
|
---|
[14073] | 117 | #region Events
|
---|
[17544] | 118 | protected override void DimensionOnChanged() {
|
---|
| 119 | base.DimensionOnChanged();
|
---|
| 120 | if (Dimension < TestFunction.MinimumSolutionLength || Dimension > TestFunction.MaximumSolutionLength)
|
---|
| 121 | Dimension = Math.Min(TestFunction.MaximumSolutionLength, Math.Max(TestFunction.MinimumSolutionLength, Dimension));
|
---|
| 122 | UpdateParameterValues();
|
---|
[17690] | 123 | OnReset();
|
---|
[17544] | 124 | }
|
---|
| 125 |
|
---|
[17690] | 126 | protected virtual void TestFunctionOnChanged() {
|
---|
[17544] | 127 | Dimension = Math.Max(TestFunction.MinimumSolutionLength, Math.Min(Dimension, TestFunction.MaximumSolutionLength));
|
---|
[14073] | 128 | Objectives = Math.Max(TestFunction.MinimumObjectives, Math.Min(Objectives, TestFunction.MaximumObjectives));
|
---|
| 129 | UpdateParameterValues();
|
---|
[13421] | 130 | OnReset();
|
---|
| 131 | }
|
---|
| 132 |
|
---|
[17690] | 133 | protected virtual void ObjectivesOnChanged() {
|
---|
[14073] | 134 | Objectives = Math.Min(TestFunction.MaximumObjectives, Math.Max(TestFunction.MinimumObjectives, Objectives));
|
---|
| 135 | UpdateParameterValues();
|
---|
[17690] | 136 | OnReset();
|
---|
[13421] | 137 | }
|
---|
| 138 | #endregion
|
---|
| 139 |
|
---|
| 140 | #region Helpers
|
---|
[17690] | 141 | private void UpdateParameterValues() {
|
---|
| 142 | Maximization = TestFunction.Maximization(Objectives);
|
---|
| 143 |
|
---|
| 144 | BestKnownFrontParameter.Value = DoubleMatrix.FromRows(TestFunction.OptimalParetoFront(Objectives));
|
---|
| 145 | ReferencePoint = TestFunction.ReferencePoint(Objectives);
|
---|
| 146 |
|
---|
| 147 | BoundsRefParameter.Value = new DoubleMatrix(TestFunction.Bounds(Objectives));
|
---|
| 148 | }
|
---|
| 149 |
|
---|
[13421] | 150 | private void InitializeOperators() {
|
---|
[13672] | 151 | Operators.Add(new CrowdingAnalyzer());
|
---|
| 152 | Operators.Add(new GenerationalDistanceAnalyzer());
|
---|
| 153 | Operators.Add(new InvertedGenerationalDistanceAnalyzer());
|
---|
| 154 | Operators.Add(new HypervolumeAnalyzer());
|
---|
| 155 | Operators.Add(new SpacingAnalyzer());
|
---|
[17225] | 156 | Operators.Add(new TimelineAnalyzer());
|
---|
[13421] | 157 | }
|
---|
| 158 | #endregion
|
---|
| 159 | }
|
---|
[17225] | 160 | } |
---|