[13448] | 1 | using System;
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| 2 | using System.Collections.Generic;
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| 3 | using System.Linq;
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| 4 | using System.Text;
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| 5 | using System.Threading.Tasks;
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| 6 | using HeuristicLab.Common;
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| 7 | using HeuristicLab.Core;
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| 8 | using HeuristicLab.Data;
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| 9 | using HeuristicLab.Encodings.RealVectorEncoding;
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| 10 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 11 | using HeuristicLab.Problems.MultiObjectiveTestFunction;
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| 12 |
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| 13 | namespace HeuristicLab.Problems.TestFunctions {
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| 14 | [Item("ZDT3", "//http://www.tik.ee.ethz.ch/sop/download/supplementary/testproblems/ [30.11.2015]")]
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| 15 | [StorableClass]
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| 16 | public class ZDT3 : MultiObjectiveTestFunction {
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| 17 |
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| 18 | public override DoubleMatrix Bounds {
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| 19 | get {
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| 20 | return new DoubleMatrix(new double[,] { { 0, 1 } });
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| 21 | }
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| 22 | }
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| 23 |
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| 24 | public override bool[] Maximization {
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| 25 | get {
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| 26 | return new bool[] { false, false };
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| 27 | }
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| 28 | }
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| 29 |
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| 30 | public override int MaximumProblemSize {
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| 31 | get {
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| 32 | return int.MaxValue;
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| 33 | }
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| 34 | }
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| 35 |
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| 36 | public override int MaximumSolutionSize {
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| 37 | get {
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| 38 | return 2;
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| 39 | }
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| 40 | }
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| 41 |
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| 42 | public override int MinimumProblemSize {
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| 43 | get {
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| 44 | return 1;
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| 45 | }
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| 46 | }
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| 47 |
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| 48 | public override int MinimumSolutionSize {
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| 49 | get {
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| 50 | return 2;
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| 51 | }
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| 52 | }
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| 53 |
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| 54 | public override int ActualSolutionSize {
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| 55 | get {
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| 56 | return 2;
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| 57 | }
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| 58 |
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| 59 | set {
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| 60 | }
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| 61 | }
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| 62 |
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| 63 | [StorableConstructor]
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| 64 | protected ZDT3(bool deserializing) : base(deserializing) { }
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| 65 | protected ZDT3(ZDT3 original, Cloner cloner) : base(original, cloner) { }
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| 66 | public ZDT3() : base() { }
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| 67 |
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| 68 | public override IDeepCloneable Clone(Cloner cloner) {
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| 69 | return new ZDT3(this, cloner);
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| 70 | }
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| 71 |
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| 72 |
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| 73 |
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| 74 | public override double[] Evaluate(RealVector r) {
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| 75 | double g = 0;
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| 76 | for (int i = 1; i < r.Length; i++) g += r[i];
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| 77 | g = 1.0 + 9.0 * g / (r.Length - 1);
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| 78 | double d = r[0] / g;
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| 79 | return new double[] { r[0], g * (1.0 - Math.Sqrt(d) - d * Math.Sin(10 * Math.PI * r[0])) };
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| 80 | }
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| 81 | }
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| 82 | }
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