1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2016 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 HeuristicLab.Common;
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23 | using HeuristicLab.Core;
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24 | using HeuristicLab.Data;
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25 | using HeuristicLab.Operators;
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26 | using HeuristicLab.Optimization;
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27 | using HeuristicLab.Parameters;
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28 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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29 |
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30 | namespace HeuristicLab.Encodings.RealVectorEncoding {
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31 |
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32 | [Item("Particle Updater (SPSO)", "Updates a certain particle taking the current position and velocity into account, as well as the best point and the best point in a local neighborhood.")]
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33 | [StorableClass]
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34 | public abstract class SPSOParticleUpdater : SingleSuccessorOperator, IRealVectorParticleUpdater {
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35 |
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36 | public override bool CanChangeName {
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37 | get { return false; }
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38 | }
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39 |
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40 | #region Parameter properties
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41 | public ILookupParameter<IRandom> RandomParameter {
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42 | get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
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43 | }
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44 | public ILookupParameter<RealVector> VelocityParameter {
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45 | get { return (ILookupParameter<RealVector>)Parameters["Velocity"]; }
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46 | }
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47 | public ILookupParameter<RealVector> PersonalBestParameter {
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48 | get { return (ILookupParameter<RealVector>)Parameters["PersonalBest"]; }
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49 | }
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50 | public ILookupParameter<RealVector> NeighborBestParameter {
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51 | get { return (ILookupParameter<RealVector>)Parameters["NeighborBest"]; }
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52 | }
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53 | public ILookupParameter<RealVector> RealVectorParameter {
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54 | get { return (ILookupParameter<RealVector>)Parameters["RealVector"]; }
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55 | }
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56 | public ILookupParameter<DoubleMatrix> BoundsParameter {
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57 | get { return (ILookupParameter<DoubleMatrix>)Parameters["Bounds"]; }
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58 | }
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59 | public ILookupParameter<DoubleValue> CurrentMaxVelocityParameter {
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60 | get { return (ILookupParameter<DoubleValue>)Parameters["CurrentMaxVelocity"]; }
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61 | }
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62 | public ILookupParameter<DoubleValue> CurrentInertiaParameter {
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63 | get { return (ILookupParameter<DoubleValue>)Parameters["CurrentInertia"]; }
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64 | }
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65 | ILookupParameter<DoubleValue> IParticleUpdater.InertiaParameter { get { return CurrentInertiaParameter; } }
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66 |
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67 | public ILookupParameter<DoubleValue> PersonalBestAttractionParameter {
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68 | get { return (ILookupParameter<DoubleValue>)Parameters["PersonalBestAttraction"]; }
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69 | }
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70 | public ILookupParameter<DoubleValue> NeighborBestAttractionParameter {
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71 | get { return (ILookupParameter<DoubleValue>)Parameters["NeighborBestAttraction"]; }
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72 | }
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73 | #endregion
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74 |
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75 | #region Construction & Cloning
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76 | [StorableConstructor]
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77 | protected SPSOParticleUpdater(bool deserializing) : base(deserializing) { }
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78 | protected SPSOParticleUpdater(SPSOParticleUpdater original, Cloner cloner) : base(original, cloner) { }
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79 | public SPSOParticleUpdater()
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80 | : base() {
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81 | Parameters.Add(new LookupParameter<IRandom>("Random", "Random number generator."));
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82 | Parameters.Add(new LookupParameter<RealVector>("RealVector", "Particle's current solution"));
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83 | Parameters.Add(new LookupParameter<RealVector>("Velocity", "Particle's current velocity."));
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84 | Parameters.Add(new LookupParameter<RealVector>("PersonalBest", "Particle's personal best solution."));
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85 | Parameters.Add(new LookupParameter<RealVector>("NeighborBest", "Best neighboring solution."));
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86 | Parameters.Add(new LookupParameter<DoubleMatrix>("Bounds", "The lower and upper bounds for each dimension of the position vector for the current problem."));
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87 | Parameters.Add(new LookupParameter<DoubleValue>("CurrentMaxVelocity", "Maximum for the particle's velocity vector."));
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88 | Parameters.Add(new LookupParameter<DoubleValue>("CurrentInertia", "The weight for the particle's velocity vector."));
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89 | Parameters.Add(new LookupParameter<DoubleValue>("PersonalBestAttraction", "The weight for the particle's personal best position."));
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90 | Parameters.Add(new LookupParameter<DoubleValue>("NeighborBestAttraction", "The weight for the global best position."));
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91 | }
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92 | #endregion
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93 | }
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94 | }
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