#region License Information /* HeuristicLab * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using HeuristicLab.Core; using HeuristicLab.Data; using HeuristicLab.Encodings.RealVectorEncoding; using HeuristicLab.Parameters; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; namespace HeuristicLab.Problems.TestFunctions { [Item("SphereAdditiveMoveEvaluator", "Class for evaluating an additive move on the Sphere function.")] [StorableClass] public class SphereAdditiveMoveEvaluator : AdditiveMoveEvaluator, ISphereMoveEvaluator { /// /// The parameter C modifies the steepness of the objective function y = C * ||X||^Alpha. Default is C = 1. /// public ValueParameter CParameter { get { return (ValueParameter)Parameters["C"]; } } /// /// The parameter Alpha modifies the steepness of the objective function y = C * ||X||^Alpha. Default is Alpha = 2. /// public ValueParameter AlphaParameter { get { return (ValueParameter)Parameters["Alpha"]; } } /// /// The parameter C modifies the steepness of the objective function y = C * ||X||^Alpha. Default is C = 1. /// public DoubleValue C { get { return CParameter.Value; } set { if (value != null) CParameter.Value = value; } } /// /// The parameter Alpha modifies the steepness of the objective function y = C * ||X||^Alpha. Default is Alpha = 2. /// public DoubleValue Alpha { get { return AlphaParameter.Value; } set { if (value != null) AlphaParameter.Value = value; } } public override System.Type EvaluatorType { get { return typeof(SphereEvaluator); } } public SphereAdditiveMoveEvaluator() { Parameters.Add(new ValueParameter("C", "The parameter C modifies the steepness of the objective function y = C * ||X||^Alpha. Default is C = 1.", new DoubleValue(1))); Parameters.Add(new ValueParameter("Alpha", "The parameter Alpha modifies the steepness of the objective function y = C * ||X||^Alpha. Default is Alpha = 2.", new DoubleValue(2))); } protected override double Evaluate(double quality, RealVector point, AdditiveMove move) { RealVectorAdditiveMoveWrapper wrapper = new RealVectorAdditiveMoveWrapper(move, point); return SphereEvaluator.Apply(wrapper, C.Value, Alpha.Value); } } }