#region License Information
/* HeuristicLab
* Copyright (C) 2002-2012 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.Common;
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); }
}
[StorableConstructor]
protected SphereAdditiveMoveEvaluator(bool deserializing) : base(deserializing) { }
protected SphereAdditiveMoveEvaluator(SphereAdditiveMoveEvaluator original, Cloner cloner) : base(original, cloner) { }
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)));
}
public override IDeepCloneable Clone(Cloner cloner) {
return new SphereAdditiveMoveEvaluator(this, cloner);
}
protected override double Evaluate(double quality, RealVector point, AdditiveMove move) {
RealVectorAdditiveMoveWrapper wrapper = new RealVectorAdditiveMoveWrapper(move, point);
return SphereEvaluator.Apply(wrapper, C.Value, Alpha.Value);
}
}
}