#region License Information
/* HeuristicLab
* Copyright (C) 2002-2011 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.Operators;
using HeuristicLab.Optimization;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
namespace HeuristicLab.Encodings.RealVectorEncoding {
[Item("AdditiveMoveGenerator", "Base class for all additive move generators.")]
[StorableClass]
public abstract class AdditiveMoveGenerator : SingleSuccessorOperator, IAdditiveRealVectorMoveOperator, IMoveGenerator, IStochasticOperator {
public override bool CanChangeName {
get { return false; }
}
public ILookupParameter RandomParameter {
get { return (ILookupParameter)Parameters["Random"]; }
}
public ILookupParameter RealVectorParameter {
get { return (ILookupParameter)Parameters["RealVector"]; }
}
public ILookupParameter AdditiveMoveParameter {
get { return (LookupParameter)Parameters["AdditiveMove"]; }
}
protected ScopeParameter CurrentScopeParameter {
get { return (ScopeParameter)Parameters["CurrentScope"]; }
}
public IValueLookupParameter BoundsParameter {
get { return (IValueLookupParameter)Parameters["Bounds"]; }
}
[StorableConstructor]
protected AdditiveMoveGenerator(bool deserializing) : base(deserializing) { }
protected AdditiveMoveGenerator(AdditiveMoveGenerator original, Cloner cloner) : base(original, cloner) { }
public AdditiveMoveGenerator()
: base() {
Parameters.Add(new LookupParameter("Random", "The random number generator."));
Parameters.Add(new LookupParameter("RealVector", "The real vector for which moves should be generated."));
Parameters.Add(new LookupParameter("AdditiveMove", "The moves that should be generated in subscopes."));
Parameters.Add(new ScopeParameter("CurrentScope", "The current scope where the moves should be added as subscopes."));
Parameters.Add(new ValueLookupParameter("Bounds", "A 2 column matrix specifying the lower and upper bound for each dimension. If there are less rows than dimension the bounds vector is cycled."));
}
public override IOperation Apply() {
RealVector vector = RealVectorParameter.ActualValue;
DoubleMatrix bounds = BoundsParameter.ActualValue;
AdditiveMove[] moves = GenerateMoves(RandomParameter.ActualValue, vector, bounds);
Scope[] moveScopes = new Scope[moves.Length];
for (int i = 0; i < moveScopes.Length; i++) {
moveScopes[i] = new Scope(i.ToString());
moveScopes[i].Variables.Add(new Variable(AdditiveMoveParameter.ActualName, moves[i]));
}
CurrentScopeParameter.ActualValue.SubScopes.AddRange(moveScopes);
return base.Apply();
}
protected abstract AdditiveMove[] GenerateMoves(IRandom random, RealVector realVector, DoubleMatrix bounds);
}
}