evaluationop.cpp

非常好的进化算法EC 实现平台 可以实现多种算法 GA GP

/*
 *  Open BEAGLE
 *  Copyright (C) 2001-2005 by Christian Gagne and Marc Parizeau
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact:
 *  Laboratoire de Vision et Systemes Numeriques
 *  Departement de genie electrique et de genie informatique
 *  Universite Laval, Quebec, Canada, G1K 7P4
 *  http://vision.gel.ulaval.ca
 *
 */

/*!
 *  \file   beagle/GP/src/EvaluationOp.cpp
 *  \brief  Source code of class GP::EvaluationOp.
 *  \author Christian Gagne
 *  \author Marc Parizeau
 *  $Revision: 1.7 $
 *  $Date: 2005/10/04 16:25:10 $
 */

#include "beagle/GP.hpp"

#include <string>

using namespace Beagle;


/*!
 *  \brief Construct a evaluation operator.
 *  \param inName Name of the operator.
 */
GP::EvaluationOp::EvaluationOp(Beagle::string inName) :
  Beagle::EvaluationOp(inName)
{ }


/*!
 *  \brief Evaluate the fitness of the given GP individual.
 *  \param inIndividual Current individual to evaluate.
 *  \param ioContext Evolutionary context.
 *  \return Handle to the fitness value of the GP individual.
 */
Fitness::Handle GP::EvaluationOp::evaluate(Beagle::Individual& inIndividual,
                                           Beagle::Context& ioContext)
{
  Beagle_StackTraceBeginM();
  return evaluate(castObjectT<GP::Individual&>(inIndividual), castObjectT<GP::Context&>(ioContext));
  Beagle_StackTraceEndM("Fitness::Handle GP::EvaluationOp::evaluate(Beagle::Individual& inIndividual, Beagle::Context& ioContext)");
}


/*!
 *  \brief Set the value of the named GP primitive of the primitive sets.
 *  \param inName Name of the variable to set.
 *  \param inValue Value of the primitive.
 *  \param ioContext Context of the evaluation.
 *  \throw Beagle::RunTimeException If the named primitive is not found in any sets.
 */
void GP::EvaluationOp::setValue(Beagle::string inName,
                                const Object& inValue,
                                GP::Context& ioContext) const
{
  Beagle_StackTraceBeginM();
  GP::PrimitiveSuperSet& lSuperSet = ioContext.getSystem().getPrimitiveSuperSet();
  bool lValueFound = false;
  Beagle_LogDebugM(
    ioContext.getSystem().getLogger(),
    "evaluation", "Beagle::GP::EvaluationOp",
    string("Setting the primitives named \"")+inName+
    string("\" to the value: ")+inValue.serialize()
  );
  for(unsigned int i=0; i<lSuperSet.size(); i++) {
    Primitive::Handle lPrimitive = lSuperSet[i]->getPrimitiveByName(inName);
    if(!lPrimitive) continue;
    lValueFound = true;
    lPrimitive->setValue(inValue);
  }
  if(lValueFound == false) {
    string lMessage = "The primitive named \"";
    lMessage += inName;
    lMessage += "\" was not found in any ";
    lMessage += "of the primitive sets. Maybe the primitive was not properly inserted ";
    lMessage += "or the name is mispelled.";
    throw Beagle_RunTimeExceptionM(lMessage);
  }
  Beagle_StackTraceEndM("void GP::EvaluationOp::setValue(string inName, const Object& inValue, GP::Context& ioContext) const");
}