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First commit of PhyloMOEO files with some additions to Paradiseo-MOEO

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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1335 331e1502-861f-0410-8da2-ba01fb791d7f
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wcancino 2009-01-15 15:27:23 +00:00
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/***************************************************************************
* Copyright (C) 2008 by Waldo Cancino *
* wcancino@icmc.usp.br *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef MOEOOBJVECSTAT_H_
#define MOEOOBJVECSTAT_H_
#include <utils/eoStat.h>
#if defined(_MSC_VER) && (_MSC_VER < 1300)
template <class MOEOT>
class moeoObjVecStat : public eoStat<MOEOT, MOEOT::ObjectiveVector>
#else
template <class MOEOT>
class moeoObjVecStat : public eoStat<MOEOT, typename MOEOT::ObjectiveVector>
#endif
{
public:
using eoStat<MOEOT, typename MOEOT::ObjectiveVector>::value;
typedef typename MOEOT::ObjectiveVector ObjectiveVector;
typedef typename MOEOT::ObjectiveVector::Traits Traits;
moeoObjVecStat(std::string _description = "")
: eoStat<MOEOT, ObjectiveVector>(ObjectiveVector(), _description)
{}
virtual void operator()(const eoPop<MOEOT>& _pop) { doit(_pop); };
private:
virtual void doit(const eoPop<MOEOT> &_pop) = 0;
};
template <class MOEOT>
class moeoBestObjVecStat : public moeoObjVecStat<MOEOT>
{
public:
using moeoObjVecStat<MOEOT>::value;
typedef typename moeoObjVecStat<MOEOT>::ObjectiveVector ObjectiveVector;
moeoBestObjVecStat(std::string _description = "Best ")
: moeoObjVecStat<MOEOT>(_description)
{}
virtual std::string className(void) const { return "moeoBestObjVecStat"; }
const MOEOT & bestindividuals(unsigned int objective) { return *(best_individuals[objective]); }
private :
std::vector<typename eoPop<MOEOT>::const_iterator> best_individuals;
struct CmpObjVec
{
CmpObjVec(unsigned _which, bool _maxim) : which(_which), maxim(_maxim) {}
bool operator()(const MOEOT& a, const MOEOT& b)
{
if (maxim)
return a.objectiveVector()[which] < b.objectiveVector()[which];
return a.objectiveVector()[which] > b.objectiveVector()[which];
}
unsigned which;
bool maxim;
};
// Specialization for objective vector
void doit(const eoPop<MOEOT>& _pop)
{
typedef typename moeoObjVecStat<MOEOT>::Traits traits;
value().resize(traits::nObjectives());
for (unsigned o = 0; o < traits::nObjectives(); ++o)
{
typename eoPop<MOEOT>::const_iterator it = std::max_element(_pop.begin(), _pop.end(), CmpObjVec(o, traits::maximizing(o)));
value()[o] = it->objectiveVector()[o];
best_individuals.push_back( it );
}
}
// default
};
template <class MOEOT> class moeoAverageObjVecStat : public moeoObjVecStat<MOEOT>
{
public :
using moeoObjVecStat<MOEOT>::value;
typedef typename moeoObjVecStat<MOEOT>::ObjectiveVector ObjectiveVector;
moeoAverageObjVecStat(std::string _description = "Average Objective Vector")
: moeoObjVecStat<MOEOT>(_description) {}
virtual std::string className(void) const { return "moeoAverageObjVecStat"; }
private :
typedef typename MOEOT::ObjectiveVector::Type Type;
template<typename T> struct sumObjVec
{
sumObjVec(unsigned _which) : which(_which) {}
Type operator()(Type &result, const MOEOT& _obj)
{
return result + _obj.objectiveVector()[which];
}
unsigned which;
};
// Specialization for pareto fitness
void doit(const eoPop<MOEOT>& _pop)
{
typedef typename moeoObjVecStat<MOEOT>::Traits traits;
value().resize(traits::nObjectives());
for (unsigned o = 0; o < value().size(); ++o)
{
value()[o] = std::accumulate(_pop.begin(), _pop.end(), Type(), sumObjVec<Type>(o));
value()[o] /= _pop.size();
}
}
};
#endif