paradiseo/contribution/branches/MOLS/src2/moeoNewBoundedArchive.h

149 lines
4.9 KiB
C++

/*
* <moeoNewBoundedArchive.h>
* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
* (C) OPAC Team, LIFL, 2002-2007
*
* Arnaud Liefooghe
*
* This software is governed by the CeCILL license under French law and
* abiding by the rules of distribution of free software. You can use,
* modify and/ or redistribute the software under the terms of the CeCILL
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* As a counterpart to the access to the source code and rights to copy,
* modify and redistribute granted by the license, users are provided only
* with a limited warranty and the software's author, the holder of the
* economic rights, and the successive licensors have only limited liability.
*
* In this respect, the user's attention is drawn to the risks associated
* with loading, using, modifying and/or developing or reproducing the
* software by the user in light of its specific status of free software,
* that may mean that it is complicated to manipulate, and that also
* therefore means that it is reserved for developers and experienced
* professionals having in-depth computer knowledge. Users are therefore
* encouraged to load and test the software's suitability as regards their
* requirements in conditions enabling the security of their systems and/or
* data to be ensured and, more generally, to use and operate it in the
* same conditions as regards security.
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL license and that you accept its terms.
*
* ParadisEO WebSite : http://paradiseo.gforge.inria.fr
* Contact: paradiseo-help@lists.gforge.inria.fr
*
*/
//-----------------------------------------------------------------------------
#ifndef MOEONEWBOUNDEDARCHIVE_H_
#define MOEONEWBOUNDEDARCHIVE_H_
#include <comparator/moeoObjectiveVectorComparator.h>
#include <comparator/moeoParetoObjectiveVectorComparator.h>
#include <archive/moeoArchive.h>
#include <moeoDMLSArchive.h>
template < class MOEOT >
class moeoNewBoundedArchive : public moeoDMLSArchive < MOEOT >
{
public:
using moeoArchive < MOEOT > :: size;
using moeoArchive < MOEOT > :: operator[];
using moeoArchive < MOEOT > :: back;
using moeoArchive < MOEOT > :: pop_back;
using moeoDMLSArchive < MOEOT > :: isModified;
/**
* The type of an objective vector for a solution
*/
typedef typename MOEOT::ObjectiveVector ObjectiveVector;
/**
* Default ctor.
* The moeoObjectiveVectorComparator used to compare solutions is based on Pareto dominance
*/
moeoNewBoundedArchive(unsigned int _maxSize=100) : moeoDMLSArchive < MOEOT >(), maxSize(_maxSize)
{}
/**
* Ctor
* @param _comparator the moeoObjectiveVectorComparator used to compare solutions
*/
moeoNewBoundedArchive(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, unsigned int _maxSize=100) : moeoDMLSArchive < MOEOT >(_comparator), maxSize(_maxSize)
{}
private:
/** Max size of archive*/
unsigned int maxSize;
bool update(const eoPop < MOEOT > & _pop){
return true;
}
/**
* Updates the archive with a given individual _moeo *** NEW ***
* @param _moeo the given individual
*/
bool update(const MOEOT & _moeo)
{
// first step: removing the dominated solutions from the archive
for (unsigned int j=0; j<size();)
{
// if the jth solution contained in the archive is dominated by _moeo
if ( comparator(operator[](j).objectiveVector(), _moeo.objectiveVector()) )
{
operator[](j) = back();
pop_back();
}
/////////////////////////////////////////////////////////////////////
// else if (_moeo.objectiveVector() == operator[](j).objectiveVector())
// {
// operator[](j) = back();
// pop_back();
// }
/////////////////////////////////////////////////////////////////////
else
{
j++;
}
}
// second step: is _moeo dominated?
bool dom = false;
for (unsigned int j=0; j<size(); j++)
{
// if _moeo is dominated by the jth solution contained in the archive
if ( comparator(_moeo.objectiveVector(), operator[](j).objectiveVector()) )
{
dom = true;
break;
}
/////////////////////////////////////////////////////////////////////
else if ( _moeo.objectiveVector() == operator[](j).objectiveVector() )
{
dom = true;
break;
}
/////////////////////////////////////////////////////////////////////
}
if (!dom)
{
if(size()<maxSize){
push_back(_moeo);
isModified=true;
}
else
dom=!dom;
}
return !dom;
}
};
#endif /*MOEONEWBOUNDEDARCHIVE_H_ */