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Ajout de moPopSolInit.h pour initialiser a solution-set

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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1903 331e1502-861f-0410-8da2-ba01fb791d7f
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verel 2010-08-17 13:14:31 +00:00
commit 0ef7bc2165
3 changed files with 144 additions and 119 deletions
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159
trunk/paradiseo-mo/src/problems/bitString/moPopBitNeighbor.h
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@ -1,30 +1,30 @@
/* /*
<moPopBitNeighbor.h> <moPopBitNeighbor.h>
Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010 Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010
Sébastien Verel, Arnaud Liefooghe, Jérémie Humeau Sebastien Verel, Arnaud Liefooghe, Jeremie Humeau
This software is governed by the CeCILL license under French law and This software is governed by the CeCILL license under French law and
abiding by the rules of distribution of free software. You can ue, abiding by the rules of distribution of free software. You can ue,
modify and/ or redistribute the software under the terms of the CeCILL modify and/ or redistribute the software under the terms of the CeCILL
license as circulated by CEA, CNRS and INRIA at the following URL license as circulated by CEA, CNRS and INRIA at the following URL
"http://www.cecill.info". "http://www.cecill.info".
In this respect, the user's attention is drawn to the risks associated In this respect, the user's attention is drawn to the risks associated
with loading, using, modifying and/or developing or reproducing the with loading, using, modifying and/or developing or reproducing the
software by the user in light of its specific status of free software, 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 that may mean that it is complicated to manipulate, and that also
therefore means that it is reserved for developers and experienced therefore means that it is reserved for developers and experienced
professionals having in-depth computer knowledge. Users are therefore professionals having in-depth computer knowledge. Users are therefore
encouraged to load and test the software's suitability as regards their encouraged to load and test the software's suitability as regards their
requirements in conditions enabling the security of their systems and/or 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 data to be ensured and, more generally, to use and operate it in the
same conditions as regards security. same conditions as regards security.
The fact that you are presently reading this means that you have had The fact that you are presently reading this means that you have had
knowledge of the CeCILL license and that you accept its terms. knowledge of the CeCILL license and that you accept its terms.
ParadisEO WebSite : http://paradiseo.gforge.inria.fr ParadisEO WebSite : http://paradiseo.gforge.inria.fr
Contact: paradiseo-help@lists.gforge.inria.fr Contact: paradiseo-help@lists.gforge.inria.fr
*/ */
#ifndef _moPopBitNeighbor_h #ifndef _moPopBitNeighbor_h
@ -33,7 +33,6 @@ Contact: paradiseo-help@lists.gforge.inria.fr
#include <eoPop.h> #include <eoPop.h>
#include <ga/eoBit.h> #include <ga/eoBit.h>
#include <problems/bitString/moPopSol.h> #include <problems/bitString/moPopSol.h>
#include <neighborhood/moBackableNeighbor.h>
#include <neighborhood/moIndexNeighbor.h> #include <neighborhood/moIndexNeighbor.h>
/** /**
@ -43,73 +42,73 @@ template< class Fitness >
class moPopBitNeighbor : public moIndexNeighbor< moPopSol<eoBit<Fitness> > > class moPopBitNeighbor : public moIndexNeighbor< moPopSol<eoBit<Fitness> > >
{ {
public: public:
typedef moPopSol<eoBit<Fitness> > EOT ; typedef moPopSol<eoBit<Fitness> > EOT ;
typedef eoBit<Fitness> SUBEOT; typedef eoBit<Fitness> SUBEOT;
using moIndexNeighbor<EOT>::fitness; using moIndexNeighbor<EOT>::fitness;
using moIndexNeighbor<EOT>::key; using moIndexNeighbor<EOT>::key;
/** /**
* move the solution * move the solution
* @param _solution the solution to move * @param _solution the solution to move
*/ */
virtual void move(EOT & _solution) { virtual void move(EOT & _solution) {
if(_solution[0].size()>0){ if(_solution[0].size()>0){
unsigned size=_solution[0].size(); unsigned size=_solution[0].size();
unsigned s = key/size; unsigned s = key/size;
unsigned b = key%size; unsigned b = key%size;
_solution[s][b] = !_solution[s][b]; _solution[s][b] = !_solution[s][b];
_solution[s].fitness(subfit); _solution[s].fitness(subfit);
_solution.invalidate(); _solution.invalidate();
}
} }
}
void setSubFit(Fitness _subfit){ void setSubFit(Fitness _subfit){
subfit=_subfit; subfit=_subfit;
} }
/** /**
* return the class name * return the class name
* @return the class name as a std::string * @return the class name as a std::string
*/ */
virtual std::string className() const { virtual std::string className() const {
return "moPopBitNeighbor"; return "moPopBitNeighbor";
} }
/** /**
* Read object.\ * Read object.\
* Calls base class, just in case that one had something to do. * Calls base class, just in case that one had something to do.
* The read and print methods should be compatible and have the same format. * The read and print methods should be compatible and have the same format.
* In principle, format is "plain": they just print a number * In principle, format is "plain": they just print a number
* @param _is a std::istream. * @param _is a std::istream.
* @throw runtime_std::exception If a valid object can't be read. * @throw runtime_std::exception If a valid object can't be read.
*/ */
virtual void readFrom(std::istream& _is) { virtual void readFrom(std::istream& _is) {
std::string fitness_str; std::string fitness_str;
int pos = _is.tellg(); int pos = _is.tellg();
_is >> fitness_str; _is >> fitness_str;
if (fitness_str == "INVALID") { if (fitness_str == "INVALID") {
throw std::runtime_error("invalid fitness"); throw std::runtime_error("invalid fitness");
}
else {
Fitness repFit ;
_is.seekg(pos);
_is >> repFit;
_is >> key;
fitness(repFit);
}
} }
else {
Fitness repFit ;
_is.seekg(pos);
_is >> repFit;
_is >> key;
fitness(repFit);
}
}
/** /**
* Write object. Called printOn since it prints the object _on_ a stream. * Write object. Called printOn since it prints the object _on_ a stream.
* @param _os A std::ostream. * @param _os A std::ostream.
*/ */
virtual void printOn(std::ostream& _os) const { virtual void printOn(std::ostream& _os) const {
_os << fitness() << ' ' << key << std::endl; _os << fitness() << ' ' << key << std::endl;
} }
private: private:
Fitness subfit; Fitness subfit;
}; };
#endif #endif

20
trunk/paradiseo-mo/src/problems/bitString/moPopSol.h
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@ -36,16 +36,18 @@ Contact: paradiseo-help@lists.gforge.inria.fr
template <class EOT> template <class EOT>
class moPopSol : public EO<double>, public std::vector<EOT>{ class moPopSol : public EO<double>, public std::vector<EOT>{
public: public:
typedef typename EO<double>::Fitness Fitness; typedef EOT SUBEOT; // public type of the solution
using EO<double>::invalidate;
virtual void printOn(std::ostream& _os) const
{
_os << (*this).size() << " " << (*this).fitness() << '\n';
for(unsigned int i=0; i<(*this).size(); i++)
_os << (*this).operator[](i) << std::endl;
}
typedef typename EO<double>::Fitness Fitness;
using EO<double>::invalidate;
virtual void printOn(std::ostream& _os) const
{
_os << (*this).size() << " " << (*this).fitness() << '\n';
for(unsigned int i=0; i<(*this).size(); i++)
_os << (*this).operator[](i) << std::endl;
}
}; };
#endif #endif

84
trunk/paradiseo-mo/src/problems/eval/moPopBitEval.h
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@ -2,7 +2,7 @@
<moPopBitEval.h> <moPopBitEval.h>
Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010 Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010
Sébastien Verel, Arnaud Liefooghe, Jérémie Humeau Sebastien Verel, Arnaud Liefooghe, Jeremie Humeau
This software is governed by the CeCILL license under French law and This software is governed by the CeCILL license under French law and
abiding by the rules of distribution of free software. You can use, abiding by the rules of distribution of free software. You can use,
@ -39,46 +39,70 @@
#include <eval/moEval.h> #include <eval/moEval.h>
/** /**
* Abstract class for the evaluation * Class to compute the fitness of the solution-set after mutation of one bit
*/ */
template<class Neighbor> template<class Neighbor>
class moPopBitEval : public moEval<Neighbor> class moPopBitEval : public moEval<Neighbor>
{ {
public: public:
typedef typename Neighbor::EOT EOT; typedef typename Neighbor::EOT EOT;
typedef typename Neighbor::SUBEOT SUBEOT; typedef typename Neighbor::SUBEOT SUBEOT; // type of the solution
typedef typename EOT::Fitness Fitness; typedef typename SUBEOT::Fitness Fitness; // fitness type of the solution
moPopBitEval(eoEvalFunc<SUBEOT>& _eval, unsigned int _p):eval(_eval), p(_p){ /**
* Default constructor
*
* @param _eval evaluation function of the solution
* @param _p exponent of the p-norm to compute the fitness of the solution-set
*/
moPopBitEval(eoEvalFunc<SUBEOT>& _eval, unsigned int _p):eval(_eval), p(_p){
}
/**
* Compute the fitness of the neighbor after one bit mutation
*
* @param _sol the solution-set
* @param _n the neighbor which is supposed to be indexed
*/
void operator()(EOT& _sol, Neighbor& _n){
if(_sol[0].size()>0) {
// index of the solution and the bit
unsigned int size = _sol[0].size();
unsigned int s = _n.index() / size; // solution index
unsigned int b = _n.index() % size; // bit index
// flip the right bit
_sol[s][b] = !_sol[s][b];
// compute and save the fitness of the solution s
fitOfSol = _sol[s].fitness();
_sol[s].invalidate();
eval(_sol[s]);
_n.setSubFit(_sol[s].fitness());
// compute the fitness of the solution-set
double fit = 0;
for (unsigned int i = 0; i < _sol.size(); i++)
fit += pow((double) _sol[i].fitness(), (int) p);
fit = pow((double) fit, (double)1/p);
_n.fitness(fit);
// come back to the initial solution
_sol[s][b] = !_sol[s][b];
_sol[s].fitness(fitOfSol);
} }
}
void operator()(EOT& _sol, Neighbor& _n){
if(_sol[0].size()>0){
unsigned int size=_sol[0].size();
unsigned int s=_n.index()/size;
unsigned int b=_n.index()%size;
subfit=_sol[s].fitness();
_sol[s][b]=!_sol[s][b];
_sol[s].invalidate();
eval(_sol[s]);
double fit=0;
for (unsigned int i = 0; i < _sol.size(); i++){
fit+=pow((double) _sol[i].fitness(), (int) p);
}
fit=pow((double) fit, (double)1/p);
_n.setSubFit(_sol[s].fitness());
_n.fitness(fit);
_sol[s][b]=!_sol[s][b];
_sol[s].fitness(subfit);
}
}
private: private:
eoEvalFunc<SUBEOT> & eval; eoEvalFunc<SUBEOT> & eval;
unsigned int p; unsigned int p;
Fitness subfit; Fitness fitOfSol;
}; };