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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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84
trunk/paradiseo-mo/src/problems/eval/moPopBitEval.h
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@ -2,7 +2,7 @@
<moPopBitEval.h>
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
abiding by the rules of distribution of free software. You can use,
@ -39,46 +39,70 @@
#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>
class moPopBitEval : public moEval<Neighbor>
{
public:
typedef typename Neighbor::EOT EOT;
typedef typename Neighbor::SUBEOT SUBEOT;
typedef typename Neighbor::EOT EOT;
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:
eoEvalFunc<SUBEOT> & eval;
unsigned int p;
Fitness subfit;
eoEvalFunc<SUBEOT> & eval;
unsigned int p;
Fitness fitOfSol;
};