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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@232 331e1502-861f-0410-8da2-ba01fb791d7f
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liefooga 2007-04-13 15:05:07 +00:00
commit c8049ca6cd
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branches/paradiseo-moeo-1.0/src/moeoElitistReplacement.h
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@ -28,117 +28,117 @@ template < class MOEOT > class moeoElitistReplacement:public moeoReplacement < M
{
public:
/**
* Full constructor.
* @param _evalFitness the fitness assignment strategy
* @param _evalDiversity the diversity assignment strategy
* @param _comparator the comparator (used to compare 2 individuals)
*/
moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _evalFitness, moeoDiversityAssignment < MOEOT > & _evalDiversity, moeoComparator < MOEOT > & _comparator) :
evalFitness (_evalFitness), evalDiversity (_evalDiversity), comparator (_comparator)
{}
/**
* Full constructor.
* @param _evalFitness the fitness assignment strategy
* @param _evalDiversity the diversity assignment strategy
* @param _comparator the comparator (used to compare 2 individuals)
*/
moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _evalFitness, moeoDiversityAssignment < MOEOT > & _evalDiversity, moeoComparator < MOEOT > & _comparator) :
evalFitness (_evalFitness), evalDiversity (_evalDiversity), comparator (_comparator)
{}
/**
* Constructor without comparator. A moeoFitThenDivComparator is used as default.
* @param _evalFitness the fitness assignment strategy
* @param _evalDiversity the diversity assignment strategy
*/
moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _evalFitness, moeoDiversityAssignment < MOEOT > & _evalDiversity) :
evalFitness (_evalFitness), evalDiversity (_evalDiversity), comparator (*(new moeoFitnessThenDiversityComparator < MOEOT >))
{}
/**
* Constructor without comparator. A moeoFitThenDivComparator is used as default.
* @param _evalFitness the fitness assignment strategy
* @param _evalDiversity the diversity assignment strategy
*/
moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _evalFitness, moeoDiversityAssignment < MOEOT > & _evalDiversity) :
evalFitness (_evalFitness), evalDiversity (_evalDiversity), comparator (*(new moeoFitnessThenDiversityComparator < MOEOT >))
{}
/**
* Constructor without moeoDiversityAssignement. A dummy diversity is used as default.
* @param _evalFitness the fitness assignment strategy
* @param _comparator the comparator (used to compare 2 individuals)
*/
moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _evalFitness, moeoComparator < MOEOT > & _comparator) :
evalFitness (_evalFitness), evalDiversity (*(new moeoDummyDiversityAssignment < MOEOT >)), comparator (_comparator)
{}
/**
* Constructor without moeoDiversityAssignement. A dummy diversity is used as default.
* @param _evalFitness the fitness assignment strategy
* @param _comparator the comparator (used to compare 2 individuals)
*/
moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _evalFitness, moeoComparator < MOEOT > & _comparator) :
evalFitness (_evalFitness), evalDiversity (*(new moeoDummyDiversityAssignment < MOEOT >)), comparator (_comparator)
{}
/**
* Constructor without moeoDiversityAssignement nor moeoComparator.
* A moeoFitThenDivComparator and a dummy diversity are used as default.
* @param _evalFitness the fitness assignment strategy
*/
moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _evalFitness) :
evalFitness (_evalFitness), evalDiversity (*(new moeoDummyDiversityAssignment < MOEOT >)), comparator (*(new moeoFitnessThenDiversityComparator < MOEOT >))
{}
/**
* Constructor without moeoDiversityAssignement nor moeoComparator.
* A moeoFitThenDivComparator and a dummy diversity are used as default.
* @param _evalFitness the fitness assignment strategy
*/
moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _evalFitness) :
evalFitness (_evalFitness), evalDiversity (*(new moeoDummyDiversityAssignment < MOEOT >)), comparator (*(new moeoFitnessThenDiversityComparator < MOEOT >))
{}
/**
* Replaces the first population by adding the individuals of the second one, sorting with a moeoComparator and resizing the whole population obtained.
* @param _parents the population composed of the parents (the population you want to replace)
* @param _offspring the offspring population
*/
void operator () (eoPop < MOEOT > &_parents, eoPop < MOEOT > &_offspring)
{
unsigned sz = _parents.size ();
// merges offspring and parents into a global population
_parents.reserve (_parents.size () + _offspring.size ());
copy (_offspring.begin (), _offspring.end (), back_inserter (_parents));
//remove the doubles in the whole pop
/****************************************************************************
eoRemoveDoubles < MOEOT > r;
r(_parents);
****************************************************************************/
// evaluates the fitness and the diversity of this global population
evalFitness (_parents);
evalDiversity (_parents);
// sorts the whole population according to the comparator
Cmp cmp(comparator);
std::sort(_parents.begin(), _parents.end(), cmp);
// finally, resize this global population
_parents.resize (sz);
// and clear the offspring population
_offspring.clear ();
}
/**
* Replaces the first population by adding the individuals of the second one, sorting with a moeoComparator and resizing the whole population obtained.
* @param _parents the population composed of the parents (the population you want to replace)
* @param _offspring the offspring population
*/
void operator () (eoPop < MOEOT > &_parents, eoPop < MOEOT > &_offspring)
{
unsigned sz = _parents.size ();
// merges offspring and parents into a global population
_parents.reserve (_parents.size () + _offspring.size ());
copy (_offspring.begin (), _offspring.end (), back_inserter (_parents));
//remove the doubles in the whole pop
/****************************************************************************
eoRemoveDoubles < MOEOT > r;
r(_parents);
****************************************************************************/
// evaluates the fitness and the diversity of this global population
evalFitness (_parents);
evalDiversity (_parents);
// sorts the whole population according to the comparator
Cmp cmp(comparator);
std::sort(_parents.begin(), _parents.end(), cmp);
// finally, resize this global population
_parents.resize (sz);
// and clear the offspring population
_offspring.clear ();
}
protected:
/** the fitness assignment strategy */
moeoFitnessAssignment < MOEOT > & evalFitness;
/** the diversity assignment strategy */
moeoDiversityAssignment < MOEOT > & evalDiversity;
/** the comparator (used to compare 2 individuals) */
moeoComparator < MOEOT > & comparator;
/** the fitness assignment strategy */
moeoFitnessAssignment < MOEOT > & evalFitness;
/** the diversity assignment strategy */
moeoDiversityAssignment < MOEOT > & evalDiversity;
/** the comparator (used to compare 2 individuals) */
moeoComparator < MOEOT > & comparator;
/**
* This class is used to compare solutions in order to sort the population.
*/
class Cmp
{
public:
/**
* Ctor.
* @param _comparator the comparator
*/
Cmp(moeoComparator < MOEOT > & _comparator) : comparator(_comparator)
{}
/**
* Returns true if _moeo1 is greater than _moeo2 according to the comparator
* _moeo1 the first individual
* _moeo2 the first individual
*/
bool operator()(const MOEOT & _moeo1, const MOEOT & _moeo2)
{
return comparator(_moeo1,_moeo2);
}
private:
/** the comparator */
moeoComparator < MOEOT > & comparator;
};
/**
* This class is used to compare solutions in order to sort the population.
*/
class Cmp
{
public:
/**
* Ctor.
* @param _comparator the comparator
*/
Cmp(moeoComparator < MOEOT > & _comparator) : comparator(_comparator)
{}
/**
* Returns true if _moeo1 is greater than _moeo2 according to the comparator
* _moeo1 the first individual
* _moeo2 the first individual
*/
bool operator()(const MOEOT & _moeo1, const MOEOT & _moeo2)
{
return comparator(_moeo1,_moeo2);
}
private:
/** the comparator */
moeoComparator < MOEOT > & comparator;
};
};