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legrand 2007-02-23 13:23:22 +00:00
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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// moeoRouletteSelect.h
// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
/*
This library...
Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
*/
//-----------------------------------------------------------------------------
#ifndef MOEOROULETTESELECT_H_
#define MOEOROULETTESELECT_H_
#include <moeoSelectOne.h>
#include <moeoSelectors.h>
/**
* moeoRouletteSelect: a selection method that selects ONE individual by
* using roulette wheel process
*/
template < class MOEOT >
class moeoRouletteSelect:public moeoSelectOne <MOEOT>
{
public:
/**
* Full Ctor
* @param _evalFitness the population fitness assignment
* @param _evalDiversity the population diversity assignment
* @param _comparator the comparator to compare the individuals
* @param _total
*/
moeoRouletteSelect (moeoFitnessAssignment < MOEOT > &_evalFitness, moeoDiversityAssignment < MOEOT > &_evalDiversity, moeoComparator < MOEOT > &_comparator, double _total=1 ):evalFitness (_evalFitness), evalDiversity (_evalDiversity),
comparator (_comparator), total (_total) {}
/**
* Ctor without comparator. A moeoFitnessThenDiversityComparator is used as default.
* @param _evalFitness the population fitness assignment
* @param _evalDiversity the population diversity assignment
* @param _total
*/
moeoRouletteSelect (moeoFitnessAssignment < MOEOT > &_evalFitness, moeoDiversityAssignment < MOEOT > &_evalDiversity)
:evalFitness (_evalFitness), evalDiversity (_evalDiversity)
{
// a moeoFitThenDivComparator is used as default
moeoFitnessThenDiversityComparator < MOEOT > &fitThenDivComparator;
comparator = fitThenDivComparator;
}
/**
* Ctor without diversity assignment. A dummy diversity assignment is used.
* @param _evalFitness the population fitness assignment
* @param _comparator the comparator to compare the individuals
* @param _total
*/
moeoRouletteSelect (moeoFitnessAssignment < MOEOT > &_evalFitness, moeoComparator < MOEOT > &_comparator, double _total=1):evalFitness (_evalFitness), comparator (_comparator),
total
(_total)
{
// a dummy diversity is used as default
moeoDummyDiversityAssignment < MOEOT > &dummyDiversityAssignment;
evalDiversity = dummyDiversityAssignment;
}
/**
* Ctor without diversity assignment nor comparator. A moeoDummyDiversityAssignment and a moeoFitnessThenDiversityComparator are used as default.
* @param _evalFitness the population fitness assignment
* @param _total
*/
moeoRouletteSelect (moeoFitnessAssignment < MOEOT > &_evalFitness, double _total=1):evalFitness (_evalFitness),
total (_total)
{
// a dummy diversity is used as default
moeoDummyDiversityAssignment < MOEOT > &dummyDiversityAssignment;
evalDiversity = dummyDiversityAssignment;
// a moeoFitThenDivComparator is used as default
moeoFitnessThenDiversityComparator < MOEOT > &fitThenDivComparator;
comparator = fitThenDivComparator;
}
/*
* Evaluate the fitness and the diversity of each individual of the population.
*/
void setup (eoPop<MOEOT>& _pop)
{
// eval fitness
evalFitness(_pop);
// eval diversity
evalDiversity(_pop);
}
/**
* Apply the tournament to the given population
*/
const MOEOT & operator () (const eoPop < MOEOT > &_pop)
{
// use the selector
return mo_roulette_wheel(_pop,total); //comparator ??
}
protected:
moeoFitnessAssignment < MOEOT > &evalFitness;
moeoDiversityAssignment < MOEOT > &evalDiversity;
moeoComparator < MOEOT > &comparator;
double total;
};
#endif /*MOEOROULETTESELECT_H_ */