mde_pbx.h

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#ifndef PAGMO_ALGORITHM_MDE_PBX_H
#define PAGMO_ALGORITHM_MDE_PBX_H

#include <string>

#include "../config.h"
#include "../population.h"
#include "../serialization.h"
#include "base.h"

namespace pagmo { namespace algorithm {


class __PAGMO_VISIBLE mde_pbx : public base
{
public:
        mde_pbx(int = 100, double = 0.15, double = 1.5, double = 1e-30, double = 1e-30);
        base_ptr clone() const;
        void evolve(population &) const;
        std::string get_name() const;
protected:
        std::string human_readable_extra() const;
        double powermean(std::vector<double>, double) const;
private:
        friend class boost::serialization::access;
        template <class Archive>
        void serialize(Archive &ar, const unsigned int)
        {
                ar & boost::serialization::base_object<base>(*this);
                ar & const_cast<int &>(m_gen);
                ar & const_cast<double &>(m_qperc);
                ar & const_cast<double &>(m_nexp);
                ar & const_cast<double &>(m_ftol);
                ar & const_cast<double &>(m_xtol);
                ar & m_fm;
                ar & m_crm;
                ar & m_fsuccess;
                ar & m_crsuccess;
        }
        
        // Number of generations.
        const int m_gen;

        // this vector keeps track of successfull scale factors
        mutable std::vector<double> m_fsuccess;
        
        // Current scale control factor
        mutable double m_fm;
        
        // this vector keeps track of successfull crossover probabilities
        mutable std::vector<double> m_crsuccess;

    // Current crossover control factor
        mutable double m_crm;
        
        // Control parameters
        const double m_qperc;
        const double m_nexp;
                
        // Self-adaptation strategy
        const double m_ftol;
        const double m_xtol;

};

}}

BOOST_CLASS_EXPORT_KEY(pagmo::algorithm::mde_pbx)

#endif // PAGMO_ALGORITHM_MDE_PBX_H