93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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//-----------------------------------------------------------------------------
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// moeoSelectOneFormPopAndArch.h
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// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2006
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/*
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This library...
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Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
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*/
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//-----------------------------------------------------------------------------
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#ifndef MOEOSELECTONEFROMPOPANDARCH_H_
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#define MOEOSELECTONEFROMPOPANDARCH_H_
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#include <eoPop.h>
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#include <eoRandomSelect.h>
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#include <eoSelectOne.h>
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#include <utils/eoRNG.h>
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#include <moeoArchive.h>
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/**
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* Elitist selection process that consists in choosing individuals in the archive as well as in the current population.
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*/
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template < class EOT > class moeoSelectOneFromPopAndArch:public eoSelectOne <
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EOT >
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{
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public:
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/**
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* Ctor
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* @param _popSelectOne the population's selection operator
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* @param _archSelectOne the archive's selection operator
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* @param _arch the archive
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* @param _ratioFromPop the ratio of selected individuals from the population
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*/
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moeoSelectOneFromPopAndArch (eoSelectOne < EOT > &_popSelectOne, eoSelectOne < EOT > _archSelectOne, moeoArchive < EOT > &_arch, double _ratioFromPop = 0.5):popSelectOne (_popSelectOne), archSelectOne (_archSelectOne), arch (_arch),
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ratioFromPop
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(_ratioFromPop)
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{
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}
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/**
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* Ctor - the archive's selection operator is a random selector
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* @param _popSelectOne the population's selection operator
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* @param _arch the archive
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* @param _ratioFromPop the ratio of selected individuals from the population
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*/
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moeoSelectOneFromPopAndArch (eoSelectOne < EOT > &_popSelectOne, moeoArchive < EOT > &_arch, double _ratioFromPop = 0.5):popSelectOne (_popSelectOne), archSelectOne (randomSelect), arch (_arch),
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ratioFromPop
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(_ratioFromPop)
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{
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}
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/**
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* The selection process
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*/
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virtual const EOT & operator () (const eoPop < EOT > &pop)
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{
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if (arch.size () > 0)
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if (rng.flip (ratioFromPop))
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return popSelectOne (pop);
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else
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return archSelectOne (arch);
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else
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return popSelectOne (pop);
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}
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/**
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* Setups some population stats
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*/
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virtual void setup (const eoPop < EOT > &_pop)
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{
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popSelectOne.setup (_pop);
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}
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private:
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/** The population's selection operator */
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eoSelectOne < EOT > &popSelectOne;
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/** The archive's selection operator */
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eoSelectOne < EOT > &archSelectOne;
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/** the archive */
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moeoArchive < EOT > &arch;
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/** the ratio of selected individuals from the population*/
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double ratioFromPop;
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/** the random selection operator */
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eoRandomSelect < EOT > randomSelect;
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};
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#endif /*MOEOSELECTONEFROMPOPANDARCH_H_ */
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