Changed name of eoEsLocalXover to eoEsStandardXover and made it an eoBinOp
Removed obsolete eoEsStdevXOver.h (see eoEsStandardXover.h above)
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evomarc
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2 changed files with 11 additions and 101 deletions
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@ -36,13 +36,14 @@
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// needs a selector - here random
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#include <eoRandomSelect.h>
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/** Local (i.e. std eoBinOp) crossover operator for ES genotypes.
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/** Standard (i.e. eoBinOp) crossover operator for ES genotypes.
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* Uses some Atom crossovers to handle both the object variables
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* and the mutation strategy parameters
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* It is an eoGenOp and not an eoBinOp for consistency with the global version
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* It is an eoBinOp and has to be wrapped into an eoGenOp before being used
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* like the global version
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*/
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template<class EOT>
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class eoEsLocalXover: public eoGenOp<EOT>
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class eoEsStandardXover: public eoBinOp<EOT>
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{
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public:
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typedef typename EOT::Fitness FitT;
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@ -50,36 +51,25 @@ public:
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/**
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* (Default) Constructor.
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*/
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eoEsLocalXover(eoBinOp<double> & _crossObj, eoBinOp<double> & _crossMut) :
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eoEsStandardXover(eoBinOp<double> & _crossObj, eoBinOp<double> & _crossMut) :
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crossObj(_crossObj), crossMut(_crossMut) {}
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/// The class name. Used to display statistics
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virtual string className() const { return "eoEsLocalXover"; }
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/// The TOTAL number of offspring (here = nb of parents modified in place)
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unsigned max_production(void) { return 1; }
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virtual string className() const { return "eoEsStandardXover"; }
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/**
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* modifies one parents in the populator
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* using a second parent
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*
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* @param _pop a POPULATOR (not a simple population)
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*/
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void apply(eoPopulator<EOT>& _plop)
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{
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// First, select as many parents as you will have offspring
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EOT& parent1 = *_plop; // select the first parent
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const EOT& parent2 = sel(_plop.source()); // and the second, randomly
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bool operator()(EOT& _eo1, const EOT& _eo2)
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{
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// first, the object variables
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for (unsigned i=0; i<parent1.size(); i++)
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for (unsigned i=0; i<_eo1.size(); i++)
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{
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crossObj(parent1[i], parent2[i]); // apply eoBinOp
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crossObj(_eo1[i], _eo2[i]); // apply eoBinOp
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}
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// then the self-adaptation parameters
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cross_self_adapt(parent1, parent2);
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// dont' forget to invalidate
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parent1.invalidate();
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cross_self_adapt(_eo1, _eo2);
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}
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private:
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@ -1,80 +0,0 @@
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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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//-----------------------------------------------------------------------------
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// eoEsStdevXOver.h
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// (c) GeNeura Team, 2000 - Maarten Keijzer 2000 - Marc Schoenauer 2001
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/*
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: todos@geneura.ugr.es, http://geneura.ugr.es
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Marc.Schoenauer@polytechnique.fr
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mak@dhi.dk
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*/
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//-----------------------------------------------------------------------------
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#ifndef _eoEsStdevXOver_h
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#define _eoEsStdevXOver_h
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#include <es/eoEsStdev.h>
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#include <es/eoRealOp.h>
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/**
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\ingroup EvolutionStrategies
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Crossover for Evolutionary strategie style representation,
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supporting co-evolving standard deviations.
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Simply calls a crossover for the object variables,
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and a crossover for teh StdDev
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*/
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template <class EOT>
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class eoEsStdevXOver : public eoQuadOp<EOT>
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{
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public :
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eoEsStdevXOver(eoQuadOp<vector<double> > & _objectXOver,
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eoQuadOp<vector<double> > & _stdDevXOver) :
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objectXOver(_objectXOver), stdDevXOver(_stdDevXOver) {}
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virtual std::string className(void) const { return "eoEsStdevXOver"; }
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bool operator()(EOT & _eo1, EOT & _eo2)
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{
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bool objectChanged = objectXOver(_eo1, _eo2); // as vector<double>
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bool stdDevChanged = stdDevXOver(_eo1.stdevs, _eo2.stdevs);
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return objectChanged;
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}
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private:
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eoQuadOp<vector<double> > & objectXOver;
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eoQuadOp<vector<double> > & stdDevXOver;
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};
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/* A question: it seems it really makes no difference to have
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as template the fitness (and use eoEsStdev<FitT> where you need EOs) or
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directly the EOT itself. But of course if the EOT you use does not have
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a stdev public member the compiler will crash.
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There is a difference, however, in the calling instruction, because in
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on case you have to write eoEsStdevXOver<double> whereas otherwise you
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simply write eoEsStdevXOver<Indi> (if Indi has been typedef'ed correctly).
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So to keep everything (or almost :-) in the main program templatized
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with the Indi i've kept here the EOT template.
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Are there arguments against that???
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MS - Marc.Schoenauer@polytechnique.fr
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*/
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#endif
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