111 lines
2.9 KiB
C++
111 lines
2.9 KiB
C++
/*
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The Evolving Distribution Objects framework (EDO) is a template-based,
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ANSI-C++ evolutionary computation library which helps you to write your
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own estimation of distribution algorithms.
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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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Copyright (C) 2013 Thales group
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*/
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/*
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Authors:
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Johann Dréo <johann.dreo@thalesgroup.com>
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*/
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#ifndef _edoTransform_h
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#define _edoTransform_h
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#include <eo> // eoTransform
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/** @defgroup Wrappers
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*
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* Wrappers to interact with other parts of the framework
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*/
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/** Abstract base class for wrapping an estimator and a sampler as an eoTransform
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*
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* @ingroup Wrappers
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*/
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template<class D>
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class edoTransform : public eoTransform< eoPop<typename D::EOType>& >
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{
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public:
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typedef typename D::EOType EOType;
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edoTransform( edoEstimator<D> & estimator, edoSampler<D> & sampler ) :
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_estimator(estimator), _sampler(sampler)
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{}
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virtual void operator()( eoPop<EOType> & pop ) = 0;
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protected:
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edoEstimator<D> & _estimator;
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edoSampler<D> & _sampler;
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};
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/** Wrapping an estimator and a sampler as an eoTransform.
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*
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* @ingroup Wrappers
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*/
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template<typename D>
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class edoTransformAdaptive : public edoTransform<D>
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{
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public:
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typedef typename D::EOType EOType;
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edoTransformAdaptive( D & distrib, edoEstimator<D> & estimator, edoSampler<D> & sampler )
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: _distrib(distrib), _estimator(estimator), _sampler(sampler)
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{}
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virtual void operator()( eoPop<EOType> & pop )
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{
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_distrib = _estimator( pop );
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pop.clear();
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for( unsigned int i = 0; i < pop.size(); ++i ) {
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pop.push_back( _sampler(_distrib) );
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}
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}
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protected:
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D & _distrib;
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edoEstimator<D> & _estimator;
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edoSampler<D> & _sampler;
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};
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/** Wrapping an estimator and a sampler as an eoTransform,
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* the distribution is created at instanciation and replaced at each call.
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*
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* @ingroup Wrappers
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*/
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template<typename D>
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class edoTransformStateless : public edoTransformAdaptive<D>
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{
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public:
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typedef typename D::EOType EOType;
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edoTransformStateless( edoEstimator<D> & estimator, edoSampler<D> & sampler )
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: edoTransformAdaptive<D>( *(new D), estimator, sampler )
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{}
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~edoTransformStateless()
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{
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// delete the temporary distrib allocated in constructor
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delete &(this->_distrib);
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}
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};
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#endif // !_edoTransform_h
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