importanceSampling.h

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/***************************************************************************
 *   Copyright (C) 2005 by Pierre-Henri WUILLEMIN et Christophe GONZALES   *
 *   {prenom.nom}_at_lip6.fr                                               *
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 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
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 *   This program is distributed in the hope that it will be useful,       *
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
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 ***************************************************************************/
#ifndef GUM_IMPORTANCE_INFERENCE_H
#define GUM_IMPORTANCE_INFERENCE_H

#include <agrum/BN/inference/tools/samplingInference.h>

namespace gum {

  template < typename GUM_SCALAR >
  class ImportanceSampling : public SamplingInference< GUM_SCALAR > {
    public:
    explicit ImportanceSampling(const IBayesNet< GUM_SCALAR >* bn);


    ~ImportanceSampling() override;

    protected:
    Instantiation _burnIn() override;



    Instantiation _draw(GUM_SCALAR* w, Instantiation prev) override;



    void _unsharpenBN(BayesNetFragment< GUM_SCALAR >* bn, float epsilon);


    void _onContextualize(BayesNetFragment< GUM_SCALAR >* bn) override;
  };


#ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
  extern template class ImportanceSampling< double >;
#endif
}   // namespace gum

#include <agrum/BN/inference/importanceSampling_tpl.h>

#endif