STK_KernelMixtureManager.h

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/*--------------------------------------------------------------------*/
/*     Copyright (C) 2004-2016  Serge Iovleff, Université Lille 1, Inria
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
    License along with this program; if not, write to the
    Free Software Foundation, Inc.,
    59 Temple Place,
    Suite 330,
    Boston, MA 02111-1307
    USA
 
    Contact : S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
*/
 
/*
 * Project:  stkpp::Clustering
 * created on: 15 mars 2014
 * Author:   iovleff, S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
 **/
 
#ifndef STK_KERNELMIXTUREMANAGER_H
#define STK_KERNELMIXTUREMANAGER_H
 
#include "../STK_Clust_Util.h"
#include "../STK_IMixtureManager.h"
 
#include "STK_KmmBridge.h"
#include "STK_KernelHandler.h"
 
namespace STK
{
// forward declaration
class KernelMixtureManager;
 
namespace hidden
{
template<>
struct MixtureManagerTraits< KernelMixtureManager >
{
  private:
   class Void {};
  public:
    typedef KernelHandler DataHandler;
    typedef Real Type;
    typedef std::vector< std::pair<int,int> > MissingIndexes;
    typedef std::vector< std::pair<std::pair<int,int>, Type > > MissingValues;
 
    // All data handlers will store and return a specific container for
    // the data they handle. The DataHandlerTraits class allow us to know the
    // type of these containers when data is of type Type.
    typedef Void Data;
    // Classes wrapping the Real and Integer containers
    typedef Void  DataBridgeType;
};
 
} // namespace hidden
 
class KernelMixtureManager: public IMixtureManager<KernelMixtureManager>
{
  public:
    typedef typename hidden::MixtureManagerTraits< KernelMixtureManager >::DataHandler DataHandler;
    typedef typename hidden::MixtureManagerTraits< KernelMixtureManager >::Type Type;
    typedef typename hidden::MixtureManagerTraits< KernelMixtureManager >::MissingIndexes MissingIndexes;
    typedef typename hidden::MixtureManagerTraits< KernelMixtureManager >::MissingValues MissingValues;
    typedef typename hidden::MixtureManagerTraits< KernelMixtureManager >::Data Data;
    typedef typename hidden::MixtureManagerTraits< KernelMixtureManager >::DataBridgeType DataBridgeType;
 
    typedef IMixtureManager<KernelMixtureManager> Base;
 
    typedef KmmBridge< Clust::Kmm_sk_, CSquareX> KmmBridge_sk;
    typedef KmmBridge< Clust::Kmm_s_, CSquareX> KmmBridge_s;
 
    KernelMixtureManager(KernelHandler const& handler);
    ~KernelMixtureManager();
 
    void setDim(IMixture* p_mixture, Real const& dim) const;
    template<class Vector>
    void setDim(IMixture* p_mixture, ExprBase<Vector> const& dim) const;
    void getParametersImpl(IMixture* p_mixture, ArrayXX& param) const;
    void setParametersImpl(IMixture* p_mixture, ArrayXX const& param) const;
 
    IMixture* createMixtureImpl(String const& modelName, String const& idData, int nbCluster);
 
  private:
    IMixture* createMixtureImpl(Clust::Mixture idModel, String const& idData, int nbCluster);
};
 
/* set the dimension of the kernel mixture model */
template<class Vector>
void KernelMixtureManager::setDim(IMixture* p_mixture, ExprBase<Vector> const& dim) const
{
  STK_STATIC_ASSERT_ONE_DIMENSION_ONLY(Vector);
  if (!p_mixture) return;
  Clust::Mixture idModel = getIdModel(p_mixture->idData());
  // up-cast... (Yes it's bad....;)...)
  switch (idModel)
  {
    // Kernel models
    case Clust::Kmm_sk_:
    { static_cast<KmmBridge_sk*>(p_mixture)->setDim(dim.asDerived());}
    break;
    case Clust::Kmm_s_:
    { static_cast<KmmBridge_s*>(p_mixture)->setDim(dim.asDerived());}
    break;
    default: // idModel is not implemented
    break;
  }
}
 
 
} // namespace STK
 
#endif /* STK_KERNELMIXTUREMANAGER_H */