STK_DiagGaussianMixtureManager.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_DIAGGAUSSIANMIXTUREMANAGER_H
#define STK_DIAGGAUSSIANMIXTUREMANAGER_H
 
#include "../STK_Clust_Util.h"
#include "../STK_IMixtureManager.h"
 
#include "STK_DiagGaussianBridge.h"
 
#define STK_CREATE_MIXTURE(Data, Bridge) \
          Data* p_data = new Data(idData); \
          p_handler()->getData(idData, p_data->dataij() ); \
          registerDataBridge(p_data); \
          return new Bridge( &(p_data->dataij()), idData, nbCluster);
 
namespace STK
{
 
// forward declaration
template<class DataHandler> class DiagGaussianMixtureManager;
 
namespace hidden
{
template <class DataHandler_>
struct MixtureManagerTraits<DiagGaussianMixtureManager<DataHandler_> >
{
  typedef DataHandler_ 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 typename DataHandlerTraits<DataHandler, Type>::Data Data;
  // Classes wrapping the Real and Integer containers
  typedef DataBridge<Data>  DataBridgeType;
};
 
} // namespace hidden
 
template<class DataHandler>
class DiagGaussianMixtureManager: public IMixtureManager<DiagGaussianMixtureManager<DataHandler> >
{
  public:
    typedef typename hidden::MixtureManagerTraits< DiagGaussianMixtureManager >::Type Type;
    typedef typename hidden::MixtureManagerTraits< DiagGaussianMixtureManager >::MissingIndexes MissingIndexes;
    typedef typename hidden::MixtureManagerTraits< DiagGaussianMixtureManager >::MissingValues MissingValues;
    typedef typename hidden::MixtureManagerTraits< DiagGaussianMixtureManager >::Data Data;
    typedef typename hidden::MixtureManagerTraits< DiagGaussianMixtureManager >::DataBridgeType DataBridgeType;
 
    typedef IMixtureManager< DiagGaussianMixtureManager > Base;
    using Base::registerDataBridge;
    using Base::getDataBridge;
    using Base::getIdModel;
    using Base::p_handler;
 
    // eiagonal Gaussian bridges
    typedef DiagGaussianBridge<Clust::Gaussian_sjk_,  Data> MixtureBridge_sjk;
    typedef DiagGaussianBridge<Clust::Gaussian_sk_,   Data> MixtureBridge_sk;
    typedef DiagGaussianBridge<Clust::Gaussian_sj_,   Data> MixtureBridge_sj;
    typedef DiagGaussianBridge<Clust::Gaussian_sjsk_, Data> MixtureBridge_sjsk;
    typedef DiagGaussianBridge<Clust::Gaussian_s_,    Data> MixtureBridge_s;
 
    DiagGaussianMixtureManager(DataHandler const& handler): Base(&handler) {}
    ~DiagGaussianMixtureManager() {}
 
    void getMissingValuesImpl(IMixture* p_mixture, MissingValues& missing) const
    {
      Clust::Mixture idModel = getIdModel(p_mixture->idData());
      if (idModel == Clust::unknown_mixture_) return;
      // up-cast... (Yes it's bad....;)...)
      switch (idModel)
      {
        case Clust::Gaussian_sjk_:
        { static_cast<MixtureBridge_sjk*>(p_mixture)->getMissingValues(missing);}
        break;
        case Clust::Gaussian_sk_:
        { static_cast<MixtureBridge_sk*>(p_mixture)->getMissingValues(missing);}
        break;
        case Clust::Gaussian_sj_:
        { static_cast<MixtureBridge_sj*>(p_mixture)->getMissingValues(missing);}
        break;
        case Clust::Gaussian_sjsk_:
        { static_cast<MixtureBridge_sjsk*>(p_mixture)->getMissingValues(missing);}
        break;
        case Clust::Gaussian_s_:
        { static_cast<MixtureBridge_s*>(p_mixture)->getMissingValues(missing);}
        break;
        default: // idModel is not implemented
        break;
      }
    }
    void getParametersImpl(IMixture* p_mixture, ArrayXX& param) const
    {
      Clust::Mixture idModel = getIdModel(p_mixture->idData());
      if (idModel == Clust::unknown_mixture_) return;
      // up-cast... (Yes it's bad....;)...)
      switch (idModel)
      {
        // Gaussian models
        case Clust::Gaussian_sjk_:
        { static_cast<MixtureBridge_sjk*>(p_mixture)->getParameters(param);}
        break;
        case Clust::Gaussian_sk_:
        { static_cast<MixtureBridge_sk*>(p_mixture)->getParameters(param);}
        break;
        case Clust::Gaussian_sj_:
        { static_cast<MixtureBridge_sj*>(p_mixture)->getParameters(param);}
        break;
        case Clust::Gaussian_sjsk_:
        { static_cast<MixtureBridge_sjsk*>(p_mixture)->getParameters(param);}
        break;
        case Clust::Gaussian_s_:
        { static_cast<MixtureBridge_s*>(p_mixture)->getParameters(param);}
        break;
        default: // idModel is not implemented
        break;
      }
    }
    void setParametersImpl(IMixture* p_mixture, ArrayXX const& param) const
    {
      Clust::Mixture idModel = getIdModel(p_mixture->idData());
      if (idModel == Clust::unknown_mixture_) return;
      // up-cast... (Yes it's bad....;)...)
      switch (idModel)
      {
        // Gaussian models
        case Clust::Gaussian_sjk_:
        { static_cast<MixtureBridge_sjk*>(p_mixture)->setParameters(param);}
        break;
        case Clust::Gaussian_sk_:
        { static_cast<MixtureBridge_sk*>(p_mixture)->setParameters(param);}
        break;
        case Clust::Gaussian_sj_:
        { static_cast<MixtureBridge_sj*>(p_mixture)->setParameters(param);}
        break;
        case Clust::Gaussian_sjsk_:
        { static_cast<MixtureBridge_sjsk*>(p_mixture)->setParameters(param);}
        break;
        case Clust::Gaussian_s_:
        { static_cast<MixtureBridge_s*>(p_mixture)->setParameters(param);}
        break;
        default: // idModel is not implemented
        break;
      }
    }
    IMixture* createMixtureImpl(String const& modelName, String const& idData, int nbCluster)
    { return createMixtureImpl(Clust::stringToMixture(modelName), idData, nbCluster);}
 
 
  private:
    IMixture* createMixtureImpl(Clust::Mixture idModel, String const& idData, int nbCluster)
    {
      switch (idModel)
      {
        // Gaussian models
        case Clust::Gaussian_sjk_:
        { STK_CREATE_MIXTURE(DataBridgeType, MixtureBridge_sjk)}
        break;
        case Clust::Gaussian_sk_:
        { STK_CREATE_MIXTURE(DataBridgeType, MixtureBridge_sk)}
        break;
        case Clust::Gaussian_sj_:
        { STK_CREATE_MIXTURE(DataBridgeType, MixtureBridge_sj)}
        break;
        case Clust::Gaussian_sjsk_:
        { STK_CREATE_MIXTURE(DataBridgeType, MixtureBridge_sjsk)}
        break;
        case Clust::Gaussian_s_:
        { STK_CREATE_MIXTURE(DataBridgeType, MixtureBridge_s)}
        break;
        default:
          return 0; // 0 if idModel is not implemented
          break;
      }
      return 0; // 0 if idModel is not a STK++ model
    }
};
 
} // namespace STK
 
#undef STK_CREATE_MIXTURE
 
#endif /* STK_DIAGGAUSSIANMIXTUREMANAGER_H */