HessianLocallyLinearEmbedding.h

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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 3 of the License, or
 * (at your option) any later version.
 *
 * Written (W) 2011 Sergey Lisitsyn
 * Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society
 */

#ifndef HESSIANLOCALLYLINEAREMBEDDING_H_
#define HESSIANLOCALLYLINEAREMBEDDING_H_
#include <shogun/lib/config.h>
#ifdef HAVE_LAPACK
#include <shogun/converter/LocallyLinearEmbedding.h>
#include <shogun/features/Features.h>
#include <shogun/distance/Distance.h>

namespace shogun
{

class CFeatures;
class CDistance;

class CHessianLocallyLinearEmbedding: public CLocallyLinearEmbedding
{
public:

    CHessianLocallyLinearEmbedding();

    virtual ~CHessianLocallyLinearEmbedding();

    virtual const char* get_name() const;

protected:

    virtual SGMatrix<float64_t> construct_weight_matrix(CDenseFeatures<float64_t>* simple_features,float64_t* W_matrix,
                                                            SGMatrix<int32_t> neighborhood_matrix);

protected:

    static void* run_hessianestimation_thread(void* p);

};
}

#endif /* HAVE_LAPACK */
#endif /* HESSIANLOCALLYLINEAREMBEDDING_H_ */