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gnn_prototype.h

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/***************************************************************************
 *  @file gnn_prototype.h
 *  @brief Prototype Node Header File.
 *
 *  @date   : 17-09-03 20:52
 *  @author : Pedro Ortega C. <peortega@dcc.uchile.cl>
 *  Copyright  2003  Pedro Ortega C.
 ****************************************************************************/
/*
 *  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
 *  (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 Library General Public License for more details.
 *
 *  You should have received a copy of the GNU 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.
 */

#ifndef _GNN_PROTOTYPE_H_
#define _GNN_PROTOTYPE_H_

/******************************************/
/* Include Files                          */
/******************************************/

#include <gsl/gsl_matrix.h>
#include "gnn_node.h"



/******************************************/
/* Typedefs                               */
/******************************************/

/**
 * @brief The structure for a \ref gnn_prototype node.
 * @ingroup gnn_prototype_doc
 *
 * This datatype holds the information for a \ref gnn_prototype node.
 * Basically, it extends the \ref gnn_node with special pointers to get fast
 * accesses to the prototype matrix.
 */
typedef struct _gnn_prototype gnn_prototype;

struct _gnn_prototype
{
    gnn_node node;               /**< The underlying \ref gnn_node. */

    gsl_vector *y;               /**< A buffer of the outputs.      */
    gsl_vector *row;             /**< Prototype (row) buffer.       */
    gsl_vector *col;             /**< Column buffer.                */

    gsl_matrix_view      D_view; /**< View of matrix A.             */
    gsl_matrix_view     dD_view; /**< View of matrix dA.            */
    gsl_matrix_int_view Df_view; /**< View of flags for A.          */

    gsl_matrix     *D;           /**< Pointer to matrix A.          */
    gsl_matrix     *dD;          /**< Pointer to matrix dA.         */
    gsl_matrix_int *Df;          /**< Pointer to flags for A.       */

};


/******************************************/
/* Public Interface                       */
/******************************************/

gnn_node *
gnn_prototype_new (size_t input_size, size_t output_size,
                                              double min, double max);

gnn_node *
gnn_prototype_standard_new (size_t input_size, size_t output_size);

int
gnn_prototype_vector_freeze (gnn_node *node, size_t j);

int
gnn_prototype_vector_unfreeze (gnn_node *node, size_t j);

int
gnn_prototype_vector_set (gnn_node *node, size_t j, const gsl_vector *v);

int
gnn_prototype_vector_get (gnn_node *node, size_t j, gsl_vector *v);



#endif /* _GNN_PROTOTYPE_H_ */

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