SparsePreprocessor.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) 1999-2009 Soeren Sonnenburg
 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
 */

#ifndef _CSPARSEPREPROC__H__
#define _CSPARSEPREPROC__H__

#include <shogun/features/SparseFeatures.h>
#include <shogun/lib/common.h>
#include <shogun/preprocessor/Preprocessor.h>

#include <stdio.h>

namespace shogun
{
template <class ST> class SGSparseVector;
template <class ST> class CSparseFeatures;

template <class ST> class CSparsePreprocessor : public CPreprocessor
{
public:
    CSparsePreprocessor() : CPreprocessor() {}

    virtual SGSparseVector<ST>* apply_to_sparse_feature_matrix(CSparseFeatures<ST>* f)=0;

    virtual SGSparseVector<ST>* apply_to_sparse_feature_vector(SGSparseVector<ST>* f, int32_t &len)=0;

    inline virtual EFeatureClass get_feature_class() { return C_SPARSE; }

    virtual inline const char* get_name() const { return "UNKNOWN"; }

    virtual inline EPreprocessorType get_type() const { return P_UNKNOWN; }
  
};
}
#endif