/usr/include/shogun/multiclass/ecoc/ECOCEncoder.h is in libshogun-dev 3.2.0-7.3build4.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | /*
* 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) 2012 Chiyuan Zhang
* Copyright (C) 2012 Chiyuan Zhang
*/
#ifndef ECOCENCODER_H__
#define ECOCENCODER_H__
#include <shogun/base/Parameter.h>
#include <shogun/base/SGObject.h>
#include <shogun/lib/DataType.h>
namespace shogun
{
/**
* @brief ECOCEncoder produce an ECOC codebook.
*
* Note: for easy of implementation, our codebook is column-based. E.g. the
* code-length is L and there are K classes, then our codebook will be a
* L-by-K matrix, where each column corresponds to the code for each of the
* K classes.
*
* The elements in the codebook can be
*
* - +1: positive class
* - -1: negative class
* - 0: ignore this class
*/
class CECOCEncoder: public CSGObject
{
public:
/** constructor */
CECOCEncoder() {}
/** destructor */
virtual ~CECOCEncoder() {}
/** get name */
virtual const char* get_name() const
{
return "ECOCEncoder";
}
/** init codebook.
* @param num_classes number of classes in this problem
*/
virtual SGMatrix<int32_t> create_codebook(int32_t num_classes)=0;
};
}
#endif /* end of include guard: ECOCENCODER_H__ */
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