/usr/include/shogun/multiclass/ecoc/ECOCIHDDecoder.h is in libshogun-dev 3.1.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 59 60 61 62 63 | /*
* 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 ECOCIHDDECODER_H__
#define ECOCIHDDECODER_H__
#ifdef HAVE_LAPACK
#include <shogun/multiclass/ecoc/ECOCDecoder.h>
namespace shogun
{
/** Inverse Hamming Decoding.
*
* \f[
* IHD(q, B) = \arg\max (\Delta^{-1}D)
* \f]
* where
* \f[
* \Delta_{ij} = HD(b_i,b_j)
* \f]
* and
* \f[
* D_i = HD(q, b_i)
* \f]
*/
class CECOCIHDDecoder: public CECOCDecoder
{
public:
/** constructor */
CECOCIHDDecoder() {}
/** destructor */
virtual ~CECOCIHDDecoder() {}
/** get name */
virtual const char* get_name() const { return "ECOCIHDDecoder"; }
/** decide label.
* @param outputs outputs by classifiers
* @param codebook ECOC codebook
*/
virtual int32_t decide_label(const SGVector<float64_t> outputs, const SGMatrix<int32_t> codebook);
protected:
/** update delta cache */
void update_delta_cache(const SGMatrix<int32_t> codebook);
SGMatrix<float64_t> m_delta;
SGMatrix<int32_t> m_codebook;
};
} // namespace shogun
#endif // HAVE_LAPACK
#endif /* end of include guard: ECOCIHDDECODER_H__ */
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