/usr/include/shogun/converter/DiffusionMaps.h is in libshogun-dev 3.2.0-7.5.
This file is owned by root:root, with mode 0o644.
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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 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 | /*
* 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) 2011-2013 Sergey Lisitsyn
* Copyright (C) 2011-2013 Berlin Institute of Technology and Max-Planck-Society
*/
#ifndef DIFFUSIONMAPS_H_
#define DIFFUSIONMAPS_H_
#include <shogun/lib/config.h>
#include <shogun/converter/EmbeddingConverter.h>
#ifdef HAVE_EIGEN3
#include <shogun/features/Features.h>
#include <shogun/kernel/Kernel.h>
namespace shogun
{
class CFeatures;
class CKernel;
/** @brief class DiffusionMaps used to preprocess given data
* using Diffusion Maps dimensionality
* reduction technique as described in
*
* Coifman, R., & Lafon, S. (2006).
* Diffusion maps.
* Applied and Computational Harmonic Analysis, 21(1), 5-30. Elsevier.
* Retrieved from http://linkinghub.elsevier.com/retrieve/pii/S1063520306000546
*
* Uses implementation from the Tapkee library.
*
* To use this converter with static interfaces please refer it by
* sg('create_converter','diffusion_maps',t,width);
*
*/
class CDiffusionMaps: public CEmbeddingConverter
{
public:
/** constructor */
CDiffusionMaps();
/** destructor */
virtual ~CDiffusionMaps();
/** apply preprocessor to features
* @param features
*/
virtual CFeatures* apply(CFeatures* features);
/** embed distance
* @param distance to use for embedding
* @return embedding simple features
*/
virtual CDenseFeatures<float64_t>* embed_distance(CDistance* distance);
/** setter for t parameter
* @param t t value
*/
void set_t(int32_t t);
/** getter for t parameter
* @return t value
*/
int32_t get_t() const;
/** setter for width parameter
* @param width width value
*/
void set_width(float64_t width);
/** getter for width parameter
* @return width value
*/
float64_t get_width() const;
/** get name */
virtual const char* get_name() const;
protected:
/** default init */
void init();
protected:
/** number of steps */
int32_t m_t;
/** gaussian kernel width */
float64_t m_width;
};
}
#endif /* HAVE_LAPACK */
#endif /* DIFFUSIONMAPS_H_ */
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