/usr/include/shogun/converter/LinearLocalTangentSpaceAlignment.h is in libshogun-dev 1.1.0-4ubuntu2.
This file is owned by root:root, with mode 0o644.
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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) 2011 Sergey Lisitsyn
* Copyright (C) 2011 Sergey Lisitsyn
*/
#ifndef LINEARLOCALTANGENTSPACEALIGNMENT_H_
#define LINEARLOCALTANGENTSPACEALIGNMENT_H_
#include <shogun/lib/config.h>
#ifdef HAVE_LAPACK
#include <shogun/converter/LocalTangentSpaceAlignment.h>
#include <shogun/features/Features.h>
#include <shogun/features/SimpleFeatures.h>
#include <shogun/distance/Distance.h>
namespace shogun
{
class CFeatures;
class CDistance;
/** @brief LinearLocalTangentSpaceAlignment converter used to
* construct embeddings as described in:
*
* Zhang, T., Yang, J., Zhao, D., & Ge, X. (2007).
* Linear local tangent space alignment and application to face recognition.
* Neurocomputing, 70(7-9), 1547-1553.
* Retrieved from http://linkinghub.elsevier.com/retrieve/pii/S0925231206004577
*
* This method is hardly applicable to very high-dimensional data due to
* necessity to solve eigenproblem involving matrix of size (dim x dim).
*
*/
class CLinearLocalTangentSpaceAlignment: public CLocalTangentSpaceAlignment
{
public:
/** constructor */
CLinearLocalTangentSpaceAlignment();
/** destructor */
virtual ~CLinearLocalTangentSpaceAlignment();
/** get name */
virtual const char* get_name() const;
protected:
/** constructs embedding
* @param simple features to be used
* @param matrix weight matrix
* @param dimension dimension of embedding
* @return null-space approximation feature matrix
*/
virtual SGMatrix<float64_t> construct_embedding(CFeatures* features, SGMatrix<float64_t> matrix, int dimension);
};
}
#endif /* HAVE_LAPACK */
#endif /* LINEARLOCALTANGENTSPACEALIGNMENT_H_ */
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