Detailed Description

NeighborhoodPreservingEmbedding converter used to construct embeddings as described in:

He, X., Cai, D., Yan, S., & Zhang, H.-J. (2005). Neighborhood preserving embedding. Tenth IEEE International Conference on Computer Vision ICCV05 Volume 1, 2, 1208-1213. Ieee. Retrieved from http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=1544858

This method is hardly applicable to very high-dimensional data due to necessity to solve eigenproblem involving matrix of size (dim x dim).

Definition at line 38 of file NeighborhoodPreservingEmbedding.h.

Inheritance diagram for CNeighborhoodPreservingEmbedding:

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Public Member Functions
	CNeighborhoodPreservingEmbedding ()

virtual	~CNeighborhoodPreservingEmbedding ()

virtual const char *	get_name () const

Public Member Functions inherited from CLocallyLinearEmbedding
	CLocallyLinearEmbedding ()

virtual	~CLocallyLinearEmbedding ()

virtual CFeatures *	apply (CFeatures *features)

void	set_k (int32_t k)

int32_t	get_k () const

void	set_max_k (int32_t max_k)

int32_t	get_max_k () const

void	set_auto_k (bool auto_k)

bool	get_auto_k () const

void	set_reconstruction_shift (float64_t reconstruction_shift)

float64_t	get_reconstruction_shift () const

void	set_nullspace_shift (float64_t nullspace_shift)

float64_t	get_nullspace_shift () const

void	set_use_arpack (bool use_arpack)

bool	get_use_arpack () const

Public Member Functions inherited from CEmbeddingConverter
	CEmbeddingConverter ()

virtual	~CEmbeddingConverter ()

virtual CSimpleFeatures < float64_t > *	embed (CFeatures *features)

void	set_target_dim (int32_t dim)

int32_t	get_target_dim () const

void	set_distance (CDistance *distance)

CDistance *	get_distance () const

void	set_kernel (CKernel *kernel)

CKernel *	get_kernel () const

Public Member Functions inherited from CConverter
	CConverter ()

virtual	~CConverter ()

Public Member Functions inherited from CSGObject
	CSGObject ()

	CSGObject (const CSGObject &orig)

virtual	~CSGObject ()

virtual bool	is_generic (EPrimitiveType *generic) const

template<class T >
void	set_generic ()

void	unset_generic ()

virtual void	print_serializable (const char *prefix="")

virtual bool	save_serializable (CSerializableFile file, const char prefix="")

virtual bool	load_serializable (CSerializableFile file, const char prefix="")

void	set_global_io (SGIO *io)

SGIO *	get_global_io ()

void	set_global_parallel (Parallel *parallel)

Parallel *	get_global_parallel ()

void	set_global_version (Version *version)

Version *	get_global_version ()

SGVector< char * >	get_modelsel_names ()

char *	get_modsel_param_descr (const char *param_name)

index_t	get_modsel_param_index (const char *param_name)

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

template<>
void	set_generic ()

Protected Member Functions
virtual SGMatrix< float64_t >	construct_embedding (CFeatures *features, SGMatrix< float64_t > matrix, int dimension)

Protected Member Functions inherited from CLocallyLinearEmbedding
void	init ()
	HELPERS. More...

virtual SGMatrix< float64_t >	construct_weight_matrix (CSimpleFeatures< float64_t > simple_features, float64_t W_matrix, SGMatrix< int32_t > neighborhood_matrix)

virtual SGMatrix< float64_t >	construct_embedding (SGMatrix< float64_t > matrix, int dimension)

virtual SGMatrix< int32_t >	get_neighborhood_matrix (SGMatrix< float64_t > distance_matrix, int32_t k)

int32_t	estimate_k (CSimpleFeatures< float64_t > *simple_features, SGMatrix< int32_t > neighborhood_matrix)

float64_t	compute_reconstruction_error (int32_t k, int dim, int N, float64_t feature_matrix, float64_t z_matrix, float64_t covariance_matrix, float64_t resid_vector, float64_t *id_vector, SGMatrix< int32_t > neighborhood_matrix)

Protected Member Functions inherited from CEmbeddingConverter
void	init ()

Protected Member Functions inherited from CSGObject
virtual void	load_serializable_pre () throw (ShogunException)

virtual void	load_serializable_post () throw (ShogunException)

virtual void	save_serializable_pre () throw (ShogunException)

virtual void	save_serializable_post () throw (ShogunException)

Additional Inherited Members
Public Attributes inherited from CSGObject
SGIO *	io

Parallel *	parallel

Version *	version

Parameter *	m_parameters

Parameter *	m_model_selection_parameters

Static Protected Member Functions inherited from CLocallyLinearEmbedding
static void *	run_neighborhood_thread (void *p)
	THREADS. More...

static void *	run_linearreconstruction_thread (void *p)

Protected Attributes inherited from CLocallyLinearEmbedding
int32_t	m_k
	FIELDS. More...

int32_t	m_max_k

float64_t	m_reconstruction_shift

float64_t	m_nullspace_shift

bool	m_use_arpack

bool	m_auto_k

Protected Attributes inherited from CEmbeddingConverter
int32_t	m_target_dim

CDistance *	m_distance

CKernel *	m_kernel