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SHOGUN
v1.1.0
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SHOGUN
v1.1.0
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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).
Definition at line 38 of file LinearLocalTangentSpaceAlignment.h.
Public Member Functions | |
| CLinearLocalTangentSpaceAlignment () | |
| virtual | ~CLinearLocalTangentSpaceAlignment () |
| virtual const char * | get_name () const |
 Public Member Functions inherited from CLocalTangentSpaceAlignment | |
| CLocalTangentSpaceAlignment () | |
| virtual | ~CLocalTangentSpaceAlignment () |
| 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) |
Protected Member Functions | |
| virtual SGMatrix< float64_t > | construct_embedding (CFeatures *features, SGMatrix< float64_t > matrix, int dimension) |
| Protected Member Functions inherited from CLocalTangentSpaceAlignment | |
| virtual SGMatrix< float64_t > | construct_weight_matrix (CSimpleFeatures< float64_t > *simple_features, float64_t *W_matrix, SGMatrix< int32_t > neighborhood_matrix) |
| HELPER. | |
| Protected Member Functions inherited from CLocallyLinearEmbedding | |
| void | init () |
| HELPERS. | |
| 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) |
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 CLocalTangentSpaceAlignment | |
| static void * | run_ltsa_thread (void *p) |
| THREAD. | |
| Protected Attributes inherited from CLocallyLinearEmbedding | |
| int32_t | m_k |
| FIELDS. | |
| int32_t | m_max_k |
| float64_t | m_reconstruction_shift |
| float64_t | m_nullspace_shift |
| bool | m_use_arpack |
| bool | m_auto_k |
constructor
Definition at line 23 of file LinearLocalTangentSpaceAlignment.cpp.
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virtual |
destructor
Definition at line 28 of file LinearLocalTangentSpaceAlignment.cpp.
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protectedvirtual |
constructs embedding
| simple | features to be used |
| matrix | weight matrix |
| dimension | dimension of embedding |
Definition at line 37 of file LinearLocalTangentSpaceAlignment.cpp.
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virtual |
get name
Reimplemented from CLocalTangentSpaceAlignment.
Definition at line 32 of file LinearLocalTangentSpaceAlignment.cpp.