SHOGUN
v1.1.0
|
Computes the standard linear kernel on CDotFeatures.
Formally, it computes
Definition at line 33 of file LinearKernel.h.
Public Member Functions | |
CLinearKernel () | |
CLinearKernel (CDotFeatures *l, CDotFeatures *r) | |
virtual | ~CLinearKernel () |
virtual bool | init (CFeatures *l, CFeatures *r) |
virtual void | cleanup () |
virtual EKernelType | get_kernel_type () |
virtual const char * | get_name () const |
virtual bool | init_optimization (int32_t num_suppvec, int32_t *sv_idx, float64_t *alphas) |
virtual bool | init_optimization (CKernelMachine *km) |
virtual bool | delete_optimization () |
virtual float64_t | compute_optimized (int32_t idx) |
virtual void | clear_normal () |
virtual void | add_to_normal (int32_t idx, float64_t weight) |
const float64_t * | get_normal (int32_t &len) |
void | get_w (float64_t **dst_w, int32_t *dst_dims) |
void | set_w (float64_t *src_w, int32_t src_w_dim) |
![]() | |
CDotKernel () | |
CDotKernel (int32_t cachesize) | |
CDotKernel (CFeatures *l, CFeatures *r) | |
virtual EFeatureClass | get_feature_class () |
virtual EFeatureType | get_feature_type () |
![]() | |
CKernel () | |
CKernel (int32_t size) | |
CKernel (CFeatures *l, CFeatures *r, int32_t size) | |
virtual | ~CKernel () |
float64_t | kernel (int32_t idx_a, int32_t idx_b) |
SGMatrix< float64_t > | get_kernel_matrix () |
virtual SGVector< float64_t > | get_kernel_col (int32_t j) |
virtual SGVector< float64_t > | get_kernel_row (int32_t i) |
template<class T > | |
SGMatrix< T > | get_kernel_matrix () |
virtual bool | set_normalizer (CKernelNormalizer *normalizer) |
virtual CKernelNormalizer * | get_normalizer () |
virtual bool | init_normalizer () |
void | load (CFile *loader) |
void | save (CFile *writer) |
CFeatures * | get_lhs () |
CFeatures * | get_rhs () |
virtual int32_t | get_num_vec_lhs () |
virtual int32_t | get_num_vec_rhs () |
virtual bool | has_features () |
bool | get_lhs_equals_rhs () |
virtual void | remove_lhs_and_rhs () |
virtual void | remove_lhs () |
virtual void | remove_rhs () |
takes all necessary steps if the rhs is removed from kernel | |
void | set_cache_size (int32_t size) |
int32_t | get_cache_size () |
void | list_kernel () |
bool | has_property (EKernelProperty p) |
EOptimizationType | get_optimization_type () |
virtual void | set_optimization_type (EOptimizationType t) |
bool | get_is_initialized () |
bool | init_optimization_svm (CSVM *svm) |
virtual void | compute_batch (int32_t num_vec, int32_t *vec_idx, float64_t *target, int32_t num_suppvec, int32_t *IDX, float64_t *alphas, float64_t factor=1.0) |
float64_t | get_combined_kernel_weight () |
void | set_combined_kernel_weight (float64_t nw) |
virtual int32_t | get_num_subkernels () |
virtual void | compute_by_subkernel (int32_t vector_idx, float64_t *subkernel_contrib) |
virtual const float64_t * | get_subkernel_weights (int32_t &num_weights) |
virtual void | set_subkernel_weights (SGVector< float64_t > weights) |
![]() | |
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 Attributes | |
float64_t * | normal |
int32_t | normal_length |
Additional Inherited Members | |
![]() | |
SGIO * | io |
Parallel * | parallel |
Version * | version |
Parameter * | m_parameters |
Parameter * | m_model_selection_parameters |
![]() | |
virtual float64_t | compute (int32_t idx_a, int32_t idx_b) |
![]() | |
template<class T > | |
static void * | get_kernel_matrix_helper (void *p) |
CLinearKernel | ( | ) |
constructor
Definition at line 20 of file LinearKernel.cpp.
CLinearKernel | ( | CDotFeatures * | l, |
CDotFeatures * | r | ||
) |
constructor
l | features of left-hand side |
r | features of right-hand side |
Definition at line 26 of file LinearKernel.cpp.
|
virtual |
Definition at line 33 of file LinearKernel.cpp.
|
virtual |
add to normal vector
idx | where to add |
weight | what to add |
Reimplemented from CKernel.
Definition at line 66 of file LinearKernel.cpp.
|
virtual |
|
virtual |
|
virtual |
compute optimized
idx | index to compute |
Reimplemented from CKernel.
Definition at line 108 of file LinearKernel.cpp.
|
virtual |
delete optimization
Reimplemented from CKernel.
Definition at line 98 of file LinearKernel.cpp.
|
virtual |
return what type of kernel we are
Implements CDotKernel.
Definition at line 64 of file LinearKernel.h.
|
virtual |
return the kernel's name
Reimplemented from CDotKernel.
Definition at line 70 of file LinearKernel.h.
const float64_t* get_normal | ( | int32_t & | len | ) |
get normal
len | where length of normal vector will be stored |
Definition at line 116 of file LinearKernel.h.
void get_w | ( | float64_t ** | dst_w, |
int32_t * | dst_dims | ||
) |
get normal vector (swig compatible)
dst_w | store w in this argument |
dst_dims | dimension of w |
Definition at line 135 of file LinearKernel.h.
initialize kernel
l | features of left-hand side |
r | features of right-hand side |
Reimplemented from CDotKernel.
Definition at line 38 of file LinearKernel.cpp.
|
virtual |
optimizable kernel, i.e. precompute normal vector and as phi(x) = x do scalar product in input space
num_suppvec | number of support vectors |
sv_idx | support vector index |
alphas | alphas |
Reimplemented from CKernel.
Definition at line 73 of file LinearKernel.cpp.
|
virtual |
void set_w | ( | float64_t * | src_w, |
int32_t | src_w_dim | ||
) |
set normal vector (swig compatible)
src_w | new w |
src_w_dim | dimension of new w - must fit dim of lhs |
Definition at line 151 of file LinearKernel.h.
|
protected |
normal vector (used in case of optimized kernel)
Definition at line 160 of file LinearKernel.h.
|
protected |
length of normal vector
Definition at line 162 of file LinearKernel.h.