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SHOGUN
4.1.0
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The FixedDegree String kernel takes as input two strings of same size and counts the number of matches of length d.
\[ k({\bf x}, {\bf x'}) = \sum_{i=0}^{l-d} I({\bf x}_{i,i+1,\dots,i+d-1} = {\bf x'}_{i,i+1,\dots,i+d-1}) \]
Note that additional normalisation is applied, i.e.
\[ k'({\bf x}, {\bf x'})=\frac{k({\bf x}, {\bf x'})}{\sqrt{k({\bf x}, {\bf x})k({\bf x'}, {\bf x'})}} \]
在文件 FixedDegreeStringKernel.h 第 33 行定义.
Public 成员函数 | |
| CFixedDegreeStringKernel () | |
| CFixedDegreeStringKernel (int32_t size, int32_t degree) | |
| CFixedDegreeStringKernel (CStringFeatures< char > *l, CStringFeatures< char > *r, int32_t degree) | |
| virtual | ~CFixedDegreeStringKernel () |
| virtual bool | init (CFeatures *l, CFeatures *r) |
| virtual void | cleanup () |
| virtual EKernelType | get_kernel_type () |
| virtual const char * | get_name () const |
| virtual EFeatureClass | get_feature_class () |
| virtual EFeatureType | get_feature_type () |
| float64_t | kernel (int32_t idx_a, int32_t idx_b) |
| SGMatrix< float64_t > | get_kernel_matrix () |
| template<class T > | |
| SGMatrix< T > | get_kernel_matrix () |
| SGVector< float64_t > | get_kernel_diagonal (SGVector< float64_t > preallocated=SGVector< float64_t >()) |
| virtual SGVector< float64_t > | get_kernel_col (int32_t j) |
| virtual SGVector< float64_t > | get_kernel_row (int32_t i) |
| void | get_kernel_row (int32_t docnum, int32_t *active2dnum, float64_t *buffer, bool full_line=false) |
| virtual float64_t | sum_symmetric_block (index_t block_begin, index_t block_size, bool no_diag=true) |
| virtual float64_t | sum_block (index_t block_begin_row, index_t block_begin_col, index_t block_size_row, index_t block_size_col, bool no_diag=false) |
| virtual SGVector< float64_t > | row_wise_sum_symmetric_block (index_t block_begin, index_t block_size, bool no_diag=true) |
| virtual SGMatrix< float64_t > | row_wise_sum_squared_sum_symmetric_block (index_t block_begin, index_t block_size, bool no_diag=true) |
| virtual SGVector< float64_t > | row_col_wise_sum_block (index_t block_begin_row, index_t block_begin_col, index_t block_size_row, index_t block_size_col, bool no_diag=false) |
| 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 更多... | |
| void | set_cache_size (int32_t size) |
| int32_t | get_cache_size () |
| void | cache_reset () |
| int32_t | get_max_elems_cache () |
| int32_t | get_activenum_cache () |
| void | cache_kernel_row (int32_t x) |
| void | cache_multiple_kernel_rows (int32_t *key, int32_t varnum) |
| void | kernel_cache_reset_lru () |
| void | kernel_cache_shrink (int32_t totdoc, int32_t num_shrink, int32_t *after) |
| void | resize_kernel_cache (KERNELCACHE_IDX size, bool regression_hack=false) |
| void | set_time (int32_t t) |
| int32_t | kernel_cache_touch (int32_t cacheidx) |
| int32_t | kernel_cache_check (int32_t cacheidx) |
| int32_t | kernel_cache_space_available () |
| void | kernel_cache_init (int32_t size, bool regression_hack=false) |
| void | kernel_cache_cleanup () |
| void | list_kernel () |
| bool | has_property (EKernelProperty p) |
| virtual void | clear_normal () |
| virtual void | add_to_normal (int32_t vector_idx, float64_t weight) |
| EOptimizationType | get_optimization_type () |
| virtual void | set_optimization_type (EOptimizationType t) |
| bool | get_is_initialized () |
| virtual bool | init_optimization (int32_t count, int32_t *IDX, float64_t *weights) |
| virtual bool | delete_optimization () |
| bool | init_optimization_svm (CSVM *svm) |
| virtual float64_t | compute_optimized (int32_t vector_idx) |
| 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 SGVector< float64_t > | get_subkernel_weights () |
| virtual void | set_subkernel_weights (SGVector< float64_t > weights) |
| virtual SGMatrix< float64_t > | get_parameter_gradient (const TParameter *param, index_t index=-1) |
| virtual SGVector< float64_t > | get_parameter_gradient_diagonal (const TParameter *param, index_t index=-1) |
| virtual CSGObject * | shallow_copy () const |
| virtual CSGObject * | deep_copy () const |
| virtual bool | is_generic (EPrimitiveType *generic) const |
| template<class T > | |
| 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 () |
| template<> | |
| void | set_generic () |
| template<> | |
| void | set_generic () |
| template<> | |
| 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 () |
| SGStringList< char > | get_modelsel_names () |
| void | print_modsel_params () |
| char * | get_modsel_param_descr (const char *param_name) |
| index_t | get_modsel_param_index (const char *param_name) |
| void | build_gradient_parameter_dictionary (CMap< TParameter *, CSGObject * > *dict) |
| virtual void | update_parameter_hash () |
| virtual bool | parameter_hash_changed () |
| virtual bool | equals (CSGObject *other, float64_t accuracy=0.0, bool tolerant=false) |
| virtual CSGObject * | clone () |
静态 Public 成员函数 | |
| static CKernel * | obtain_from_generic (CSGObject *kernel) |
Public 属性 | |
| SGIO * | io |
| Parallel * | parallel |
| Version * | version |
| Parameter * | m_parameters |
| Parameter * | m_model_selection_parameters |
| Parameter * | m_gradient_parameters |
| uint32_t | m_hash |
Protected 成员函数 | |
| float64_t | compute (int32_t idx_a, int32_t idx_b) |
| void | set_property (EKernelProperty p) |
| void | unset_property (EKernelProperty p) |
| void | set_is_initialized (bool p_init) |
| int32_t | compute_row_start (int64_t offs, int32_t n, bool symmetric) |
| virtual void | load_serializable_post () throw (ShogunException) |
| virtual void | save_serializable_pre () throw (ShogunException) |
| virtual void | save_serializable_post () throw (ShogunException) |
| virtual void | register_params () |
| virtual void | load_serializable_pre () throw (ShogunException) |
静态 Protected 成员函数 | |
| template<class T > | |
| static void * | get_kernel_matrix_helper (void *p) |
Protected 属性 | |
| int32_t | degree |
| int32_t | cache_size |
| cache_size in MB 更多... | |
| KERNEL_CACHE | kernel_cache |
| kernel cache 更多... | |
| KERNELCACHE_ELEM * | kernel_matrix |
| CFeatures * | lhs |
| feature vectors to occur on left hand side 更多... | |
| CFeatures * | rhs |
| feature vectors to occur on right hand side 更多... | |
| bool | lhs_equals_rhs |
| lhs 更多... | |
| int32_t | num_lhs |
| number of feature vectors on left hand side 更多... | |
| int32_t | num_rhs |
| number of feature vectors on right hand side 更多... | |
| float64_t | combined_kernel_weight |
| bool | optimization_initialized |
| EOptimizationType | opt_type |
| uint64_t | properties |
| CKernelNormalizer * | normalizer |
default constructor
在文件 FixedDegreeStringKernel.cpp 第 27 行定义.
| CFixedDegreeStringKernel | ( | int32_t | size, |
| int32_t | degree | ||
| ) |
| CFixedDegreeStringKernel | ( | CStringFeatures< char > * | l, |
| CStringFeatures< char > * | r, | ||
| int32_t | degree | ||
| ) |
constructor
| l | features of left-hand side |
| r | features of right-hand side |
| degree | the degree |
在文件 FixedDegreeStringKernel.cpp 第 39 行定义.
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virtual |
在文件 FixedDegreeStringKernel.cpp 第 47 行定义.
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virtualinherited |
add vector*factor to 'virtual' normal vector
| vector_idx | index |
| weight | weight |
被 CCombinedKernel, CWeightedDegreeStringKernel, CWeightedDegreePositionStringKernel, CCommUlongStringKernel, CCommWordStringKernel, CLinearKernel, CLinearStringKernel , 以及 CWeightedCommWordStringKernel 重载.
在文件 Kernel.cpp 第 853 行定义.
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Builds a dictionary of all parameters in SGObject as well of those of SGObjects that are parameters of this object. Dictionary maps parameters to the objects that own them.
| dict | dictionary of parameters to be built. |
在文件 SGObject.cpp 第 597 行定义.
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virtualinherited |
for optimizable kernels, i.e. kernels where the weight vector can be computed explicitly (if it fits into memory)
被 CCombinedKernel, CWeightedDegreeStringKernel, CWeightedDegreePositionStringKernel, CCommUlongStringKernel, CCommWordStringKernel, CLinearKernel , 以及 CLinearStringKernel 重载.
在文件 Kernel.cpp 第 858 行定义.
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virtualinherited |
Creates a clone of the current object. This is done via recursively traversing all parameters, which corresponds to a deep copy. Calling equals on the cloned object always returns true although none of the memory of both objects overlaps.
在文件 SGObject.cpp 第 714 行定义.
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protectedvirtual |
compute kernel function for features a and b idx_{a,b} denote the index of the feature vectors in the corresponding feature object
| idx_a | index a |
| idx_b | index b |
实现了 CKernel.
在文件 FixedDegreeStringKernel.cpp 第 63 行定义.
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virtualinherited |
computes output for a batch of examples in an optimized fashion (favorable if kernel supports it, i.e. has KP_BATCHEVALUATION. to the outputvector target (of length num_vec elements) the output for the examples enumerated in vec_idx are added. therefore make sure that it is initialized with ZERO. the following num_suppvec, IDX, alphas arguments are the number of support vectors, their indices and weights
被 CCombinedKernel, CWeightedDegreeStringKernel , 以及 CWeightedDegreePositionStringKernel 重载.
在文件 Kernel.cpp 第 846 行定义.
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virtualinherited |
compute by subkernel
| vector_idx | index |
| subkernel_contrib | subkernel contribution |
被 CCombinedKernel, CWeightedDegreeStringKernel , 以及 CWeightedDegreePositionStringKernel 重载.
在文件 Kernel.cpp 第 868 行定义.
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virtualinherited |
compute optimized
| vector_idx | index to compute |
被 CCombinedKernel, CWeightedDegreeStringKernel, CWeightedDegreePositionStringKernel, CCommWordStringKernel, CCommUlongStringKernel, CLinearKernel, CLinearStringKernel , 以及 CWeightedCommWordStringKernel 重载.
在文件 Kernel.cpp 第 840 行定义.
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A deep copy. All the instance variables will also be copied.
在文件 SGObject.cpp 第 198 行定义.
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delete optimization
被 CCombinedKernel, CWeightedDegreeStringKernel, CWeightedDegreePositionStringKernel, CCommWordStringKernel, CCommUlongStringKernel, CLinearKernel , 以及 CLinearStringKernel 重载.
在文件 Kernel.cpp 第 834 行定义.
Recursively compares the current SGObject to another one. Compares all registered numerical parameters, recursion upon complex (SGObject) parameters. Does not compare pointers!
May be overwritten but please do with care! Should not be necessary in most cases.
| other | object to compare with |
| accuracy | accuracy to use for comparison (optional) |
| tolerant | allows linient check on float equality (within accuracy) |
在文件 SGObject.cpp 第 618 行定义.
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return feature class the kernel can deal with
实现了 CKernel.
在文件 StringKernel.h 第 71 行定义.
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staticprotectedinherited |
helper for computing the kernel matrix in a parallel way
| p | thread parameters |
在文件 Kernel.cpp 第 1292 行定义.
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get kernel row
| docnum | docnum |
| active2dnum | active2dnum |
| buffer | buffer |
| full_line | full line |
在文件 Kernel.cpp 第 238 行定义.
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在文件 SGObject.cpp 第 498 行定义.
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Returns description of a given parameter string, if it exists. SG_ERROR otherwise
| param_name | name of the parameter |
在文件 SGObject.cpp 第 522 行定义.
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Returns index of model selection parameter with provided index
| param_name | name of model selection parameter |
在文件 SGObject.cpp 第 535 行定义.
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virtualinherited |
get number of subkernels
被 CWeightedDegreeStringKernel, CWeightedDegreePositionStringKernel, CCombinedKernel , 以及 CProductKernel 重载.
在文件 Kernel.cpp 第 863 行定义.
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return derivative with respect to specified parameter
| param | the parameter |
| index | the index of the element if parameter is a vector |
被 CCombinedKernel, CProductKernel, CGaussianKernel , 以及 CPeriodicKernel 重载.
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inherited |
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virtualinherited |
get subkernel weights
| num_weights | number of weights will be stored here |
被 CCombinedKernel, CWeightedDegreeStringKernel , 以及 CWeightedDegreePositionStringKernel 重载.
在文件 Kernel.cpp 第 874 行定义.
get subkernel weights (swig compatible)
被 CCombinedKernel 重载.
在文件 Kernel.cpp 第 880 行定义.
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test whether features have been assigned to lhs and rhs
被 CCustomKernel, CCombinedKernel , 以及 CProductKernel 重载.
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initialize kernel
| l | features of left-hand side |
| r | features of right-hand side |
在文件 FixedDegreeStringKernel.cpp 第 52 行定义.
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virtualinherited |
initialize optimization
| count | count |
| IDX | index |
| weights | weights |
被 CCombinedKernel, CWeightedDegreeStringKernel, CWeightedDegreePositionStringKernel, CCommWordStringKernel, CCommUlongStringKernel, CLinearKernel , 以及 CLinearStringKernel 重载.
在文件 Kernel.cpp 第 827 行定义.
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If the SGSerializable is a class template then TRUE will be returned and GENERIC is set to the type of the generic.
| generic | set to the type of the generic if returning TRUE |
在文件 SGObject.cpp 第 296 行定义.
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cleanup kernel cache
在文件 Kernel.cpp 第 567 行定义.
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initialize kernel cache
| size | size to initialize to |
| regression_hack | if hack for regression shall be applied |
在文件 Kernel.cpp 第 181 行定义.
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kernel cache reset lru
在文件 Kernel.cpp 第 554 行定义.
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list kernel
在文件 Kernel.cpp 第 708 行定义.
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Load this object from file. If it will fail (returning FALSE) then this object will contain inconsistent data and should not be used!
| file | where to load from |
| prefix | prefix for members |
在文件 SGObject.cpp 第 369 行定义.
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Can (optionally) be overridden to post-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::LOAD_SERIALIZABLE_POST is called.
| ShogunException | Will be thrown if an error occurres. |
重载 CSGObject .
被 CWeightedDegreePositionStringKernel, CGaussianKernel, CInverseMultiQuadricKernel, CCircularKernel , 以及 CExponentialKernel 重载.
在文件 Kernel.cpp 第 928 行定义.
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Can (optionally) be overridden to pre-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::LOAD_SERIALIZABLE_PRE is called.
| ShogunException | will be thrown if an error occurs. |
被 CDynamicArray< T >, CDynamicArray< float64_t >, CDynamicArray< float32_t >, CDynamicArray< int32_t >, CDynamicArray< char >, CDynamicArray< bool > , 以及 CDynamicObjectArray 重载.
在文件 SGObject.cpp 第 421 行定义.
Obtains a kernel from a generic SGObject with error checking. Note that if passing NULL, result will be NULL
| kernel | Object to cast to CKernel, is not SG_REFed |
在文件 Kernel.cpp 第 896 行定义.
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在文件 SGObject.cpp 第 262 行定义.
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prints all parameter registered for model selection and their type
在文件 SGObject.cpp 第 474 行定义.
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protectedvirtualinherited |
Separate the function of parameter registration This can be the first stage of a general framework for cross-validation or other parameter-based operations
被 CSpectrumMismatchRBFKernel, CSNPStringKernel, CANOVAKernel, CSubsequenceStringKernel, CGaussianMatchStringKernel, CGaussianShortRealKernel, CTensorProductPairKernel, CDistanceKernel , 以及 CHistogramIntersectionKernel 重载.
在文件 Kernel.cpp 第 951 行定义.
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virtualinherited |
remove lhs from kernel
被 CWeightedDegreeStringKernel, CWeightedDegreePositionStringKernel, CCombinedKernel, CCommUlongStringKernel , 以及 CProductKernel 重载.
在文件 Kernel.cpp 第 679 行定义.
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takes all necessary steps if the rhs is removed from kernel
remove rhs from kernel
被 CCombinedKernel, CCommUlongStringKernel , 以及 CProductKernel 重载.
在文件 Kernel.cpp 第 693 行定义.
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Computes row-wise/col-wise sum of kernel values. This method is useful while computing statistical estimation of mean/variance over kernel values but the kernel matrix is too huge to be fit inside memory.
| block_begin_row | the row index at which the block starts |
| block_begin_col | the col index at which the block starts |
| block_size_row | the number of rows in the block |
| block_size_col | the number of cols in the block |
For Example, block_begin_row 0, block_begin_col 4 and block_size_row 5, block_size_col 6 represents the block that starts at index (0,4) in the kernel matrix and goes upto (0+5-1,4+6-1) i.e. (4,9) both inclusive
| no_diag | if true (default is false), the diagonal elements are excluded from the row/col-wise sum, provided that block_size_row and block_size_col are same (i.e. the block is square). Otherwise, these are always added |
\[ v[i]=\sum_{j}k(i+\text{block-begin-row}, j+\text{block-begin-col}) \]
and rest block_size_col entries col-wise sum of kernel values computed as\[ v[\text{block-size-row}+j]=\sum_{i}k(i+\text{block-begin-row}, j+\text{block-begin-col}) \]
where \(i\in[0,\text{block-size-row}-1]\) and \(j\in[0,\text{block-size-col}-1]\)在文件 Kernel.cpp 第 1238 行定义.
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Computes row-wise/col-wise sum and squared sum of kernel values from a symmetric part of the kernel matrix that always is supposed to contain the main upper diagonal. This method is useful while computing statistical estimation of mean/variance over kernel values but the kernel matrix is too huge to be fit inside memory.
| block_begin | the row and col index at which the block starts |
| block_size | the number of rows and cols in the block |
For Example, block_begin 4 and block_size 5 represents the block that starts at index (4,4) in the kernel matrix and goes upto (4+5-1,4+5-1) i.e. (8,8) both inclusive
| no_diag | if true (default), the diagonal elements are excluded from the row/col-wise sum |
\[ v_0[i]=\sum_{j}k(i+\text{block-begin}, j+\text{block-begin}) \]
and second column contains the row-wise sum of squared kernel values\[ v_1[i]=\sum_{j}^k^2(i+\text{block-begin}, j+\text{block-begin}) \]
where \(i,j\in[0,\text{block-size}-1]\)在文件 Kernel.cpp 第 1179 行定义.
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virtualinherited |
Computes row-wise/col-wise sum from a symmetric part of the kernel matrix that always is supposed to contain the main upper diagonal. This method is useful while computing statistical estimation of mean/variance over kernel values but the kernel matrix is too huge to be fit inside memory.
| block_begin | the row and col index at which the block starts |
| block_size | the number of rows and cols in the block |
For Example, block_begin 4 and block_size 5 represents the block that starts at index (4,4) in the kernel matrix and goes upto (4+5-1,4+5-1) i.e. (8,8) both inclusive
| no_diag | if true (default), the diagonal elements are excluded from the row/col-wise sum |
\[ v[i]=\sum_{j}k(i+\text{block-begin}, j+\text{block-begin}) \]
where \(i,j\in[0,\text{block-size}-1]\)在文件 Kernel.cpp 第 1125 行定义.
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Save this object to file.
| file | where to save the object; will be closed during returning if PREFIX is an empty string. |
| prefix | prefix for members |
在文件 SGObject.cpp 第 314 行定义.
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Can (optionally) be overridden to post-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::SAVE_SERIALIZABLE_POST is called.
| ShogunException | Will be thrown if an error occurres. |
重载 CSGObject .
在文件 Kernel.cpp 第 943 行定义.
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protectedvirtualinherited | |||||||||||||
Can (optionally) be overridden to pre-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::SAVE_SERIALIZABLE_PRE is called.
| ShogunException | Will be thrown if an error occurres. |
重载 CSGObject .
在文件 Kernel.cpp 第 935 行定义.
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在文件 SGObject.cpp 第 41 行定义.
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在文件 SGObject.cpp 第 46 行定义.
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在文件 SGObject.cpp 第 51 行定义.
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在文件 SGObject.cpp 第 56 行定义.
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在文件 SGObject.cpp 第 61 行定义.
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在文件 SGObject.cpp 第 66 行定义.
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在文件 SGObject.cpp 第 71 行定义.
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在文件 SGObject.cpp 第 76 行定义.
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在文件 SGObject.cpp 第 81 行定义.
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在文件 SGObject.cpp 第 86 行定义.
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在文件 SGObject.cpp 第 91 行定义.
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在文件 SGObject.cpp 第 96 行定义.
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在文件 SGObject.cpp 第 101 行定义.
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在文件 SGObject.cpp 第 106 行定义.
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在文件 SGObject.cpp 第 111 行定义.
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set generic type to T
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set the current kernel normalizer
被 CWeightedDegreeStringKernel 重载.
在文件 Kernel.cpp 第 150 行定义.
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set subkernel weights
| weights | new subkernel weights |
被 CCombinedKernel, CWeightedDegreeStringKernel , 以及 CWeightedDegreePositionStringKernel 重载.
在文件 Kernel.cpp 第 887 行定义.
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A shallow copy. All the SGObject instance variables will be simply assigned and SG_REF-ed.
被 CGaussianKernel 重载.
在文件 SGObject.cpp 第 192 行定义.
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Computes sum of kernel values from a specified block. This method is useful while computing statistical estimation of mean/variance over kernel values but the kernel matrix is too huge to be fit inside memory.
| block_begin_row | the row index at which the block starts |
| block_begin_col | the col index at which the block starts |
| block_size_row | the number of rows in the block |
| block_size_col | the number of cols in the block |
For example, block_begin_row 0, block_begin_col 4 and block_size_row 5, block_size_col 6 represents the block that starts at index (0,4) in the kernel matrix and goes upto (0+5-1,4+6-1) i.e. (4,9) both inclusive
| no_diag | if true (default is false), the diagonal elements are excluded from the sum, provided that block_size_row and block_size_col are same (i.e. the block is square). Otherwise, these are always added |
\[ \sum_{i}\sum_{j}k(i+\text{block-begin-row}, j+\text{block-begin-col}) \]
where \(i\in[0,\text{block-size-row}-1]\) and \(j\in[0,\text{block-size-col}-1]\)在文件 Kernel.cpp 第 1079 行定义.
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Computes sum from a symmetric part of the kernel matrix that always is supposed to contain the main upper diagonal. This method is useful while computing statistical estimation of mean/variance over kernel values but the kernel matrix is too huge to be fit inside memory.
| block_begin | the row and col index at which the block starts |
| block_size | the number of rows and cols in the block |
For example, block_begin 4 and block_size 5 represents the block that starts at index (4,4) in the kernel matrix and goes upto (4+5-1,4+5-1) i.e. (8,8) both inclusive
| no_diag | if true (default), the diagonal elements are excluded from the sum |
\[ \sum_{i}\sum_{j}k(i+\text{block-begin}, j+\text{block-begin}) \]
where \(i,j\in[0,\text{block-size}-1]\)在文件 Kernel.cpp 第 1026 行定义.
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unset generic type
this has to be called in classes specializing a template class
在文件 SGObject.cpp 第 303 行定义.
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Updates the hash of current parameter combination
在文件 SGObject.cpp 第 248 行定义.
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the degree
在文件 FixedDegreeStringKernel.h 第 97 行定义.
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io
在文件 SGObject.h 第 369 行定义.
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parameters wrt which we can compute gradients
在文件 SGObject.h 第 384 行定义.
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Hash of parameter values
在文件 SGObject.h 第 387 行定义.
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model selection parameters
在文件 SGObject.h 第 381 行定义.
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parameters
在文件 SGObject.h 第 378 行定义.
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parallel
在文件 SGObject.h 第 372 行定义.
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version
在文件 SGObject.h 第 375 行定义.
