SHOGUN v0.9.0
|
Computes the standard linear kernel on dense char valued features.
Formally, it computes
Note: Basically the same as LinearByteKernel but on signed chars.
在文件LinearStringKernel.h第29行定义。
公有成员 | |
CLinearStringKernel () | |
CLinearStringKernel (CStringFeatures< char > *l, CStringFeatures< char > *r) | |
virtual | ~CLinearStringKernel () |
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 | 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) |
保护成员 | |
virtual float64_t | compute (int32_t idx_a, int32_t idx_b) |
保护属性 | |
float64_t * | normal |
constructor
在文件LinearStringKernel.cpp第19行定义。
CLinearStringKernel | ( | CStringFeatures< char > * | l, |
CStringFeatures< char > * | r | ||
) |
constructor
l | features of left-hand side |
r | features of right-hand side |
在文件LinearStringKernel.cpp第24行定义。
~CLinearStringKernel | ( | ) | [virtual] |
在文件LinearStringKernel.cpp第31行定义。
void add_to_normal | ( | int32_t | idx, |
float64_t | weight | ||
) | [virtual] |
void cleanup | ( | ) | [virtual] |
void clear_normal | ( | ) | [virtual] |
float64_t compute | ( | int32_t | idx_a, |
int32_t | idx_b | ||
) | [protected, virtual] |
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LinearStringKernel.cpp第66行定义。
float64_t compute_optimized | ( | int32_t | idx | ) | [virtual] |
compute optimized
idx | index to compute |
重载CKernel。
在文件LinearStringKernel.cpp第116行定义。
bool delete_optimization | ( | ) | [virtual] |
virtual EKernelType get_kernel_type | ( | ) | [virtual] |
virtual const char* get_name | ( | void | ) | const [virtual] |
initialize kernel
l | features of left-hand side |
r | features of right-hand side |
在文件LinearStringKernel.cpp第36行定义。
bool init_optimization | ( | int32_t | num_suppvec, |
int32_t * | sv_idx, | ||
float64_t * | alphas | ||
) | [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 |
重载CKernel。
在文件LinearStringKernel.cpp第80行定义。
normal vector (used in case of optimized kernel)
在文件LinearStringKernel.h第118行定义。