SHOGUN v0.9.0
|
The standard Sigmoid kernel computed on dense real valued features.
Formally, it is computed as
在文件SigmoidKernel.h第29行定义。
公有成员 | |
CSigmoidKernel () | |
CSigmoidKernel (int32_t size, float64_t gamma, float64_t coef0) | |
CSigmoidKernel (CDotFeatures *l, CDotFeatures *r, int32_t size, float64_t gamma, float64_t coef0) | |
virtual | ~CSigmoidKernel () |
virtual bool | init (CFeatures *l, CFeatures *r) |
virtual void | cleanup () |
virtual EKernelType | get_kernel_type () |
virtual const char * | get_name () const |
保护成员 | |
virtual float64_t | compute (int32_t idx_a, int32_t idx_b) |
保护属性 | |
float64_t | gamma |
float64_t | coef0 |
CSigmoidKernel | ( | ) |
default constructor
在文件SigmoidKernel.cpp第17行定义。
CSigmoidKernel | ( | int32_t | size, |
float64_t | gamma, | ||
float64_t | coef0 | ||
) |
CSigmoidKernel | ( | CDotFeatures * | l, |
CDotFeatures * | r, | ||
int32_t | size, | ||
float64_t | gamma, | ||
float64_t | coef0 | ||
) |
constructor
l | features of left-hand side |
r | features of right-hand side |
size | cache size |
gamma | gamma |
coef0 | coefficient 0 |
在文件SigmoidKernel.cpp第31行定义。
~CSigmoidKernel | ( | ) | [virtual] |
在文件SigmoidKernel.cpp第43行定义。
void cleanup | ( | ) | [virtual] |
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 |
重载CDotKernel。
在文件SigmoidKernel.h第88行定义。
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 |
重载CDotKernel。
在文件SigmoidKernel.cpp第52行定义。
coefficient 0
在文件SigmoidKernel.h第100行定义。
gamma
在文件SigmoidKernel.h第98行定义。