公有成员 | 保护成员 | 保护属性

CGaussianShortRealKernel类参考


详细描述

The well known Gaussian kernel (swiss army knife for SVMs) on dense short-real valued features.

It is computed as

\[ k({\bf x},{\bf x'})= exp(-\frac{||{\bf x}-{\bf x'}||^2}{\tau}) \]

where $\tau$ is the kernel width.

在文件GaussianShortRealKernel.h31行定义。

继承图,类CGaussianShortRealKernel
Inheritance graph
[图例]

所有成员的列表。

公有成员

 CGaussianShortRealKernel (int32_t size, float64_t width)
 CGaussianShortRealKernel (CSimpleFeatures< float32_t > *l, CSimpleFeatures< float32_t > *r, float64_t width, int32_t size=10)
virtual ~CGaussianShortRealKernel ()
virtual bool init (CFeatures *l, CFeatures *r)
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 width

构造及析构函数文档

CGaussianShortRealKernel ( int32_t  size,
float64_t  width 
)

constructor

参数:
size cache size
width width

在文件GaussianShortRealKernel.cpp19行定义。

CGaussianShortRealKernel ( CSimpleFeatures< float32_t > *  l,
CSimpleFeatures< float32_t > *  r,
float64_t  width,
int32_t  size = 10 
)

constructor

参数:
l features of left-hand side
r features of right-hand side
width width
size cache size

在文件GaussianShortRealKernel.cpp24行定义。

~CGaussianShortRealKernel (  )  [virtual]

在文件GaussianShortRealKernel.cpp31行定义。


成员函数文档

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

参数:
idx_a index a
idx_b index b
返回:
computed kernel function at indices a,b

实现了CKernel

在文件GaussianShortRealKernel.cpp41行定义。

virtual EKernelType get_kernel_type (  )  [virtual]

return what type of kernel we are

返回:
kernel type GAUSSIAN

实现了CKernel

在文件GaussianShortRealKernel.h65行定义。

virtual const char* get_name (  )  const [virtual]

return the kernel's name

返回:
name GaussianShortReal

实现了CSGObject

在文件GaussianShortRealKernel.h71行定义。

bool init ( CFeatures l,
CFeatures r 
) [virtual]

initialize kernel

参数:
l features of left-hand side
r features of right-hand side
返回:
if initializing was successful

重载CSimpleKernel< float32_t >

在文件GaussianShortRealKernel.cpp35行定义。


成员数据文档

float64_t width [protected]

width

在文件GaussianShortRealKernel.h86行定义。


该类的文档由以下文件生成:

SHOGUN Machine Learning Toolbox - Documentation