详细描述
The Kernel distance takes a distance as input.
It turns a kernel into something distance like by computing
![\[ d({\bf x}, {\bf x'}) = e^{-\frac{k({\bf x}, {\bf x'})}{width}} \]](form_56.png)
在文件KernelDistance.h第33行定义。
继承图，类CKernelDistance
公有成员 | |
| CKernelDistance (void) | |
| CKernelDistance (float64_t width, CKernel *k) | |
| CKernelDistance (CFeatures *l, CFeatures *r, float64_t width, CKernel *k) | |
| virtual | ~CKernelDistance () |
| virtual bool | init (CFeatures *l, CFeatures *r) |
| virtual EDistanceType | get_distance_type () |
| virtual EFeatureType | get_feature_type () |
| virtual EFeatureClass | get_feature_class () |
| virtual const char * | get_name () const |
| virtual void | cleanup () |
保护成员 | |
| float64_t | compute (int32_t idx_a, int32_t idx_b) |
构造及析构函数文档
| CKernelDistance | ( | void | ) |
default constructor
在文件KernelDistance.cpp第20行定义。
| CKernelDistance | ( | float64_t | width, |
| CKernel * | k | ||
| ) |
| CKernelDistance | ( | CFeatures * | l, |
| CFeatures * | r, | ||
| float64_t | width, | ||
| CKernel * | k | ||
| ) |
constructor
- 参数:
-
l features of left-hand side r features of right-hand side width width dist distance
在文件KernelDistance.cpp第36行定义。
| ~CKernelDistance | ( | ) | [virtual] |
在文件KernelDistance.cpp第50行定义。
成员函数文档
| virtual void cleanup | ( | ) | [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
- 参数:
-
idx_a index a idx_b index b
- 返回:
- computed kernel function at indices a,b
实现了CDistance。
在文件KernelDistance.cpp第65行定义。
| virtual EDistanceType get_distance_type | ( | ) | [virtual] |
return what type of kernel we are
- 返回:
- distance type DISTANCE
实现了CDistance。
在文件KernelDistance.h第71行定义。
| virtual EFeatureClass get_feature_class | ( | ) | [virtual] |
return feature class the distance can deal with
- 返回:
- feature class of distance used
实现了CDistance。
在文件KernelDistance.h第82行定义。
| virtual EFeatureType get_feature_type | ( | ) | [virtual] |
return feature type the distance can deal with
- 返回:
- feature type of distance used
实现了CDistance。
在文件KernelDistance.h第76行定义。
| virtual const char* get_name | ( | void | ) | const [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CDistance。
在文件KernelDistance.cpp第58行定义。
该类的文档由以下文件生成：