CDistanceKernel Class Reference

---

Detailed Description

The Distance kernel takes a distance as input.

It turns a distance into something kernel like by computing

Definition at line 33 of file DistanceKernel.h.

Inheritance diagram for CDistanceKernel:

List of all members.

Public Member Functions
	CDistanceKernel ()
	CDistanceKernel (int32_t cache, float64_t width, CDistance *dist)
	CDistanceKernel (CFeatures *l, CFeatures *r, float64_t width, CDistance *dist)
virtual	~CDistanceKernel ()
virtual bool	init (CFeatures *l, CFeatures *r)
virtual void	register_params ()
virtual EKernelType	get_kernel_type ()
virtual EFeatureType	get_feature_type ()
virtual EFeatureClass	get_feature_class ()
virtual const char *	get_name () const
virtual void	set_width (float64_t w)
virtual float64_t	get_width () const
Protected Member Functions
float64_t	compute (int32_t idx_a, int32_t idx_b)
Protected Attributes
CDistance *	distance
float64_t	width

---

Constructor & Destructor Documentation

CDistanceKernel

(

)

default constructor

Definition at line 20 of file DistanceKernel.cpp.

CDistanceKernel	(	int32_t	cache,
		float64_t	width,
		CDistance *	dist
	)

constructor

Parameters:

	cache	cache size
	width	width
	dist	distance

Definition at line 26 of file DistanceKernel.cpp.

CDistanceKernel	(	CFeatures *	l,
		CFeatures *	r,
		float64_t	width,
		CDistance *	dist
	)

constructor

Parameters:

	l	features of left-hand side
	r	features of right-hand side
	width	width
	dist	distance

Definition at line 35 of file DistanceKernel.cpp.

~CDistanceKernel

(

)

[virtual]

Definition at line 46 of file DistanceKernel.cpp.

---

Member Function Documentation

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

Parameters:

	idx_a	index a
	idx_b	index b

Returns:

computed kernel function at indices a,b

Implements CKernel.

Reimplemented in CBesselKernel.

Definition at line 62 of file DistanceKernel.cpp.

virtual EFeatureClass get_feature_class

(

)

[virtual]

return feature class the kernel can deal with

Returns:

feature class of distance used

Implements CKernel.

Reimplemented in CBesselKernel.

Definition at line 87 of file DistanceKernel.h.

virtual EFeatureType get_feature_type

(

)

[virtual]

return feature type the kernel can deal with

Returns:

feature type of distance used

Implements CKernel.

Reimplemented in CBesselKernel.

Definition at line 81 of file DistanceKernel.h.

virtual EKernelType get_kernel_type

(

)

[virtual]

return what type of kernel we are

Returns:

kernel type DISTANCE

Implements CKernel.

Reimplemented in CBesselKernel.

Definition at line 76 of file DistanceKernel.h.

virtual const char* get_name

(

)

const [virtual]

return the kernel's name

Returns:

name Distance

Implements CSGObject.

Reimplemented in CBesselKernel.

Definition at line 93 of file DistanceKernel.h.

virtual float64_t get_width

(

)

const [virtual]

return the kernel's width

Returns:

kernel width

Reimplemented in CBesselKernel.

Definition at line 108 of file DistanceKernel.h.

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

initialize kernel

Parameters:

	l	features of left-hand side
	r	features of right-hand side

Returns:

if initializing was successful

Reimplemented from CKernel.

Reimplemented in CBesselKernel.

Definition at line 54 of file DistanceKernel.cpp.

void register_params

(

)

[virtual]

register the parameters (serialization support)

Reimplemented from CKernel.

Definition at line 68 of file DistanceKernel.cpp.

virtual void set_width

(

float64_t

w

)

[virtual]

set the kernel's width

Parameters:

w

kernel width

Reimplemented in CBesselKernel.

Definition at line 99 of file DistanceKernel.h.

---

Member Data Documentation

CDistance* distance [protected]

distance

Definition at line 126 of file DistanceKernel.h.

float64_t width [protected]

width

Definition at line 128 of file DistanceKernel.h.

---

The documentation for this class was generated from the following files:

• DistanceKernel.h
• DistanceKernel.cpp