CBesselKernel Class Reference

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Detailed Description

the class Bessel kernel

It is defined as

Where: is the Bessel funcion with order , is the kernel width, and is the kernel degree.

Definition at line 32 of file BesselKernel.h.

Inheritance diagram for CBesselKernel:

List of all members.

Public Member Functions
	CBesselKernel ()
	CBesselKernel (int32_t size, float64_t order, float64_t width, int32_t degree, CDistance *dist)
	CBesselKernel (CFeatures *l, CFeatures *r, float64_t order, float64_t width, int32_t degree, CDistance *dist, int32_t size=10)
virtual	~CBesselKernel ()
virtual bool	init (CFeatures *l, CFeatures *r)
virtual void	cleanup ()
virtual EKernelType	get_kernel_type ()
virtual EFeatureType	get_feature_type ()
virtual EFeatureClass	get_feature_class ()
virtual const char *	get_name () const
virtual void	set_order (float64_t v)
virtual float64_t	get_order () const
virtual void	set_width (float64_t tau)
virtual float64_t	get_width () const
virtual void	set_degree (int32_t n)
virtual int32_t	get_degree () const
Protected Member Functions
float64_t	compute (int32_t idx_a, int32_t idx_b)
Protected Attributes
float64_t	order
int32_t	degree

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Constructor & Destructor Documentation

CBesselKernel

(

)

default constructor

Definition at line 17 of file BesselKernel.cpp.

CBesselKernel	(	int32_t	size,
		float64_t	order,
		float64_t	width,
		int32_t	degree,
		CDistance *	dist
	)

constructor

Parameters:

	size	cache size
	order	the order of the bessel function
	width	the kernel width
	degree	the kernel degree
	dist	distance to be used

Definition at line 22 of file BesselKernel.cpp.

CBesselKernel	(	CFeatures *	l,
		CFeatures *	r,
		float64_t	order,
		float64_t	width,
		int32_t	degree,
		CDistance *	dist,
		int32_t	size = 10
	)

constructor

Parameters:

	l	features of left-hand side
	r	features of right-hand side
	order	of the bessel function
	width	the kernel width
	degree	the degree
	dist	distance to be used
	size	cache size

Definition at line 31 of file BesselKernel.cpp.

~CBesselKernel

(

)

[virtual]

clean up kernel

Definition at line 41 of file BesselKernel.cpp.

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Member Function Documentation

void cleanup

(

)

[virtual]

cleanup

Reimplemented from CKernel.

Definition at line 47 of file BesselKernel.cpp.

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

Reimplemented from CDistanceKernel.

Definition at line 67 of file BesselKernel.cpp.

virtual int32_t get_degree

(

)

const [virtual]

return the kernel's degree

Returns:

kernel degree

Definition at line 163 of file BesselKernel.h.

virtual EFeatureClass get_feature_class

(

)

[virtual]

Returns:

class of features

Reimplemented from CDistanceKernel.

Definition at line 100 of file BesselKernel.h.

virtual EFeatureType get_feature_type

(

)

[virtual]

Returns:

type of features

Reimplemented from CDistanceKernel.

Definition at line 92 of file BesselKernel.h.

virtual EKernelType get_kernel_type

(

)

[virtual]

return what type of kernel we are

Returns:

kernel type Bessel

Reimplemented from CDistanceKernel.

Definition at line 84 of file BesselKernel.h.

virtual const char* get_name

(

void

)

const [virtual]

return the kernel's name

Returns:

name Bessel

Reimplemented from CDistanceKernel.

Definition at line 109 of file BesselKernel.h.

virtual float64_t get_order

(

)

const [virtual]

return the kernel's order

Returns:

kernel order

Definition at line 127 of file BesselKernel.h.

virtual float64_t get_width

(

)

const [virtual]

return the kernel's width

Returns:

kernel width

Reimplemented from CDistanceKernel.

Definition at line 145 of file BesselKernel.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 CDistanceKernel.

Definition at line 51 of file BesselKernel.cpp.

virtual void set_degree

(

int32_t

n

)

[virtual]

set the kernel's degree

Parameters:

n

kernel degree

Definition at line 154 of file BesselKernel.h.

virtual void set_order

(

float64_t

v

)

[virtual]

set the kernel's order

Parameters:

v

kernel order

Definition at line 118 of file BesselKernel.h.

virtual void set_width

(

float64_t

tau

)

[virtual]

set the kernel's width

Parameters:

tau

kernel width

Reimplemented from CDistanceKernel.

Definition at line 136 of file BesselKernel.h.

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Member Data Documentation

int32_t degree [protected]

kernel degree

Definition at line 178 of file BesselKernel.h.

float64_t order [protected]

order of the Bessel function

Definition at line 176 of file BesselKernel.h.

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

• BesselKernel.h
• BesselKernel.cpp