Detailed Description

the class WaveletKernel

It is defined as

$k({\bf x},({\bf x'})= \prod_{i=0}^{l}h(\frac{(x-c)}{a})\cdot h(\frac{(x'-c)}{a})$

Where $h(x)$ is the mother wavelet function

$h({\bf x}=cos(1.75*x)\cdot exp(\frac{(-x^2)}{2})$

Definition at line 35 of file WaveletKernel.h.

Inheritance diagram for CWaveletKernel:

[legend]

List of all members.

Public Member Functions
	CWaveletKernel ()
	CWaveletKernel (int32_t size, float64_t Wdilation, float64_t Wtranslation)
	CWaveletKernel (CDotFeatures l, CDotFeatures r, int32_t size, float64_t Wdilation, float64_t Wtranslation)
virtual	~CWaveletKernel ()
virtual bool	init (CFeatures l, CFeatures r)
virtual void	cleanup ()
virtual EKernelType	get_kernel_type ()
virtual const char *	get_name () const
Protected Member Functions
virtual float64_t	compute (int32_t idx_a, int32_t idx_b)
float64_t	MotherWavelet (float64_t h)
Protected Attributes
float64_t	Wdilation
float64_t	Wtranslation

Constructor & Destructor Documentation

CWaveletKernel ( )

default constructor

Definition at line 17 of file WaveletKernel.cpp.

CWaveletKernel	(	int32_t	size,
		float64_t	Wdilation,
		float64_t	Wtranslation
	)

constructor

Parameters:

	size	cache size
	Wdilation	is Dilation coefficient
	Wtranslation	is Translation coefficient

Definition at line 22 of file WaveletKernel.cpp.

CWaveletKernel	(	CDotFeatures *	l,
		CDotFeatures *	r,
		int32_t	size,
		float64_t	Wdilation,
		float64_t	Wtranslation
	)

constructor

Parameters:

	l	features of left-hand side
	r	features of right-hand side
	size	cache size
	Wdilation	is Dilation coefficient
	Wtranslation	is Translation coefficient

Definition at line 28 of file WaveletKernel.cpp.

~CWaveletKernel ( ) [virtual]

Definition at line 36 of file WaveletKernel.cpp.

Member Function Documentation

void cleanup ( ) [virtual]

clean up your kernel

base method only removes lhs and rhs overload to add further cleanup but make sure CKernel::cleanup() is called

Reimplemented from CKernel.

Definition at line 41 of file WaveletKernel.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 CDotKernel.

Definition at line 57 of file WaveletKernel.cpp.

virtual EKernelType get_kernel_type ( ) [virtual]

return what type of kernel we are

Returns:: kernel type wavelet

Implements CDotKernel.

Definition at line 75 of file WaveletKernel.h.

virtual const char* get_name ( ) const [virtual]

return the kernel's name

Returns:: name Wavelet

Reimplemented from CDotKernel.

Definition at line 81 of file WaveletKernel.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 CDotKernel.

Definition at line 45 of file WaveletKernel.cpp.

float64_t MotherWavelet ( float64_t h ) [protected]

h(x) is a mother wavelet function

Definition at line 96 of file WaveletKernel.h.

Member Data Documentation

float64_t Wdilation [protected]

dilation coefficient

Definition at line 106 of file WaveletKernel.h.

float64_t Wtranslation [protected]

translation coefficient

Definition at line 108 of file WaveletKernel.h.

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

CWaveletKernel Class Reference

Detailed Description

Public Member Functions

Protected Member Functions

Protected Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation