mltk::Kernel< T > Class Template Reference

Class for the kernel computations. More...

#include <Kernel.hpp>

Public Member Functions
	Kernel (int type=0, double param=0)
	Class constructor. More...
mltk::dMatrix *	getKernelMatrixPointer ()
	getKernelMatrixPointer Returns a reference to the kernel matrix. More...
	Kernel (mltk::dMatrix kernel_matrix)
	Class constructor. More...
void	setType (int type)
	setType Set the kernel type used in the kernel computations. More...
void	setParam (double param)
	setParam Set the kernel parameter used in the kernel computations. More...
int	getType ()
	getType Returns the kernel type used in the kernel computations. More...
double	getParam ()
	getParam Returns the kernel parameter used in the kernel computations. More...
void	setKernelMatrix (mltk::dMatrix K)
	setKernelMatrix Set a pre computed kernel matrix. More...
mltk::dMatrix	getKernelMatrix ()
	getKernelMatrix Get the kernel matrix. More...
void	recompute ()
void	compute (std::shared_ptr< Data< T > > samples, typename FunctionType< T >::Type f=nullptr)
	compute Compute the kernel matrix with the given type and parameter. More...
mltk::dMatrix *	generateMatrixH (std::shared_ptr< Data< T > > samples)
	compute Compute the H matrix with the computed kernel matrix and given samples. More...
mltk::dMatrix *	generateMatrixHwithoutDim (std::shared_ptr< Data< T > > samples, int dim)
	compute Compute the H matrix without a dimension, with the computed kernel matrix and given samples. More...
double	function (std::shared_ptr< Point< T > > one, std::shared_ptr< Point< T > > two, int dim, typename FunctionType< T >::Type f=nullptr) const
	function Compute the kernel function between two points. More...
double	functionWithoutDim (std::shared_ptr< Point< T > > one, std::shared_ptr< Point< T > > two, int j, int dim)
	function Compute the kernel function between two points without a dimension. More...
double	norm (Data< T > data)
	norm Computes norm in dual variables. More...
double	featureSpaceNorm (std::shared_ptr< Data< T > > data)
	featureSpaceNorm Computes the norm in the feature space (Dual). More...
size_t	size () const
double	operator() (const Point< T > &a, const Point< T > &b) const
void	operator() (const Data< T > &samples, typename FunctionType< T >::Type f=nullptr)
std::vector< double >	operator[] (const size_t &idx) const

Detailed Description

template<typename T = double>
class mltk::Kernel< T >

Class for the kernel computations.

Constructor & Destructor Documentation

Kernel() [1/2]

template<typename T >

mltk::Kernel< T >::Kernel	(	int	type = 0,
		double	param = 0
	)

Class constructor.

Kernel() [2/2]

template<typename T >

mltk::Kernel< T >::Kernel

(

mltk::dMatrix

kernel_matrix

)

Class constructor.

Parameters

K	Kernel matrix to be set in initialization.

Member Function Documentation

compute()

template<typename T >

void mltk::Kernel< T >::compute	(	std::shared_ptr< Data< T > >	samples,
		typename FunctionType< T >::Type	f = nullptr
	)

compute Compute the kernel matrix with the given type and parameter.

Parameters

samples

Data used to compute the kernel matrix.

featureSpaceNorm()

template<typename T >

double mltk::Kernel< T >::featureSpaceNorm

(

std::shared_ptr< Data< T > >

data

)

featureSpaceNorm Computes the norm in the feature space (Dual).

Parameters

data	Dataset to compute norm.

Returns

double

function()

template<typename T >

double mltk::Kernel< T >::function	(	std::shared_ptr< Point< T > >	one,
		std::shared_ptr< Point< T > >	two,
		int	dim,
		typename FunctionType< T >::Type	f = nullptr
	)		const

function Compute the kernel function between two points.

Parameters

one	first point.
two	second point.
dim	Dimension of the points.

Returns

double

functionWithoutDim()

template<typename T = double>

double mltk::Kernel< T >::functionWithoutDim	(	std::shared_ptr< Point< T > >	one,
		std::shared_ptr< Point< T > >	two,
		int	j,
		int	dim
	)

function Compute the kernel function between two points without a dimension.

Parameters

one	first point.
two	second point.
j	Dimension to be ignored.
dim	Dimension of the points.

Returns

double

generateMatrixH()

template<typename T >

mltk::dMatrix * mltk::Kernel< T >::generateMatrixH

(

std::shared_ptr< Data< T > >

samples

)

compute Compute the H matrix with the computed kernel matrix and given samples.

Parameters

samples

Data used to compute the kernel matrix.

Returns

mltk::dMatrix*

generateMatrixHwithoutDim()

template<typename T = double>

mltk::dMatrix * mltk::Kernel< T >::generateMatrixHwithoutDim	(	std::shared_ptr< Data< T > >	samples,
		int	dim
	)

compute Compute the H matrix without a dimension, with the computed kernel matrix and given samples.

Parameters

samples	Data used to compute the kernel matrix.
dim	dimension to be ignored.

Returns

mltk::dMatrix*

getKernelMatrix()

template<typename T >

mltk::dMatrix mltk::Kernel< T >::getKernelMatrix

getKernelMatrix Get the kernel matrix.

Returns

std::vector<std::vector<double> >

getKernelMatrixPointer()

template<typename T >

mltk::dMatrix * mltk::Kernel< T >::getKernelMatrixPointer

getKernelMatrixPointer Returns a reference to the kernel matrix.

Returns

mltk::dMatrix*

getParam()

template<typename T >

double mltk::Kernel< T >::getParam

getParam Returns the kernel parameter used in the kernel computations.

Returns

double

getType()

template<typename T >

int mltk::Kernel< T >::getType

getType Returns the kernel type used in the kernel computations.

Returns

int.

norm()

template<typename T >

double mltk::Kernel< T >::norm

(

Data< T >

data

)

norm Computes norm in dual variables.

Parameters

data	Dataset to compute norm.

Returns

double

setKernelMatrix()

template<typename T >

void mltk::Kernel< T >::setKernelMatrix

(

mltk::dMatrix

K

)

setKernelMatrix Set a pre computed kernel matrix.

Parameters

K	Kernel matrix to be set.

setParam()

template<typename T >

void mltk::Kernel< T >::setParam

(

double

param

)

setParam Set the kernel parameter used in the kernel computations.

Parameters

param

parameter to be set.

setType()

template<typename T >

void mltk::Kernel< T >::setType

(

int

type

)

setType Set the kernel type used in the kernel computations.

Parameters

type	Kernel type.

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

• Kernel.hpp