Kernel Class Reference

Inheritance diagram for Kernel:

Collaboration diagram for Kernel:

List of all members.

Public Member Functions
	Kernel (int l, svm_node *const *x, const svm_parameter &param)
virtual	~Kernel ()
virtual Qfloat *	get_Q (int column, int len) const =0
virtual double *	get_QD () const =0
virtual void	swap_index (int i, int j) const
Static Public Member Functions
static double	k_function (const svm_node *x, const svm_node *y, const svm_parameter &param)
Protected Attributes
double(Kernel::*	kernel_function )(int i, int j) const
Private Member Functions
double	kernel_linear (int i, int j) const
double	kernel_poly (int i, int j) const
double	kernel_rbf (int i, int j) const
double	kernel_sigmoid (int i, int j) const
double	kernel_precomputed (int i, int j) const
Static Private Member Functions
static double	dot (const svm_node *px, const svm_node *py)
Private Attributes
const svm_node **	x
double *	x_square
const int	kernel_type
const int	degree
const double	gamma
const double	coef0

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Detailed Description

Definition at line 202 of file libsvm.cpp.

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Constructor & Destructor Documentation

Kernel::Kernel	(	int	l,
		svm_node *const *	x,
		const svm_parameter &	param
	)

Definition at line 253 of file libsvm.cpp.

References clone(), dot(), kernel_function, kernel_linear(), kernel_poly(), kernel_precomputed(), kernel_rbf(), kernel_sigmoid(), kernel_type, LINEAR, POLY, PRECOMPUTED, RBF, SIGMOID, x, and x_square.

Kernel::~Kernel

(

)

[virtual]

Definition at line 288 of file libsvm.cpp.

References x, and x_square.

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Member Function Documentation

double Kernel::dot	(	const svm_node *	px,
		const svm_node *	py
	)		[static, private]

Definition at line 294 of file libsvm.cpp.

References svm_node::index, and svm_node::value.

Referenced by k_function(), Kernel(), kernel_linear(), kernel_poly(), kernel_rbf(), and kernel_sigmoid().

virtual Qfloat* Kernel::get_Q	(	int	column,
		int	len
	)		const [pure virtual]

Implements QMatrix.

Implemented in SVC_Q, ONE_CLASS_Q, and SVR_Q.

virtual double* Kernel::get_QD

(

)

const [pure virtual]

Implements QMatrix.

Implemented in SVC_Q, ONE_CLASS_Q, and SVR_Q.

double Kernel::k_function	(	const svm_node *	x,
		const svm_node *	y,
		const svm_parameter &	param
	)		[static]

Definition at line 316 of file libsvm.cpp.

References svm_parameter::coef0, svm_parameter::degree, dot(), svm_parameter::gamma, svm_node::index, svm_parameter::kernel_type, LINEAR, POLY, powi(), PRECOMPUTED, RBF, SIGMOID, svm_node::value, and x.

Referenced by svm_predict_values().

double Kernel::kernel_linear	(	int	i,
		int	j
	)		const [inline, private]

Definition at line 231 of file libsvm.cpp.

References dot().

Referenced by Kernel().

double Kernel::kernel_poly	(	int	i,
		int	j
	)		const [inline, private]

Definition at line 235 of file libsvm.cpp.

References coef0, degree, dot(), gamma, and powi().

Referenced by Kernel().

double Kernel::kernel_precomputed	(	int	i,
		int	j
	)		const [inline, private]

Definition at line 247 of file libsvm.cpp.

References svm_node::value.

Referenced by Kernel().

double Kernel::kernel_rbf	(	int	i,
		int	j
	)		const [inline, private]

Definition at line 239 of file libsvm.cpp.

References dot(), gamma, and x_square.

Referenced by Kernel().

double Kernel::kernel_sigmoid	(	int	i,
		int	j
	)		const [inline, private]

Definition at line 243 of file libsvm.cpp.

References coef0, dot(), and gamma.

Referenced by Kernel().

virtual void Kernel::swap_index	(	int	i,
		int	j
	)		const [inline, virtual]

Implements QMatrix.

Reimplemented in SVC_Q, ONE_CLASS_Q, and SVR_Q.

Definition at line 211 of file libsvm.cpp.

References swap(), and x_square.

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Member Data Documentation

const double Kernel::coef0 [private]

Definition at line 228 of file libsvm.cpp.

Referenced by kernel_poly(), and kernel_sigmoid().

const int Kernel::degree [private]

Definition at line 226 of file libsvm.cpp.

Referenced by kernel_poly().

const double Kernel::gamma [private]

Definition at line 227 of file libsvm.cpp.

Referenced by kernel_poly(), kernel_rbf(), and kernel_sigmoid().

double(Kernel::* Kernel::kernel_function)(int i, int j) const [protected]

Definition at line 218 of file libsvm.cpp.

Referenced by SVR_Q::get_Q(), ONE_CLASS_Q::get_Q(), SVC_Q::get_Q(), Kernel(), ONE_CLASS_Q::ONE_CLASS_Q(), SVC_Q::SVC_Q(), and SVR_Q::SVR_Q().

const int Kernel::kernel_type [private]

Definition at line 225 of file libsvm.cpp.

Referenced by Kernel().

const svm_node** Kernel::x [private]

Definition at line 221 of file libsvm.cpp.

Referenced by k_function(), Kernel(), and ~Kernel().

double* Kernel::x_square [private]

Definition at line 222 of file libsvm.cpp.

Referenced by Kernel(), kernel_rbf(), swap_index(), and ~Kernel().

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

• LIA_Utils/Svm/src/libsvm.cpp