CSVRLight Class Reference

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Detailed Description

Definition at line 63 of file SVRLight.h.

Inheritance diagram for CSVRLight:

List of all members.

Public Member Functions
	CSVRLight ()
	CSVRLight (float64_t C, float64_t epsilon, CKernel *k, CLabels *lab)
virtual	~CSVRLight ()
virtual bool	train (CFeatures *data=NULL)
virtual EClassifierType	get_classifier_type ()
void	svr_learn ()
virtual float64_t	compute_objective_function (float64_t *a, float64_t *lin, float64_t *c, float64_t *eps, int32_t *label, int32_t totdoc)
virtual void	update_linear_component (int32_t *docs, int32_t *label, int32_t *active2dnum, float64_t *a, float64_t *a_old, int32_t *working2dnum, int32_t totdoc, float64_t *lin, float64_t *aicache, float64_t *c)
virtual void	update_linear_component_mkl (int32_t *docs, int32_t *label, int32_t *active2dnum, float64_t *a, float64_t *a_old, int32_t *working2dnum, int32_t totdoc, float64_t *lin, float64_t *aicache, float64_t *c)
virtual void	update_linear_component_mkl_linadd (int32_t *docs, int32_t *label, int32_t *active2dnum, float64_t *a, float64_t *a_old, int32_t *working2dnum, int32_t totdoc, float64_t *lin, float64_t *aicache, float64_t *c)
void	call_mkl_callback (float64_t *a, int32_t *label, float64_t *lin, float64_t *c, int32_t totdoc)
virtual void	reactivate_inactive_examples (int32_t *label, float64_t *a, SHRINK_STATE *shrink_state, float64_t *lin, float64_t *c, int32_t totdoc, int32_t iteration, int32_t *inconsistent, int32_t *docs, float64_t *aicache, float64_t *maxdiff)
virtual const char *	get_name () const
Protected Member Functions
int32_t	regression_fix_index (int32_t i)
virtual float64_t	compute_kernel (int32_t i, int32_t j)
Static Protected Member Functions
static void *	update_linear_component_linadd_helper (void *params)
static int32_t	regression_fix_index2 (int32_t i, int32_t num_vectors)
Protected Attributes
int32_t	num_vectors

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Constructor & Destructor Documentation

CSVRLight

(

)

default constructor

Definition at line 57 of file SVRLight.cpp.

CSVRLight	(	float64_t	C,
		float64_t	epsilon,
		CKernel *	k,
		CLabels *	lab
	)

constructor

Parameters:

	C	constant C
	epsilon	epsilon
	k	kernel
	lab	labels

Definition at line 51 of file SVRLight.cpp.

virtual ~CSVRLight

(

)

[virtual]

default destructor

Definition at line 79 of file SVRLight.h.

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Member Function Documentation

void call_mkl_callback	(	float64_t *	a,
		int32_t *	label,
		float64_t *	lin,
		float64_t *	c,
		int32_t	totdoc
	)

Definition at line 587 of file SVRLight.cpp.

virtual float64_t compute_kernel	(	int32_t	i,
		int32_t	j
	)			[protected, virtual]

compute kernel at given index

Parameters:

	i	index i
	j	index j

Returns:

kernel value at i,j

Reimplemented from CSVMLight.

Definition at line 237 of file SVRLight.h.

float64_t compute_objective_function	(	float64_t *	a,
		float64_t *	lin,
		float64_t *	c,
		float64_t *	eps,
		int32_t *	label,
		int32_t	totdoc
	)			[virtual]

compute objective function

Parameters:

	a	a
	lin	lin
	c	c
	eps	eps
	label	label
	totdoc	totdoc

Reimplemented from CSVMLight.

Definition at line 332 of file SVRLight.cpp.

virtual EClassifierType get_classifier_type

(

)

[virtual]

get classifier type

Returns:

classifier type SVRLIGHT

Reimplemented from CSVMLight.

Definition at line 95 of file SVRLight.h.

virtual const char* get_name

(

void

)

const [virtual]

Returns:

object name

Reimplemented from CSVMLight.

Definition at line 194 of file SVRLight.h.

void reactivate_inactive_examples	(	int32_t *	label,
		float64_t *	a,
		SHRINK_STATE *	shrink_state,
		float64_t *	lin,
		float64_t *	c,
		int32_t	totdoc,
		int32_t	iteration,
		int32_t *	inconsistent,
		int32_t *	docs,
		float64_t *	aicache,
		float64_t *	maxdiff
	)			[virtual]

reactivate inactive examples

Parameters:

	label	label
	a	a
	shrink_state	shrink state
	lin	lin
	c	c
	totdoc	totdoc
	iteration	iteration
	inconsistent	inconsistent
	docs	docs
	aicache	ai cache
	maxdiff	maxdiff

Reimplemented from CSVMLight.

Definition at line 642 of file SVRLight.cpp.

int32_t regression_fix_index

(

int32_t

i

)

[protected]

regression fix index

Parameters:

i

i

Returns:

fix index

Definition at line 208 of file SVRLight.h.

static int32_t regression_fix_index2	(	int32_t	i,
		int32_t	num_vectors
	)			[static, protected]

regression fix index2

Parameters:

	i	i
	num_vectors	number of vectors

Returns:

fix index

Definition at line 222 of file SVRLight.h.

void svr_learn

(

)

SVR learn

Definition at line 144 of file SVRLight.cpp.

bool train

(

CFeatures *

data = NULL

)

[virtual]

train regression

Parameters:

data

training data (parameter can be avoided if distance or kernel-based regressors are used and distance/kernels are initialized with train data)

Returns:

whether training was successful

Reimplemented from CSVMLight.

Definition at line 62 of file SVRLight.cpp.

void update_linear_component	(	int32_t *	docs,
		int32_t *	label,
		int32_t *	active2dnum,
		float64_t *	a,
		float64_t *	a_old,
		int32_t *	working2dnum,
		int32_t	totdoc,
		float64_t *	lin,
		float64_t *	aicache,
		float64_t *	c
	)			[virtual]

update linear component

Parameters:

	docs	docs
	label	label
	active2dnum	active2dnum
	a	a
	a_old	a old
	working2dnum	working2dnum
	totdoc	totdoc
	lin	lin
	aicache	ai cache
	c	c

Reimplemented from CSVMLight.

Definition at line 369 of file SVRLight.cpp.

void * update_linear_component_linadd_helper

(

void *

params

)

[static, protected]

thread helper for update linear component linadd

Parameters:

params

Reimplemented from CSVMLight.

Definition at line 356 of file SVRLight.cpp.

void update_linear_component_mkl	(	int32_t *	docs,
		int32_t *	label,
		int32_t *	active2dnum,
		float64_t *	a,
		float64_t *	a_old,
		int32_t *	working2dnum,
		int32_t	totdoc,
		float64_t *	lin,
		float64_t *	aicache,
		float64_t *	c
	)			[virtual]

update linear component MKL

Parameters:

	docs	docs
	label	label
	active2dnum	active2dnum
	a	a
	a_old	a old
	working2dnum	working2dnum
	totdoc	totdoc
	lin	lin
	aicache	ai cache
	c	c

Definition at line 467 of file SVRLight.cpp.

void update_linear_component_mkl_linadd	(	int32_t *	docs,
		int32_t *	label,
		int32_t *	active2dnum,
		float64_t *	a,
		float64_t *	a_old,
		int32_t *	working2dnum,
		int32_t	totdoc,
		float64_t *	lin,
		float64_t *	aicache,
		float64_t *	c
	)			[virtual]

update linear component MKL linadd

Parameters:

	docs	docs
	label	label
	active2dnum	active2dnum
	a	a
	a_old	a old
	working2dnum	working2dnum
	totdoc	totdoc
	lin	lin
	aicache	ai cache
	c	c

Definition at line 540 of file SVRLight.cpp.

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Member Data Documentation

int32_t num_vectors [protected]

number of train elements

Definition at line 245 of file SVRLight.h.

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

• SVRLight.h
• SVRLight.cpp