CMultiClassSVM Class Reference

Detailed Description

class MultiClassSVM

Definition at line 32 of file MultiClassSVM.h.

Inheritance diagram for CMultiClassSVM:

Public Member Functions
	CMultiClassSVM ()
	CMultiClassSVM (EMultiClassSVM type)
	CMultiClassSVM (EMultiClassSVM type, float64_t C, CKernel *k, CLabels *lab)
virtual	~CMultiClassSVM ()
bool	create_multiclass_svm (int32_t num_classes)
bool	set_svm (int32_t num, CSVM *svm)
CSVM *	get_svm (int32_t num)
int32_t	get_num_svms ()
void	cleanup ()
virtual CLabels *	apply ()
virtual CLabels *	apply (CFeatures *data)
virtual float64_t	apply (int32_t num)
virtual CLabels *	classify_one_vs_rest ()
virtual float64_t	classify_example_one_vs_rest (int32_t num)
CLabels *	classify_one_vs_one ()
float64_t	classify_example_one_vs_one (int32_t num)
bool	load (FILE *svm_file)
bool	save (FILE *svm_file)
EMultiClassSVM	get_multiclass_type ()
Public Member Functions inherited from CSVM
	CSVM (int32_t num_sv=0)
	CSVM (float64_t C, CKernel *k, CLabels *lab)
virtual	~CSVM ()
void	set_defaults (int32_t num_sv=0)
virtual SGVector< float64_t >	get_linear_term ()
virtual void	set_linear_term (SGVector< float64_t > linear_term)
void	set_nu (float64_t nue)
void	set_C (float64_t c_neg, float64_t c_pos)
void	set_epsilon (float64_t eps)
void	set_tube_epsilon (float64_t eps)
float64_t	get_tube_epsilon ()
void	set_qpsize (int32_t qps)
float64_t	get_epsilon ()
float64_t	get_nu ()
float64_t	get_C1 ()
float64_t	get_C2 ()
int32_t	get_qpsize ()
void	set_shrinking_enabled (bool enable)
bool	get_shrinking_enabled ()
float64_t	compute_svm_dual_objective ()
float64_t	compute_svm_primal_objective ()
void	set_objective (float64_t v)
float64_t	get_objective ()
void	set_callback_function (CMKL *m, bool(*cb)(CMKL *mkl, const float64_t *sumw, const float64_t suma))
virtual const char *	get_name () const
Public Member Functions inherited from CKernelMachine
	CKernelMachine ()
virtual	~CKernelMachine ()
void	set_kernel (CKernel *k)
CKernel *	get_kernel ()
void	set_batch_computation_enabled (bool enable)
bool	get_batch_computation_enabled ()
void	set_linadd_enabled (bool enable)
bool	get_linadd_enabled ()
void	set_bias_enabled (bool enable_bias)
bool	get_bias_enabled ()
float64_t	get_bias ()
void	set_bias (float64_t bias)
int32_t	get_support_vector (int32_t idx)
float64_t	get_alpha (int32_t idx)
bool	set_support_vector (int32_t idx, int32_t val)
bool	set_alpha (int32_t idx, float64_t val)
int32_t	get_num_support_vectors ()
void	set_alphas (SGVector< float64_t > alphas)
void	set_support_vectors (SGVector< int32_t > svs)
SGVector< int32_t >	get_support_vectors ()
SGVector< float64_t >	get_alphas ()
bool	create_new_model (int32_t num)
bool	init_kernel_optimization ()
Public Member Functions inherited from CMachine
	CMachine ()
virtual	~CMachine ()
virtual bool	train (CFeatures *data=NULL)
virtual void	set_labels (CLabels *lab)
virtual CLabels *	get_labels ()
virtual float64_t	get_label (int32_t i)
void	set_max_train_time (float64_t t)
float64_t	get_max_train_time ()
virtual EClassifierType	get_classifier_type ()
void	set_solver_type (ESolverType st)
ESolverType	get_solver_type ()
virtual void	set_store_model_features (bool store_model)
Public Member Functions inherited from CSGObject
	CSGObject ()
	CSGObject (const CSGObject &orig)
virtual	~CSGObject ()
virtual bool	is_generic (EPrimitiveType *generic) const
template<class T >
void	set_generic ()
void	unset_generic ()
virtual void	print_serializable (const char *prefix="")
virtual bool	save_serializable (CSerializableFile *file, const char *prefix="")
virtual bool	load_serializable (CSerializableFile *file, const char *prefix="")
void	set_global_io (SGIO *io)
SGIO *	get_global_io ()
void	set_global_parallel (Parallel *parallel)
Parallel *	get_global_parallel ()
void	set_global_version (Version *version)
Version *	get_global_version ()
SGVector< char * >	get_modelsel_names ()
char *	get_modsel_param_descr (const char *param_name)
index_t	get_modsel_param_index (const char *param_name)

Protected Attributes
EMultiClassSVM	multiclass_type
int32_t	m_num_classes
int32_t	m_num_svms
CSVM **	m_svms
Protected Attributes inherited from CSVM
SGVector< float64_t >	m_linear_term
bool	svm_loaded
float64_t	epsilon
float64_t	tube_epsilon
float64_t	nu
float64_t	C1
float64_t	C2
float64_t	objective
int32_t	qpsize
bool	use_shrinking
bool(*	callback )(CMKL *mkl, const float64_t *sumw, const float64_t suma)
CMKL *	mkl
Protected Attributes inherited from CKernelMachine
CKernel *	kernel
bool	use_batch_computation
bool	use_linadd
bool	use_bias
float64_t	m_bias
SGVector< float64_t >	m_alpha
SGVector< int32_t >	m_svs
Protected Attributes inherited from CMachine
float64_t	max_train_time
CLabels *	labels
ESolverType	solver_type
bool	m_store_model_features

Additional Inherited Members
Static Public Member Functions inherited from CKernelMachine
static void *	apply_helper (void *p)
Public Attributes inherited from CSGObject
SGIO *	io
Parallel *	parallel
Version *	version
Parameter *	m_parameters
Parameter *	m_model_selection_parameters
Protected Member Functions inherited from CSVM
virtual float64_t *	get_linear_term_array ()

Constructor & Destructor Documentation

CMultiClassSVM

(

)

default constructor

Definition at line 17 of file MultiClassSVM.cpp.

CMultiClassSVM

(

EMultiClassSVM

type

)

constructor

Parameters

type	type of MultiClassSVM

Definition at line 23 of file MultiClassSVM.cpp.

CMultiClassSVM	(	EMultiClassSVM	type,
		float64_t	C,
		CKernel *	k,
		CLabels *	lab
	)

constructor

Parameters

type	type of MultiClassSVM
C	constant C
k	kernel
lab	labels

Definition at line 29 of file MultiClassSVM.cpp.

~CMultiClassSVM ( )

virtual

Definition at line 36 of file MultiClassSVM.cpp.

Member Function Documentation

CLabels * apply ( )

virtual

classify all examples

Returns

resulting labels

Reimplemented from CKernelMachine.

Definition at line 97 of file MultiClassSVM.cpp.

virtual CLabels* apply ( CFeatures *  data )

virtual

classify all examples

Returns

resulting labels

Reimplemented from CKernelMachine.

Definition at line 105 of file MultiClassSVM.h.

float64_t apply ( int32_t  num )

virtual

classify one example

Parameters

num	number of example to classify

Returns

resulting classification

Reimplemented from CKernelMachine.

Reimplemented in CScatterSVM.

Definition at line 237 of file MultiClassSVM.cpp.

float64_t classify_example_one_vs_one

(

int32_t

num

)

classify one example one vs one

Parameters

num	number of example of classify

Returns

resulting classification

Definition at line 270 of file MultiClassSVM.cpp.

float64_t classify_example_one_vs_rest ( int32_t  num )

virtual

classify one example one vs rest

Parameters

num	number of example of classify

Returns

resulting classification

Definition at line 249 of file MultiClassSVM.cpp.

CLabels * classify_one_vs_one

(

)

classify one vs one

Returns

resulting labels

Definition at line 109 of file MultiClassSVM.cpp.

CLabels * classify_one_vs_rest ( )

virtual

classify one vs rest

Returns

resulting labels

Reimplemented in CScatterSVM.

Definition at line 181 of file MultiClassSVM.cpp.

void cleanup

(

)

cleanup SVM

Definition at line 51 of file MultiClassSVM.cpp.

bool create_multiclass_svm

(

int32_t

num_classes

)

create multiclass SVM

Parameters

num_classes

number of classes in SVM

Returns

if creation was successful

Definition at line 61 of file MultiClassSVM.cpp.

EMultiClassSVM get_multiclass_type

(

)

get the type of multiclass'ness

Returns

multiclass type 1 vs one etc

Definition at line 157 of file MultiClassSVM.h.

int32_t get_num_svms

(

)

get number of SVMs

Returns

number of SVMs

Definition at line 87 of file MultiClassSVM.h.

CSVM* get_svm

(

int32_t

num

)

get SVM

Parameters

num	which SVM to get

Returns

SVM at number num

Definition at line 75 of file MultiClassSVM.h.

bool load ( FILE *  svm_file )

virtual

load a Multiclass SVM from file

Parameters

svm_file

the file handle

Reimplemented from CSVM.

Definition at line 306 of file MultiClassSVM.cpp.

bool save ( FILE *  svm_file )

virtual

write a Multiclass SVM to a file

Parameters

svm_file

the file handle

Reimplemented from CSVM.

Definition at line 464 of file MultiClassSVM.cpp.

bool set_svm	(	int32_t	num,
		CSVM *	svm
	)

set SVM

Parameters

num	number to set
svm	SVM to set

Returns

if setting was successful

Definition at line 86 of file MultiClassSVM.cpp.

Member Data Documentation

int32_t m_num_classes

protected

number of classes

Definition at line 167 of file MultiClassSVM.h.

int32_t m_num_svms

protected

number of SVMs

Definition at line 169 of file MultiClassSVM.h.

CSVM** m_svms

protected

the SVMs

Definition at line 171 of file MultiClassSVM.h.

EMultiClassSVM multiclass_type

protected

type of MultiClassSVM

Definition at line 164 of file MultiClassSVM.h.

---

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

• MultiClassSVM.h
• MultiClassSVM.cpp