SHOGUN  v2.0.0
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
List of all members | Public Member Functions | Static Public Member Functions | Public Attributes | Protected Member Functions | Static Protected Member Functions | Protected Attributes
CSVMLight Class Reference

Detailed Description

class SVMlight

Definition at line 231 of file SVMLight.h.

Inheritance diagram for CSVMLight:
Inheritance graph
[legend]

Public Member Functions

 CSVMLight ()
 CSVMLight (float64_t C, CKernel *k, CLabels *lab)
virtual ~CSVMLight ()
void init ()
virtual EMachineType get_classifier_type ()
int32_t get_runtime ()
void svm_learn ()
int32_t optimize_to_convergence (int32_t *docs, int32_t *label, int32_t totdoc, SHRINK_STATE *shrink_state, int32_t *inconsistent, float64_t *a, float64_t *lin, float64_t *c, TIMING *timing_profile, float64_t *maxdiff, int32_t heldout, int32_t retrain)
virtual float64_t compute_objective_function (float64_t *a, float64_t *lin, float64_t *c, float64_t *eps, int32_t *label, int32_t totdoc)
void clear_index (int32_t *index)
void add_to_index (int32_t *index, int32_t elem)
int32_t compute_index (int32_t *binfeature, int32_t range, int32_t *index)
void optimize_svm (int32_t *docs, int32_t *label, int32_t *exclude_from_eq_const, float64_t eq_target, int32_t *chosen, int32_t *active2dnum, int32_t totdoc, int32_t *working2dnum, int32_t varnum, float64_t *a, float64_t *lin, float64_t *c, float64_t *aicache, QP *qp, float64_t *epsilon_crit_target)
void compute_matrices_for_optimization (int32_t *docs, int32_t *label, int32_t *exclude_from_eq_const, float64_t eq_target, int32_t *chosen, int32_t *active2dnum, int32_t *key, float64_t *a, float64_t *lin, float64_t *c, int32_t varnum, int32_t totdoc, float64_t *aicache, QP *qp)
void compute_matrices_for_optimization_parallel (int32_t *docs, int32_t *label, int32_t *exclude_from_eq_const, float64_t eq_target, int32_t *chosen, int32_t *active2dnum, int32_t *key, float64_t *a, float64_t *lin, float64_t *c, int32_t varnum, int32_t totdoc, float64_t *aicache, QP *qp)
int32_t calculate_svm_model (int32_t *docs, int32_t *label, float64_t *lin, float64_t *a, float64_t *a_old, float64_t *c, int32_t *working2dnum, int32_t *active2dnum)
int32_t check_optimality (int32_t *label, float64_t *a, float64_t *lin, float64_t *c, int32_t totdoc, float64_t *maxdiff, float64_t epsilon_crit_org, int32_t *misclassified, int32_t *inconsistent, int32_t *active2dnum, int32_t *last_suboptimal_at, int32_t iteration)
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)
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)
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)
void call_mkl_callback (float64_t *a, int32_t *label, float64_t *lin)
int32_t select_next_qp_subproblem_grad (int32_t *label, float64_t *a, float64_t *lin, float64_t *c, int32_t totdoc, int32_t qp_size, int32_t *inconsistent, int32_t *active2dnum, int32_t *working2dnum, float64_t *selcrit, int32_t *select, int32_t cache_only, int32_t *key, int32_t *chosen)
int32_t select_next_qp_subproblem_rand (int32_t *label, float64_t *a, float64_t *lin, float64_t *c, int32_t totdoc, int32_t qp_size, int32_t *inconsistent, int32_t *active2dnum, int32_t *working2dnum, float64_t *selcrit, int32_t *select, int32_t *key, int32_t *chosen, int32_t iteration)
void select_top_n (float64_t *selcrit, int32_t range, int32_t *select, int32_t n)
void init_shrink_state (SHRINK_STATE *shrink_state, int32_t totdoc, int32_t maxhistory)
void shrink_state_cleanup (SHRINK_STATE *shrink_state)
int32_t shrink_problem (SHRINK_STATE *shrink_state, int32_t *active2dnum, int32_t *last_suboptimal_at, int32_t iteration, int32_t totdoc, int32_t minshrink, float64_t *a, int32_t *inconsistent, float64_t *c, float64_t *lin, int *label)
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)
 MACHINE_PROBLEM_TYPE (PT_BINARY)
void set_defaults (int32_t num_sv=0)
virtual SGVector< float64_tget_linear_term ()
virtual void set_linear_term (const SGVector< float64_t > linear_term)
bool load (FILE *svm_file)
bool save (FILE *svm_file)
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))
void set_kernel (CKernel *k)
CKernelget_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_tget_alphas ()
bool create_new_model (int32_t num)
bool init_kernel_optimization ()
virtual CRegressionLabelsapply_regression (CFeatures *data=NULL)
virtual CBinaryLabelsapply_binary (CFeatures *data=NULL)
virtual float64_t apply_one (int32_t num)
virtual bool train_locked (SGVector< index_t > indices)
virtual CBinaryLabelsapply_locked_binary (SGVector< index_t > indices)
virtual CRegressionLabelsapply_locked_regression (SGVector< index_t > indices)
virtual SGVector< float64_tapply_locked_get_output (SGVector< index_t > indices)
virtual void data_lock (CLabels *labs, CFeatures *features=NULL)
virtual void data_unlock ()
virtual bool supports_locking () const
virtual CMachineclone ()
virtual bool train (CFeatures *data=NULL)
virtual CLabelsapply (CFeatures *data=NULL)
virtual CMulticlassLabelsapply_multiclass (CFeatures *data=NULL)
virtual CStructuredLabelsapply_structured (CFeatures *data=NULL)
virtual CLatentLabelsapply_latent (CFeatures *data=NULL)
virtual void set_labels (CLabels *lab)
virtual CLabelsget_labels ()
void set_max_train_time (float64_t t)
float64_t get_max_train_time ()
void set_solver_type (ESolverType st)
ESolverType get_solver_type ()
virtual void set_store_model_features (bool store_model)
virtual CLabelsapply_locked (SGVector< index_t > indices)
virtual CMulticlassLabelsapply_locked_multiclass (SGVector< index_t > indices)
virtual CStructuredLabelsapply_locked_structured (SGVector< index_t > indices)
virtual CLatentLabelsapply_locked_latent (SGVector< index_t > indices)
virtual void post_lock (CLabels *labs, CFeatures *features)
bool is_data_locked () const
virtual EProblemType get_machine_problem_type () const
virtual CSGObjectshallow_copy () const
virtual CSGObjectdeep_copy () const
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="", int32_t param_version=VERSION_PARAMETER)
virtual bool load_serializable (CSerializableFile *file, const char *prefix="", int32_t param_version=VERSION_PARAMETER)
DynArray< TParameter * > * load_file_parameters (const SGParamInfo *param_info, int32_t file_version, CSerializableFile *file, const char *prefix="")
DynArray< TParameter * > * load_all_file_parameters (int32_t file_version, int32_t current_version, CSerializableFile *file, const char *prefix="")
void map_parameters (DynArray< TParameter * > *param_base, int32_t &base_version, DynArray< const SGParamInfo * > *target_param_infos)
void set_global_io (SGIO *io)
SGIOget_global_io ()
void set_global_parallel (Parallel *parallel)
Parallelget_global_parallel ()
void set_global_version (Version *version)
Versionget_global_version ()
SGStringList< char > get_modelsel_names ()
void print_modsel_params ()
char * get_modsel_param_descr (const char *param_name)
index_t get_modsel_param_index (const char *param_name)
void build_parameter_dictionary (CMap< TParameter *, CSGObject * > &dict)

Static Public Member Functions

static void * update_linear_component_mkl_linadd_helper (void *p)
static void * apply_helper (void *p)

Public Attributes

SGIOio
Parallelparallel
Versionversion
Parameterm_parameters
Parameterm_model_selection_parameters
ParameterMapm_parameter_map
uint32_t m_hash

Protected Member Functions

virtual float64_t compute_kernel (int32_t i, int32_t j)
virtual const char * get_name () const
float64_toptimize_qp (QP *qp, float64_t *epsilon_crit, int32_t nx, float64_t *threshold, int32_t &svm_maxqpsize)
virtual bool train_machine (CFeatures *data=NULL)
virtual float64_tget_linear_term_array ()
SGVector< float64_tapply_get_outputs (CFeatures *data)
virtual void store_model_features ()
virtual bool is_label_valid (CLabels *lab) const
virtual bool train_require_labels () const
virtual TParametermigrate (DynArray< TParameter * > *param_base, const SGParamInfo *target)
virtual void one_to_one_migration_prepare (DynArray< TParameter * > *param_base, const SGParamInfo *target, TParameter *&replacement, TParameter *&to_migrate, char *old_name=NULL)
virtual void load_serializable_pre () throw (ShogunException)
virtual void load_serializable_post () throw (ShogunException)
virtual void save_serializable_pre () throw (ShogunException)
virtual void save_serializable_post () throw (ShogunException)
virtual bool update_parameter_hash ()

Static Protected Member Functions

static void * compute_kernel_helper (void *p)
static void * update_linear_component_linadd_helper (void *p)
static void * reactivate_inactive_examples_vanilla_helper (void *p)
static void * reactivate_inactive_examples_linadd_helper (void *p)

Protected Attributes

MODEL * model
LEARN_PARM * learn_parm
int32_t verbosity
float64_t init_margin
int32_t init_iter
int32_t precision_violations
float64_t model_b
float64_t opt_precision
float64_tprimal
float64_tdual
float64_tW
int32_t count
float64_t mymaxdiff
bool use_kernel_cache
bool mkl_converged
SGVector< float64_tm_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)
CMKLmkl
CKernelkernel
CCustomKernelm_custom_kernel
CKernelm_kernel_backup
bool use_batch_computation
bool use_linadd
bool use_bias
float64_t m_bias
SGVector< float64_tm_alpha
SGVector< int32_t > m_svs
float64_t m_max_train_time
CLabelsm_labels
ESolverType m_solver_type
bool m_store_model_features
bool m_data_locked

Constructor & Destructor Documentation

CSVMLight ( )

default constructor

Definition at line 120 of file SVMLight.cpp.

CSVMLight ( float64_t  C,
CKernel k,
CLabels lab 
)

constructor

Parameters
Cconstant C
kkernel
lablabels

Definition at line 127 of file SVMLight.cpp.

~CSVMLight ( )
virtual

Definition at line 158 of file SVMLight.cpp.

Member Function Documentation

void add_to_index ( int32_t *  index,
int32_t  elem 
)

add to index

Parameters
indexindex
elemelement at index

Definition at line 977 of file SVMLight.cpp.

CLabels * apply ( CFeatures data = NULL)
virtualinherited

apply machine to data if data is not specified apply to the current features

Parameters
data(test)data to be classified
Returns
classified labels

Definition at line 162 of file Machine.cpp.

CBinaryLabels * apply_binary ( CFeatures data = NULL)
virtualinherited

apply kernel machine to data for binary classification task

Parameters
data(test)data to be classified
Returns
classified labels

Reimplemented from CMachine.

Reimplemented in CDomainAdaptationSVM.

Definition at line 245 of file KernelMachine.cpp.

SGVector< float64_t > apply_get_outputs ( CFeatures data)
protectedinherited

apply get outputs

Parameters
datafeatures to compute outputs
Returns
outputs

Definition at line 251 of file KernelMachine.cpp.

void * apply_helper ( void *  p)
staticinherited

apply example helper, used in threads

Parameters
pparams of the thread
Returns
nothing really

Definition at line 421 of file KernelMachine.cpp.

CLatentLabels * apply_latent ( CFeatures data = NULL)
virtualinherited

apply machine to data in means of latent problem

Reimplemented in CLinearLatentMachine.

Definition at line 242 of file Machine.cpp.

CLabels * apply_locked ( SGVector< index_t indices)
virtualinherited

Applies a locked machine on a set of indices. Error if machine is not locked

Parameters
indicesindex vector (of locked features) that is predicted

Definition at line 197 of file Machine.cpp.

CBinaryLabels * apply_locked_binary ( SGVector< index_t indices)
virtualinherited

Applies a locked machine on a set of indices. Error if machine is not locked. Binary case

Parameters
indicesindex vector (of locked features) that is predicted
Returns
resulting labels

Reimplemented from CMachine.

Definition at line 515 of file KernelMachine.cpp.

SGVector< float64_t > apply_locked_get_output ( SGVector< index_t indices)
virtualinherited

Applies a locked machine on a set of indices. Error if machine is not locked

Parameters
indicesindex vector (of locked features) that is predicted
Returns
raw output of machine

Definition at line 528 of file KernelMachine.cpp.

CLatentLabels * apply_locked_latent ( SGVector< index_t indices)
virtualinherited

applies a locked machine on a set of indices for latent problems

Definition at line 276 of file Machine.cpp.

CMulticlassLabels * apply_locked_multiclass ( SGVector< index_t indices)
virtualinherited

applies a locked machine on a set of indices for multiclass problems

Definition at line 262 of file Machine.cpp.

CRegressionLabels * apply_locked_regression ( SGVector< index_t indices)
virtualinherited

Applies a locked machine on a set of indices. Error if machine is not locked. Binary case

Parameters
indicesindex vector (of locked features) that is predicted
Returns
resulting labels

Reimplemented from CMachine.

Definition at line 521 of file KernelMachine.cpp.

CStructuredLabels * apply_locked_structured ( SGVector< index_t indices)
virtualinherited

applies a locked machine on a set of indices for structured problems

Definition at line 269 of file Machine.cpp.

CMulticlassLabels * apply_multiclass ( CFeatures data = NULL)
virtualinherited

apply machine to data in means of multiclass classification problem

Reimplemented in CDistanceMachine, CMulticlassMachine, CKNN, CVwConditionalProbabilityTree, CGaussianNaiveBayes, CConjugateIndex, CConditionalProbabilityTree, CQDA, and CRelaxedTree.

Definition at line 230 of file Machine.cpp.

float64_t apply_one ( int32_t  num)
virtualinherited

apply kernel machine to one example

Parameters
numwhich example to apply to
Returns
classified value

Reimplemented from CMachine.

Definition at line 402 of file KernelMachine.cpp.

CRegressionLabels * apply_regression ( CFeatures data = NULL)
virtualinherited

apply kernel machine to data for regression task

Parameters
data(test)data to be classified
Returns
classified labels

Reimplemented from CMachine.

Definition at line 239 of file KernelMachine.cpp.

CStructuredLabels * apply_structured ( CFeatures data = NULL)
virtualinherited

apply machine to data in means of SO classification problem

Reimplemented in CLinearStructuredOutputMachine.

Definition at line 236 of file Machine.cpp.

void build_parameter_dictionary ( CMap< TParameter *, CSGObject * > &  dict)
inherited

Builds a dictionary of all parameters in SGObject as well of those of SGObjects that are parameters of this object. Dictionary maps parameters to the objects that own them.

Parameters
dictdictionary of parameters to be built.

Definition at line 1204 of file SGObject.cpp.

int32_t calculate_svm_model ( int32_t *  docs,
int32_t *  label,
float64_t lin,
float64_t a,
float64_t a_old,
float64_t c,
int32_t *  working2dnum,
int32_t *  active2dnum 
)

calculate SVM model

Parameters
docsdocs
labellabel
linlin
aa
a_oldold a
cc
working2dnumworking 2D num
active2dnumactive 2D num
Returns
something inty

Definition at line 1248 of file SVMLight.cpp.

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

Definition at line 1684 of file SVMLight.cpp.

int32_t check_optimality ( int32_t *  label,
float64_t a,
float64_t lin,
float64_t c,
int32_t  totdoc,
float64_t maxdiff,
float64_t  epsilon_crit_org,
int32_t *  misclassified,
int32_t *  inconsistent,
int32_t *  active2dnum,
int32_t *  last_suboptimal_at,
int32_t  iteration 
)

check optimality

Parameters
labellabel
aa
linlin
cc
totdoctotdoc
maxdiffmaximum diff
epsilon_crit_orgepsilon crit org
misclassifiedmisclassified
inconsistentinconsistent
active2dnumactive 2D num
last_suboptimal_atlast suboptimal at
iterationiteration
Returns
something inty

Definition at line 1365 of file SVMLight.cpp.

void clear_index ( int32_t *  index)

clear index

Parameters
indexindex

Definition at line 971 of file SVMLight.cpp.

virtual CMachine* clone ( )
virtualinherited

clone

Reimplemented from CMachine.

Definition at line 288 of file KernelMachine.h.

int32_t compute_index ( int32_t *  binfeature,
int32_t  range,
int32_t *  index 
)

compute index

Parameters
binfeaturebinary feature
rangerange
index
Returns
something inty

Definition at line 986 of file SVMLight.cpp.

virtual float64_t compute_kernel ( int32_t  i,
int32_t  j 
)
protectedvirtual

compute kernel

Parameters
iat index i
jat index j
Returns
computed kernel item at index i, j

Reimplemented in CSVRLight.

Definition at line 611 of file SVMLight.h.

void * compute_kernel_helper ( void *  p)
staticprotected

helper for compute kernel

Parameters
pp

Definition at line 109 of file SVMLight.cpp.

void compute_matrices_for_optimization ( int32_t *  docs,
int32_t *  label,
int32_t *  exclude_from_eq_const,
float64_t  eq_target,
int32_t *  chosen,
int32_t *  active2dnum,
int32_t *  key,
float64_t a,
float64_t lin,
float64_t c,
int32_t  varnum,
int32_t  totdoc,
float64_t aicache,
QP *  qp 
)

compute matrices for optimization

Parameters
docsdocs
labellabel
exclude_from_eq_constexclude from eq const
eq_targeteq target
chosenchosen
active2dnumactive 2D num
keykey
aa
linlin
cc
varnumvar num
totdoctotdoc
aicacheai cache
qpQP

Definition at line 1175 of file SVMLight.cpp.

void compute_matrices_for_optimization_parallel ( int32_t *  docs,
int32_t *  label,
int32_t *  exclude_from_eq_const,
float64_t  eq_target,
int32_t *  chosen,
int32_t *  active2dnum,
int32_t *  key,
float64_t a,
float64_t lin,
float64_t c,
int32_t  varnum,
int32_t  totdoc,
float64_t aicache,
QP *  qp 
)

compute matrices for optimization in parallel

Parameters
docsdocs
labellabel
exclude_from_eq_constexclude from eq const
eq_targeteq target
chosenchosen
active2dnumactive 2D num
keykey
aa
linlin
cc
varnumvar num
totdoctotdoc
aicacheai cache
qpQP

Definition at line 1043 of file SVMLight.cpp.

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
aa
linlin
cc
epsepsilon
labellabel
totdoctotdoc
Returns
something floaty

Reimplemented in CSVRLight.

Definition at line 955 of file SVMLight.cpp.

float64_t compute_svm_dual_objective ( )
inherited

compute svm dual objective

Returns
computed dual objective

Definition at line 242 of file SVM.cpp.

float64_t compute_svm_primal_objective ( )
inherited

compute svm primal objective

Returns
computed svm primal objective

Definition at line 267 of file SVM.cpp.

bool create_new_model ( int32_t  num)
inherited

create new model

Parameters
numnumber of alphas and support vectors in new model

Definition at line 191 of file KernelMachine.cpp.

void data_lock ( CLabels labs,
CFeatures features = NULL 
)
virtualinherited

Locks the machine on given labels and data. After this call, only train_locked and apply_locked may be called.

Computes kernel matrix to speed up train/apply calls

Parameters
labslabels used for locking
featuresfeatures used for locking

Reimplemented from CMachine.

Definition at line 620 of file KernelMachine.cpp.

void data_unlock ( )
virtualinherited

Unlocks a locked machine and restores previous state

Reimplemented from CMachine.

Definition at line 649 of file KernelMachine.cpp.

virtual CSGObject* deep_copy ( ) const
virtualinherited

A deep copy. All the instance variables will also be copied.

Definition at line 131 of file SGObject.h.

float64_t get_alpha ( int32_t  idx)
inherited

get alpha at given index

Parameters
idxindex of alpha
Returns
alpha

Definition at line 137 of file KernelMachine.cpp.

SGVector< float64_t > get_alphas ( )
inherited
Returns
vector of alphas

Definition at line 186 of file KernelMachine.cpp.

bool get_batch_computation_enabled ( )
inherited

check if batch computation is enabled

Returns
if batch computation is enabled

Definition at line 96 of file KernelMachine.cpp.

float64_t get_bias ( )
inherited

get bias

Returns
bias

Definition at line 121 of file KernelMachine.cpp.

bool get_bias_enabled ( )
inherited

get state of bias

Returns
state of bias

Definition at line 116 of file KernelMachine.cpp.

float64_t get_C1 ( )
inherited

get C1

Returns
C1

Definition at line 159 of file SVM.h.

float64_t get_C2 ( )
inherited

get C2

Returns
C2

Definition at line 165 of file SVM.h.

virtual EMachineType get_classifier_type ( )
virtual

get classifier type

Returns
classifier type LIGHT

Reimplemented from CMachine.

Reimplemented in CSVRLight, CDomainAdaptationSVM, and CSVMLightOneClass.

Definition at line 253 of file SVMLight.h.

float64_t get_epsilon ( )
inherited

get epsilon

Returns
epsilon

Definition at line 147 of file SVM.h.

SGIO * get_global_io ( )
inherited

get the io object

Returns
io object

Definition at line 224 of file SGObject.cpp.

Parallel * get_global_parallel ( )
inherited

get the parallel object

Returns
parallel object

Definition at line 259 of file SGObject.cpp.

Version * get_global_version ( )
inherited

get the version object

Returns
version object

Definition at line 272 of file SGObject.cpp.

CKernel * get_kernel ( )
inherited

get kernel

Returns
kernel

Definition at line 85 of file KernelMachine.cpp.

CLabels * get_labels ( )
virtualinherited

get labels

Returns
labels

Definition at line 86 of file Machine.cpp.

bool get_linadd_enabled ( )
inherited

check if linadd is enabled

Returns
if linadd is enabled

Definition at line 106 of file KernelMachine.cpp.

SGVector< float64_t > get_linear_term ( )
virtualinherited

get linear term

Returns
the linear term

Definition at line 332 of file SVM.cpp.

float64_t * get_linear_term_array ( )
protectedvirtualinherited

get linear term copy as dynamic array

Returns
linear term copied to a dynamic array

Definition at line 302 of file SVM.cpp.

virtual EProblemType get_machine_problem_type ( ) const
virtualinherited

returns type of problem machine solves

Reimplemented in CBaseMulticlassMachine.

Definition at line 287 of file Machine.h.

float64_t get_max_train_time ( )
inherited

get maximum training time

Returns
maximum training time

Definition at line 97 of file Machine.cpp.

SGStringList< char > get_modelsel_names ( )
inherited
Returns
vector of names of all parameters which are registered for model selection

Definition at line 1108 of file SGObject.cpp.

char * get_modsel_param_descr ( const char *  param_name)
inherited

Returns description of a given parameter string, if it exists. SG_ERROR otherwise

Parameters
param_namename of the parameter
Returns
description of the parameter

Definition at line 1132 of file SGObject.cpp.

index_t get_modsel_param_index ( const char *  param_name)
inherited

Returns index of model selection parameter with provided index

Parameters
param_namename of model selection parameter
Returns
index of model selection parameter with provided name, -1 if there is no such

Definition at line 1145 of file SGObject.cpp.

virtual const char* get_name ( ) const
protectedvirtual
Returns
object name

Reimplemented from CSVM.

Reimplemented in CSVRLight, and CDomainAdaptationSVM.

Definition at line 641 of file SVMLight.h.

float64_t get_nu ( )
inherited

get nu

Returns
nu

Definition at line 153 of file SVM.h.

int32_t get_num_support_vectors ( )
inherited

get number of support vectors

Returns
number of support vectors

Definition at line 166 of file KernelMachine.cpp.

float64_t get_objective ( )
inherited

get objective

Returns
objective

Definition at line 216 of file SVM.h.

int32_t get_qpsize ( )
inherited

get qpsize

Returns
qpsize

Definition at line 171 of file SVM.h.

int32_t get_runtime ( )

get runtime

Returns
runtime

Definition at line 288 of file SVMLight.cpp.

bool get_shrinking_enabled ( )
inherited

get state of shrinking

Returns
if shrinking is enabled

Definition at line 186 of file SVM.h.

ESolverType get_solver_type ( )
inherited

get solver type

Returns
solver

Definition at line 112 of file Machine.cpp.

int32_t get_support_vector ( int32_t  idx)
inherited

get support vector at given index

Parameters
idxindex of support vector
Returns
support vector

Definition at line 131 of file KernelMachine.cpp.

SGVector< int32_t > get_support_vectors ( )
inherited
Returns
all support vectors

Definition at line 181 of file KernelMachine.cpp.

float64_t get_tube_epsilon ( )
inherited

get tube epsilon

Returns
tube epsilon

Definition at line 135 of file SVM.h.

void init ( )

init SVM

Reimplemented from CKernelMachine.

Definition at line 133 of file SVMLight.cpp.

bool init_kernel_optimization ( )
inherited

initialise kernel optimisation

Returns
if operation was successful

Definition at line 208 of file KernelMachine.cpp.

void init_shrink_state ( SHRINK_STATE *  shrink_state,
int32_t  totdoc,
int32_t  maxhistory 
)

init shrink state

Parameters
shrink_stateshrink state
totdoctotdoc
maxhistorymaximum history

Definition at line 1943 of file SVMLight.cpp.

bool is_data_locked ( ) const
inherited
Returns
whether this machine is locked

Definition at line 284 of file Machine.h.

bool is_generic ( EPrimitiveType *  generic) const
virtualinherited

If the SGSerializable is a class template then TRUE will be returned and GENERIC is set to the type of the generic.

Parameters
genericset to the type of the generic if returning TRUE
Returns
TRUE if a class template.

Definition at line 278 of file SGObject.cpp.

virtual bool is_label_valid ( CLabels lab) const
protectedvirtualinherited

check whether the labels is valid.

Subclasses can override this to implement their check of label types.

Parameters
labthe labels being checked, guaranteed to be non-NULL

Reimplemented in CBaseMulticlassMachine.

Definition at line 343 of file Machine.h.

bool load ( FILE *  svm_file)
inherited

load a SVM from file

Parameters
svm_filethe file handle

Definition at line 90 of file SVM.cpp.

DynArray< TParameter * > * load_all_file_parameters ( int32_t  file_version,
int32_t  current_version,
CSerializableFile file,
const char *  prefix = "" 
)
inherited

maps all parameters of this instance to the provided file version and loads all parameter data from the file into an array, which is sorted (basically calls load_file_parameter(...) for all parameters and puts all results into a sorted array)

Parameters
file_versionparameter version of the file
current_versionversion from which mapping begins (you want to use VERSION_PARAMETER for this in most cases)
filefile to load from
prefixprefix for members
Returns
(sorted) array of created TParameter instances with file data

Definition at line 679 of file SGObject.cpp.

DynArray< TParameter * > * load_file_parameters ( const SGParamInfo param_info,
int32_t  file_version,
CSerializableFile file,
const char *  prefix = "" 
)
inherited

loads some specified parameters from a file with a specified version The provided parameter info has a version which is recursively mapped until the file parameter version is reached. Note that there may be possibly multiple parameters in the mapping, therefore, a set of TParameter instances is returned

Parameters
param_infoinformation of parameter
file_versionparameter version of the file, must be <= provided parameter version
filefile to load from
prefixprefix for members
Returns
new array with TParameter instances with the attached data

Definition at line 523 of file SGObject.cpp.

bool load_serializable ( CSerializableFile file,
const char *  prefix = "",
int32_t  param_version = VERSION_PARAMETER 
)
virtualinherited

Load this object from file. If it will fail (returning FALSE) then this object will contain inconsistent data and should not be used!

Parameters
filewhere to load from
prefixprefix for members
param_version(optional) a parameter version different to (this is mainly for testing, better do not use)
Returns
TRUE if done, otherwise FALSE

Reimplemented in CModelSelectionParameters.

Definition at line 354 of file SGObject.cpp.

void load_serializable_post ( ) throw (ShogunException)
protectedvirtualinherited

Can (optionally) be overridden to post-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::LOAD_SERIALIZABLE_POST is called.

Exceptions
ShogunExceptionWill be thrown if an error occurres.

Reimplemented in CKernel, CWeightedDegreePositionStringKernel, CList, CAlphabet, CLinearHMM, CGaussianKernel, CANOVAKernel, CInverseMultiQuadricKernel, CCircularKernel, and CExponentialKernel.

Definition at line 1033 of file SGObject.cpp.

void load_serializable_pre ( ) throw (ShogunException)
protectedvirtualinherited

Can (optionally) be overridden to pre-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::LOAD_SERIALIZABLE_PRE is called.

Exceptions
ShogunExceptionWill be thrown if an error occurres.

Definition at line 1028 of file SGObject.cpp.

MACHINE_PROBLEM_TYPE ( PT_BINARY  )
inherited

problem type

void map_parameters ( DynArray< TParameter * > *  param_base,
int32_t &  base_version,
DynArray< const SGParamInfo * > *  target_param_infos 
)
inherited

Takes a set of TParameter instances (base) with a certain version and a set of target parameter infos and recursively maps the base level wise to the current version using CSGObject::migrate(...). The base is replaced. After this call, the base version containing parameters should be of same version/type as the initial target parameter infos. Note for this to work, the migrate methods and all the internal parameter mappings have to match

Parameters
param_baseset of TParameter instances that are mapped to the provided target parameter infos
base_versionversion of the parameter base
target_param_infosset of SGParamInfo instances that specify the target parameter base

Definition at line 717 of file SGObject.cpp.

TParameter * migrate ( DynArray< TParameter * > *  param_base,
const SGParamInfo target 
)
protectedvirtualinherited

creates a new TParameter instance, which contains migrated data from the version that is provided. The provided parameter data base is used for migration, this base is a collection of all parameter data of the previous version. Migration is done FROM the data in param_base TO the provided param info Migration is always one version step. Method has to be implemented in subclasses, if no match is found, base method has to be called.

If there is an element in the param_base which equals the target, a copy of the element is returned. This represents the case when nothing has changed and therefore, the migrate method is not overloaded in a subclass

Parameters
param_baseset of TParameter instances to use for migration
targetparameter info for the resulting TParameter
Returns
a new TParameter instance with migrated data from the base of the type which is specified by the target parameter

Definition at line 923 of file SGObject.cpp.

void one_to_one_migration_prepare ( DynArray< TParameter * > *  param_base,
const SGParamInfo target,
TParameter *&  replacement,
TParameter *&  to_migrate,
char *  old_name = NULL 
)
protectedvirtualinherited

This method prepares everything for a one-to-one parameter migration. One to one here means that only ONE element of the parameter base is needed for the migration (the one with the same name as the target). Data is allocated for the target (in the type as provided in the target SGParamInfo), and a corresponding new TParameter instance is written to replacement. The to_migrate pointer points to the single needed TParameter instance needed for migration. If a name change happened, the old name may be specified by old_name. In addition, the m_delete_data flag of to_migrate is set to true. So if you want to migrate data, the only thing to do after this call is converting the data in the m_parameter fields. If unsure how to use - have a look into an example for this. (base_migration_type_conversion.cpp for example)

Parameters
param_baseset of TParameter instances to use for migration
targetparameter info for the resulting TParameter
replacement(used as output) here the TParameter instance which is returned by migration is created into
to_migratethe only source that is used for migration
old_namewith this parameter, a name change may be specified

Definition at line 864 of file SGObject.cpp.

float64_t * optimize_qp ( QP *  qp,
float64_t epsilon_crit,
int32_t  nx,
float64_t threshold,
int32_t &  svm_maxqpsize 
)
protected

Definition at line 2395 of file SVMLight.cpp.

void optimize_svm ( int32_t *  docs,
int32_t *  label,
int32_t *  exclude_from_eq_const,
float64_t  eq_target,
int32_t *  chosen,
int32_t *  active2dnum,
int32_t  totdoc,
int32_t *  working2dnum,
int32_t  varnum,
float64_t a,
float64_t lin,
float64_t c,
float64_t aicache,
QP *  qp,
float64_t epsilon_crit_target 
)

optimise SVM

Parameters
docsdocs
labellabel
exclude_from_eq_constexclude from eq const
eq_targeteq target
chosenchosen
active2dnumactive 2D num
totdoctotdoc
working2dnumworking 2D num
varnumvar num
aa
linlin
cc
aicacheai cache
qpQP
epsilon_crit_targetepsilon crit target

Definition at line 1006 of file SVMLight.cpp.

int32_t optimize_to_convergence ( int32_t *  docs,
int32_t *  label,
int32_t  totdoc,
SHRINK_STATE *  shrink_state,
int32_t *  inconsistent,
float64_t a,
float64_t lin,
float64_t c,
TIMING *  timing_profile,
float64_t maxdiff,
int32_t  heldout,
int32_t  retrain 
)

optimize to convergence

Parameters
docsthe docs
labelthe label
totdocthe totdoc
shrink_stateshrink state
inconsistentinconsistent
aa
linlin
cc
timing_profiletiming profile
maxdiffmaximum diff
heldoutheld out
retrainretrain
Returns
something inty

Definition at line 543 of file SVMLight.cpp.

virtual void post_lock ( CLabels labs,
CFeatures features 
)
virtualinherited

post lock

Reimplemented in CMultitaskLinearMachine, and CMultitaskCompositeMachine.

Definition at line 275 of file Machine.h.

void print_modsel_params ( )
inherited

prints all parameter registered for model selection and their type

Definition at line 1084 of file SGObject.cpp.

void print_serializable ( const char *  prefix = "")
virtualinherited

prints registered parameters out

Parameters
prefixprefix for members

Definition at line 290 of file SGObject.cpp.

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
labellabel
aa
shrink_stateshrink state
linlin
cc
totdoctotdoc
iterationiteration
inconsistentinconsistent
docsdocs
aicacheai cache
maxdiffmaximum diff

Reimplemented in CSVRLight.

Definition at line 2096 of file SVMLight.cpp.

void * reactivate_inactive_examples_linadd_helper ( void *  p)
staticprotected

helper for reactivate inactive examples linadd

Parameters
pp

Definition at line 2036 of file SVMLight.cpp.

void * reactivate_inactive_examples_vanilla_helper ( void *  p)
staticprotected

helper for reactivate inactive examples vanilla

Parameters
pp

Definition at line 2059 of file SVMLight.cpp.

bool save ( FILE *  svm_file)
inherited

write a SVM to a file

Parameters
svm_filethe file handle

Definition at line 206 of file SVM.cpp.

bool save_serializable ( CSerializableFile file,
const char *  prefix = "",
int32_t  param_version = VERSION_PARAMETER 
)
virtualinherited

Save this object to file.

Parameters
filewhere to save the object; will be closed during returning if PREFIX is an empty string.
prefixprefix for members
param_version(optional) a parameter version different to (this is mainly for testing, better do not use)
Returns
TRUE if done, otherwise FALSE

Reimplemented in CModelSelectionParameters.

Definition at line 296 of file SGObject.cpp.

void save_serializable_post ( ) throw (ShogunException)
protectedvirtualinherited

Can (optionally) be overridden to post-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::SAVE_SERIALIZABLE_POST is called.

Exceptions
ShogunExceptionWill be thrown if an error occurres.

Reimplemented in CKernel.

Definition at line 1043 of file SGObject.cpp.

void save_serializable_pre ( ) throw (ShogunException)
protectedvirtualinherited

Can (optionally) be overridden to pre-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::SAVE_SERIALIZABLE_PRE is called.

Exceptions
ShogunExceptionWill be thrown if an error occurres.

Reimplemented in CKernel.

Definition at line 1038 of file SGObject.cpp.

int32_t select_next_qp_subproblem_grad ( int32_t *  label,
float64_t a,
float64_t lin,
float64_t c,
int32_t  totdoc,
int32_t  qp_size,
int32_t *  inconsistent,
int32_t *  active2dnum,
int32_t *  working2dnum,
float64_t selcrit,
int32_t *  select,
int32_t  cache_only,
int32_t *  key,
int32_t *  chosen 
)

select next qp subproblem grad

Parameters
labellabel
aa
linlin
cc
totdoctotdoc
qp_sizesize of qp
inconsistentinconsistent
active2dnumactive 2D num
working2dnumworking 2D num
selcritselcrit
selectselect
cache_onlycache only
keykey
chosenchosen
Returns
something inty

Definition at line 1745 of file SVMLight.cpp.

int32_t select_next_qp_subproblem_rand ( int32_t *  label,
float64_t a,
float64_t lin,
float64_t c,
int32_t  totdoc,
int32_t  qp_size,
int32_t *  inconsistent,
int32_t *  active2dnum,
int32_t *  working2dnum,
float64_t selcrit,
int32_t *  select,
int32_t *  key,
int32_t *  chosen,
int32_t  iteration 
)

select next qp subproblem rand

Parameters
labellabel
aa
linlin
cc
totdoctotdoc
qp_sizesize of qp
inconsistentinconsistent
active2dnumactive 2D num
working2dnumworking 2D num
selcritselcrit
selectselect
keykey
chosenchosen
iterationiteration
Returns
something inty

Definition at line 1837 of file SVMLight.cpp.

void select_top_n ( float64_t selcrit,
int32_t  range,
int32_t *  select,
int32_t  n 
)

select top n

Parameters
selcritselcrit
rangerange
selectselect
nn

Definition at line 1907 of file SVMLight.cpp.

bool set_alpha ( int32_t  idx,
float64_t  val 
)
inherited

set alpha at given index to given value

Parameters
idxindex of alpha vector
valnew value of alpha vector
Returns
if operation was successful

Definition at line 156 of file KernelMachine.cpp.

void set_alphas ( SGVector< float64_t alphas)
inherited

set alphas to given values

Parameters
alphasfloat vector with all alphas to set

Definition at line 171 of file KernelMachine.cpp.

void set_batch_computation_enabled ( bool  enable)
inherited

set batch computation enabled

Parameters
enableif batch computation shall be enabled

Definition at line 91 of file KernelMachine.cpp.

void set_bias ( float64_t  bias)
inherited

set bias to given value

Parameters
biasnew bias

Definition at line 126 of file KernelMachine.cpp.

void set_bias_enabled ( bool  enable_bias)
inherited

set state of bias

Parameters
enable_biasif bias shall be enabled

Definition at line 111 of file KernelMachine.cpp.

void set_C ( float64_t  c_neg,
float64_t  c_pos 
)
inherited

set C

Parameters
c_negnew C constant for negatively labeled examples
c_posnew C constant for positively labeled examples

Note that not all SVMs support this (however at least CLibSVM and CSVMLight do)

Definition at line 116 of file SVM.h.

void set_callback_function ( CMKL m,
bool(*)(CMKL *mkl, const float64_t *sumw, const float64_t suma)  cb 
)
inherited

set callback function svm optimizers may call when they have a new (small) set of alphas

Parameters
mpointer to mkl object
cbcallback function

Definition at line 232 of file SVM.cpp.

void set_defaults ( int32_t  num_sv = 0)
inherited

set default values for members a SVM object

Definition at line 48 of file SVM.cpp.

void set_epsilon ( float64_t  eps)
inherited

set epsilon

Parameters
epsnew epsilon

Definition at line 123 of file SVM.h.

void set_generic< floatmax_t > ( )
inherited

set generic type to T

Definition at line 41 of file SGObject.cpp.

void set_global_io ( SGIO io)
inherited

set the io object

Parameters
ioio object to use

Definition at line 217 of file SGObject.cpp.

void set_global_parallel ( Parallel parallel)
inherited

set the parallel object

Parameters
parallelparallel object to use

Definition at line 230 of file SGObject.cpp.

void set_global_version ( Version version)
inherited

set the version object

Parameters
versionversion object to use

Definition at line 265 of file SGObject.cpp.

void set_kernel ( CKernel k)
inherited

set kernel

Parameters
kkernel

Definition at line 78 of file KernelMachine.cpp.

void set_labels ( CLabels lab)
virtualinherited

set labels

Parameters
lablabels

Reimplemented in CRelaxedTree, and CMulticlassMachine.

Definition at line 75 of file Machine.cpp.

void set_linadd_enabled ( bool  enable)
inherited

set linadd enabled

Parameters
enableif linadd shall be enabled

Definition at line 101 of file KernelMachine.cpp.

void set_linear_term ( const SGVector< float64_t linear_term)
virtualinherited

set linear term of the QP

Parameters
linear_termthe linear term

Definition at line 314 of file SVM.cpp.

void set_max_train_time ( float64_t  t)
inherited

set maximum training time

Parameters
tmaximimum training time

Definition at line 92 of file Machine.cpp.

void set_nu ( float64_t  nue)
inherited

set nu

Parameters
nuenew nu

Definition at line 105 of file SVM.h.

void set_objective ( float64_t  v)
inherited

set objective

Parameters
vobjective

Definition at line 207 of file SVM.h.

void set_qpsize ( int32_t  qps)
inherited

set qpsize

Parameters
qpsnew qpsize

Definition at line 141 of file SVM.h.

void set_shrinking_enabled ( bool  enable)
inherited

set state of shrinking

Parameters
enableif shrinking will be enabled

Definition at line 177 of file SVM.h.

void set_solver_type ( ESolverType  st)
inherited

set solver type

Parameters
stsolver type

Definition at line 107 of file Machine.cpp.

void set_store_model_features ( bool  store_model)
virtualinherited

Setter for store-model-features-after-training flag

Parameters
store_modelwhether model should be stored after training

Definition at line 117 of file Machine.cpp.

bool set_support_vector ( int32_t  idx,
int32_t  val 
)
inherited

set support vector at given index to given value

Parameters
idxindex of support vector
valnew value of support vector
Returns
if operation was successful

Definition at line 146 of file KernelMachine.cpp.

void set_support_vectors ( SGVector< int32_t >  svs)
inherited

set support vectors to given values

Parameters
svsinteger vector with all support vectors indexes to set

Definition at line 176 of file KernelMachine.cpp.

void set_tube_epsilon ( float64_t  eps)
inherited

set tube epsilon

Parameters
epsnew tube epsilon

Definition at line 129 of file SVM.h.

virtual CSGObject* shallow_copy ( ) const
virtualinherited

A shallow copy. All the SGObject instance variables will be simply assigned and SG_REF-ed.

Reimplemented in CGaussianKernel.

Definition at line 122 of file SGObject.h.

int32_t shrink_problem ( SHRINK_STATE *  shrink_state,
int32_t *  active2dnum,
int32_t *  last_suboptimal_at,
int32_t  iteration,
int32_t  totdoc,
int32_t  minshrink,
float64_t a,
int32_t *  inconsistent,
float64_t c,
float64_t lin,
int *  label 
)

shrink problem

Parameters
shrink_stateshrink state
active2dnumactive 2D num
last_suboptimal_atlast suboptimal at
iterationiteration
totdoctotdoc
minshrinkminimal shrink
aa
inconsistentinconsistent
cc
linlin
labellabel
Returns
something inty

Definition at line 1975 of file SVMLight.cpp.

void shrink_state_cleanup ( SHRINK_STATE *  shrink_state)

cleanup shrink state

Parameters
shrink_stateshrink state

Definition at line 1964 of file SVMLight.cpp.

void store_model_features ( )
protectedvirtualinherited

Stores feature data of the SV indices and sets it to the lhs of the underlying kernel. Then, all SV indices are set to identity.

May be overwritten by subclasses in case the model should be stored differently.

Reimplemented from CMachine.

Definition at line 450 of file KernelMachine.cpp.

virtual bool supports_locking ( ) const
virtualinherited
Returns
whether machine supports locking

Reimplemented from CMachine.

Definition at line 285 of file KernelMachine.h.

void svm_learn ( )

learn SVM

Definition at line 296 of file SVMLight.cpp.

bool train ( CFeatures data = NULL)
virtualinherited

train machine

Parameters
datatraining data (parameter can be avoided if distance or kernel-based classifiers are used and distance/kernels are initialized with train data). If flag is set, model features will be stored after training.
Returns
whether training was successful

Reimplemented in CRelaxedTree, CSGDQN, and COnlineSVMSGD.

Definition at line 49 of file Machine.cpp.

bool train_locked ( SGVector< index_t indices)
virtualinherited

Trains a locked machine on a set of indices. Error if machine is not locked

Parameters
indicesindex vector (of locked features) that is used for training
Returns
whether training was successful

Reimplemented from CMachine.

Definition at line 479 of file KernelMachine.cpp.

bool train_machine ( CFeatures data = NULL)
protectedvirtual

train SVM classifier

Parameters
datatraining data (parameter can be avoided if distance or kernel-based classifiers are used and distance/kernels are initialized with train data)
Returns
whether training was successful

Reimplemented from CMachine.

Reimplemented in CSVRLight, CDomainAdaptationSVM, and CSVMLightOneClass.

Definition at line 175 of file SVMLight.cpp.

virtual bool train_require_labels ( ) const
protectedvirtualinherited

returns whether machine require labels for training

Reimplemented in COnlineLinearMachine, CKMeans, CHierarchical, CLinearLatentMachine, CVwConditionalProbabilityTree, CConditionalProbabilityTree, and CLibSVMOneClass.

Definition at line 349 of file Machine.h.

void unset_generic ( )
inherited

unset generic type

this has to be called in classes specializing a template class

Definition at line 285 of file SGObject.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
docsdocs
labellabel
active2dnumactive 2D num
aa
a_oldold a
working2dnumworking 2D num
totdoctotdoc
linlin
aicacheai cache
cc

Reimplemented in CSVRLight.

Definition at line 1426 of file SVMLight.cpp.

void * update_linear_component_linadd_helper ( void *  p)
staticprotected

helper for update linear component linadd

Parameters
pp

Reimplemented in CSVRLight.

Definition at line 97 of file SVMLight.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 
)

update linear component MKL

Parameters
docsdocs
labellabel
active2dnumactive 2D num
aa
a_oldold a
working2dnumworking 2D num
totdoctotdoc
linlin
aicacheai cache

Definition at line 1523 of file SVMLight.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 
)

update linear component MKL

Parameters
docsdocs
labellabel
active2dnumactive 2D num
aa
a_oldold a
working2dnumworking 2D num
totdoctotdoc
linlin
aicacheai cache

Definition at line 1597 of file SVMLight.cpp.

void * update_linear_component_mkl_linadd_helper ( void *  p)
static

helper for update linear component MKL linadd

Parameters
pp

Definition at line 1671 of file SVMLight.cpp.

bool update_parameter_hash ( )
protectedvirtualinherited

Updates the hash of current parameter combination.

Returns
bool if parameter combination has changed since last update.

Definition at line 237 of file SGObject.cpp.

Member Data Documentation

float64_t C1
protectedinherited

C1 regularization const

Definition at line 255 of file SVM.h.

float64_t C2
protectedinherited

C2

Definition at line 257 of file SVM.h.

bool(* callback)(CMKL *mkl, const float64_t *sumw, const float64_t suma)
protectedinherited

callback function svm optimizers may call when they have a new (small) set of alphas

Definition at line 267 of file SVM.h.

int32_t count
protected

number of iteration

Definition at line 687 of file SVMLight.h.

float64_t* dual
protected

dual

Definition at line 678 of file SVMLight.h.

float64_t epsilon
protectedinherited

epsilon

Definition at line 249 of file SVM.h.

int32_t init_iter
protected

init iter

Definition at line 668 of file SVMLight.h.

float64_t init_margin
protected

init margin

Definition at line 666 of file SVMLight.h.

SGIO* io
inherited

io

Definition at line 462 of file SGObject.h.

CKernel* kernel
protectedinherited

kernel

Definition at line 316 of file KernelMachine.h.

LEARN_PARM* learn_parm
protected

learn parameters

Definition at line 661 of file SVMLight.h.

SGVector<float64_t> m_alpha
protectedinherited

coefficients alpha

Definition at line 337 of file KernelMachine.h.

float64_t m_bias
protectedinherited

bias term b

Definition at line 334 of file KernelMachine.h.

CCustomKernel* m_custom_kernel
protectedinherited

is filled with pre-computed custom kernel on data lock

Definition at line 319 of file KernelMachine.h.

bool m_data_locked
protectedinherited

whether data is locked

Definition at line 365 of file Machine.h.

uint32_t m_hash
inherited

Hash of parameter values

Definition at line 480 of file SGObject.h.

CKernel* m_kernel_backup
protectedinherited

old kernel is stored here on data lock

Definition at line 322 of file KernelMachine.h.

CLabels* m_labels
protectedinherited

labels

Definition at line 356 of file Machine.h.

SGVector<float64_t> m_linear_term
protectedinherited

linear term in qp

Definition at line 244 of file SVM.h.

float64_t m_max_train_time
protectedinherited

maximum training time

Definition at line 353 of file Machine.h.

Parameter* m_model_selection_parameters
inherited

model selection parameters

Definition at line 474 of file SGObject.h.

ParameterMap* m_parameter_map
inherited

map for different parameter versions

Definition at line 477 of file SGObject.h.

Parameter* m_parameters
inherited

parameters

Definition at line 471 of file SGObject.h.

ESolverType m_solver_type
protectedinherited

solver type

Definition at line 359 of file Machine.h.

bool m_store_model_features
protectedinherited

whether model features should be stored after training

Definition at line 362 of file Machine.h.

SGVector<int32_t> m_svs
protectedinherited

array of ``support vectors'' (indices of feature objects)

Definition at line 340 of file KernelMachine.h.

CMKL* mkl
protectedinherited

mkl object that svm optimizers need to pass when calling the callback function

Definition at line 270 of file SVM.h.

bool mkl_converged
protected

mkl converged

Definition at line 693 of file SVMLight.h.

MODEL* model
protected

model

Definition at line 659 of file SVMLight.h.

float64_t model_b
protected

model b

Definition at line 672 of file SVMLight.h.

float64_t mymaxdiff
protected

current alpha gap

Definition at line 689 of file SVMLight.h.

float64_t nu
protectedinherited

nu

Definition at line 253 of file SVM.h.

float64_t objective
protectedinherited

objective

Definition at line 259 of file SVM.h.

float64_t opt_precision
protected

opt precision

Definition at line 674 of file SVMLight.h.

Parallel* parallel
inherited

parallel

Definition at line 465 of file SGObject.h.

int32_t precision_violations
protected

precision violations

Definition at line 670 of file SVMLight.h.

float64_t* primal
protected

primal

Definition at line 676 of file SVMLight.h.

int32_t qpsize
protectedinherited

qpsize

Definition at line 261 of file SVM.h.

bool svm_loaded
protectedinherited

if SVM is loaded

Definition at line 247 of file SVM.h.

float64_t tube_epsilon
protectedinherited

tube epsilon for support vector regression

Definition at line 251 of file SVM.h.

bool use_batch_computation
protectedinherited

if batch computation is enabled

Definition at line 325 of file KernelMachine.h.

bool use_bias
protectedinherited

if bias shall be used

Definition at line 331 of file KernelMachine.h.

bool use_kernel_cache
protected

if kernel cache is used

Definition at line 691 of file SVMLight.h.

bool use_linadd
protectedinherited

if linadd is enabled

Definition at line 328 of file KernelMachine.h.

bool use_shrinking
protectedinherited

if shrinking shall be used

Definition at line 263 of file SVM.h.

int32_t verbosity
protected

verbosity level (0-4)

Definition at line 663 of file SVMLight.h.

Version* version
inherited

version

Definition at line 468 of file SGObject.h.

float64_t* W
protected

Matrix that stores the contribution by each kernel for each example (for current alphas)

Definition at line 685 of file SVMLight.h.


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

SHOGUN Machine Learning Toolbox - Documentation