CMultitaskKernelTreeNormalizer类 参考

详细描述

The MultitaskKernel allows Multitask Learning via a modified kernel function based on taxonomy.

在文件 MultitaskKernelTreeNormalizer.h 第 378 行定义.

类 CMultitaskKernelTreeNormalizer 继承关系图:

Public 成员函数
	CMultitaskKernelTreeNormalizer ()
	CMultitaskKernelTreeNormalizer (std::vector< std::string > task_lhs, std::vector< std::string > task_rhs, CTaxonomy tax)
virtual	~CMultitaskKernelTreeNormalizer ()
void	update_cache ()
virtual float64_t	normalize (float64_t value, int32_t idx_lhs, int32_t idx_rhs)
virtual float64_t	normalize_lhs (float64_t value, int32_t idx_lhs)
virtual float64_t	normalize_rhs (float64_t value, int32_t idx_rhs)
void	set_task_vector_lhs (std::vector< std::string > vec)
void	set_task_vector_rhs (std::vector< std::string > vec)
void	set_task_vector (std::vector< std::string > vec)
int32_t	get_num_betas ()
float64_t	get_beta (int32_t idx)
void	set_beta (int32_t idx, float64_t weight)
float64_t	get_node_similarity (int32_t node_lhs, int32_t node_rhs)
void	set_node_similarity (int32_t node_lhs, int32_t node_rhs, float64_t similarity)
virtual const char *	get_name () const
CMultitaskKernelTreeNormalizer *	KernelNormalizerToMultitaskKernelTreeNormalizer (CKernelNormalizer *n)
virtual bool	init (CKernel *k)
virtual void	register_params ()
ENormalizerType	get_normalizer_type ()
void	set_normalizer_type (ENormalizerType type)
virtual CSGObject *	shallow_copy () const
virtual CSGObject *	deep_copy () const
virtual bool	is_generic (EPrimitiveType *generic) const
template<class T >
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
void	set_generic ()
template<>
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 ()
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_gradient_parameter_dictionary (CMap< TParameter *, CSGObject * > *dict)
virtual void	update_parameter_hash ()
virtual bool	parameter_hash_changed ()
virtual bool	equals (CSGObject *other, float64_t accuracy=0.0, bool tolerant=false)
virtual CSGObject *	clone ()

Public 属性
SGIO *	io
Parallel *	parallel
Version *	version
Parameter *	m_parameters
Parameter *	m_model_selection_parameters
Parameter *	m_gradient_parameters
uint32_t	m_hash

Protected 成员函数
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)

Protected 属性
CTaxonomy	taxonomy
int32_t	num_nodes
std::vector< int32_t >	task_vector_lhs
std::vector< int32_t >	task_vector_rhs
std::vector< float64_t >	dependency_matrix
float64_t	scale
ENormalizerType	m_type

构造及析构函数说明

CMultitaskKernelTreeNormalizer

(

)

default constructor

在文件 MultitaskKernelTreeNormalizer.h 第 385 行定义.

CMultitaskKernelTreeNormalizer	(	std::vector< std::string >	task_lhs,
		std::vector< std::string >	task_rhs,
		CTaxonomy	tax
	)

default constructor

参数

task_lhs	task vector with containing task_id for each example for left hand side
task_rhs	task vector with containing task_id for each example for right hand side
tax	taxonomy

在文件 MultitaskKernelTreeNormalizer.h 第 395 行定义.

virtual ~CMultitaskKernelTreeNormalizer ( )

virtual

default destructor

在文件 MultitaskKernelTreeNormalizer.h 第 413 行定义.

成员函数说明

void build_gradient_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.

参数

dict	dictionary of parameters to be built.

在文件 SGObject.cpp 第 597 行定义.

CSGObject * clone ( )

virtualinherited

Creates a clone of the current object. This is done via recursively traversing all parameters, which corresponds to a deep copy. Calling equals on the cloned object always returns true although none of the memory of both objects overlaps.

返回

an identical copy of the given object, which is disjoint in memory. NULL if the clone fails. Note that the returned object is SG_REF'ed

在文件 SGObject.cpp 第 714 行定义.

CSGObject * deep_copy ( ) const

virtualinherited

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

在文件 SGObject.cpp 第 198 行定义.

bool equals ( CSGObject *  other, float64_t  accuracy = 0.0, bool  tolerant = false  )

virtualinherited

Recursively compares the current SGObject to another one. Compares all registered numerical parameters, recursion upon complex (SGObject) parameters. Does not compare pointers!

May be overwritten but please do with care! Should not be necessary in most cases.

参数

other	object to compare with
accuracy	accuracy to use for comparison (optional)
tolerant	allows linient check on float equality (within accuracy)

返回

true if all parameters were equal, false if not

在文件 SGObject.cpp 第 618 行定义.

float64_t get_beta ( int32_t  idx )

virtual

参数

idx	id of weight

返回

weight of node with given id

实现了 CMultitaskKernelMklNormalizer.

在文件 MultitaskKernelTreeNormalizer.h 第 528 行定义.

SGIO * get_global_io ( )

inherited

get the io object

返回

io object

在文件 SGObject.cpp 第 235 行定义.

Parallel * get_global_parallel ( )

inherited

get the parallel object

返回

parallel object

在文件 SGObject.cpp 第 277 行定义.

Version * get_global_version ( )

inherited

get the version object

返回

version object

在文件 SGObject.cpp 第 290 行定义.

SGStringList< char > get_modelsel_names ( )

inherited

返回

vector of names of all parameters which are registered for model selection

在文件 SGObject.cpp 第 498 行定义.

char * get_modsel_param_descr ( const char *  param_name )

inherited

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

参数

param_name

name of the parameter

返回

description of the parameter

在文件 SGObject.cpp 第 522 行定义.

index_t get_modsel_param_index ( const char *  param_name )

inherited

Returns index of model selection parameter with provided index

参数

param_name

name of model selection parameter

返回

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

在文件 SGObject.cpp 第 535 行定义.

virtual const char* get_name ( ) const

virtual

返回

object name

重载 CMultitaskKernelMklNormalizer .

在文件 MultitaskKernelTreeNormalizer.h 第 580 行定义.

float64_t get_node_similarity	(	int32_t	node_lhs,
		int32_t	node_rhs
	)

参数

node_lhs	node_id on left hand side
node_rhs	node_id on right hand side

返回

similarity between nodes

在文件 MultitaskKernelTreeNormalizer.h 第 553 行定义.

ENormalizerType get_normalizer_type ( )

inherited

getter for normalizer type

在文件 KernelNormalizer.h 第 102 行定义.

int32_t get_num_betas ( )

virtual

返回

number of parameters/weights

实现了 CMultitaskKernelMklNormalizer.

在文件 MultitaskKernelTreeNormalizer.h 第 518 行定义.

virtual bool init ( CKernel *  k )

virtualinherited

initialization of the normalizer

参数

k

kernel

实现了 CKernelNormalizer.

在文件 MultitaskKernelMklNormalizer.h 第 43 行定义.

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.

参数

generic

set to the type of the generic if returning TRUE

返回

TRUE if a class template.

在文件 SGObject.cpp 第 296 行定义.

CMultitaskKernelTreeNormalizer* KernelNormalizerToMultitaskKernelTreeNormalizer

(

CKernelNormalizer *

n

)

casts kernel normalizer to multitask kernel tree normalizer

参数

n	kernel normalizer to cast

在文件 MultitaskKernelTreeNormalizer.h 第 588 行定义.

bool load_serializable ( CSerializableFile *  file, const char *  prefix = ""  )

virtualinherited

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

参数

file	where to load from
prefix	prefix for members

返回

TRUE if done, otherwise FALSE

在文件 SGObject.cpp 第 369 行定义.

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.

异常

ShogunException

will be thrown if an error occurs.

被 CKernel, CWeightedDegreePositionStringKernel, CList, CAlphabet, CLinearHMM, CGaussianKernel, CInverseMultiQuadricKernel, CCircularKernel , 以及 CExponentialKernel 重载.

在文件 SGObject.cpp 第 426 行定义.

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.

异常

ShogunException

will be thrown if an error occurs.

被 CDynamicArray< T >, CDynamicArray< float64_t >, CDynamicArray< float32_t >, CDynamicArray< int32_t >, CDynamicArray< char >, CDynamicArray< bool > , 以及 CDynamicObjectArray 重载.

在文件 SGObject.cpp 第 421 行定义.

virtual float64_t normalize ( float64_t  value, int32_t  idx_lhs, int32_t  idx_rhs  )

virtual

normalize the kernel value

参数

value	kernel value
idx_lhs	index of left hand side vector
idx_rhs	index of right hand side vector

实现了 CKernelNormalizer.

在文件 MultitaskKernelTreeNormalizer.h 第 443 行定义.

virtual float64_t normalize_lhs ( float64_t  value, int32_t  idx_lhs  )

virtual

normalize only the left hand side vector

参数

value	value of a component of the left hand side feature vector
idx_lhs	index of left hand side vector

重载 CMultitaskKernelMklNormalizer .

在文件 MultitaskKernelTreeNormalizer.h 第 464 行定义.

virtual float64_t normalize_rhs ( float64_t  value, int32_t  idx_rhs  )

virtual

normalize only the right hand side vector

参数

value	value of a component of the right hand side feature vector
idx_rhs	index of right hand side vector

重载 CMultitaskKernelMklNormalizer .

在文件 MultitaskKernelTreeNormalizer.h 第 474 行定义.

bool parameter_hash_changed ( )

virtualinherited

返回

whether parameter combination has changed since last update

在文件 SGObject.cpp 第 262 行定义.

void print_modsel_params ( )

inherited

prints all parameter registered for model selection and their type

在文件 SGObject.cpp 第 474 行定义.

void print_serializable ( const char *  prefix = "" )

virtualinherited

prints registered parameters out

参数

prefix

prefix for members

在文件 SGObject.cpp 第 308 行定义.

virtual void register_params ( )

virtualinherited

register the parameters

被 CMultitaskKernelPlifNormalizer 重载.

在文件 KernelNormalizer.h 第 94 行定义.

bool save_serializable ( CSerializableFile *  file, const char *  prefix = ""  )

virtualinherited

Save this object to file.

参数

file	where to save the object; will be closed during returning if PREFIX is an empty string.
prefix	prefix for members

返回

TRUE if done, otherwise FALSE

在文件 SGObject.cpp 第 314 行定义.

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.

异常

ShogunException

will be thrown if an error occurs.

被 CKernel 重载.

在文件 SGObject.cpp 第 436 行定义.

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.

异常

ShogunException

will be thrown if an error occurs.

被 CKernel, CDynamicArray< T >, CDynamicArray< float64_t >, CDynamicArray< float32_t >, CDynamicArray< int32_t >, CDynamicArray< char >, CDynamicArray< bool > , 以及 CDynamicObjectArray 重载.

在文件 SGObject.cpp 第 431 行定义.

void set_beta ( int32_t  idx, float64_t  weight  )

virtual

参数

idx	id of weight
weight	weight of node with given id

实现了 CMultitaskKernelMklNormalizer.

在文件 MultitaskKernelTreeNormalizer.h 第 538 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 41 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 46 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 51 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 56 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 61 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 66 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 71 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 76 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 81 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 86 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 91 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 96 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 101 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 106 行定义.

void set_generic ( )

inherited

在文件 SGObject.cpp 第 111 行定义.

void set_generic ( )

inherited

set generic type to T

void set_global_io ( SGIO *  io )

inherited

set the io object

参数

io	io object to use

在文件 SGObject.cpp 第 228 行定义.

void set_global_parallel ( Parallel *  parallel )

inherited

set the parallel object

参数

parallel

parallel object to use

在文件 SGObject.cpp 第 241 行定义.

void set_global_version ( Version *  version )

inherited

set the version object

参数

version

version object to use

在文件 SGObject.cpp 第 283 行定义.

void set_node_similarity	(	int32_t	node_lhs,
		int32_t	node_rhs,
		float64_t	similarity
	)

参数

node_lhs	node_id on left hand side
node_rhs	node_id on right hand side
similarity	similarity between nodes

在文件 MultitaskKernelTreeNormalizer.h 第 568 行定义.

void set_normalizer_type ( ENormalizerType  type )

inherited

setter for normalizer type

参数

type	type of normalizer

在文件 KernelNormalizer.h 第 110 行定义.

void set_task_vector

(

std::vector< std::string >

vec

)

参数

vec	task vector with containing task_id for each example

在文件 MultitaskKernelTreeNormalizer.h 第 511 行定义.

void set_task_vector_lhs

(

std::vector< std::string >

vec

)

参数

vec	task vector with containing task_id for each example

在文件 MultitaskKernelTreeNormalizer.h 第 482 行定义.

void set_task_vector_rhs

(

std::vector< std::string >

vec

)

参数

vec	task vector with containing task_id for each example

在文件 MultitaskKernelTreeNormalizer.h 第 498 行定义.

CSGObject * shallow_copy ( ) const

virtualinherited

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

被 CGaussianKernel 重载.

在文件 SGObject.cpp 第 192 行定义.

void unset_generic ( )

inherited

unset generic type

this has to be called in classes specializing a template class

在文件 SGObject.cpp 第 303 行定义.

void update_cache

(

)

update cache

在文件 MultitaskKernelTreeNormalizer.h 第 419 行定义.

void update_parameter_hash ( )

virtualinherited

Updates the hash of current parameter combination

在文件 SGObject.cpp 第 248 行定义.

类成员变量说明

std::vector<float64_t> dependency_matrix

protected

MxM matrix encoding similarity between tasks

在文件 MultitaskKernelTreeNormalizer.h 第 607 行定义.

SGIO* io

inherited

io

在文件 SGObject.h 第 369 行定义.

Parameter* m_gradient_parameters

inherited

parameters wrt which we can compute gradients

在文件 SGObject.h 第 384 行定义.

uint32_t m_hash

inherited

Hash of parameter values

在文件 SGObject.h 第 387 行定义.

Parameter* m_model_selection_parameters

inherited

model selection parameters

在文件 SGObject.h 第 381 行定义.

Parameter* m_parameters

inherited

parameters

在文件 SGObject.h 第 378 行定义.

ENormalizerType m_type

protectedinherited

normalizer type

在文件 KernelNormalizer.h 第 117 行定义.

int32_t num_nodes

protected

number of tasks

在文件 MultitaskKernelTreeNormalizer.h 第 598 行定义.

Parallel* parallel

inherited

parallel

在文件 SGObject.h 第 372 行定义.

float64_t scale

protectedinherited

scale constant obtained from k(0,0)

在文件 MultitaskKernelMklNormalizer.h 第 127 行定义.

std::vector<int32_t> task_vector_lhs

protected

task vector indicating to which task each example on the left hand side belongs

在文件 MultitaskKernelTreeNormalizer.h 第 601 行定义.

std::vector<int32_t> task_vector_rhs

protected

task vector indicating to which task each example on the right hand side belongs

在文件 MultitaskKernelTreeNormalizer.h 第 604 行定义.

CTaxonomy taxonomy

protected

taxonomy

在文件 MultitaskKernelTreeNormalizer.h 第 595 行定义.

Version* version

inherited

version

在文件 SGObject.h 第 375 行定义.

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该类的文档由以下文件生成:

• MultitaskKernelTreeNormalizer.h