详细描述

Preprocessor HomogeneousKernelMap performs homogeneous kernel maps as described in.

A. Vedaldi and A. Zisserman. Efficient additive kernels via explicit feature maps. In PAMI, 2011

The homogeneous kernel map is a finite dimensional linear approximation of homogeneous kernels, including the intersection, chi-squared, and Jensen-Shannon kernels. These kernels are frequently used in computer vision applications because they are particular suitable for data in the format of histograms, which encompasses many visual descriptors used.

The implementation is unsafe to work with negative feature values.

Implementation is based on the vlfeat library.

在文件 HomogeneousKernelMap.h 第 55 行定义.

类 CHomogeneousKernelMap 继承关系图:

[图例]

Public 成员函数
	CHomogeneousKernelMap ()

	CHomogeneousKernelMap (HomogeneousKernelType kernel, HomogeneousKernelMapWindowType wType, float64_t gamma=1.0, uint64_t order=1, float64_t period=-1)

virtual	~CHomogeneousKernelMap ()

virtual bool	init (CFeatures *features)

virtual void	cleanup ()

virtual SGMatrix< float64_t >	apply_to_feature_matrix (CFeatures *features)

virtual SGVector< float64_t >	apply_to_feature_vector (SGVector< float64_t > vector)
	apply preproc on single feature vector 更多...

virtual const char *	get_name () const

virtual EPreprocessorType	get_type () const

void	set_kernel_type (HomogeneousKernelType k)

HomogeneousKernelType	get_kernel_type () const

void	set_window_type (HomogeneousKernelMapWindowType w)

HomogeneousKernelMapWindowType	get_window_type () const

void	set_gamma (float64_t g)

float64_t	get_gamma (float64_t g) const

void	set_order (uint64_t o)

uint64_t	get_order () const

void	set_period (float64_t p)

float64_t	get_period () const

virtual CFeatures *	apply (CFeatures *features)

virtual EFeatureClass	get_feature_class ()
	return that we are dense features (just fixed size matrices) 更多...

virtual EFeatureType	get_feature_type ()
	return feature type 更多...

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)

构造及析构函数说明

CHomogeneousKernelMap ( )

default constructor

在文件 HomogeneousKernelMap.cpp 第 19 行定义.

CHomogeneousKernelMap	(	HomogeneousKernelType	kernel,
		HomogeneousKernelMapWindowType	wType,
		float64_t	gamma = `1.0`,
		uint64_t	order = `1`,
		float64_t	period = `-1`
	)

constructor

参数

kernel	kernel type
wType	window type (use HomogeneousKernelMapWindowRectangular if unsure)
gamma	the homogeneity order
order	the approximation order
period	the period (use a negative value to use the default period)

在文件 HomogeneousKernelMap.cpp 第 31 行定义.

~CHomogeneousKernelMap ( )

virtual

destructor

在文件 HomogeneousKernelMap.cpp 第 46 行定义.

成员函数说明

virtual CFeatures* apply ( CFeatures * features )

virtualinherited

generic interface for applying the preprocessor. used as a wrapper for apply_to_feature_matrix() method

参数

features the dense input features

返回: the result feature object after applying the preprocessor

实现了 CPreprocessor.

SGMatrix< float64_t > apply_to_feature_matrix ( CFeatures * features )

virtual

applies to features

参数

features features

返回: feature matrix

实现了 CDensePreprocessor< float64_t >.

在文件 HomogeneousKernelMap.cpp 第 163 行定义.

SGVector< float64_t > apply_to_feature_vector ( SGVector< float64_t > vector )

virtual

apply preproc on single feature vector

applies to feature vector

参数

vector features vector

返回: transformed feature vector

实现了 CDensePreprocessor< float64_t >.

在文件 HomogeneousKernelMap.cpp 第 183 行定义.

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.

void cleanup ( )

virtual

cleanup

实现了 CPreprocessor.

在文件 HomogeneousKernelMap.cpp 第 58 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.

virtual EFeatureClass get_feature_class ( )

virtualinherited

return that we are dense features (just fixed size matrices)

实现了 CPreprocessor.

被 CRandomFourierGaussPreproc 重载.

virtual EFeatureType get_feature_type ( )

virtualinherited

return feature type

实现了 CPreprocessor.

被 CRandomFourierGaussPreproc 重载.

float64_t get_gamma ( float64_t g ) const

returns gamma

返回: gamma value

在文件 HomogeneousKernelMap.cpp 第 217 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.

HomogeneousKernelType get_kernel_type ( ) const

returns kernel type

返回: kernel type

在文件 HomogeneousKernelMap.cpp 第 195 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

实现了 CSGObject.

在文件 HomogeneousKernelMap.h 第 94 行定义.

uint64_t get_order ( ) const

returns approximation order

返回: approximation order

在文件 HomogeneousKernelMap.cpp 第 228 行定义.

float64_t get_period ( ) const

returns period value

返回: period value

在文件 HomogeneousKernelMap.cpp 第 239 行定义.

virtual EPreprocessorType get_type ( ) const

virtual

返回: a type of preprocessor

重载 CDensePreprocessor< float64_t > .

在文件 HomogeneousKernelMap.h 第 97 行定义.

HomogeneousKernelMapWindowType get_window_type ( ) const

returns window type

返回: window type

在文件 HomogeneousKernelMap.cpp 第 206 行定义.

bool init ( CFeatures * features )

virtual

initialize preprocessor from features

实现了 CPreprocessor.

在文件 HomogeneousKernelMap.cpp 第 50 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.

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.

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.

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_gamma ( float64_t g )

sets gamma

参数

g	gamma value

在文件 HomogeneousKernelMap.cpp 第 211 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_kernel_type ( HomogeneousKernelType k )

sets kernel type

参数

k	type of homogeneous kernel

在文件 HomogeneousKernelMap.cpp 第 189 行定义.

void set_order ( uint64_t o )

sets approximation order

参数

o order

在文件 HomogeneousKernelMap.cpp 第 222 行定义.

void set_period ( float64_t p )

sets period

参数

p	period value

在文件 HomogeneousKernelMap.cpp 第 233 行定义.

void set_window_type ( HomogeneousKernelMapWindowType w )

sets window type

参数

w	type of window

在文件 HomogeneousKernelMap.cpp 第 200 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_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

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.

Parallel* parallel

inherited

parallel

在文件 SGObject.h 第 372 行定义.

Version* version

inherited

version

在文件 SGObject.h 第 375 行定义.

该类的文档由以下文件生成:

详细描述

Public 成员函数

Public 属性

Protected 成员函数

构造及析构函数说明

成员函数说明

类成员变量说明