SHOGUN
4.2.0
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The MultitaskKernel allows learning a piece-wise linear function (PLIF) via MKL.
Definition at line 27 of file MultitaskKernelPlifNormalizer.h.
Public Member Functions | |
CMultitaskKernelPlifNormalizer () | |
CMultitaskKernelPlifNormalizer (std::vector< float64_t > support_, std::vector< int32_t > task_vector) | |
virtual float64_t | normalize (float64_t value, int32_t idx_lhs, int32_t idx_rhs) |
int32_t | get_num_unique_tasks (std::vector< int32_t > vec) |
virtual | ~CMultitaskKernelPlifNormalizer () |
void | update_cache () |
float64_t | compute_task_similarity (int32_t task_a, int32_t task_b) |
virtual std::vector< int32_t > | get_task_vector_lhs () const |
virtual void | set_task_vector_lhs (std::vector< int32_t > vec) |
virtual std::vector< int32_t > | get_task_vector_rhs () const |
virtual void | set_task_vector_rhs (std::vector< int32_t > vec) |
virtual void | set_task_vector (std::vector< int32_t > vec) |
float64_t | get_task_distance (int32_t task_lhs, int32_t task_rhs) |
void | set_task_distance (int32_t task_lhs, int32_t task_rhs, float64_t distance) |
float64_t | get_task_similarity (int32_t task_lhs, int32_t task_rhs) |
void | set_task_similarity (int32_t task_lhs, int32_t task_rhs, float64_t similarity) |
float64_t | get_beta (int32_t idx) |
void | set_beta (int32_t idx, float64_t weight) |
int32_t | get_num_betas () |
virtual const char * | get_name () const |
CMultitaskKernelPlifNormalizer * | KernelNormalizerToMultitaskKernelPlifNormalizer (CKernelNormalizer *n) |
virtual bool | init (CKernel *k) |
virtual float64_t | normalize_lhs (float64_t value, int32_t idx_lhs) |
virtual float64_t | normalize_rhs (float64_t value, int32_t idx_rhs) |
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) |
bool | has (const std::string &name) const |
template<typename T > | |
bool | has (const Tag< T > &tag) const |
template<typename T , typename U = void> | |
bool | has (const std::string &name) const |
template<typename T > | |
void | set (const Tag< T > &_tag, const T &value) |
template<typename T , typename U = void> | |
void | set (const std::string &name, const T &value) |
template<typename T > | |
T | get (const Tag< T > &_tag) const |
template<typename T , typename U = void> | |
T | get (const std::string &name) const |
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 Attributes | |
SGIO * | io |
Parallel * | parallel |
Version * | version |
Parameter * | m_parameters |
Parameter * | m_model_selection_parameters |
Parameter * | m_gradient_parameters |
uint32_t | m_hash |
Protected Member Functions | |
virtual void | register_params () |
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) |
template<typename T > | |
void | register_param (Tag< T > &_tag, const T &value) |
template<typename T > | |
void | register_param (const std::string &name, const T &value) |
Protected Attributes | |
int32_t | num_tasks |
int32_t | num_tasksqr |
std::vector< int32_t > | task_vector_lhs |
std::vector< int32_t > | task_vector_rhs |
std::vector< float64_t > | distance_matrix |
std::vector< float64_t > | similarity_matrix |
int32_t | num_betas |
std::vector< float64_t > | betas |
std::vector< float64_t > | support |
float64_t | scale |
ENormalizerType | m_type |
default constructor
Definition at line 32 of file MultitaskKernelPlifNormalizer.h.
CMultitaskKernelPlifNormalizer | ( | std::vector< float64_t > | support_, |
std::vector< int32_t > | task_vector | ||
) |
constructor
Definition at line 41 of file MultitaskKernelPlifNormalizer.h.
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virtual |
default destructor
Definition at line 118 of file MultitaskKernelPlifNormalizer.h.
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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.
dict | dictionary of parameters to be built. |
Definition at line 630 of file SGObject.cpp.
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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.
Definition at line 747 of file SGObject.cpp.
float64_t compute_task_similarity | ( | int32_t | task_a, |
int32_t | task_b | ||
) |
derive similarity from distance with plif
Definition at line 143 of file MultitaskKernelPlifNormalizer.h.
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virtualinherited |
A deep copy. All the instance variables will also be copied.
Definition at line 231 of file SGObject.cpp.
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.
other | object to compare with |
accuracy | accuracy to use for comparison (optional) |
tolerant | allows linient check on float equality (within accuracy) |
Definition at line 651 of file SGObject.cpp.
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Getter for a class parameter, identified by a Tag. Throws an exception if the class does not have such a parameter.
_tag | name and type information of parameter |
Definition at line 367 of file SGObject.h.
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Getter for a class parameter, identified by a name. Throws an exception if the class does not have such a parameter.
name | name of the parameter |
Definition at line 388 of file SGObject.h.
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idx | index of MKL weight to get |
Implements CMultitaskKernelMklNormalizer.
Definition at line 283 of file MultitaskKernelPlifNormalizer.h.
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Definition at line 531 of file SGObject.cpp.
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Returns description of a given parameter string, if it exists. SG_ERROR otherwise
param_name | name of the parameter |
Definition at line 555 of file SGObject.cpp.
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Returns index of model selection parameter with provided index
param_name | name of model selection parameter |
Definition at line 568 of file SGObject.cpp.
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Reimplemented from CMultitaskKernelMklNormalizer.
Definition at line 315 of file MultitaskKernelPlifNormalizer.h.
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getter for normalizer type
Definition at line 102 of file KernelNormalizer.h.
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Implements CMultitaskKernelMklNormalizer.
Definition at line 306 of file MultitaskKernelPlifNormalizer.h.
int32_t get_num_unique_tasks | ( | std::vector< int32_t > | vec | ) |
helper routine
vec | vector with containing task_id for each example |
Definition at line 101 of file MultitaskKernelPlifNormalizer.h.
float64_t get_task_distance | ( | int32_t | task_lhs, |
int32_t | task_rhs | ||
) |
task_lhs | task_id on left hand side |
task_rhs | task_id on right hand side |
Definition at line 223 of file MultitaskKernelPlifNormalizer.h.
float64_t get_task_similarity | ( | int32_t | task_lhs, |
int32_t | task_rhs | ||
) |
task_lhs | task_id on left hand side |
task_rhs | task_id on right hand side |
Definition at line 254 of file MultitaskKernelPlifNormalizer.h.
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Definition at line 188 of file MultitaskKernelPlifNormalizer.h.
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Definition at line 200 of file MultitaskKernelPlifNormalizer.h.
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Checks if object has a class parameter identified by a name.
name | name of the parameter |
Definition at line 289 of file SGObject.h.
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Checks if object has a class parameter identified by a Tag.
tag | tag of the parameter containing name and type information |
Definition at line 301 of file SGObject.h.
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Checks if a type exists for a class parameter identified by a name.
name | name of the parameter |
Definition at line 312 of file SGObject.h.
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initialization of the normalizer
k | kernel |
Implements CKernelNormalizer.
Definition at line 43 of file MultitaskKernelMklNormalizer.h.
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virtualinherited |
If the SGSerializable is a class template then TRUE will be returned and GENERIC is set to the type of the generic.
generic | set to the type of the generic if returning TRUE |
Definition at line 329 of file SGObject.cpp.
CMultitaskKernelPlifNormalizer* KernelNormalizerToMultitaskKernelPlifNormalizer | ( | CKernelNormalizer * | n | ) |
casts kernel normalizer to multitask kernel plif normalizer
n | kernel normalizer to cast |
Definition at line 323 of file MultitaskKernelPlifNormalizer.h.
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virtualinherited |
Load this object from file. If it will fail (returning FALSE) then this object will contain inconsistent data and should not be used!
file | where to load from |
prefix | prefix for members |
Definition at line 402 of file SGObject.cpp.
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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.
ShogunException | will be thrown if an error occurs. |
Reimplemented in CKernel, CWeightedDegreePositionStringKernel, CList, CAlphabet, CLinearHMM, CGaussianKernel, CInverseMultiQuadricKernel, CCircularKernel, and CExponentialKernel.
Definition at line 459 of file SGObject.cpp.
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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.
ShogunException | will be thrown if an error occurs. |
Reimplemented in CDynamicArray< T >, CDynamicArray< float64_t >, CDynamicArray< float32_t >, CDynamicArray< int32_t >, CDynamicArray< char >, CDynamicArray< bool >, and CDynamicObjectArray.
Definition at line 454 of file SGObject.cpp.
normalize the kernel value
value | kernel value |
idx_lhs | index of left hand side vector |
idx_rhs | index of right hand side vector |
Implements CKernelNormalizer.
Definition at line 76 of file MultitaskKernelPlifNormalizer.h.
normalize only the left hand side vector
value | value of a component of the left hand side feature vector |
idx_lhs | index of left hand side vector |
Implements CKernelNormalizer.
Reimplemented in CMultitaskKernelTreeNormalizer.
Definition at line 80 of file MultitaskKernelMklNormalizer.h.
normalize only the right hand side vector
value | value of a component of the right hand side feature vector |
idx_rhs | index of right hand side vector |
Implements CKernelNormalizer.
Reimplemented in CMultitaskKernelTreeNormalizer.
Definition at line 90 of file MultitaskKernelMklNormalizer.h.
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Definition at line 295 of file SGObject.cpp.
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prints all parameter registered for model selection and their type
Definition at line 507 of file SGObject.cpp.
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prints registered parameters out
prefix | prefix for members |
Definition at line 341 of file SGObject.cpp.
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protectedinherited |
Registers a class parameter which is identified by a tag. This enables the parameter to be modified by set() and retrieved by get(). Parameters can be registered in the constructor of the class.
_tag | name and type information of parameter |
value | value of the parameter |
Definition at line 439 of file SGObject.h.
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protectedinherited |
Registers a class parameter which is identified by a name. This enables the parameter to be modified by set() and retrieved by get(). Parameters can be registered in the constructor of the class.
name | name of the parameter |
value | value of the parameter along with type information |
Definition at line 452 of file SGObject.h.
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register the parameters
Reimplemented from CKernelNormalizer.
Definition at line 331 of file MultitaskKernelPlifNormalizer.h.
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Save this object to file.
file | where to save the object; will be closed during returning if PREFIX is an empty string. |
prefix | prefix for members |
Definition at line 347 of file SGObject.cpp.
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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.
ShogunException | will be thrown if an error occurs. |
Reimplemented in CKernel.
Definition at line 469 of file SGObject.cpp.
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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.
ShogunException | will be thrown if an error occurs. |
Reimplemented in CKernel, CDynamicArray< T >, CDynamicArray< float64_t >, CDynamicArray< float32_t >, CDynamicArray< int32_t >, CDynamicArray< char >, CDynamicArray< bool >, and CDynamicObjectArray.
Definition at line 464 of file SGObject.cpp.
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Setter for a class parameter, identified by a Tag. Throws an exception if the class does not have such a parameter.
_tag | name and type information of parameter |
value | value of the parameter |
Definition at line 328 of file SGObject.h.
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Setter for a class parameter, identified by a name. Throws an exception if the class does not have such a parameter.
name | name of the parameter |
value | value of the parameter along with type information |
Definition at line 354 of file SGObject.h.
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virtual |
idx | index of MKL weight to set |
weight | MKL weight to set |
Implements CMultitaskKernelMklNormalizer.
Definition at line 294 of file MultitaskKernelPlifNormalizer.h.
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Definition at line 74 of file SGObject.cpp.
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Definition at line 79 of file SGObject.cpp.
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Definition at line 84 of file SGObject.cpp.
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Definition at line 89 of file SGObject.cpp.
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Definition at line 94 of file SGObject.cpp.
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Definition at line 99 of file SGObject.cpp.
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Definition at line 104 of file SGObject.cpp.
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Definition at line 109 of file SGObject.cpp.
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Definition at line 114 of file SGObject.cpp.
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Definition at line 119 of file SGObject.cpp.
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Definition at line 124 of file SGObject.cpp.
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Definition at line 129 of file SGObject.cpp.
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Definition at line 134 of file SGObject.cpp.
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Definition at line 139 of file SGObject.cpp.
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Definition at line 144 of file SGObject.cpp.
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set generic type to T
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set the parallel object
parallel | parallel object to use |
Definition at line 274 of file SGObject.cpp.
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set the version object
version | version object to use |
Definition at line 316 of file SGObject.cpp.
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setter for normalizer type
type | type of normalizer |
Definition at line 110 of file KernelNormalizer.h.
void set_task_distance | ( | int32_t | task_lhs, |
int32_t | task_rhs, | ||
float64_t | distance | ||
) |
task_lhs | task_id on left hand side |
task_rhs | task_id on right hand side |
distance | distance between tasks |
Definition at line 238 of file MultitaskKernelPlifNormalizer.h.
void set_task_similarity | ( | int32_t | task_lhs, |
int32_t | task_rhs, | ||
float64_t | similarity | ||
) |
task_lhs | task_id on left hand side |
task_rhs | task_id on right hand side |
similarity | similarity between tasks |
Definition at line 269 of file MultitaskKernelPlifNormalizer.h.
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vec | task vector with containing task_id for each example |
Definition at line 212 of file MultitaskKernelPlifNormalizer.h.
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vec | task vector with containing task_id for each example |
Definition at line 194 of file MultitaskKernelPlifNormalizer.h.
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vec | task vector with containing task_id for each example |
Definition at line 206 of file MultitaskKernelPlifNormalizer.h.
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A shallow copy. All the SGObject instance variables will be simply assigned and SG_REF-ed.
Reimplemented in CGaussianKernel.
Definition at line 225 of file SGObject.cpp.
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unset generic type
this has to be called in classes specializing a template class
Definition at line 336 of file SGObject.cpp.
void update_cache | ( | ) |
update cache
Definition at line 124 of file MultitaskKernelPlifNormalizer.h.
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Updates the hash of current parameter combination
Definition at line 281 of file SGObject.cpp.
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weights
Definition at line 362 of file MultitaskKernelPlifNormalizer.h.
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MxM matrix encoding distance between tasks
Definition at line 353 of file MultitaskKernelPlifNormalizer.h.
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io
Definition at line 537 of file SGObject.h.
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parameters wrt which we can compute gradients
Definition at line 552 of file SGObject.h.
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Hash of parameter values
Definition at line 555 of file SGObject.h.
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model selection parameters
Definition at line 549 of file SGObject.h.
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parameters
Definition at line 546 of file SGObject.h.
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normalizer type
Definition at line 117 of file KernelNormalizer.h.
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number of weights
Definition at line 359 of file MultitaskKernelPlifNormalizer.h.
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number of tasks
Definition at line 342 of file MultitaskKernelPlifNormalizer.h.
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square of num_tasks – for registration purpose
Definition at line 344 of file MultitaskKernelPlifNormalizer.h.
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parallel
Definition at line 540 of file SGObject.h.
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scale constant obtained from k(0,0)
Definition at line 127 of file MultitaskKernelMklNormalizer.h.
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MxM matrix encoding similarity between tasks
Definition at line 356 of file MultitaskKernelPlifNormalizer.h.
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support points
Definition at line 365 of file MultitaskKernelPlifNormalizer.h.
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task vector indicating to which task each example on the left hand side belongs
Definition at line 347 of file MultitaskKernelPlifNormalizer.h.
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task vector indicating to which task each example on the right hand side belongs
Definition at line 350 of file MultitaskKernelPlifNormalizer.h.
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version
Definition at line 543 of file SGObject.h.