SHOGUN
3.2.1
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Class to select parameters and their ranges for model selection. The structure is organized as a tree with different kinds of nodes, depending on the values of its member variables of name and CSGObject.
-root node: no name and no CSGObject, may have children
-CSGObject node: has name and a CSGObject, may have children which are the parameters of the CSGObject. CSGObjects are SG_REF'ed/SG_UNREF'ed
-value node: a node with a (parameter) name and an array of values for that parameter. These ranges may be set using build_values(). This node is always a leaf.
After a (legal!) tree is constructed with the append_child method, all possible combinations that are implied by this tree may be extracted with the get_combinations method. It generates a set of trees (different kind than this one) that contain the instantiated parameter combinations.
Definition at line 71 of file ModelSelectionParameters.h.
Public Member Functions | |
CModelSelectionParameters () | |
CModelSelectionParameters (const char *node_name) | |
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="", int32_t param_version=Version::get_version_parameter()) |
virtual bool | load_serializable (CSerializableFile *file, const char *prefix="", int32_t param_version=Version::get_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) |
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 Attributes | |
SGIO * | io |
Parallel * | parallel |
Version * | version |
Parameter * | m_parameters |
Parameter * | m_model_selection_parameters |
Parameter * | m_gradient_parameters |
ParameterMap * | m_parameter_map |
uint32_t | m_hash |
Protected Member Functions | |
virtual TParameter * | migrate (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) |
name of the parameter of the CSGObject | |||
constructor for a CSGObject node
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CModelSelectionParameters (const char *node_name, CSGObject *sgobject) | |||
~CModelSelectionParameters () | |||
void | append_child (CModelSelectionParameters *child) | ||
template<class T > | |||
void | set_values (const SGVector< T > &values, EMSParamType value_type) | ||
void | print_tree (int prefix_num=0) | ||
CDynamicObjectArray * | get_combinations (index_t prefix_num=1) | ||
CParameterCombination * | get_single_combination (bool rand=true) | ||
void | build_values (float64_t min, float64_t max, ERangeType type, float64_t step=1.0, float64_t type_base=2.0) | ||
void | build_values_vector (float64_t min, float64_t max, ERangeType type, void *vector, index_t *size, float64_t step=1.0, float64_t type_base=2.0) | ||
void | build_values_sgvector (float64_t min, float64_t max, ERangeType type, void *vector, float64_t step=1.0, float64_t type_base=2.0) | ||
void | build_values (int32_t min, int32_t max, ERangeType type, int32_t step=1, int32_t type_base=2) | ||
void | build_values_vector (int32_t min, int32_t max, ERangeType type, void *vector, index_t *size, int32_t step=1, int32_t type_base=2) | ||
void | build_values_sgvector (int32_t min, int32_t max, ERangeType type, void *vector, int32_t step=1, int32_t type_base=2) | ||
virtual const char * | get_name () const | ||
bool | has_children () const | ||
constructor for a root node
Definition at line 22 of file ModelSelectionParameters.cpp.
CModelSelectionParameters | ( | const char * | node_name | ) |
constructor for a value node
node_name | name of the parameter the values will belong to |
Definition at line 27 of file ModelSelectionParameters.cpp.
CModelSelectionParameters | ( | const char * | node_name, |
CSGObject * | sgobject | ||
) |
Definition at line 34 of file ModelSelectionParameters.cpp.
destructor. If set, deletes data array and SG_UNREF's the CSGObject
Definition at line 57 of file ModelSelectionParameters.cpp.
void append_child | ( | CModelSelectionParameters * | child | ) |
appends a child to this tree. only possible if this is no value node
child | child to append |
Definition at line 65 of file ModelSelectionParameters.cpp.
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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.
dict | dictionary of parameters to be built. |
Definition at line 1243 of file SGObject.cpp.
void build_values | ( | float64_t | min, |
float64_t | max, | ||
ERangeType | type, | ||
float64_t | step = 1.0 , |
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float64_t | type_base = 2.0 |
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float64_t wrapper for build_values()
Definition at line 106 of file ModelSelectionParameters.cpp.
void build_values | ( | int32_t | min, |
int32_t | max, | ||
ERangeType | type, | ||
int32_t | step = 1 , |
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int32_t | type_base = 2 |
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) |
int32_t wrapper for build_values()
Definition at line 130 of file ModelSelectionParameters.cpp.
void build_values_sgvector | ( | float64_t | min, |
float64_t | max, | ||
ERangeType | type, | ||
void * | vector, | ||
float64_t | step = 1.0 , |
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float64_t | type_base = 2.0 |
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) |
Definition at line 122 of file ModelSelectionParameters.cpp.
void build_values_sgvector | ( | int32_t | min, |
int32_t | max, | ||
ERangeType | type, | ||
void * | vector, | ||
int32_t | step = 1 , |
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int32_t | type_base = 2 |
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) |
Definition at line 146 of file ModelSelectionParameters.cpp.
void build_values_vector | ( | float64_t | min, |
float64_t | max, | ||
ERangeType | type, | ||
void * | vector, | ||
index_t * | size, | ||
float64_t | step = 1.0 , |
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float64_t | type_base = 2.0 |
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) |
Definition at line 113 of file ModelSelectionParameters.cpp.
void build_values_vector | ( | int32_t | min, |
int32_t | max, | ||
ERangeType | type, | ||
void * | vector, | ||
index_t * | size, | ||
int32_t | step = 1 , |
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int32_t | type_base = 2 |
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) |
Definition at line 137 of file ModelSelectionParameters.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 1360 of file SGObject.cpp.
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virtualinherited |
A deep copy. All the instance variables will also be copied.
Definition at line 200 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 1264 of file SGObject.cpp.
CDynamicObjectArray * get_combinations | ( | index_t | prefix_num = 1 | ) |
most important method. If the tree was regarding node types and structure, a set of trees which contain all combinations of parameters that are implied by this tree is generated.
prefix_num | a number of tabs that is put before each output to have a more readable print layout |
Definition at line 350 of file ModelSelectionParameters.cpp.
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inherited |
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inherited |
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inherited |
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inherited |
Definition at line 1135 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 1159 of file SGObject.cpp.
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inherited |
Returns index of model selection parameter with provided index
param_name | name of model selection parameter |
Definition at line 1172 of file SGObject.cpp.
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virtual |
Implements CSGObject.
Definition at line 161 of file ModelSelectionParameters.h.
CParameterCombination * get_single_combination | ( | bool | rand = true | ) |
Instead of generating an array of combinations, get_single_combination generates a single combination of parameters. The choice of values is constrained by the value arrays built by build_values. The choice of values may be random. If not, the lowest possible values are chosen.
rand | Is our choice random? |
Definition at line 207 of file ModelSelectionParameters.cpp.
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protected |
checks if this node has children
Definition at line 181 of file ModelSelectionParameters.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 297 of file SGObject.cpp.
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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)
file_version | parameter version of the file |
current_version | version from which mapping begins (you want to use Version::get_version_parameter() for this in most cases) |
file | file to load from |
prefix | prefix for members |
Definition at line 704 of file SGObject.cpp.
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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
param_info | information of parameter |
file_version | parameter version of the file, must be <= provided parameter version |
file | file to load from |
prefix | prefix for members |
Definition at line 545 of file SGObject.cpp.
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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 |
param_version | (optional) a parameter version different to (this is mainly for testing, better do not use) |
Definition at line 374 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 1062 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 1057 of file SGObject.cpp.
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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
param_base | set of TParameter instances that are mapped to the provided target parameter infos |
base_version | version of the parameter base |
target_param_infos | set of SGParamInfo instances that specify the target parameter base |
Definition at line 742 of file SGObject.cpp.
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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
param_base | set of TParameter instances to use for migration |
target | parameter info for the resulting TParameter |
Definition at line 949 of file SGObject.cpp.
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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)
param_base | set of TParameter instances to use for migration |
target | parameter info for the resulting TParameter |
replacement | (used as output) here the TParameter instance which is returned by migration is created into |
to_migrate | the only source that is used for migration |
old_name | with this parameter, a name change may be specified |
Definition at line 889 of file SGObject.cpp.
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virtualinherited |
Definition at line 263 of file SGObject.cpp.
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inherited |
prints all parameter registered for model selection and their type
Definition at line 1111 of file SGObject.cpp.
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virtualinherited |
prints registered parameters out
prefix | prefix for members |
Definition at line 309 of file SGObject.cpp.
void print_tree | ( | int | prefix_num = 0 | ) |
SG_PRINT's the tree of which this node is the base
prefix_num | a number of tabs that is put before each output to have a more readable print layout |
Definition at line 623 of file ModelSelectionParameters.cpp.
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virtualinherited |
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 |
param_version | (optional) a parameter version different to (this is mainly for testing, better do not use) |
Definition at line 315 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 1072 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 1067 of file SGObject.cpp.
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inherited |
Definition at line 42 of file SGObject.cpp.
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Definition at line 47 of file SGObject.cpp.
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inherited |
Definition at line 52 of file SGObject.cpp.
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Definition at line 57 of file SGObject.cpp.
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Definition at line 62 of file SGObject.cpp.
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Definition at line 67 of file SGObject.cpp.
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Definition at line 72 of file SGObject.cpp.
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Definition at line 77 of file SGObject.cpp.
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Definition at line 82 of file SGObject.cpp.
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inherited |
Definition at line 87 of file SGObject.cpp.
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Definition at line 92 of file SGObject.cpp.
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Definition at line 97 of file SGObject.cpp.
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Definition at line 102 of file SGObject.cpp.
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Definition at line 107 of file SGObject.cpp.
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Definition at line 112 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 243 of file SGObject.cpp.
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set the version object
version | version object to use |
Definition at line 284 of file SGObject.cpp.
void set_values | ( | const SGVector< T > & | values, |
EMSParamType | value_type | ||
) |
setter for values of this node. If the latter are not possible to be produced by set_range, a vector may be specified directly.
values | value vector. no ref counting takes place here |
value_type | type of the provided vector |
Definition at line 96 of file ModelSelectionParameters.cpp.
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virtualinherited |
A shallow copy. All the SGObject instance variables will be simply assigned and SG_REF-ed.
Reimplemented in CGaussianKernel.
Definition at line 194 of file SGObject.cpp.
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inherited |
unset generic type
this has to be called in classes specializing a template class
Definition at line 304 of file SGObject.cpp.
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Updates the hash of current parameter combination
Definition at line 250 of file SGObject.cpp.
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io
Definition at line 496 of file SGObject.h.
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parameters wrt which we can compute gradients
Definition at line 511 of file SGObject.h.
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Hash of parameter values
Definition at line 517 of file SGObject.h.
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model selection parameters
Definition at line 508 of file SGObject.h.
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map for different parameter versions
Definition at line 514 of file SGObject.h.
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parameters
Definition at line 505 of file SGObject.h.
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parallel
Definition at line 499 of file SGObject.h.
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version
Definition at line 502 of file SGObject.h.