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SHOGUN
4.1.0
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Class CVwEnvironment is the environment used by VW.
Contains global constants and settings which change the behaviour of Vowpal Wabbit.
It is used while parsing input, and also while learning.
One CVwEnvironment object should be bound to the CStreamingVwFile or CStreamingVwCacheFile, and the pointer to it propagated upwards to CStreamingVwFeatures and finally to CVowpalWabbit.
在文件 VwEnvironment.h 第 41 行定义.
Public 成员函数 | |
| CVwEnvironment () | |
| virtual | ~CVwEnvironment () |
| void | set_num_bits (vw_size_t bits) |
| vw_size_t | get_num_bits () |
| void | set_mask (vw_size_t m) |
| vw_size_t | get_mask () |
| float64_t | get_min_label () |
| float64_t | get_max_label () |
| vw_size_t | num_threads () |
| vw_size_t | length () |
| void | set_stride (vw_size_t new_stride) |
| virtual const char * | get_name () const |
| 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 | |
| vw_size_t | num_bits |
| log_2 of the number of features 更多... | |
| vw_size_t | thread_bits |
| log_2 of the number of threads 更多... | |
| vw_size_t | mask |
| Mask used for hashing. 更多... | |
| vw_size_t | thread_mask |
| Mask used by regressor for learning. 更多... | |
| vw_size_t | stride |
| Number of elements in weight vector per feature. 更多... | |
| float64_t | min_label |
| Smallest label seen. 更多... | |
| float64_t | max_label |
| Largest label seen. 更多... | |
| float32_t | eta |
| Learning rate. 更多... | |
| float32_t | eta_decay_rate |
| Decay rate of eta per pass. 更多... | |
| bool | adaptive |
| Whether adaptive learning is used. 更多... | |
| bool | exact_adaptive_norm |
| Whether exact norm is used for adaptive learning. 更多... | |
| float32_t | l1_regularization |
| Level of L1 regularization. 更多... | |
| bool | random_weights |
| Whether to use random weights. 更多... | |
| float32_t | initial_weight |
| Initial value of all elements in weight vector. 更多... | |
| float32_t | update_sum |
| Sum of updates. 更多... | |
| float32_t | t |
| Value of t. 更多... | |
| float64_t | initial_t |
| Initial value of t. 更多... | |
| float32_t | power_t |
| t power value while updating 更多... | |
| int64_t | example_number |
| Example number. 更多... | |
| float64_t | weighted_examples |
| Weighted examples. 更多... | |
| float64_t | weighted_unlabeled_examples |
| Weighted unlabelled examples. 更多... | |
| float64_t | weighted_labels |
| Weighted labels. 更多... | |
| vw_size_t | total_features |
| Total number of features. 更多... | |
| float64_t | sum_loss |
| Sum of losses. 更多... | |
| vw_size_t | passes_complete |
| Number of passes complete. 更多... | |
| vw_size_t | num_passes |
| Number of passes. 更多... | |
| vw_size_t | ngram |
| ngrams to generate 更多... | |
| vw_size_t | skips |
| Skips in ngrams. 更多... | |
| bool | ignore_some |
| Whether some namespaces are ignored. 更多... | |
| bool | ignore [256] |
| Which namespaces to ignore. 更多... | |
| DynArray< char * > | pairs |
| Pairs of features to cross for quadratic updates. 更多... | |
| const char * | vw_version |
| VW version. 更多... | |
| vw_size_t | v_length |
| Length of version string. 更多... | |
| 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) |
| CVwEnvironment | ( | ) |
Default constructor Should initialize with reasonable default values
在文件 VwEnvironment.cpp 第 19 行定义.
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virtual |
Destructor
在文件 VwEnvironment.h 第 53 行定义.
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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. |
在文件 SGObject.cpp 第 597 行定义.
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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.
在文件 SGObject.cpp 第 714 行定义.
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virtualinherited |
A deep copy. All the instance variables will also be copied.
在文件 SGObject.cpp 第 198 行定义.
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) |
在文件 SGObject.cpp 第 618 行定义.
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inherited |
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inherited |
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inherited |
| vw_size_t get_mask | ( | ) |
| float64_t get_max_label | ( | ) |
| float64_t get_min_label | ( | ) |
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inherited |
在文件 SGObject.cpp 第 498 行定义.
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inherited |
Returns description of a given parameter string, if it exists. SG_ERROR otherwise
| param_name | name of the parameter |
在文件 SGObject.cpp 第 522 行定义.
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inherited |
Returns index of model selection parameter with provided index
| param_name | name of model selection parameter |
在文件 SGObject.cpp 第 535 行定义.
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virtual |
| vw_size_t get_num_bits | ( | ) |
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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 |
在文件 SGObject.cpp 第 296 行定义.
| vw_size_t length | ( | ) |
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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 |
在文件 SGObject.cpp 第 369 行定义.
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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. |
被 CKernel, CWeightedDegreePositionStringKernel, CList, CAlphabet, CLinearHMM, CGaussianKernel, CInverseMultiQuadricKernel, CCircularKernel , 以及 CExponentialKernel 重载.
在文件 SGObject.cpp 第 426 行定义.
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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. |
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.
| vw_size_t num_threads | ( | ) |
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virtualinherited |
在文件 SGObject.cpp 第 262 行定义.
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inherited |
prints all parameter registered for model selection and their type
在文件 SGObject.cpp 第 474 行定义.
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virtualinherited |
|
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 |
在文件 SGObject.cpp 第 314 行定义.
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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. |
被 CKernel 重载.
在文件 SGObject.cpp 第 436 行定义.
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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. |
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.
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inherited |
在文件 SGObject.cpp 第 41 行定义.
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inherited |
在文件 SGObject.cpp 第 46 行定义.
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inherited |
在文件 SGObject.cpp 第 51 行定义.
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inherited |
在文件 SGObject.cpp 第 56 行定义.
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inherited |
在文件 SGObject.cpp 第 61 行定义.
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inherited |
在文件 SGObject.cpp 第 66 行定义.
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inherited |
在文件 SGObject.cpp 第 71 行定义.
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inherited |
在文件 SGObject.cpp 第 76 行定义.
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inherited |
在文件 SGObject.cpp 第 81 行定义.
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inherited |
在文件 SGObject.cpp 第 86 行定义.
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inherited |
在文件 SGObject.cpp 第 91 行定义.
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inherited |
在文件 SGObject.cpp 第 96 行定义.
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inherited |
在文件 SGObject.cpp 第 101 行定义.
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inherited |
在文件 SGObject.cpp 第 106 行定义.
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inherited |
在文件 SGObject.cpp 第 111 行定义.
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inherited |
set generic type to T
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inherited |
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inherited |
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inherited |
| void set_mask | ( | vw_size_t | m | ) |
| void set_num_bits | ( | vw_size_t | bits | ) |
| void set_stride | ( | vw_size_t | new_stride | ) |
Set a new stride value. Also changes thread_mask.
| new_stride | new value of stride |
在文件 VwEnvironment.cpp 第 69 行定义.
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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.
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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.
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virtualinherited |
Updates the hash of current parameter combination
在文件 SGObject.cpp 第 248 行定义.
| bool adaptive |
Whether adaptive learning is used.
在文件 VwEnvironment.h 第 147 行定义.
| float32_t eta |
Learning rate.
在文件 VwEnvironment.h 第 142 行定义.
| float32_t eta_decay_rate |
Decay rate of eta per pass.
在文件 VwEnvironment.h 第 144 行定义.
| bool exact_adaptive_norm |
Whether exact norm is used for adaptive learning.
在文件 VwEnvironment.h 第 149 行定义.
| int64_t example_number |
Example number.
在文件 VwEnvironment.h 第 169 行定义.
| bool ignore[256] |
Which namespaces to ignore.
在文件 VwEnvironment.h 第 193 行定义.
| bool ignore_some |
Whether some namespaces are ignored.
在文件 VwEnvironment.h 第 191 行定义.
| float64_t initial_t |
Initial value of t.
在文件 VwEnvironment.h 第 164 行定义.
| float32_t initial_weight |
Initial value of all elements in weight vector.
在文件 VwEnvironment.h 第 156 行定义.
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inherited |
io
在文件 SGObject.h 第 369 行定义.
| float32_t l1_regularization |
Level of L1 regularization.
在文件 VwEnvironment.h 第 151 行定义.
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inherited |
parameters wrt which we can compute gradients
在文件 SGObject.h 第 384 行定义.
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inherited |
Hash of parameter values
在文件 SGObject.h 第 387 行定义.
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inherited |
model selection parameters
在文件 SGObject.h 第 381 行定义.
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inherited |
parameters
在文件 SGObject.h 第 378 行定义.
| vw_size_t mask |
Mask used for hashing.
在文件 VwEnvironment.h 第 130 行定义.
| float64_t max_label |
Largest label seen.
在文件 VwEnvironment.h 第 139 行定义.
| float64_t min_label |
Smallest label seen.
在文件 VwEnvironment.h 第 137 行定义.
| vw_size_t ngram |
ngrams to generate
在文件 VwEnvironment.h 第 186 行定义.
| vw_size_t num_bits |
log_2 of the number of features
在文件 VwEnvironment.h 第 126 行定义.
| vw_size_t num_passes |
Number of passes.
在文件 VwEnvironment.h 第 183 行定义.
| DynArray<char*> pairs |
Pairs of features to cross for quadratic updates.
在文件 VwEnvironment.h 第 196 行定义.
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inherited |
parallel
在文件 SGObject.h 第 372 行定义.
| vw_size_t passes_complete |
Number of passes complete.
在文件 VwEnvironment.h 第 181 行定义.
| float32_t power_t |
t power value while updating
在文件 VwEnvironment.h 第 166 行定义.
| bool random_weights |
Whether to use random weights.
在文件 VwEnvironment.h 第 154 行定义.
| vw_size_t skips |
Skips in ngrams.
在文件 VwEnvironment.h 第 188 行定义.
| vw_size_t stride |
Number of elements in weight vector per feature.
在文件 VwEnvironment.h 第 134 行定义.
| float64_t sum_loss |
Sum of losses.
在文件 VwEnvironment.h 第 179 行定义.
Value of t.
在文件 VwEnvironment.h 第 162 行定义.
| vw_size_t thread_bits |
log_2 of the number of threads
在文件 VwEnvironment.h 第 128 行定义.
| vw_size_t thread_mask |
Mask used by regressor for learning.
在文件 VwEnvironment.h 第 132 行定义.
| vw_size_t total_features |
Total number of features.
在文件 VwEnvironment.h 第 177 行定义.
| float32_t update_sum |
Sum of updates.
在文件 VwEnvironment.h 第 159 行定义.
| vw_size_t v_length |
Length of version string.
在文件 VwEnvironment.h 第 201 行定义.
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inherited |
version
在文件 SGObject.h 第 375 行定义.
| const char* vw_version |
VW version.
在文件 VwEnvironment.h 第 199 行定义.
| float64_t weighted_examples |
Weighted examples.
在文件 VwEnvironment.h 第 171 行定义.
| float64_t weighted_labels |
Weighted labels.
在文件 VwEnvironment.h 第 175 行定义.
| float64_t weighted_unlabeled_examples |
Weighted unlabelled examples.
在文件 VwEnvironment.h 第 173 行定义.
