ngram_model_s Struct Reference

Common implementation of ngram_model_t. More...

#include <ngram_model_internal.h>


Data Fields

int refcount
 Reference count.
int32 * n_counts
 Counts for 1, 2, 3, .
int32 n_1g_alloc
 Number of allocated word strings (for new word addition).
int32 n_words
 Number of actual word strings (NOT the same as the number of unigrams, due to class words).
uint8 n
 This is an n-gram model (1, 2, 3, .
uint8 n_classes
 Number of classes (maximum 128).
uint8 writable
 Are word strings writable?
uint8 flags
 Any other flags we might care about (FIXME: Merge this and writable).
logmath_tlmath
 Log-math object.
float32 lw
 Language model scaling factor.
int32 log_wip
 Log of word insertion penalty.
int32 log_uw
 Log of unigram weight.
int32 log_uniform
 Log of uniform (0-gram) probability.
int32 log_uniform_weight
 Log of uniform weight (i.e.
int32 log_zero
 Zero probability, cached here for quick lookup.
char ** word_str
 Unigram names.
hash_table_t * wid
 Mapping of unigram names to word IDs.
struct ngram_class_s ** classes
 Word class definitions.
struct ngram_funcs_sfuncs
 Implementation-specific methods.


Detailed Description

Common implementation of ngram_model_t.

The details of bigram, trigram, and higher-order N-gram storage, if any, can vary somewhat depending on the file format in use.

Definition at line 55 of file ngram_model_internal.h.


Field Documentation

Word class definitions.

Definition at line 75 of file ngram_model_internal.h.

Referenced by ngram_model_add_class(), ngram_model_add_class_word(), ngram_model_free(), ngram_ng_prob(), and ngram_ng_score().

Implementation-specific methods.

Definition at line 76 of file ngram_model_internal.h.

Referenced by ngram_model_add_word(), ngram_model_apply_weights(), ngram_model_flush(), ngram_model_free(), ngram_ng_prob(), and ngram_ng_score().

Log of uniform weight (i.e.

1 - unigram weight)

Definition at line 71 of file ngram_model_internal.h.

This is an n-gram model (1, 2, 3, .

..).

Definition at line 61 of file ngram_model_internal.h.

Referenced by ngram_model_get_size(), ngram_model_set_add(), and ngram_model_set_init().

Counts for 1, 2, 3, .

.. grams

Definition at line 57 of file ngram_model_internal.h.

Referenced by ngram_model_free(), and ngram_model_get_counts().

Number of actual word strings (NOT the same as the number of unigrams, due to class words).

Definition at line 59 of file ngram_model_internal.h.

Referenced by ngram_model_free(), ngram_model_set_add(), ngram_model_set_current_wid(), ngram_model_set_known_wid(), ngram_model_set_map_words(), ngram_model_set_remove(), and ngram_word().

hash_table_t* ngram_model_s::wid

Mapping of unigram names to word IDs.

Definition at line 74 of file ngram_model_internal.h.

Referenced by ngram_model_free(), ngram_model_set_map_words(), ngram_unknown_wid(), and ngram_wid().


The documentation for this struct was generated from the following file:

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