def load_dict(path, gramtab_format='opencorpora-int'):
"""
Load pymorphy2 dictionary.
``path`` is a folder name with dictionary data.
"""
_f = lambda p: os.path.join(path, p)
meta = _load_meta(_f('meta.json'))
_assert_format_is_compatible(meta, path)
Tag = _load_tag_class(gramtab_format, _f('grammemes.json'))
str_gramtab = _load_gramtab(meta, gramtab_format, path)
gramtab = [Tag(tag_str) for tag_str in str_gramtab]
suffixes = json_read(_f('suffixes.json'))
paradigm_prefixes = json_read(_f('paradigm-prefixes.json'))
paradigms = _load_paradigms(_f('paradigms.array'))
words = dawg.WordsDawg().load(_f('words.dawg'))
prediction_prefixes = dawg.DAWG().load(_f('prediction-prefixes.dawg'))
prediction_suffixes_dawgs = []
for prefix_id in range(len(paradigm_prefixes)):
fn = _f('prediction-suffixes-%s.dawg' % prefix_id)
assert os.path.exists(fn)
prediction_suffixes_dawgs.append(dawg.PredictionSuffixesDAWG().load(fn))
return LoadedDictionary(meta, gramtab, suffixes, paradigms, words,
prediction_prefixes, prediction_suffixes_dawgs,
Tag, paradigm_prefixes)
def estimate_tag_cpd(corpus_filename,
out_path,
min_word_freq,
update_meta=True):
from pymorphy2.opencorpora_dict.probability import (
estimate_conditional_tag_probability, build_cpd_dawg)
m = pymorphy2.MorphAnalyzer(out_path, probability_estimator_cls=None)
logger.info("Estimating P(t|w) from %s" % corpus_filename)
cpd, cfd = estimate_conditional_tag_probability(m, corpus_filename)
logger.info("Encoding P(t|w) as DAWG")
d = build_cpd_dawg(m, cpd, int(min_word_freq))
dawg_filename = os.path.join(out_path, 'p_t_given_w.intdawg')
d.save(dawg_filename)
if update_meta:
logger.info("Updating meta information")
meta_filename = os.path.join(out_path, 'meta.json')
meta = json_read(meta_filename)
meta.extend([
('P(t|w)', True),
('P(t|w)_unique_words', len(cpd.conditions())),
('P(t|w)_outcomes', cfd.N()),
('P(t|w)_min_word_freq', int(min_word_freq)),
])
json_write(meta_filename, meta)
logger.info('\nDone.')
def estimate_tag_cpd(corpus_filename, out_path, min_word_freq, update_meta=True):
from pymorphy2.opencorpora_dict.probability import (
estimate_conditional_tag_probability, build_cpd_dawg)
m = pymorphy2.MorphAnalyzer(out_path, probability_estimator_cls=None)
logger.info("Estimating P(t|w) from %s" % corpus_filename)
cpd, cfd = estimate_conditional_tag_probability(m, corpus_filename)
logger.info("Encoding P(t|w) as DAWG")
d = build_cpd_dawg(m, cpd, int(min_word_freq))
dawg_filename = os.path.join(out_path, 'p_t_given_w.intdawg')
d.save(dawg_filename)
if update_meta:
logger.info("Updating meta information")
meta_filename = os.path.join(out_path, 'meta.json')
meta = json_read(meta_filename)
meta.extend([
('P(t|w)', True),
('P(t|w)_unique_words', len(cpd.conditions())),
('P(t|w)_outcomes', cfd.N()),
('P(t|w)_min_word_freq', int(min_word_freq)),
])
json_write(meta_filename, meta)
logger.info('\nDone.')
def _load_gramtab(meta, gramtab_format, path):
""" Load gramtab (a list of tags) """
gramtab_formats = meta.get('gramtab_formats', {})
if gramtab_format not in gramtab_formats:
raise ValueError("This gramtab format (%s) is unavailable; available formats: %s" % (gramtab_format, gramtab_formats.keys()))
gramtab_filename = os.path.join(path, gramtab_formats[gramtab_format])
return json_read(gramtab_filename)
def _load_gramtab(meta, gramtab_format, path):
""" Load gramtab (a list of tags) """
gramtab_formats = meta.get('gramtab_formats', {})
if gramtab_format not in gramtab_formats:
raise ValueError("This gramtab format (%s) is unavailable; available formats: %s" % (gramtab_format, gramtab_formats.keys()))
gramtab_filename = os.path.join(path, gramtab_formats[gramtab_format])
return json_read(gramtab_filename)
def _load_tag_class(gramtab_format, grammemes_filename):
""" Load and initialize Tag class (according to ``gramtab_format``). """
if gramtab_format not in tagset.registry:
raise ValueError("This gramtab format ('%s') is unsupported." % gramtab_format)
# FIXME: clone the class
Tag = tagset.registry[gramtab_format] #._clone_class()
grammemes = json_read(grammemes_filename)
Tag._init_grammemes(grammemes)
return Tag
def _load_tag_class(gramtab_format, grammemes_filename):
""" Load and initialize Tag class (according to ``gramtab_format``). """
if gramtab_format not in tagset.registry:
raise ValueError("This gramtab format ('%s') is unsupported." %
gramtab_format)
# FIXME: clone the class
Tag = tagset.registry[gramtab_format] #._clone_class()
grammemes = json_read(grammemes_filename)
Tag._init_grammemes(grammemes)
return Tag
def _load_tag_class(gramtab_format, grammemes_filename):
""" Load and initialize Tag class (according to ``gramtab_format``). """
if gramtab_format not in tagset.registry:
raise ValueError("This gramtab format ('%s') is unsupported." % gramtab_format)
grammemes = json_read(grammemes_filename)
Tag = tagset.registry[gramtab_format]
# FIXME: clone the class
# Tag = type(Tag.__name__, (Tag,), {
# 'KNOWN_GRAMMEMES': Tag.KNOWN_GRAMMEMES.copy(),
# })
Tag._init_grammemes(grammemes)
return Tag
def _load_meta(filename):
""" Load metadata. """
meta = json_read(filename, parse_float=str)
if hasattr(collections, 'OrderedDict'):
return collections.OrderedDict(meta)
return dict(meta)
