def train(factrueval2016_devset_dir: str, split_by_paragraphs: bool,
elmo_will_be_tuned: bool, max_epochs: int, batch_size: int,
lr: float, gpu_memory_frac: float, model_name: str) -> ELMo_NER:
if os.path.isfile(model_name):
with open(model_name, 'rb') as fp:
recognizer = pickle.load(fp)
assert isinstance(recognizer, ELMo_NER)
print('The NER has been successfully loaded from the file `{0}`...'.
format(model_name))
print('')
else:
temp_json_name = tempfile.NamedTemporaryFile(mode='w').name
try:
factrueval2016_to_json(factrueval2016_devset_dir, temp_json_name,
split_by_paragraphs)
X, y = load_dataset(temp_json_name)
finally:
if os.path.isfile(temp_json_name):
os.remove(temp_json_name)
print('Data for training have been loaded...')
print('Number of samples is {0}.'.format(len(y)))
print('')
max_number_of_tokens = 0
tokenizer = NISTTokenizer()
for cur in X:
n_tokens = len(tokenizer.international_tokenize(cur))
if n_tokens > max_number_of_tokens:
max_number_of_tokens = n_tokens
del tokenizer
print('Maximal number of tokens is {0}.'.format(max_number_of_tokens))
n_tokens = 2
while n_tokens < max_number_of_tokens:
n_tokens *= 2
elmo_hub_module_handle = 'http://files.deeppavlov.ai/deeppavlov_data/elmo_ru-news_wmt11-16_1.5M_steps.tar.gz'
recognizer = ELMo_NER(finetune_elmo=elmo_will_be_tuned,
batch_size=batch_size,
l2_reg=1e-3,
max_seq_length=n_tokens,
elmo_hub_module_handle=elmo_hub_module_handle,
validation_fraction=0.25,
max_epochs=max_epochs,
patience=5,
gpu_memory_frac=gpu_memory_frac,
verbose=True,
random_seed=42,
lr=lr)
recognizer.fit(X, y)
with open(model_name, 'wb') as fp:
pickle.dump(recognizer, fp)
print('')
print(
'The NER has been successfully fitted and saved into the file `{0}`...'
.format(model_name))
print('')
return recognizer
def recognize(factrueval2016_testset_dir: str, split_by_paragraphs: bool,
recognizer: ELMo_NER, results_dir: str):
temp_json_name = tempfile.NamedTemporaryFile(mode='w').name
try:
factrueval2016_to_json(factrueval2016_testset_dir, temp_json_name,
split_by_paragraphs)
with codecs.open(temp_json_name,
mode='r',
encoding='utf-8',
errors='ignore') as fp:
data_for_testing = json.load(fp)
_, true_entities = load_dataset(temp_json_name)
finally:
if os.path.isfile(temp_json_name):
os.remove(temp_json_name)
texts = []
additional_info = []
for cur_document in data_for_testing:
base_name = os.path.join(results_dir,
cur_document['base_name'] + '.task1')
for cur_paragraph in cur_document['paragraph_bounds']:
texts.append(
cur_document['text'][cur_paragraph[0]:cur_paragraph[1]])
additional_info.append((base_name, cur_paragraph))
print('Data for final testing have been loaded...')
print('Number of samples is {0}.'.format(len(true_entities)))
print('')
predicted_entities = recognizer.predict(texts)
assert len(predicted_entities) == len(true_entities)
f1, precision, recall, quality_by_entities = calculate_prediction_quality(
true_entities, predicted_entities, recognizer.classes_list_)
print('All entities:')
print(' F1-score is {0:.2%}.'.format(f1))
print(' Precision is {0:.2%}.'.format(precision))
print(' Recall is {0:.2%}.'.format(recall))
for ne_type in sorted(list(quality_by_entities.keys())):
print(' {0}'.format(ne_type))
print(' F1-score is {0:.2%}.'.format(
quality_by_entities[ne_type][0]))
print(' Precision is {0:.2%}.'.format(
quality_by_entities[ne_type][1]))
print(' Recall is {0:.2%}.'.format(quality_by_entities[ne_type][2]))
results_for_factrueval_2016 = dict()
for sample_idx, cur_result in enumerate(predicted_entities):
base_name, paragraph_bounds = additional_info[sample_idx]
for entity_type in cur_result:
if entity_type == 'ORG':
prepared_entity_type = 'org'
elif entity_type == 'PERSON':
prepared_entity_type = 'per'
elif entity_type == 'LOCATION':
prepared_entity_type = 'loc'
else:
prepared_entity_type = None
if prepared_entity_type is None:
raise ValueError(
'`{0}` is unknown entity type!'.format(entity_type))
for entity_bounds in cur_result[entity_type]:
postprocessed_entity = (prepared_entity_type,
entity_bounds[0] + paragraph_bounds[0],
entity_bounds[1] - entity_bounds[0])
if base_name in results_for_factrueval_2016:
results_for_factrueval_2016[base_name].append(
postprocessed_entity)
else:
results_for_factrueval_2016[base_name] = [
postprocessed_entity
]
for base_name in results_for_factrueval_2016:
with codecs.open(base_name,
mode='w',
encoding='utf-8',
errors='ignore') as fp:
for cur_entity in sorted(results_for_factrueval_2016[base_name],
key=lambda it: (it[1], it[2], it[0])):
fp.write('{0} {1} {2}\n'.format(cur_entity[0], cur_entity[1],
cur_entity[2]))
def train(factrueval2016_devset_dir: str,
split_by_paragraphs: bool,
elmo_will_be_tuned: bool,
use_additional_features: bool,
max_epochs: int,
patience: int,
batch_size: int,
lr: float,
l2: float,
gpu_memory_frac: float,
model_name: str,
collection3_dir: Union[str, None] = None) -> ELMo_NER:
if os.path.isfile(model_name):
with open(model_name, 'rb') as fp:
recognizer = pickle.load(fp)
assert isinstance(recognizer, ELMo_NER)
print('The NER has been successfully loaded from the file `{0}`...'.
format(model_name))
print('')
else:
temp_json_name = tempfile.NamedTemporaryFile(mode='w').name
try:
factrueval2016_to_json(factrueval2016_devset_dir, temp_json_name,
split_by_paragraphs)
X, y = load_dataset_from_json(temp_json_name)
finally:
if os.path.isfile(temp_json_name):
os.remove(temp_json_name)
print('The FactRuEval-2016 data for training have been loaded...')
print('Number of samples is {0}.'.format(len(y)))
print('')
max_number_of_tokens = 0
pipeline = create_udpipe_pipeline('ru')
for cur in X:
spacy_doc = pipeline(cur)
n_tokens = 0
for _ in spacy_doc:
n_tokens += 1
del spacy_doc
if n_tokens > max_number_of_tokens:
max_number_of_tokens = n_tokens
del pipeline
print('Maximal number of tokens is {0}.'.format(max_number_of_tokens))
n_tokens = 2
while n_tokens < max_number_of_tokens:
n_tokens *= 2
elmo_hub_module_handle = 'http://files.deeppavlov.ai/deeppavlov_data/elmo_ru-news_wmt11-16_1.5M_steps.tar.gz'
recognizer = ELMo_NER(finetune_elmo=elmo_will_be_tuned,
batch_size=batch_size,
l2_reg=l2,
max_seq_length=n_tokens,
elmo_hub_module_handle=elmo_hub_module_handle,
validation_fraction=0.25,
max_epochs=max_epochs,
patience=patience,
gpu_memory_frac=gpu_memory_frac,
verbose=True,
random_seed=42,
lr=lr,
udpipe_lang='ru',
use_additional_features=use_additional_features)
if collection3_dir is None:
recognizer.fit(X, y)
else:
X_train, y_train = load_dataset_from_brat(collection3_dir,
split_by_paragraphs=True)
if not split_by_paragraphs:
X_train, y_train = divide_dataset_by_sentences(
X_train, y_train, sent_tokenize_func=ru_sent_tokenize)
for sample_idx in range(len(y_train)):
new_y_sample = dict()
for ne_type in sorted(list(y_train[sample_idx].keys())):
if ne_type == 'PER':
new_y_sample['PERSON'] = y_train[sample_idx][ne_type]
elif ne_type == 'LOC':
new_y_sample['LOCATION'] = y_train[sample_idx][ne_type]
else:
new_y_sample[ne_type] = y_train[sample_idx][ne_type]
y_train[sample_idx] = new_y_sample
del new_y_sample
print('The Collection3 data for training have been loaded...')
print('Number of samples is {0}.'.format(len(y_train)))
print('')
recognizer.fit(X_train, y_train, validation_data=(X, y))
with open(model_name, 'wb') as fp:
pickle.dump(recognizer, fp)
print('')
print(
'The NER has been successfully fitted and saved into the file `{0}`...'
.format(model_name))
print('')
return recognizer