def try_extract(self, _, future):
"""Try to find an address."""
if not (future[0].word[0].isupper() or future[0].word[0].isdigit()):
return None
ent = AddressEntity('', future[0].position)
ok, idx = self.try_street(future, 0)
if not ok:
self.debug('Abort: no street')
return None
ent.attrs['ner:addr:street'] = join_tokens(future[:idx])[1]
ok, idx = self.try_house_number(future, ent, idx)
if not ok:
self.debug('Missing house number')
return None
if future[idx].word == ',':
self.debug('Found optional comma')
idx += 1
if future[idx].typ == Token.ZIP_CODE:
ent.attrs['ner:addr:zip_code'] = future[idx].word
idx += 1
else:
self.debug('Missing zip code')
old_idx = idx
ok, idx = self.try_town(future, idx)
if not ok:
self.debug('Abort: no town')
return None
ent.attrs['ner:addr:town'] = join_tokens(future[old_idx:idx])[1]
found_comma = False
if future[idx].word == ',':
self.debug('Found comma after town')
found_comma = True
idx += 1
old_idx = idx
ok, idx = self.try_country(future, idx)
if not ok:
self.debug('No country')
if found_comma:
idx -= 1
else:
ent.attrs['ner:addr:country'] = join_tokens(future[old_idx:idx])[1]
tokens = future.popmany(idx)
ent.whitespace, ent.word = join_tokens(tokens)
return ent
def try_extract(self, _, future):
"""Check if future starts with non-Czech phrase."""
if not future[0].word[0].isalpha():
return None
max_len = 0
max_lang = None
for lang in self.words.keys():
self.debug('Trying %s starting from %s', lang, future[0].word)
length = self.try_lang(lang, future)
if length > max_len:
max_len = length
max_lang = lang
if max_len < 2:
self.debug('Ignore short case')
return None
if max([len(future[i].word) for i in range(0, max_len)]) < LIMIT:
self.debug('Too short words')
return None
tokens = future.popmany(max_len)
whitespace, text = join_tokens(tokens)
ent = LanguageEntity(text, max_lang, tokens[0].position)
ent.whitespace = whitespace
return ent
def read_docs(phase='starting_spans'):
pmid_groups = {}
for g in GROUPS:
pmids = utils.readlines(
os.path.join(config.EBM_NLP_DIR, 'pmids_{}.txt'.format(g)))
for pmid in pmids:
pmid_groups[pmid] = g
def get_e_fname(pmid, e):
if pmid_groups[pmid] == 'test':
subdir = os.path.join('test', 'gold')
else:
subdir = 'train'
f = '{}.AGGREGATED.ann'.format(pmid)
return os.path.join(config.EBM_NLP_DIR, 'annotations', 'aggregated',
phase, e, subdir, f)
docs = []
for pmid, group in pmid_groups.items():
tokens = utils.readlines(
os.path.join(config.EBM_NLP_DIR, 'documents',
'{}.tokens'.format(pmid)))
text, token_offsets = utils.join_tokens(tokens)
doc = classes.Doc(pmid, text)
doc.group = group
for e in ['participants', 'interventions', 'outcomes']:
label_name = 'GOLD_{}'.format(e[0])
labels = [int(l) for l in utils.readlines(get_e_fname(pmid, e))]
for token_i, token_f, l in utils.condense_labels(labels):
char_i = token_offsets[token_i][0]
char_f = token_offsets[token_f - 1][1]
doc.labels[label_name].append(
classes.Span(char_i, char_f, text[char_i:char_f]))
docs.append(doc)
return docs
def try_house_number(self, future, ent, idx):
"""
Try to recognise house number, optionally with orientation number.
"""
if not is_number(future[idx].word):
return False, idx
if future[idx + 1].word == '/' and is_number(future[idx + 2].word):
_, num = join_tokens(future[idx:idx + 3])
ent.attrs['ner:addr:house'] = num
return True, idx + 3
self.debug('Found house number <%s>', future[idx].word)
ent.attrs['ner:addr:house'] = future[idx].word
return True, idx + 1
def try_town(self, future, idx):
"""
Try to extract town name from stream. It will take the longest
available name.
"""
current = []
longest = 0
self.debug('Finding town')
for i in range(min(TOWN_LIMIT, len(future) - idx)):
current.append(future[idx + i])
i += 1
_, word = join_tokens(current)
self.debug('Testing <%s>', word)
if word in self.towns:
longest = i
self.debug('Found town <%s>', word)
return (longest > 0, idx + longest)
def finalize(self, is_improper):
"""All names have been added, finalize remaining attributes."""
self.attrs['tag'] = '|'.join(self.possible_tags)
tok_num = len(self.words)
while is_improper(self.words[tok_num - 1].word):
tok_num -= 1
self.words = self.words[:tok_num]
self.set_position(self.words[0].position)
self.whitespace, self.word = join_tokens(self.words)
lemma_parts = []
for name_part in self.lemmas:
opts = [lt[0] for lt in name_part if lt[1] in self.possible_tags]
if len(opts) > 0:
lemma_parts.append(most_frequent(opts))
self.attrs['lemma'] = ' '.join(lemma_parts)
def try_street(self, future, idx):
"""
Try to extract street or town from token stream. The longest option
will be taken.
"""
current = []
longest = 0
for i in range(min(STREET_LIMIT, len(future) - idx)):
current.append(future[idx + i])
i += 1
_, word = join_tokens(current)
self.debug('Testing <%s>', word)
# If there is a period without any spaces around it, add one
word = re.sub(r'(?<!\s)\.(?!\s)', '. ', word)
if word in self.streets or word in self.towns:
longest = i
self.debug('Found street <%s>', word)
if future[longest].word == '.':
longest += 1
return (longest > 0, idx + longest)
def try_extract_entry(self, history, future):
"""
Try to find a phrase in the future tokens.
"""
if not is_possible_start(future[0].word):
return None
current = []
last_seq = ''
longest = 0
for i in range(0, min(LIMIT, len(future) - 1)):
current.append(future[i])
sequence = ''.join([to_join(t) for t in current]).lstrip()
sequence = sequence.replace(' ,', ',').replace(' .', '.')
self.debug('current: <%s>', sequence)
if self.lookup_sequence(sequence):
longest = i + 1
last_seq = sequence
self.debug('Found match of len %d', longest)
self.debug('Longest match was: %d', longest)
if not self.check_length(longest, history, future):
return None
tokens = future.popmany(longest)
whitespace, text = join_tokens(tokens)
ent = PhraseEntity(text, tokens[0].position)
ent.whitespace = whitespace
lemma = self.find_lemma(last_seq)
if lemma:
ent.attrs['lemma'] = lemma
ent.add_categories(self.get_categories(last_seq))
return ent
def __init__(self, tokens):
whitespace, text = join_tokens(tokens)
ner.NamedEntity.__init__(self, text, None, 'COrganisation', None)
self.whitespace = whitespace
self.set_position(tokens[0].position)
self.set_src("OrganisationNer")
def build_entity(future, n, typ):
"""Create a pattern entity of type `typ` from `n` tokens."""
tokens = future.popmany(n)
whitespace, text = join_tokens(tokens)
return PatternEntity(text, typ, tokens[0].position, whitespace)
def get_word(self):
"""Return actual current name."""
return join_tokens(self.words)[1]
