def update_tag_scheme(sentences, tag_scheme, removeTag=None):
#{{{
"""
Check and update sentences tagging scheme to IOB2.
Only IOB1 and IOB2 schemes are accepted.
"""
for i, s in enumerate(sentences):
tags = [w[-1] for w in s]
# Check that tags are given in the IOB format
if not iob2(tags):
s_str = '\n'.join(' '.join(w) for w in s)
raise Exception('Sentences should be given in IOB format! ' +
'Please check sentence %i:\n%s' % (i, s_str))
if tag_scheme == 'iob':
# If format was IOB1, we convert to IOB2
for word, new_tag in zip(s, tags):
if removeTag is not None:
if new_tag[2:] in removeTag:
word[-1] = 'O'
else:
word[-1] = new_tag
elif tag_scheme == 'iobes':
new_tags = iob_iobes(tags)
for word, new_tag in zip(s, new_tags):
word[-1] = new_tag
else:
raise Exception('Unknown tagging scheme!')
def update_tag_scheme(sentences, tag_scheme):
"""
Check and update sentences tagging scheme to IOB2.
Only IOB1 and IOB2 schemes are accepted.
If tag scheme is generic, return without modifications
"""
if tag_scheme == 'generic':
return
for i, s in enumerate(sentences):
tags = [w[-1] for w in s]
# Check that tags are given in the IOB format
if not iob2(tags):
s_str = '\n'.join(' '.join(w) for w in s)
raise Exception('Sentences should be given in IOB format! ' +
'Please check sentence %i:\n%s' % (i, s_str))
if tag_scheme == 'iob':
# If format was IOB1, we convert to IOB2
for word, new_tag in zip(s, tags):
word[-1] = new_tag
elif tag_scheme == 'iobes':
new_tags = iob_iobes(tags)
for word, new_tag in zip(s, new_tags):
word[-1] = new_tag
else:
raise Exception('Unknown tagging scheme!')
def iob2obes(fn, outfn):
sen = []
sen_tokens = []
data = []
data_tokens = []
for line in open(fn):
if not line.rstrip():
sen = iob_iobes(sen)
data.append(sen)
for i in range(len(sen)):
sen_tokens[i][1] = sen[i]
data_tokens.append(sen_tokens)
sen = []
sen_tokens = []
continue
tokens = line.rstrip().split()
label = tokens[1]
sen.append(label)
sen_tokens.append(tokens)
fid = open(outfn, 'w')
for sen in data_tokens:
for tokens in sen:
fid.write(' '.join(tokens) + '\n')
fid.write('\n')
def test_CRFtag_to_SCRFtag(self):
tags = [
'O', 'O', 'I-LOC', 'I-LOC', 'O', 'O', 'I-PER', 'I-PER', 'I-PER',
'O', 'I-PER'
]
result = utils.iob_iobes(tags)
result = utils.CRFtag_to_SCRFtag([result])
print result
def test_iob_iobes(self):
print '\n\niob_iobes:'
tags = [
'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O',
'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O', 'O',
u'B-ORGANIZATION:CORPORATION', u'I-ORGANIZATION:CORPORATION',
u'I-ORGANIZATION:CORPORATION', u'E-ORGANIZATION:CORPORATION', 'O',
'O', 'O', 'O', 'O', 'O', 'O', 'O'
]
print 'original:\n', tags
result = utils.iob_iobes(tags)
print 'new:\n', result
def update_tag_scheme(sentences, tag_scheme):
"tag_scheme: 'iob' or 'iobes'"
for i, s in enumerate(sentences):
tags = [w[-1] for w in s]
# iob2 function:
# 1. Check that tags are given in the IOB format
# 2. Modify error tagging
if not utils.iob2(tags):
s_str = '\n'.join(' '.join(w) for w in s)
raise Exception('Sentences should be given in IOB format! ' +
'Please check sentence %i:\n%s' % (i, s_str))
if tag_scheme.lower() == 'iob':
# If format was IOB1, we convert to IOB2
for word, new_tag in zip(s, tags):
word[-1] = new_tag
elif tag_scheme.lower() == 'iobes':
new_tags = utils.iob_iobes(tags)
for word, new_tag in zip(s, new_tags):
word[-1] = new_tag
else:
raise Exception('Unknown tagging scheme!')
def update_tag_scheme(sentences, tag_scheme, file_format="conll"):
"""
Check and update sentences tagging scheme to IOB2.
Only IOB1 and IOB2 schemes are accepted.
"""
for i, s in enumerate(sentences):
tags = []
if file_format == "conll":
tags = [w[-1] for w in s]
elif file_format == "conllu":
if contains_golden_label(s[0], "NER_TAG"):
tags = [extract_correct_ner_tag_from_conllu(w) for w in s]
else:
continue
# Check that tags are given in the IOB format
if not iob2(tags):
s_str = '\n'.join(' '.join(w) for w in s)
print(s_str.encode("utf8"))
raise Exception('Sentences should be given in IOB format! ' +
'Please check sentence %i:\n%s' % (i, s_str))
if tag_scheme == 'iob':
# If format was IOB1, we convert to IOB2
for word, new_tag in zip(s, tags):
if file_format == "conll":
word[-1] = new_tag
elif file_format == "conllu":
field_contents_dict = load_MISC_column_contents(word[9])
field_contents_dict["NER_TAG"] = new_tag
word[9] = compile_MISC_column_contents(field_contents_dict)
elif tag_scheme == 'iobes':
new_tags = iob_iobes(tags)
for word, new_tag in zip(s, new_tags):
if file_format == "conll":
word[-1] = new_tag
elif file_format == "conllu":
field_contents_dict = load_MISC_column_contents(word[9])
field_contents_dict["NER_TAG"] = new_tag
word[9] = compile_MISC_column_contents(field_contents_dict)
else:
raise Exception('Unknown tagging scheme!')
def update_tag_scheme(sentences,tag_scheme):
"""
Check and update sentences tagging scheme to IOB2.
Only IOB1 and IOB2 schemes are accepted.
"""
new_sentences=[]
for i,sentence in enumerate(sentences):
tags=[word[-1] for word in sentence]
# check whether tagging scheme is IOB format or not
new_tags = iob2(tags)
if not new_tags:
error_str='\n'.join([' '.join(word) for word in sentence])
raise Exception("Sentence should be given in IOB format! "
"Please check sentence %i \n %s") % (i+1,error_str)
# convert tagging scheme
if tag_scheme=='iob':
pass
elif tag_scheme=='iobes':
new_tags=iob_iobes(new_tags)
else:
raise Exception('Unknown tag scheme!')
new_sentences.append([[word[0],tag] for word,tag in zip(sentence,new_tags)])
return new_sentences
def update_tag_scheme(sentences, tag_scheme):
"""
Check and update sentences tagging scheme to IOB2.
Only IOB1 and IOB2 schemes are accepted.
"""
for i, s in enumerate(sentences):
tags = [w[-1] for w in s]
# Check that tags are given in the IOB format
if not iob2(tags):
s_str = '\n'.join(' '.join(w) for w in s)
# raise Exception('Sentences should be given in IOB format! ' + 'Please check sentence %i:\n%s' % (i, s_str))
print('Removing Problematic sentence: %i:\n%s' % (i, s_str))
continue
if tag_scheme == 'iob':
# If format was IOB1, we convert to IOB2
for word, new_tag in zip(s, tags):
word[-1] = new_tag
elif tag_scheme == 'iobes':
new_tags = iob_iobes(tags)
for word, new_tag in zip(s, new_tags):
word[-1] = new_tag
else:
raise Exception('Unknown tagging scheme!')
def batch_yield(data,
batch_size,
vocab,
tag2label,
shuffle=False,
iob2iobes=True):
"""
:param data:list [<class 'tuple'>: (['19421', '21215', '14459', '12052', '7731', '3028', '17622', '11664', '13751', '10841', '11255', '159', '8467', '15671', '2699', '13751', '11806', '14459', '15274'], ['B-b', 'I-b', 'I-b', 'O', 'O', 'B-b', 'I-b', 'O', 'O', 'O', 'O', 'O', 'B-b', 'B-b', 'O', 'O', 'O', 'O', 'O']),...]
:param batch_size:
:param vocab: word2id 字典
:param tag2label: 见data处
:param shuffle:
:return: train_data <class 'list'>: [[4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437, 4437],...]
label <class 'list'>: [[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],...]
"""
if shuffle:
random.shuffle(data)
seqs, labels = [], []
for (sent_, tag_) in data:
sent_ = sentence2id(sent_, vocab)
if 'E-PER.NOM' in tag_:
print(tag_)
if iob2iobes:
tag_ = iob_iobes(tag_)
label_ = [tag2label[tag] for tag in tag_]
if len(seqs) == batch_size:
yield seqs, labels
seqs, labels = [], []
seqs.append(sent_)
labels.append(label_)
if len(seqs) != 0:
yield seqs, labels
