mirror of
https://gitlab.ub.uni-bielefeld.de/sfb1288inf/nlp.git
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306 lines
11 KiB
Python
Executable File
306 lines
11 KiB
Python
Executable File
#!/usr/bin/env python3.7
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# coding=utf-8
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from argparse import ArgumentParser
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import chardet
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import hashlib
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import json
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import os
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import spacy
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import textwrap
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import uuid
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def UUIDnopaque(name):
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return 'nopaque_{}'.format(
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uuid.uuid3(uuid.NAMESPACE_DNS,
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'{}@nopaque.sfb1288.uni-bielefeld.de'.format(name))
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)
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spacy_models = {spacy.info(pipeline)['lang']: pipeline
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for pipeline in spacy.info()['pipelines']}
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# Parse the given arguments
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parser = ArgumentParser(description='Create annotations for a given txt file')
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parser.add_argument('input', help='Path to txt input file')
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parser.add_argument('output', help='Path to JSON output file')
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parser.add_argument('-l', '--language',
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choices=spacy_models.keys(),
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help='Language of the input (2-character ISO 639-1 language codes)', # noqa
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required=True)
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parser.add_argument('-c', '--check-encoding',
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action='store_true',
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help='Check encoding of the input file, UTF-8 is used instead') # noqa
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args = parser.parse_args()
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with open(args.input, "rb") as text_file:
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if args.check_encoding:
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encoding = chardet.detect(text_file.read())['encoding']
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else:
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encoding = 'utf-8'
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text_file.seek(0)
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text_md5 = hashlib.md5()
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for chunk in iter(lambda: text_file.read(128 * text_md5.block_size), b''):
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text_md5.update(chunk)
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# Load the text contents from the input file
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with open(args.input, encoding=encoding) as text_file:
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# spaCy NLP is limited to strings with a maximum of 1 million characters at
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# once. So we split it into suitable chunks.
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text_chunks = textwrap.wrap(
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text_file.read(),
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1000000,
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break_long_words=False,
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break_on_hyphens=False,
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drop_whitespace=False,
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expand_tabs=False,
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replace_whitespace=False
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)
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model = spacy_models[args.language]
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nlp = spacy.load(model)
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meta = {
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'generator': {
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'name': 'nopaque NLP service',
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'version': '1.0.0',
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'arguments': {
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'check_encoding': args.check_encoding,
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'language': args.language
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}
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},
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'file': {
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'encoding': encoding,
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'md5': text_md5.hexdigest(),
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'name': os.path.basename(args.input)
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}
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}
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tags = [
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{
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'id': UUIDnopaque('token'),
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'name': 'token',
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'description': 'An individual token — i.e. a word, punctuation symbol, whitespace, etc.',
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'properties': [
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{
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'id': UUIDnopaque('token.lemma'),
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'name': 'lemma',
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'description': 'The base form of the word',
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'flags': ['required'],
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'labels': []
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},
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{
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'id': UUIDnopaque('token.pos'),
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'name': 'pos',
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'description': 'The detailed part-of-speech tag',
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'flags': ['required'],
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'labels': [
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{
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'id': UUIDnopaque('token.pos={}'.format(label)),
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'name': label,
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'description': spacy.explain(label) or ''
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} for label in spacy.info(model)['labels']['tagger']
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]
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},
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{
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'id': UUIDnopaque('token.simple_pos'),
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'name': 'simple_pos',
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'description': 'The simple UPOS part-of-speech tag',
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'flags': ['required'],
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'labels': [
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'ADJ',
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'description': 'adjective'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'ADP',
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'description': 'adposition'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'ADV',
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'description': 'adverb'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'AUX',
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'description': 'auxiliary verb'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'CONJ',
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'description': 'coordinating conjunction'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'DET',
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'description': 'determiner'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'INTJ',
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'description': 'interjection'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'NOUN',
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'description': 'noun'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'NUM',
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'description': 'numeral'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'PART',
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'description': 'particle'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'PRON',
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'description': 'pronoun'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'PROPN',
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'description': 'proper noun'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'PUNCT',
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'description': 'punctuation'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'SCONJ',
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'description': 'subordinating conjunction'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'SYM',
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'description': 'symbol'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'VERB',
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'description': 'verb'
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},
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{
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'id': UUIDnopaque('token.simple_pos=ADJ'),
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'name': 'X',
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'description': 'other'
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}
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]
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},
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{
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'id': UUIDnopaque('token.ner'),
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'name': 'ner',
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'description': 'Label indicating the type of the entity',
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'flags': ['required'],
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'labels': [
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{
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'id': UUIDnopaque('token.ner={}'.format(label)),
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'name': label,
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'description': spacy.explain(label) or ''
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} for label in spacy.info(model)['labels']['ner']
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]
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}
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]
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},
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{
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'id': UUIDnopaque('s'),
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'name': 's',
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'description': 'Encodes the start and end of a sentence',
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'properties': []
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},
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{
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'id': UUIDnopaque('ent'),
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'name': 'ent',
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'description': 'Encodes the start and end of a named entity',
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'properties': [
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{
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'id': UUIDnopaque('ent.type'),
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'name': 'type',
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'description': 'Label indicating the type of the entity',
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'flags': ['required'],
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'labels': [
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{
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'id': UUIDnopaque('ent.type={}'.format(label)),
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'name': label,
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'description': spacy.explain(label) or ''
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} for label in spacy.info(model)['labels']['ner']
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]
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}
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]
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}
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]
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annotations = []
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chunk_offset = 0
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while text_chunks:
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text_chunk = text_chunks.pop(0)
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doc = nlp(text_chunk)
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for token in doc:
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if token.is_space:
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continue
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if token.is_sent_start:
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annotation = {'start': token.sent.start_char + chunk_offset,
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'end': token.sent.end_char + chunk_offset,
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'tag_id': UUIDnopaque('s'),
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'properties': []}
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annotations.append(annotation)
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# Check if the token is the start of an entity
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if token.ent_iob == 3:
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for ent_candidate in token.sent.ents:
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if ent_candidate.start_char == token.idx:
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ent = ent_candidate
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annotation = {
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'start': ent.start_char + chunk_offset,
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'end': ent.end_char + chunk_offset,
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'tag_id': UUIDnopaque('ent'),
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'properties': [
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{
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'property_id': UUIDnopaque('ent.type'),
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'value': token.ent_type_
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}
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]
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}
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annotations.append(annotation)
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break
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annotation = {
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'start': token.idx + chunk_offset,
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'end': token.idx + len(token.text) + chunk_offset,
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'tag_id': UUIDnopaque('token'),
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'properties': [
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{
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'property_id': UUIDnopaque('token.pos'),
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'value': token.tag_
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},
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{
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'property_id': UUIDnopaque('token.lemma'),
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'value': token.lemma_
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},
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{
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'property_id': UUIDnopaque('token.simple_pos'),
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'value': token.pos_
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},
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{
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'property_id': UUIDnopaque('token.ner'),
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'value': token.ent_type_ if token.ent_type_ else 'None'
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}
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]
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}
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annotations.append(annotation)
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chunk_offset += len(text_chunk)
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text_chunk = None
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with open(args.output, 'w') as output_file:
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json.dump({'meta': meta, 'tags': tags, 'annotations': annotations},
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output_file, indent=4)
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