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57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
# coding: utf8
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from __future__ import unicode_literals
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from cytoolz import partition_all, concat
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from ...compat import json_dumps, path2str
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from ...util import prints
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from ...gold import iob_to_biluo
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def iob2json(input_path, output_path, n_sents=10, *a, **k):
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"""
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Convert IOB files into JSON format for use with train cli.
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"""
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with input_path.open('r', encoding='utf8') as file_:
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sentences = read_iob(file_)
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docs = merge_sentences(sentences, n_sents)
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output_filename = input_path.parts[-1].replace(".iob", ".json")
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output_file = output_path / output_filename
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with output_file.open('w', encoding='utf-8') as f:
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f.write(json_dumps(docs))
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prints("Created %d documents" % len(docs),
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title="Generated output file %s" % path2str(output_file))
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def read_iob(raw_sents):
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sentences = []
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for line in raw_sents:
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if not line.strip():
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continue
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tokens = [t.split('|') for t in line.split()]
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if len(tokens[0]) == 3:
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words, pos, iob = zip(*tokens)
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else:
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words, iob = zip(*tokens)
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pos = ['-'] * len(words)
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biluo = iob_to_biluo(iob)
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sentences.append([
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{'orth': w, 'tag': p, 'ner': ent}
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for (w, p, ent) in zip(words, pos, biluo)
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])
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sentences = [{'tokens': sent} for sent in sentences]
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paragraphs = [{'sentences': [sent]} for sent in sentences]
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docs = [{'id': 0, 'paragraphs': [para]} for para in paragraphs]
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return docs
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def merge_sentences(docs, n_sents):
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counter = 0
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merged = []
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for group in partition_all(n_sents, docs):
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group = list(group)
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first = group.pop(0)
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to_extend = first['paragraphs'][0]['sentences']
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for sent in group[1:]:
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to_extend.extend(sent['paragraphs'][0]['sentences'])
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merged.append(first)
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return merged
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