trC_iter = (pre_proc(c) for c in train_context)
trQ_iter = (pre_proc(q) for q in train.question)
trC_docs = [doc for doc in nlp.pipe(trC_iter, batch_size=64, n_threads=args.threads)]
trQ_docs = [doc for doc in nlp.pipe(trQ_iter, batch_size=64, n_threads=args.threads)]
# tokens
trC_tokens = [[re.sub(r'_', ' ', normalize_text(w.text)) for w in doc] for doc in trC_docs]
trQ_tokens = [[re.sub(r'_', ' ', normalize_text(w.text)) for w in doc] for doc in trQ_docs]
trC_unnorm_tokens = [[re.sub(r'_', ' ', w.text) for w in doc] for doc in trC_docs]
log.info('All tokens for training are obtained.')
train_context_span = [get_context_span(a, b) for a, b in zip(train_context, trC_unnorm_tokens)]
ans_st_token_ls, ans_end_token_ls = [], []
for ans_st, ans_end, idx in zip(train.answer_start, train.answer_end, train.context_idx):
ans_st_token, ans_end_token = find_answer_span(train_context_span[idx], ans_st, ans_end)
ans_st_token_ls.append(ans_st_token)
ans_end_token_ls.append(ans_end_token)
ration_st_token_ls, ration_end_token_ls = [], []
for ration_st, ration_end, idx in zip(train.rationale_start, train.rationale_end, train.context_idx):
ration_st_token, ration_end_token = find_answer_span(train_context_span[idx], ration_st, ration_end)
ration_st_token_ls.append(ration_st_token)
ration_end_token_ls.append(ration_end_token)
train['answer_start_token'], train['answer_end_token'] = ans_st_token_ls, ans_end_token_ls
train['rationale_start_token'], train['rationale_end_token'] = ration_st_token_ls, ration_end_token_ls
initial_len = len(train)
train.dropna(inplace=True) # modify self DataFrame
log.info('drop {0}/{1} inconsistent samples.'.format(initial_len - len(train), initial_len))
def preprocess_data(dev_file):
dev, dev_context = flatten_json(dev_file, proc_dev)
dev = pd.DataFrame(dev,
columns=[
'context_idx', 'question', 'answer', 'answer_start',
'answer_end', 'answer_choice', 'all_answer', 'qid'
])
print('dev json data flattened.')
devC_iter = (pre_proc(c) for c in dev_context)
devQ_iter = (pre_proc(q) for q in dev.question)
nlp = spacy.load('en', disable=['parser'])
devC_docs = [
doc for doc in nlp.pipe(
devC_iter, batch_size=64, n_threads=multiprocessing.cpu_count())
]
devQ_docs = [
doc for doc in nlp.pipe(
devQ_iter, batch_size=64, n_threads=multiprocessing.cpu_count())
]
del nlp
devC_tokens = [[normalize_text(w.text) for w in doc] for doc in devC_docs]
devQ_tokens = [[normalize_text(w.text) for w in doc] for doc in devQ_docs]
devC_unnorm_tokens = [[w.text for w in doc] for doc in devC_docs]
print('All tokens for dev are obtained.')
dev_context_span = [
get_context_span(a, b) for a, b in zip(dev_context, devC_unnorm_tokens)
]
print('context span for dev is generated.')
ans_st_token_ls, ans_end_token_ls = [], []
for ans_st, ans_end, idx in zip(dev.answer_start, dev.answer_end,
dev.context_idx):
ans_st_token, ans_end_token = find_answer_span(dev_context_span[idx],
ans_st, ans_end)
ans_st_token_ls.append(ans_st_token)
ans_end_token_ls.append(ans_end_token)
dev['answer_start_token'], dev[
'answer_end_token'] = ans_st_token_ls, ans_end_token_ls
initial_len = len(dev)
dev.dropna(inplace=True) # modify self DataFrame
print('drop {0}/{1} inconsistent samples.'.format(initial_len - len(dev),
initial_len))
print('answer span for dev is generated.')
devC_tags, devC_ents, devC_features = feature_gen(devC_docs,
dev.context_idx,
devQ_docs, False)
print('features for dev is generated: {}, {}, {}'.format(
len(devC_tags), len(devC_ents), len(devC_features)))
dev_vocab = build_dev_vocab(
devQ_tokens, devC_tokens) # tr_vocab is a subset of dev_vocab
devC_ids = token2id(devC_tokens, dev_vocab, unk_id=1)
devQ_ids = token2id(devQ_tokens, dev_vocab, unk_id=1)
devQ_tokens = [["<S>"] + doc + ["</S>"] for doc in devQ_tokens]
devQ_ids = [[2] + qsent + [3] for qsent in devQ_ids]
# BERT stuff
devC_bert_tokens = tokenize(devC_tokens)
devC_bert_ids = [bert_tokens_to_ids(x) for x in devC_bert_tokens]
devQ_bert_tokens = tokenize(devQ_tokens)
devQ_bert_ids = [bert_tokens_to_ids(x) for x in devQ_bert_tokens]
devC_bert_spans = [
calc_bert_spans(b, t) for b, t in zip(devC_bert_tokens, devC_tokens)
]
devQ_bert_spans = [
calc_bert_spans(b, t) for b, t in zip(devQ_bert_tokens, devQ_tokens)
]
vocab_tag = pickle.load(open('./vocab_tag.pkl', 'rb'))
vocab_ent = pickle.load(open('./vocab_ent.pkl', 'rb'))
devC_tag_ids = token2id(devC_tags, vocab_tag) # vocab_tag same as training
# entities
devC_ent_ids = token2id(devC_ents, vocab_ent,
unk_id=0) # vocab_ent same as training
print('vocabulary for dev is built.')
dev_embedding = build_embedding('glove/glove.840B.300d.txt', dev_vocab,
300)
meta = {'vocab': dev_vocab, 'embedding': dev_embedding.tolist()}
prev_CID, first_question = -1, []
for i, CID in enumerate(dev.context_idx):
if not (CID == prev_CID):
first_question.append(i)
prev_CID = CID
result = {
'qids': dev.qid.tolist(),
'question_ids': devQ_ids,
'context_ids': devC_ids,
'context_features': devC_features, # exact match, tf
'context_tags': devC_tag_ids, # POS tagging
'context_ents': devC_ent_ids, # Entity recognition
'context': dev_context,
'context_span': dev_context_span,
'1st_question': first_question,
'question_CID': dev.context_idx.tolist(),
'question': dev.question.tolist(),
'answer': dev.answer.tolist(),
'answer_start': dev.answer_start_token.tolist(),
'answer_end': dev.answer_end_token.tolist(),
'answer_choice': dev.answer_choice.tolist(),
'all_answer': dev.all_answer.tolist(),
'context_tokenized': devC_tokens,
'question_tokenized': devQ_tokens,
'context_bertidx': devC_bert_ids,
'context_bert_spans': devC_bert_spans,
'question_bertidx': devQ_bert_ids,
'question_bert_spans': devQ_bert_spans
}
return meta, result
trQ_tokens = [[normalize_text(w.text) for w in doc] for doc in trQ_docs]
trC_unnorm_tokens = [[w.text for w in doc] for doc in trC_docs]
log.info('All tokens for training are obtained.')
train_context_span = [
get_context_span(a, b) for a, b in zip(train_context, trC_unnorm_tokens)
]
#get_context_span()#各个context_token这个list中的token对应于context这个字符串中的，单词首尾的下标
#train_context_span 这个list中的每个元素是[[],[],[]]一句话作为list，这句话里面的每个单词再是一个二元素的list
ans_st_token_ls, ans_end_token_ls = [], []
for ans_st, ans_end, idx in zip(
train.answer_start, train.answer_end,
train.context_idx): #ans_st,ans_end也是char base的
ans_st_token, ans_end_token = find_answer_span(
train_context_span[idx], ans_st,
ans_end) #这个就是我关心的关键，如何将char_base的index，转化为token_base的，有可能返回-1，-1哦
#这里的逻辑很简单，真正神奇的事情已经发生过了，就是白天看的
#在free_text_to_span()函数中两个函数的配合使用
#其一len_preserved_normalize_answer()在去掉每一个标点或者不想要的字符的时候，用空白符填补，确保返回的字符串的长度不变，并且里面的每个单词所处的位置不变
#其二split_with_span()在这个里面使用了re.finditer()函数，返回了每个匹配的start和end
#zip(*[(m.group(0), (m.start(), m.end()-1)) for m in re.finditer(r'\S+', s)])#\S匹配非空白字符
#返回的东西用zip(*返回的东西)裹一下，这样外面就得到了list[str],list[span()]
ans_st_token_ls.append(ans_st_token)
ans_end_token_ls.append(ans_end_token)
ration_st_token_ls, ration_end_token_ls = [], []
for ration_st, ration_end, idx in zip(
train.rationale_start, train.rationale_end, train.context_idx
): #与得到答案的首尾token base的首尾index 的方法一样，得到rationale的token base的首尾span
ration_st_token, ration_end_token = find_answer_span(
def build_test_data(opt, dev_file, vocab):
# random.seed(args.seed)
# np.random.seed(args.seed)
# logging.basicConfig(format='%(asctime)s %(message)s', level=logging.DEBUG,
# datefmt='%m/%d/%Y %I:%M:%S')
log = logging.getLogger(__name__)
# tags
vocab_tag = [''] + list(nlp.tagger.labels)
# entities
# log.info('start data preparing... (using {} threads)'.format(args.threads))
# glove_vocab = load_glove_vocab(wv_file, wv_dim) # return a "set" of vocabulary
# log.info('glove loaded.')
def proc_dev(ith, article):
rows = []
context = article['story']
for j, (question, answers) in enumerate(
zip(article['questions'], article['answers'])):
gold_answer = answers['input_text']
span_answer = answers['span_text']
answer, char_i, char_j = free_text_to_span(gold_answer,
span_answer)
answer_choice = 0 if answer == '__NA__' else \
1 if answer == '__YES__' else \
2 if answer == '__NO__' else \
3 # Not a yes/no question
if answer_choice == 3:
answer_start = answers['span_start'] + char_i
answer_end = answers['span_start'] + char_j
else:
answer_start, answer_end = -1, -1
rationale = answers['span_text']
rationale_start = answers['span_start']
rationale_end = answers['span_end']
q_text = question['input_text']
if j > 0:
q_text = article['answers'][j -
1]['input_text'] + " // " + q_text
rows.append(
(ith, q_text, answer, answer_start, answer_end, rationale,
rationale_start, rationale_end, answer_choice))
return rows, context
dev, dev_context = flatten_json(dev_file, proc_dev)
dev = pd.DataFrame(dev,
columns=[
'context_idx', 'question', 'answer', 'answer_start',
'answer_end', 'rationale', 'rationale_start',
'rationale_end', 'answer_choice'
])
# log.info('dev json data flattened.')
# print(dev)
devC_iter = (pre_proc(c) for c in dev_context)
devQ_iter = (pre_proc(q) for q in dev.question)
devC_docs = [
doc
for doc in nlp.pipe(devC_iter, batch_size=64, n_threads=args.threads)
]
devQ_docs = [
doc
for doc in nlp.pipe(devQ_iter, batch_size=64, n_threads=args.threads)
]
# tokens
devC_tokens = [[re.sub(r'_', ' ', normalize_text(w.text)) for w in doc]
for doc in devC_docs]
devQ_tokens = [[re.sub(r'_', ' ', normalize_text(w.text)) for w in doc]
for doc in devQ_docs]
devC_unnorm_tokens = [[re.sub(r'_', ' ', w.text) for w in doc]
for doc in devC_docs]
# log.info('All tokens for dev are obtained.')
dev_context_span = [
get_context_span(a, b) for a, b in zip(dev_context, devC_unnorm_tokens)
]
# log.info('context span for dev is generated.')
ans_st_token_ls, ans_end_token_ls = [], []
for ans_st, ans_end, idx in zip(dev.answer_start, dev.answer_end,
dev.context_idx):
ans_st_token, ans_end_token = find_answer_span(dev_context_span[idx],
ans_st, ans_end)
ans_st_token_ls.append(ans_st_token)
ans_end_token_ls.append(ans_end_token)
ration_st_token_ls, ration_end_token_ls = [], []
for ration_st, ration_end, idx in zip(dev.rationale_start,
dev.rationale_end, dev.context_idx):
ration_st_token, ration_end_token = find_answer_span(
dev_context_span[idx], ration_st, ration_end)
ration_st_token_ls.append(ration_st_token)
ration_end_token_ls.append(ration_end_token)
dev['answer_start_token'], dev[
'answer_end_token'] = ans_st_token_ls, ans_end_token_ls
dev['rationale_start_token'], dev[
'rationale_end_token'] = ration_st_token_ls, ration_end_token_ls
initial_len = len(dev)
dev.dropna(inplace=True) # modify self DataFrame
# log.info('drop {0}/{1} inconsistent samples.'.format(initial_len - len(dev), initial_len))
# log.info('answer span for dev is generated.')
# features
devC_tags, devC_ents, devC_features = feature_gen(devC_docs,
dev.context_idx,
devQ_docs, args.no_match)
# log.info('features for dev is generated: {}, {}, {}'.format(len(devC_tags), len(devC_ents), len(devC_features)))
vocab_ent = list(set([ent for sent in devC_ents for ent in sent]))
# vocab
dev_vocab = vocab # tr_vocab is a subset of dev_vocab
devC_ids = token2id(devC_tokens, dev_vocab, unk_id=1)
devQ_ids = token2id(devQ_tokens, dev_vocab, unk_id=1)
devQ_tokens = [["<S>"] + doc + ["</S>"] for doc in devQ_tokens]
devQ_ids = [[2] + qsent + [3] for qsent in devQ_ids]
# print(devQ_ids[:10])
# tags
devC_tag_ids = token2id(devC_tags, vocab_tag) # vocab_tag same as training
# entities
devC_ent_ids = token2id(devC_ents, vocab_ent,
unk_id=0) # vocab_ent same as training
# log.info('vocabulary for dev is built.')
prev_CID, first_question = -1, []
for i, CID in enumerate(dev.context_idx):
if not (CID == prev_CID):
first_question.append(i)
prev_CID = CID
data = {
'question_ids': devQ_ids,
'context_ids': devC_ids,
'context_features': devC_features, # exact match, tf
'context_tags': devC_tag_ids, # POS tagging
'context_ents': devC_ent_ids, # Entity recognition
'context': dev_context,
'context_span': dev_context_span,
'1st_question': first_question,
'question_CID': dev.context_idx.tolist(),
'question': dev.question.tolist(),
'answer': dev.answer.tolist(),
'answer_start': dev.answer_start_token.tolist(),
'answer_end': dev.answer_end_token.tolist(),
'rationale_start': dev.rationale_start_token.tolist(),
'rationale_end': dev.rationale_end_token.tolist(),
'answer_choice': dev.answer_choice.tolist(),
'context_tokenized': devC_tokens,
'question_tokenized': devQ_tokens
}
# with open('CoQA/test_data.msgpack', 'wb') as f:
# msgpack.dump(result, f)
# log.info('saved test to disk.')
dev = {
'context':
list(
zip(data['context_ids'], data['context_tags'],
data['context_ents'], data['context'], data['context_span'],
data['1st_question'], data['context_tokenized'])),
'qa':
list(
zip(data['question_CID'], data['question_ids'],
data['context_features'], data['answer_start'],
data['answer_end'], data['rationale_start'],
data['rationale_end'], data['answer_choice'], data['question'],
data['answer'], data['question_tokenized']))
}
print("test_data built")
# embedding = torch.Tensor(meta['embedding'])
return dev