def cal_bleu_rouge(keys, values, rank=None, num_print=10000):
start = rank * num_print if rank is not None else 0
end = start + num_print
# values = [val[start:end] for val in values]
ref_answers, pred_answers = [], []
for ex_idx in range(len(values[0])):
for key_idx, key in enumerate(keys):
value = values[key_idx][ex_idx]
v = value[0] if isinstance(value, list) else value
# print(f'{key}: {repr(v)}')
if key == 'greedy':
pred_answers.append({'answers': [str(v)]})
elif key == 'answer':
ref_answers.append({
'answers': [str(v)],
'question_id': ex_idx
})
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
# 利用utils包，normalize strings to space joined chars
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
# pred_dict是预测值，ref_dict是真实值
# 利用utils包，calculate bleu and rouge metrics
else:
bleu_rouge = None
return bleu_rouge
def run_eval(pred_answers_list, ref_answers_list):
"""
Run eval.
"""
pred_answers = pred_answers_list
ref_answers = ref_answers_list
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
assert len(pred_answers) == len(ref_answers), \
"length distinguish: (pred_len={}) != (ref_len={})".format(len(pred_answers), len(ref_answers))
pred_ids, ref_ids = [], []
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id_pred = pred['question_id']
question_id_ref = ref['question_id']
pred_ids.append(question_id_pred)
ref_ids.append(question_id_ref)
if len(ref['answers']) > 0:
pred_dict[question_id_pred] = normalize(pred['answers'])
ref_dict[question_id_ref] = normalize(ref['answers'])
assert set(pred_ids) == set(
ref_ids), "There have different ids in both files."
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return bleu_rouge
def evaluate(self, eval_batches, result_dir=None, result_prefix=None, save_full_info=False):
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
for b_itx, batch in enumerate(eval_batches):
feed_dict = {self.p: batch['passage_token_ids'],
self.q: batch['question_token_ids'],
self.p_length: batch['passage_length'],
self.q_length: batch['question_length'],
self.start_label: batch['start_id'],
self.end_label: batch['end_id'],
self.dropout: 0.0}
start_probs, end_probs,loss= self.sess.run([self.start_probs,self.end_probs,self.loss], feed_dict)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
padded_p_len = len(batch['passage_token_ids'][0])
for sample, start_prob, end_prob in zip(batch['raw_data'], start_probs, end_probs):
best_answer = self.find_best_answer(sample, start_prob, end_prob, padded_p_len)
if save_full_info:
sample['pred_answers'] = [best_answer]
pred_answers.append(sample)
else:
pred_answers.append({'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': []})
if 'answers' in sample:
ref_answers.append({'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []})
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w',encoding='utf-8') as fout:
for pred_answer in pred_answers:
fout.write(json.dumps(pred_answer, ensure_ascii=False) + '\n')
self.logger.info('Saving {} results to {}'.format(result_prefix, result_file))
# this average loss is invalid on test set, since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss,bleu_rouge
def get_score(result_dir):
pred_answers = []
with open(result_dir) as fin:
for lidx_a, line_a in enumerate(fin):
em_answer = json.loads(line_a.strip())
pred_answers.append(em_answer)
# 如果有参考答案，计算bleu和rouge分数
pred_dict, ref_dict = {}, {}
for answer in pred_answers:
question_id = answer['question_id']
if len(answer['ref_answers']) > 0:
pred_dict[question_id] = normalize(answer['answers'])
ref_dict[question_id] = normalize(answer['ref_answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
return bleu_rouge
def eval(path1, path2):
# with open(path2, encoding='utf-8') as f:
# data = json.load(f)
# id = list(int(i) for i in data.keys())
with open(path1, encoding='utf-8') as f:
pred_answers, ref_answers = [], []
for lidx, line in enumerate(f):
sample = json.loads(line.strip())
pred_answers.append({
'question_id': sample['question_id'],
'question': sample['question'],
'question_type': sample['question_type'],
'answers': ["No Answer Present."],
'ref_answers': sample['ref_answers'],
'entity_answers': [[]],
'yesno_answers': []
})
ref_answers.append({
'question_id': sample['question_id'],
'question': sample['question'],
'question_type': sample['question_type'],
'answers': sample['ref_answers'],
'ref_answers': sample['ref_answers'],
'entity_answers': [[]],
'yesno_answers': []
})
pred_dict, ref_dict = {}, {}
F1 = 0
count = 0
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
F = local_prf(pred['answers'][0].split(),
ref['answers'][0].split())
F1 += F
count += 1
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
F1_avg = F1 / count
return bleu_rouge, F1_avg
def evaluate(self,
infer_file,
ret=None,
from_file=False):
"""
Processes and evaluates the inferred result.
Args:
infer_file: A file name to store or read from the inferred results.
ret: The information returned by the inferring operation, which
contains the batch-level input and the the batch-level
inferring result.
from_file: If True, the time consuming inferring process will be
skipped, and this method takes the content of infer_file
as input for evaluation. If False, this method takes
the ret as input for evaluation.
"""
def _merge_and_normalize(obj_list):
ret = {}
for obj in obj_list:
normalized = {k: normalize(v) for k, v in obj.items()}
ret.update(normalized)
return ret
pred_list = []
ref_list = []
objs = []
if from_file:
ref_list, pred_list = self._read_list(infer_file)
else:
ref_list, pred_list, objs = self._parse_infer_ret(ret)
with open(infer_file, 'w') as of:
for o in objs:
print >> of, json.dumps(o, ensure_ascii=False).encode('utf8')
metrics = compute_bleu_rouge(
_merge_and_normalize(pred_list),
_merge_and_normalize(ref_list))
res_str = '{} {}'.format(infer_file,
' '.join('{}={}'.format(k, v) for k, v in metrics.items()))
logger.info(res_str)
def run_eval(pred_answers_list, ref_answers_list):
"""
Run eval.
"""
pred_answers = pred_answers_list
ref_answers = ref_answers_list
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return bleu_rouge
def evaluate(self,
eval_batches,
result_dir=None,
result_prefix=None,
save_full_info=False):
"""
Evaluates the model performance on eval_batches and results are saved if specified
Args:
eval_batches: iterable batch data
result_dir: directory to save predicted answers, answers will not be saved if None
# 文件的前缀
result_prefix: prefix of the file for saving predicted answers,
answers will not be saved if None
save_full_info: if True, the pred_answers will be added to raw sample and saved
"""
# 预测答案，参考答案
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
line_number = 1 # 从第1行开始读
for bitx in range(1, 72):
batch, line_number = self.brc_data.load_batch_size_data_set(
line_number, '../data/devset/search.dev.json', train=True)
feed_dict = {
self.p: batch['passage_token_ids'],
self.q: batch['question_token_ids'],
self.p_length: batch['passage_length'],
self.q_length: batch['question_length'],
self.start_label: batch['start_id'],
self.end_label: batch['end_id'],
self.dropout_keep_prob: 1.0
}
start_probs, end_probs, loss = self.sess.run(
[self.start_probs, self.end_probs, self.loss], feed_dict)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
padded_p_len = len(batch['passage_token_ids'][0])
for sample, start_prob, end_prob in zip(batch['raw_data'],
start_probs, end_probs):
best_answer = self.find_best_answer(sample, start_prob,
end_prob, padded_p_len)
# 如果需要保存预测答案信息，将会把预测答案存入源sample中并保存
if save_full_info:
sample['pred_answers'] = [best_answer]
pred_answers.append(sample)
else:
pred_answers.append({
'question_id':
sample['question_id'],
'question_type':
sample['question_type'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': []
})
if 'answers' in sample:
ref_answers.append({
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []
})
# 保存预测数据
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w') as fout:
for pred_answer in pred_answers:
fout.write(
json.dumps(pred_answer, ensure_ascii=False) + '\n')
self.logger.info('Saving {} results to {}'.format(
result_prefix, result_file))
# 计算损失 以及bleu and rouge得分
# this average loss is invalid on test set, since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
# 把预测数据 与 参考答案保存
pickle.dump(pred_dict, open('./logs/pred_dict.txt', 'wb'))
pickle.dump(ref_dict, open('./logs/ref_dict.txt', 'wb'))
result_file = os.path.join('./logs', 'pred_dict' + '.json')
with open(result_file, 'w') as fout:
fout.write(json.dumps(pred_dict, ensure_ascii=False) + '\n')
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss, bleu_rouge
def evaluate(self, eval_batches, result_dir=None, result_prefix=None, save_full_info=False):
"""
Evaluates the model performance on eval_batches and results are saved if specified
Args:
eval_batches: iterable batch data
result_dir: directory to save predicted answers, answers will not be saved if None
result_prefix: prefix of the file for saving predicted answers,
answers will not be saved if None
save_full_info: if True, the pred_answers will be added to raw sample and saved
"""
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
for b_itx, batch in enumerate(eval_batches):
feed_dict = {self.p: batch['passage_token_ids'],
self.q: batch['question_token_ids'],
self.p_length: batch['passage_length'],
self.q_length: batch['question_length'],
self.start_label: batch['start_id'],
self.end_label: batch['end_id'],
self.dropout_keep_prob: 1.0}
start_probs, end_probs, loss = self.sess.run([self.start_probs,
self.end_probs, self.loss], feed_dict)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
padded_p_len = len(batch['passage_token_ids'][0])
for sample, start_prob, end_prob in zip(batch['raw_data'], start_probs, end_probs):
best_answer = self.find_best_answer(sample, start_prob, end_prob, padded_p_len)
if save_full_info:
sample['pred_answers'] = [best_answer]
pred_answers.append(sample)
else:
pred_answers.append({'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': []})
if 'answers' in sample:
ref_answers.append({'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []})
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w') as fout:
for pred_answer in pred_answers:
fout.write(json.dumps(pred_answer, encoding='utf8', ensure_ascii=False) + '\n')
self.logger.info('Saving {} results to {}'.format(result_prefix, result_file))
# this average loss is invalid on test set, since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss, bleu_rouge
def train_analysis(self, step):
pred_answers, ref_answers = [], []
fake_answers = []
ref_answers.append({
'question_id': self.data['question_id'],
'question_type': self.data['question_type'],
'answers': self.data['ref_answers']
})
listSelectedSet = []
all_set = []
# print '+++++++++++++++++++++++++++++++++++++++++++'
# print ('question_id', list2string(self.tfg.vocab.recover_from_ids(self.data['question_token_ids'])))
for p_idx, is_selected in enumerate(
self.data['passage_is_selected_list'], 0):
all_set += self.data['passage_token_ids_list'][p_idx]
if is_selected == True:
# print 'is True'
# print('title ', self.data['passage_title_token_ids_list'][p_idx])
#print('title', list2string(self.tfg.vocab.recover_from_ids(self.data['passage_title_token_ids_list'][p_idx])))
listSelectedSet += self.data['passage_token_ids_list'][p_idx]
pred_answer_str = ''
str123_list = self.tfg.vocab.recover_from_ids(listSelectedSet)
all_set_list = self.tfg.vocab.recover_from_ids(all_set)
for s in str123_list:
pred_answer_str += s
selected_recall_score = 1
selected_f1_score = 0
all_racall_score = 1
all_f1_score = 0
if len(self.data['segmented_answers']) > 0 and len(str123_list) > 0:
selected_recall_score = metric_max_over_ground_truths(
recall, str123_list, self.data['segmented_answers'])
selected_f1_score = metric_max_over_ground_truths(
f1_score, str123_list, self.data['segmented_answers'])
if len(self.data['segmented_answers']) > 0 and len(str123_list) > 0:
all_racall_score = metric_max_over_ground_truths(
recall, all_set_list, self.data['segmented_answers'])
all_f1_score = metric_max_over_ground_truths(
f1_score, all_set_list, self.data['segmented_answers'])
# print pred_answer_str
# print ('ref_answer',self.data['ref_answers'] )
# print('fake_answers', self.data['fake_answers'])
# print('pre_answer', [''.join(pred_answer_str)])
pred_answer = {
'question_id': self.data['question_id'],
'question_type': self.data['question_type'],
'answers': [''.join(pred_answer_str)]
}
pred_answers.append(pred_answer)
fake_answer = {
'question_id': self.data['question_id'],
'question_type': self.data['question_type'],
'answers': self.data['fake_answers']
}
fake_answers.append(fake_answer)
# pre VS ref
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
value_with_mcts = bleu_rouge
# print 'ref VS pre: '
# print value_with_mcts
# pre VS fac
if len(ref_answers) > 0 and len(fake_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, fake_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
value_with_mcts = bleu_rouge
# print 'pre VS fac: '
# print value_with_mcts
# pre VS fac
if len(ref_answers) > 0 and len(self.data['fake_answers']) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(fake_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
value_with_mcts = bleu_rouge
# print 'fac VS ref: '
# print value_with_mcts
match_score = [
selected_recall_score, selected_f1_score, all_racall_score,
all_f1_score
]
#print ('match_score', match_score)
return pred_answer, fake_answer, match_score
def evaluate(self,
eval_batches,
result_dir=None,
result_prefix=None,
result_name='',
save_full_info=False):
"""
Evaluates the model performance on eval_batches and results are saved if specified
Args:
eval_batches: iterable batch data
result_dir: directory to save predicted answers, answers will not be saved if None
result_prefix: prefix of the file for saving predicted answers,
answers will not be saved if None
save_full_info: if True, the pred_answers will be added to raw sample and saved
"""
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
n_batch_loss = 0.0
n_batch = 0
for b_itx, batch in enumerate(eval_batches, 1):
feed_dict = {
self.p: batch['passage_token_ids'],
self.q: batch['question_token_ids'],
self.p_length: batch['passage_length'],
self.q_length: batch['question_length'],
self.start_label: batch['start_id'],
self.end_label: batch['end_id'],
self.dropout_keep_prob: 1.0
}
if self.debug_print:
if self.simple_net in [0, 5]:
res = self.sess.run([
self.loss, self.p_emb, self.q_emb, self.sep_p_encodes,
self.sep_q_encodes, self.p, self.q, self.start_probs
], feed_dict)
names = 'self.loss, self.p_emb, self.q_emb, self.sep_p_encodes, self.sep_q_encodes, self.p, self.q, self.start_probs'.split(
',')
if self.simple_net in [1, 2]:
res = self.sess.run([
self.loss, self.p_length, self.q_length, self.p_emb,
self.q_emb, self.sep_p_encodes, self.sep_q_encodes,
self.p, self.q, self.match_p_encodes,
self.fuse_p_encodes, self.gm1, self.gm2,
self.start_probs, self.sim_matrix,
self.context2question_attn, self.b,
self.question2context_attn
], feed_dict)
names = 'self.loss, self.p_length, self.q_length, self.p_emb, self.q_emb, self.sep_p_encodes, self.sep_q_encodes, self.p, self.q, self.match_p_encodes, self.fuse_p_encodes, \
self.gm1, self.gm2, self.start_probs, self.sim_matrix, self.context2question_attn, self.b, self.question2context_attn'.split(
',')
if self.simple_net in [3, 4]:
res = self.sess.run([
self.loss, self.start_probs, self.end_probs,
self.loss2, self.start_label, self.end_label,
self.p_length, self.q_length, self.p_emb, self.q_emb,
self.sep_p_encodes, self.sep_q_encodes, self.p, self.q,
self.match_p_encodes, self.fuse_p_encodes,
self.sim_matrix, self.context2question_attn, self.b,
self.question2context_attn, self.pn_init_state,
self.pn_f0, self.pn_f1, self.pn_b0, self.pn_b1
], feed_dict)
names = 'self.loss, self.start_probs, self.end_probs, self.loss2, self.start_label, self.end_label, self.p_length, self.q_length, self.p_emb, self.q_emb, self.sep_p_encodes, self.sep_q_encodes, self.p, self.q, self.match_p_encodes, self.fuse_p_encodes, \
self.sim_matrix, self.context2question_attn, self.b, self.question2context_attn, self.pn_init_state, self.pn_f0, self.pn_f1, self.pn_b0, self.pn_b1'.split(
',')
loss, start_probs, end_probs = res[0:3]
for i in range(1, len(res)):
p_name = names[i]
p_array = res[i]
self.var_print('var', p_array, p_name, p_name)
else:
start_probs, end_probs, loss = self.sess.run(
[self.start_probs, self.end_probs, self.loss], feed_dict)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
n_batch_loss = loss * len(batch['raw_data'])
n_batch += len(batch['raw_data'])
if self.log_interval > 0 and b_itx % self.log_interval == 0:
#self.print_num_of_total_parameters(True, True)
self.logger.info(
'Average dev loss from batch {} to {} is {}'.format(
b_itx - self.log_interval + 1, b_itx,
"%.10f" % (n_batch_loss / n_batch)))
n_batch_loss = 0.0
n_batch = 0
padded_p_len = len(batch['passage_token_ids'][0])
for sample, start_prob, end_prob in zip(batch['raw_data'],
start_probs, end_probs):
best_answer, best_span = self.find_best_answer(
sample, start_prob, end_prob, padded_p_len)
if save_full_info:
sample['pred_answers'] = [best_answer]
pred_answers.append(sample)
else:
pred = {
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': [best_span]
}
pred_answers.append(pred)
if self.debug_print:
self.logger.info('pred=' +
json.dumps(pred, ensure_ascii=False))
if 'answers' in sample:
ref = {
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': [best_span]
}
ref_answers.append(ref)
if self.debug_print:
self.logger.info('ref=' +
json.dumps(ref, ensure_ascii=False))
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir,
result_prefix + result_name + '.json')
with open(result_file, 'w') as fout:
for pred_answer in pred_answers:
fout.write(
json.dumps(pred_answer, ensure_ascii=False) + '\n')
self.logger.info('Saving {} results to {}'.format(
result_prefix, result_file))
#exit()
# this average loss is invalid on test set, since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss, bleu_rouge
def evaluate(self,
eval_batches,
result_dir=None,
result_prefix=None,
save_full_info=False):
"""
Evaluates the model performance on eval_batches and results are saved
if specified
Args:
eval_batches: iterable batch data
result_dir: directory to save predicted answers,
answers will not be saved if None
result_prefix: prefix of the file for saving predicted answers,
answers will not be saved if None
save_full_info: if True, the pred_answers will be added to
raw sample and saved
"""
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
for b_itx, batch in enumerate(eval_batches):
feed_dict = {
self.p: batch['passage_token_ids'],
self.q: batch['question_token_ids'],
self.p_length: batch['passage_length'],
self.q_length: batch['question_length'],
self.start_label: batch['start_id'],
self.end_label: batch['end_id'],
self.dropout_keep_prob: 1.0
}
# evaluate必然是没有dropout的
start_probs, end_probs, loss = self.sess.run(
[self.start_probs, self.end_probs, self.loss], feed_dict)
# self.logger.debug(start_probs)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
padded_p_len = len(batch['passage_token_ids'][0])
# self.p中最长的那个样本的长度？batch['passage_token_ids']应该是个
# 多维的np.ndarray才对，有可能是当list of list来处理，就是第一行,
# 也就是第一个样本
for sample, start_prob, end_prob in zip(batch['raw_data'],
start_probs, end_probs):
best_answer = self.find_best_answer(sample, start_prob,
end_prob, padded_p_len)
# 在做evaluate和test的推测工作时，要这样利用start_prob和end_prob
if save_full_info:
sample['pred_answers'] = [best_answer]
pred_answers.append(sample)
else:
pred_answers.append({
'question_id':
sample['question_id'],
'question_type':
sample['question_type'],
'question':
sample['question'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': []
})
if 'answers' in sample:
ref_answers.append({
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []
})
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w', encoding='utf8') as fout:
for pred_answer in pred_answers:
fout.write(
json.dumps(pred_answer, ensure_ascii=False) + '\n')
self.logger.info('Saving {} results to {}'.format(
result_prefix, result_file))
# this average loss is invalid on test set,
# since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
# 利用utils包，normalize strings to space joined chars
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
# pred_dict是预测值，ref_dict是真实值
# 利用utils包，calculate bleu and rouge metrics
else:
bleu_rouge = None
return ave_loss, bleu_rouge
def evaluate(self, eval_batches, result_dir=None, result_prefix=None):
"""
评估模型在验证集上的表现，如果指定了保存，则将把结果保存
"""
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
count = 0
for b_itx, batch in enumerate(eval_batches):
count += 1
if count % 100 == 0:
self.logger.info(count)
if batch['passage_length'][0] <= 0:
continue
feed_dict = {
self.p: batch['passage_token_ids'],
self.q: batch['question_token_ids'],
self.p_length: batch['passage_length'],
self.q_length: batch['question_length'],
self.start_label: batch['start_id'],
self.end_label: batch['end_id'],
self.dropout_keep_prob: 1.0
}
start_probs, end_probs, loss, fuse_value, context2question_attn, question2context_attn, match_value = self.sess.run(
[
self.start_probs, self.end_probs, self.loss,
self.fuse_value, self.context2question_attn,
self.question2context_attn, self.match_value
], feed_dict)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
padded_p_len = len(batch['passage_token_ids'][0])
for sample, start_prob, end_prob in zip(batch['raw_data'],
start_probs, end_probs):
best_answer, seg_answers, best_score, q2c_match_score, c2q_match_score = self.find_best_answer(
sample, start_prob, end_prob, padded_p_len,
context2question_attn, question2context_attn)
if 'answers' in sample:
ref_answers.append({
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []
})
pred_answers.append({
'question_id':
sample['question_id'],
'question_type':
sample['question_type'],
'question_tokens':
sample['question'],
'ref_answers':
sample['answers'],
'best_score':
str(best_score),
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': [],
'match_value':
str(match_value),
'fuse_value':
str(fuse_value),
'q2c_match_score':
str(q2c_match_score),
'c2q_match_score':
str(c2q_match_score),
'seg_answers': [seg_answers]
})
else:
pred_answers.append({
'question_id':
sample['question_id'],
'question_type':
sample['question_type'],
'question_tokens':
sample['question'],
'answers': [best_answer],
'best_score':
str(best_score),
'match_value':
str(match_value),
'entity_answers': [[]],
'yesno_answers': [],
'fuse_value':
str(fuse_value),
'q2c_match_score':
str(q2c_match_score),
'c2q_match_score':
str(c2q_match_score),
'seg_answers': [seg_answers]
})
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w') as fout:
for pred_answer in pred_answers:
fout.write(
json.dumps(
pred_answer, encoding='utf8', ensure_ascii=False) +
'\n')
self.logger.info('保存 {} 结果到 {}'.format(result_prefix, result_file))
# 该平均损失对于测试集是无效的，因为测试集没有标注答案
ave_loss = 1.0 * total_loss / total_num
# 如果有参考答案，计算bleu和rouge分数
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss, bleu_rouge
def evaluate(self,
eval_batches,
result_dir=None,
result_prefix=None,
save_full_info=False):
"""
Evaluates the model performance on eval_batches and results are saved if specified
Args:
eval_batches: iterable batch data
result_dir: directory to save predicted answers, answers will not be saved if None
result_prefix: prefix of the file for saving predicted answers,
answers will not be saved if None
save_full_info: if True, the pred_answers will be added to raw sample and saved
"""
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
for b_itx, batch in enumerate(eval_batches):
#p_allennlpd = [get_str_num(ids) for ids in batch['passage_token_ids']]
#q_allennlpd = [get_str_num(ids) for ids in batch['question_token_ids']]
#p_allennlpd = get_allennlp_vec(p_allennlpd)
#q_allennlpd = get_allennlp_vec(q_allennlpd) # shape[batch,sequence_len , 3 * 1024 = 3072]
# print(p_allennlpd.shape) # [32 * 5 = 160 , 500 , 3 * 1024 = 3072]
# print(q_allennlpd.shape) # [32 * 5 , 500 , 3 * 1024 = 3072]
feed_dict = {
self.p:
batch['passage_token_ids'],
self.q:
batch['question_token_ids'],
#self.p_allennlp: p_allennlpd,
#self.q_allennlp: q_allennlpd,
self.p_length:
batch['passage_length'],
self.q_length:
batch['question_length'],
self.start_label:
batch['start_id'],
self.end_label:
batch['end_id'],
self.real_pass:
batch['real_pass'],
self.sequence_label:
batch['sequence_label'],
self.dropout_keep_prob:
1.0
}
start_probs, end_probs, yes_probs, pred_pass_probs, loss = self.sess.run(
[
self.start_probs, self.end_probs, self.yes_probs,
self.pred_pass_probs, self.loss
], feed_dict)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
padded_p_len = len(batch['passage_token_ids'][0])
for sample, start_prob, end_prob, yes_prob, pred_pass_prob in zip(
batch['raw_data'], start_probs, end_probs, yes_probs,
pred_pass_probs):
best_answer = self.find_best_answer(sample, start_prob,
end_prob, yes_prob,
pred_pass_prob,
padded_p_len)
if save_full_info:
sample['pred_answers'] = [best_answer]
pred_answers.append(sample)
else:
pred_answers.append({
'question_id':
sample['question_id'],
'question_type':
sample['question_type'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': []
})
if 'answers' in sample:
ref_answers.append({
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []
})
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w') as fout:
for pred_answer in pred_answers:
fout.write(
json.dumps(pred_answer, ensure_ascii=False) + '\n')
self.logger.info('Saving {} results to {}'.format(
result_prefix, result_file))
# this average loss is invalid on test set, since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss, bleu_rouge
def search(self, start_node_id):
#print '----tree search'
tmp_node = self.tree.get_node(start_node_id)
#print tmp_node.data.num
has_visit_num = tmp_node.data.num - 1
self.count = has_visit_num
if int(self.max_search_time - has_visit_num) > 0:
start_node_search_time = int(self.max_search_time - has_visit_num)
else:
start_node_search_time = 0
for tm in range(start_node_search_time):
if tm % 10 == 0:
batch_start_time = time.time()
#print ('search time',tm)
search_list = [start_node_id]
tmp_node = self.tree.get_node(start_node_id)
#print 'search time :'+ str(time)
while not tmp_node.is_leaf():
max_score = float("-inf")
max_id = -1
for child_id in tmp_node.fpointer:
child_node = self.tree.get_node(child_id)
score = self.beta * child_node.data.p * (
(tmp_node.data.num)**0.5 / (1 + child_node.data.num))
#print 'child_node.data.Q: '
#print child_node.data.Q
score += child_node.data.Q
#print 'score: '
#print score
#print '**************'
if score > max_score:
max_id = child_id
max_score = score
search_list.append(max_id)
tmp_node = self.tree.get_node(max_id)
if not tmp_node.data.value == None:
v = tmp_node.data.value
else:
if tmp_node.data.sen[-1] == str(self.l_passages - 1):
pred_answer = tmp_node.data.sen
# print 'search to end pred_answer: '
# print pred_answer
# print 'listSelectedSet'
listSelectedSet_sens = []
listSelectedSet = map(eval, pred_answer)
# print listSelectedSet
for idx in listSelectedSet:
listSelectedSet_sens.append(self.p_sen_list[idx])
# print 'pred_answer '
pred_answer_str = ''
for sen in listSelectedSet_sens:
str123_list = self.carpe_diem.vocab.recover_from_ids(
sen, 0)
for s in str123_list:
pred_answer_str += s
# print 'pred_answer_str: '
# print pred_answer_str
# print 'ref_answer_str: '
# print list2string(self.ref_answer[0]['answers'])
pred_answers = []
pred_answers.append({
'question_id': [self.q_id],
'question_type': [],
'answers': [''.join(pred_answer_str)],
'entity_answers': [[]],
'yesno_answers': []
})
if len(self.ref_answer) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, self.ref_answer):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(
pred['answers'])
ref_dict[question_id] = normalize(
ref['answers'])
# print '========compare in tree======='
# print pred_dict[question_id]
# print '----------------------'
# print ref_dict[question_id]
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
# print 'last words ++++++++++++++ '
# print bleu_rouge
v = input_v = bleu_rouge['Rouge-L'] * self.m_value['Rouge-L'] \
+ bleu_rouge['Bleu-4'] * self.m_value['Bleu-4'] \
+ bleu_rouge['Bleu-1'] * self.m_value['Bleu-1'] \
+ bleu_rouge['Bleu-3'] * self.m_value['Bleu-3'] \
+ bleu_rouge['Bleu-2'] * self.m_value['Bleu-2']
else:
v = self.carpe_diem.value_function(tmp_node.data.sen)[0][0]
tmp_node.data.value = v
# if tmp_node.data.sen[-1] == str(self.l_passages - 1):
# pred_answer = tmp_node.data.sen
# listSelectedSet_sens = []
# listSelectedSet = map(eval, pred_answer)
# # print listSelectedSet
# for idx in listSelectedSet:
# listSelectedSet_sens.append(self.p_sen_list[idx])
# # print 'pred_answer '
# pred_answer_str = ''
# for sen in listSelectedSet_sens:
# str123_list = self.carpe_diem.vocab.recover_from_ids(sen, 0)
# for s in str123_list:
# pred_answer_str += s
#
# pred_answers = []
#
# pred_answers.append({'question_id': [self.q_id],
# 'question_type': [],
# 'answers': [''.join(pred_answer_str)],
# 'entity_answers': [[]],
# 'yesno_answers': []})
# if len(self.ref_answer) > 0:
# pred_dict, ref_dict = {}, {}
# for pred, ref in zip(pred_answers, self.ref_answer):
# question_id = ref['question_id']
# if len(ref['answers']) > 0:
# pred_dict[question_id] = normalize(pred['answers'])
# ref_dict[question_id] = normalize(ref['answers'])
# bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
# else:
# bleu_rouge = None
# v = bleu_rouge['Rouge-L'] * self.m_value['Rouge-L'] \
# + bleu_rouge['Bleu-4'] * self.m_value['Bleu-4'] \
# + bleu_rouge['Bleu-1'] * self.m_value['Bleu-1'] \
# + bleu_rouge['Bleu-3'] * self.m_value['Bleu-3'] \
# + bleu_rouge['Bleu-2'] * self.m_value['Bleu-2']
# else:
# v = self.carpe_diem.value_function(tmp_node.data.sen)[0][0]
self.update(search_list, v)
self.count += 1
if tmp_node.is_leaf() and (
self.tree.depth(tmp_node) < self.max_depth
) and tmp_node.data.sen[-1] != str(self.l_passages - 1):
self.expand(tmp_node)
# if tm %10 == 0:
# print ('==================== search 10 time = %3.2f s ====================' % (time.time() - batch_start_time))
###########
'''
#!/usr/bin/python3
def _analysis(self, step , train_batches, dropout_keep_prob):
"""
Trains the model for a single epoch.
Args:
train_batches: iterable batch data for training
dropout_keep_prob: float value indicating dropout keep probability
"""
total_loss = 0
num_loss = 0
total_recall = [0.0,0.0,0.0,0.0]
num_recall =0
batch_start_time = 0
batch_start_time = time.time()
pred_answers, ref_answers = [], []
fake_answers = []
for fbitx, batch in enumerate(train_batches, 1):
step += 1
if fbitx % 1000 == 0:
print '------ Batch Question: ' + str(fbitx)
trees = []
batch_tree_set = []
batch_size = len(batch['question_ids'])
#print ('batch_size)', batch_size)
for bitx in range(batch_size):
tree = {'question_id': batch['question_ids'][bitx],
'question_token_ids': batch['question_token_ids'][bitx],
'q_length': batch['question_length'][bitx],
'passage_token_ids_list': batch['passage_token_ids_list'][bitx],
'passage_title_token_ids_list': batch['passage_title_token_ids_list'][bitx],
'passage_title_length_list': batch['passage_title_length_list'][bitx],
'passage_sentence_token_ids_list': batch['passage_sentence_token_ids_list'][bitx],
'passage_sen_length': batch['passage_sen_length_list'][bitx],
#'p_length': batch['passage_length'][bitx],
'passage_is_selected_list': batch['passage_is_selected_list'][bitx],
'question_type': batch['question_types'][bitx],
'ref_answers': batch['ref_answers'][bitx],
'fake_answers': batch['fake_answers'][bitx],
'segmented_answers': batch['segmented_answers'][bitx]
}
ref_answers.append({'question_id': tree['question_id'],
'question_type': tree['question_type'],
'answers': tree['ref_answers']})
trees.append(tree)
#print batch
batch_tree = SearchTree(self.tfg, tree, self.max_a_len, self.search_time, self.beta, self.m_value, dropout_keep_prob)
batch_tree_set.append(batch_tree)
# for every data in batch do training process
for idx, batch_tree in enumerate(batch_tree_set,1):
pred_answer, fake_answer, recall = batch_tree.train_analysis(step)
pred_answers.append(pred_answer)
fake_answers.append(fake_answer)
total_recall[0] += recall[0]
total_recall[1] += recall[1]
total_recall[2] += recall[2]
total_recall[3] += recall[3]
num_recall += 1
print('ave select recall', total_recall[0] / num_recall)
print('ave select f1', total_recall[1] / num_recall)
print('ave all recall', total_recall[2] / num_recall)
print('ave all f1', total_recall[3] / num_recall)
ii = 0
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
ii += 1
question_id = ref['question_id']
#print('type', question_id)
if len(ref['answers']) > 0:
ref_dict[question_id] = normalize(ref['answers'])
pred_dict[question_id] = normalize(pred['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
value_with_mcts = bleu_rouge
print ('pre_scor',value_with_mcts)
#return 1.0 * total_loss / num_loss, step
return 0, step
def validation(inference_program, avg_cost, s_probs, e_probs, match,
feed_order, place, dev_count, vocab, brc_data, logger, args):
"""
do inference with given inference_program
"""
parallel_executor = fluid.ParallelExecutor(main_program=inference_program,
use_cuda=bool(args.use_gpu),
loss_name=avg_cost.name)
print_para(inference_program, parallel_executor, logger, args)
# Use test set as validation each pass
total_loss = 0.0
count = 0
n_batch_cnt = 0
n_batch_loss = 0.0
pred_answers, ref_answers = [], []
val_feed_list = [
inference_program.global_block().var(var_name)
for var_name in feed_order
]
val_feeder = fluid.DataFeeder(val_feed_list, place)
pad_id = vocab.get_id(vocab.pad_token)
dev_reader = lambda: brc_data.gen_mini_batches(
'dev', args.batch_size, pad_id, shuffle=False)
dev_reader = read_multiple(dev_reader, dev_count)
for batch_id, batch_list in enumerate(dev_reader(), 1):
feed_data = batch_reader(batch_list, args)
val_fetch_outs = parallel_executor.run(
feed=list(val_feeder.feed_parallel(feed_data, dev_count)),
fetch_list=[avg_cost.name, s_probs.name, e_probs.name, match.name],
return_numpy=False)
total_loss += np.array(val_fetch_outs[0]).sum()
start_probs_m = LodTensor_Array(val_fetch_outs[1])
end_probs_m = LodTensor_Array(val_fetch_outs[2])
match_lod = val_fetch_outs[3].lod()
count += len(np.array(val_fetch_outs[0]))
n_batch_cnt += len(np.array(val_fetch_outs[0]))
n_batch_loss += np.array(val_fetch_outs[0]).sum()
log_every_n_batch = args.log_interval
if log_every_n_batch > 0 and batch_id % log_every_n_batch == 0:
logger.info('Average dev loss from batch {} to {} is {}'.format(
batch_id - log_every_n_batch + 1, batch_id,
"%.10f" % (n_batch_loss / n_batch_cnt)))
n_batch_loss = 0.0
n_batch_cnt = 0
batch_offset = 0
for idx, batch in enumerate(batch_list):
#one batch
batch_size = len(batch['raw_data'])
batch_range = match_lod[0][batch_offset:batch_offset + batch_size +
1]
batch_lod = [[batch_range[x], batch_range[x + 1]]
for x in range(len(batch_range[:-1]))]
start_prob_batch = start_probs_m[batch_offset:batch_offset +
batch_size + 1]
end_prob_batch = end_probs_m[batch_offset:batch_offset +
batch_size + 1]
for sample, start_prob_inst, end_prob_inst, inst_range in zip(
batch['raw_data'], start_prob_batch, end_prob_batch,
batch_lod):
#one instance
inst_lod = match_lod[1][inst_range[0]:inst_range[1] + 1]
best_answer, best_span = find_best_answer_for_inst(
sample, start_prob_inst, end_prob_inst, inst_lod)
pred = {
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': []
}
pred_answers.append(pred)
if 'answers' in sample:
ref = {
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []
}
ref_answers.append(ref)
batch_offset = batch_offset + batch_size
result_dir = args.result_dir
result_prefix = args.result_name
if result_dir is not None and result_prefix is not None:
if not os.path.exists(args.result_dir):
os.makedirs(args.result_dir)
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w') as fout:
for pred_answer in pred_answers:
fout.write(json.dumps(pred_answer, ensure_ascii=False) + '\n')
logger.info('Saving {} results to {}'.format(result_prefix,
result_file))
ave_loss = 1.0 * total_loss / count
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss, bleu_rouge
def do_eval(model, batcher, settings, result_dir=None, result_prefix=None, save_full_info=False):
"""
"""
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
count = 0
while True:
#
batch = batcher.get_next_batch()
if batch is None: break
#
results = model.run_eval_one_batch(batch)
count += 1
print(count)
#
loss = results["loss_optim"]
idx_passage = results["idx_passage"]
idx_start = results["idx_start"]
idx_end = results["idx_end"]
# pred_prob = results["pred_prob"]
#
batch_size = len(idx_passage)
total_loss += loss * batch_size
total_num += batch_size
#
sidx = 0
for sidx in range(batch_size):
#
sample = batch['data_raw'][sidx]
idx_p_curr = idx_passage[sidx]
idx_s_curr = idx_start[sidx]
idx_e_curr = idx_end[sidx]
# prob_curr = pred_prob[sidx]
#
pred_a = ''.join(sample['passages'][idx_p_curr]['passage_tokens'][idx_s_curr: idx_e_curr + 1])
#
if save_full_info:
sample['pred_answers'] = [pred_a]
pred_answers.append(sample)
else:
pred_answers.append({'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': [ pred_a ],
'entity_answers': [[]],
'yesno_answers': []})
if 'answers' in sample:
ref_answers.append({'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []})
#
# saving
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w', encoding="utf-8") as fout:
for pred_answer in pred_answers:
fout.write(json.dumps(pred_answer, ensure_ascii=False) + '\n')
#
model.logger.info('saving {} results to {}'.format(result_prefix, result_file))
#
#
# metric
# this average loss is invalid on test set, since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
#
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
#
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
#
print("ave_loss: %g" % ave_loss)
print("bleu_rouge:")
print(bleu_rouge)
#
model.logger.info('ave_loss: {}'.format(ave_loss))
model.logger.info('bleu_rouge: {}'.format(bleu_rouge))
#
return ave_loss, bleu_rouge
def evaluate(self,
eval_batches,
result_dir=None,
result_prefix=None,
save_full_info=False):
"""
Evaluates the model performance on eval_batches and results are saved if specified
Args:
eval_batches: iterable batch data
result_dir: directory to save predicted answers, answers will not be saved if None
result_prefix: prefix of the file for saving predicted answers,
answers will not be saved if None
save_full_info: if True, the pred_answers will be added to raw sample and saved
"""
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
for b_itx, batch in enumerate(eval_batches):
passage_len = len(batch['passage_token_ids'][0])
label_batch = len(batch['start_id'])
all_passage = len(batch['passage_token_ids'])
concat_passage_len = all_passage / label_batch * passage_len
feed_dict = {
self.p:
batch['passage_token_ids'],
self.q:
batch['question_token_ids'],
self.p_length:
batch['passage_length'],
self.q_length:
batch['question_length'],
self.start_label:
batch['start_id'],
self.end_label:
batch['end_id'],
self.start_label_probs:
self._get_label_probs(batch['start_id'], concat_passage_len),
self.end_label_probs:
self._get_label_probs(batch['end_id'], concat_passage_len),
self.dropout_keep_prob:
1.0
}
if hasattr(self, 'char_vocab'):
char_input = {
self.p_char: batch['passage_char_ids'],
self.q_char: batch['question_char_ids'],
self.p_char_length: batch['passage_char_length'],
self.q_char_length: batch['question_char_length'],
}
feed_dict.update(char_input)
start_probs, end_probs, loss = self.sess.run(
[self.start_probs, self.end_probs, self.loss], feed_dict)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
padded_p_len = len(batch['passage_token_ids'][0])
for sample, start_prob, end_prob in zip(batch['raw_data'],
start_probs, end_probs):
best_answer = self.find_best_answer(sample, start_prob,
end_prob, padded_p_len)
if save_full_info:
sample['pred_answers'] = [best_answer]
pred_answers.append(sample)
else:
pred_answers.append({
'question_id':
sample['question_id'],
'question_type':
sample['question_type'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': []
})
if 'answers' in sample:
ref_answers.append({
'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []
})
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w') as fout:
for pred_answer in pred_answers:
fout.write(
json.dumps(pred_answer, ensure_ascii=False) + '\n')
self.logger.info('Saving {} results to {}'.format(
result_prefix, result_file))
# this average loss is invalid on test set, since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss, bleu_rouge
def evaluate(self, eval_batches, result_dir=None, result_prefix=None, save_full_info=False):
"""
Evaluates the model performance on eval_batches and results are saved if specified
Args:
eval_batches: iterable batch data
result_dir: directory to save predicted answers, answers will not be saved if None
result_prefix: prefix of the file for saving predicted answers,
answers will not be saved if None
save_full_info: if True, the pred_answers will be added to raw sample and saved
"""
pred_answers, ref_answers = [], []
total_loss, total_num = 0, 0
for b_itx, batch in enumerate(eval_batches):
feed_dict = {self.p: batch['passage_token_ids'],
self.q: batch['question_token_ids'],
self.p_length: batch['passage_length'],
self.q_length: batch['question_length'],
self.start_label: batch['start_id'],
self.end_label: batch['end_id'],
self.dropout_keep_prob: 1.0,
self.em: batch['exact_match']}
batch_size = len(batch['start_id'])
padded_p_len = len(batch['passage_token_ids'][0])
padded_p_num = len(batch['passage_token_ids']) / batch_size
para_ids = []
for start_id in batch['start_id']:
para_ids.append(start_id // padded_p_len)
feed_dict[self.para_label] = para_ids
content_label = np.zeros([batch_size, padded_p_num * padded_p_len], dtype=int)
for s_idx, (start_id, end_id) in enumerate(zip(batch['start_id'], batch['end_id'])):
content_label[s_idx, start_id: end_id+1] = 1
feed_dict[self.content_label] = content_label
start_probs, end_probs, content_scores, verif_scores, loss = self.sess.run([self.start_probs, self.end_probs,
self.concat_content_score, self.reshaped_ans_verif_score,
self.loss], feed_dict)
total_loss += loss * len(batch['raw_data'])
total_num += len(batch['raw_data'])
padded_p_len = len(batch['passage_token_ids'][0])
for s_idx, sample in enumerate(batch['raw_data']):
start_prob = start_probs[s_idx]
end_prob = end_probs[s_idx]
content_score = content_scores[s_idx]
verif_score = verif_scores[s_idx]
best_answer = self.find_best_answer_with_verif(sample, start_prob, end_prob,
content_score, verif_score, padded_p_len)
if save_full_info:
sample['pred_answers'] = [best_answer]
pred_answers.append(sample)
else:
pred_answers.append({'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': [best_answer],
'entity_answers': [[]],
'yesno_answers': []})
if 'answers' in sample:
ref_answers.append({'question_id': sample['question_id'],
'question_type': sample['question_type'],
'answers': sample['answers'],
'entity_answers': [[]],
'yesno_answers': []})
if result_dir is not None and result_prefix is not None:
result_file = os.path.join(result_dir, result_prefix + '.json')
with open(result_file, 'w') as fout:
for pred_answer in pred_answers:
fout.write(json.dumps(pred_answer, encoding='utf8', ensure_ascii=False) + '\n')
self.logger.info('Saving {} results to {}'.format(result_prefix, result_file))
# this average loss is invalid on test set, since we don't have true start_id and end_id
ave_loss = 1.0 * total_loss / total_num
# compute the bleu and rouge scores if reference answers is provided
if len(ref_answers) > 0:
pred_dict, ref_dict = {}, {}
for pred, ref in zip(pred_answers, ref_answers):
question_id = ref['question_id']
if len(ref['answers']) > 0:
pred_dict[question_id] = normalize(pred['answers'])
ref_dict[question_id] = normalize(ref['answers'])
bleu_rouge = compute_bleu_rouge(pred_dict, ref_dict)
else:
bleu_rouge = None
return ave_loss, bleu_rouge
