def test_eval(self):
data = DATACQA(
debug=False,
data_dir=self.data_dir
)
test_examples = data.read_examples_test(os.path.join(self.data_dir, 'test.csv'))
print('eval_examples的数量', len(test_examples))
questions = [x.text_a for x in test_examples]
test_features = data.convert_examples_to_features(test_examples, self.tokenizer, self.max_seq_length)
all_input_ids = torch.tensor(data.select_field(test_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(data.select_field(test_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(data.select_field(test_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in test_features], dtype=torch.long)
test_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
# Run prediction for full data
test_sampler = SequentialSampler(test_data)
test_dataloader = DataLoader(test_data, sampler=test_sampler, batch_size=self.eval_batch_size)
config = BertConfig.from_pretrained(self.model_name_or_path, num_labels=self.num_labels)
model = BertForSequenceClassification.from_pretrained(
os.path.join(self.output_dir, "pytorch_model_0.bin"), self.args, config=config)
model.to(self.device)
model.eval()
inference_labels = []
gold_labels = []
scores = []
for input_ids, input_mask, segment_ids, label_ids in test_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
logits = model(
input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask
).detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
scores.append(logits)
inference_labels.append(np.argmax(logits, axis=1))
gold_labels.append(label_ids)
gold_labels = np.concatenate(gold_labels, 0)
scores = np.concatenate(scores, 0)
logits = np.concatenate(inference_labels, 0)
# eval_accuracy = accuracyCQA(inference_logits, gold_labels)
eval_mrr = compute_MRR_CQA(scores, gold_labels, questions)
eval_5R20 = compute_5R20(scores, gold_labels, questions)
print('eval_mrr',eval_mrr)
print('eval_5R20',eval_5R20)
def test_eval(self):
data = DATAUBUNTU(debug=False, data_dir=self.data_dir)
test_examples = data.read_examples(
os.path.join(self.data_dir, 'test.csv'))
print('eval_examples的数量', len(test_examples))
ID = [x.guid for x in test_examples]
test_features = data.convert_examples_to_features(
test_examples, self.tokenizer, self.max_seq_length)
all_input_ids = torch.tensor(data.select_field(test_features,
'input_ids'),
dtype=torch.long)
all_input_mask = torch.tensor(data.select_field(
test_features, 'input_mask'),
dtype=torch.long)
all_segment_ids = torch.tensor(data.select_field(
test_features, 'segment_ids'),
dtype=torch.long)
all_utterance_mask = torch.tensor(data.select_field(
test_features, 'utterance_mask'),
dtype=torch.long)
all_response_mask = torch.tensor(data.select_field(
test_features, 'response_mask'),
dtype=torch.long)
all_history_mask = torch.tensor(data.select_field(
test_features, 'history_mask'),
dtype=torch.long)
all_label = torch.tensor([f.label for f in test_features],
dtype=torch.long)
test_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_utterance_mask,
all_response_mask, all_history_mask,
all_label)
# Run prediction for full data
test_sampler = SequentialSampler(test_data)
test_dataloader = DataLoader(test_data,
sampler=test_sampler,
batch_size=self.eval_batch_size)
config = BertConfig.from_pretrained(self.model_name_or_path,
num_labels=self.num_labels)
model = BertForSequenceClassification.from_pretrained(os.path.join(
self.output_dir, "pytorch_model.bin"),
self.args,
config=config)
model.to(self.device)
model.eval()
inference_labels = []
gold_labels = []
scores = []
for input_ids, input_mask, segment_ids, utterance_mask, response_mask, history_mask, label_ids in test_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
utterance_mask = utterance_mask.to(self.device)
response_mask = response_mask.to(self.device)
history_mask = history_mask.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
logits = model(
input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask,
utterance_mask=utterance_mask,
response_mask=response_mask,
history_mask=history_mask,
).detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
scores.append(logits)
inference_labels.append(np.argmax(logits, axis=1))
gold_labels.append(label_ids)
gold_labels = np.concatenate(gold_labels, 0)
scores = np.concatenate(scores, 0)
logits = np.concatenate(inference_labels, 0)
# 计算评价指标
assert len(ID) == scores.shape[0] == scores.shape[0]
eval_DOUBAN_MRR, eval_DOUBAN_mrr, eval_DOUBAN_MAP, eval_Precision1 = compute_DOUBAN(
ID, scores, gold_labels)
r_at_1 = r_at_k(ID, scores, gold_labels, 1)
r_at_2 = r_at_k(ID, scores, gold_labels, 2)
r_at_5 = r_at_k(ID, scores, gold_labels, 5)
print(
'eval_MRR',
eval_DOUBAN_MRR,
eval_DOUBAN_mrr,
'eval_MAP',
eval_DOUBAN_MAP,
'eval_Precision1',
eval_Precision1,
'r10@1',
r_at_1,
'r10@2',
r_at_2,
'r10@5',
r_at_5,
)
def train(self):
if not os.path.exists(self.output_dir):
os.makedirs(self.output_dir)
# logger.info(f'Fold {split_index + 1}')
train_dataloader, eval_dataloader, train_examples, eval_examples = self.create_dataloader(
)
num_train_optimization_steps = self.train_steps
# Prepare model
config = BertConfig.from_pretrained(self.model_name_or_path,
num_labels=self.num_labels)
model = BertForSequenceClassification.from_pretrained(
self.model_name_or_path, self.args, config=config)
model.to(self.device)
model.train()
# Prepare optimizer
param_optimizer = list(model.named_parameters())
param_optimizer = [n for n in param_optimizer]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params': [
p for n, p in param_optimizer
if not any(nd in n for nd in no_decay)
],
'weight_decay':
self.weight_decay
}, {
'params':
[p for n, p in param_optimizer if any(nd in n for nd in no_decay)],
'weight_decay':
0.0
}]
optimizer = AdamW(optimizer_grouped_parameters,
lr=self.learning_rate,
eps=self.adam_epsilon)
scheduler = WarmupLinearSchedule(optimizer,
warmup_steps=self.warmup_steps,
t_total=self.train_steps)
global_step = 0
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", self.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
best_acc = 0
best_MRR = 0
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
train_dataloader = cycle(train_dataloader)
for step in range(num_train_optimization_steps):
batch = next(train_dataloader)
batch = tuple(t.to(self.device) for t in batch)
input_ids, input_mask, segment_ids, utterance_mask, response_mask, history_mask, label_ids = batch
loss = model(input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask,
utterance_mask=utterance_mask,
response_mask=response_mask,
history_mask=history_mask,
labels=label_ids)
tr_loss += loss.item()
train_loss = round(tr_loss / (nb_tr_steps + 1), 4)
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
loss.backward()
if (nb_tr_steps + 1) % self.gradient_accumulation_steps == 0:
optimizer.step()
optimizer.zero_grad()
scheduler.step()
global_step += 1
if (step + 1) % (self.eval_steps *
self.gradient_accumulation_steps) == 0:
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
logger.info("***** Report result *****")
logger.info(" %s = %s", 'global_step', str(global_step))
logger.info(" %s = %s", 'train loss', str(train_loss))
if self.do_eval and (step + 1) % (
self.eval_steps * self.gradient_accumulation_steps) == 0:
for file in ['dev.csv']:
inference_labels = []
gold_labels = []
inference_logits = []
scores = []
ID = [x.guid for x in eval_examples]
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", self.eval_batch_size)
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for input_ids, input_mask, segment_ids, utterance_mask, response_mask, history_mask, label_ids in eval_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
utterance_mask = utterance_mask.to(self.device)
response_mask = response_mask.to(self.device)
history_mask = history_mask.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
tmp_eval_loss = model(
input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask,
utterance_mask=utterance_mask,
response_mask=response_mask,
history_mask=history_mask,
labels=label_ids)
logits = model(
input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask,
utterance_mask=utterance_mask,
response_mask=response_mask,
history_mask=history_mask,
)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(np.argmax(logits, axis=1))
scores.append(logits)
gold_labels.append(label_ids)
inference_logits.append(logits)
eval_loss += tmp_eval_loss.mean().item()
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
gold_labels = np.concatenate(gold_labels, 0)
inference_logits = np.concatenate(inference_logits, 0)
scores = np.concatenate(scores, 0)
model.train()
eval_loss = eval_loss / nb_eval_steps
eval_accuracy = accuracyCQA(inference_logits, gold_labels)
eval_DOUBAN_MRR, eval_DOUBAN_mrr, eval_DOUBAN_MAP, eval_Precision1 = compute_DOUBAN(
ID, scores, gold_labels)
r_at_1 = r_at_k(ID, scores, gold_labels, 1)
r_at_2 = r_at_k(ID, scores, gold_labels, 2)
r_at_5 = r_at_k(ID, scores, gold_labels, 5)
# print('eval_mrr',eval_mrr)
print('eval_F1', eval_accuracy, 'eval_MRR',
eval_DOUBAN_MRR, 'eval_MAP', eval_DOUBAN_MAP,
'eval_Precision1', eval_Precision1, 'r10@1', r_at_1,
'r10@2', r_at_2, 'r10@5', r_at_5, 'global_step',
global_step, 'loss', train_loss)
result = {
'eval_loss': eval_loss,
'eval_F1': eval_accuracy,
'eval_MRR': eval_DOUBAN_MRR,
'eval_MAP': eval_DOUBAN_MAP,
'eval_Precision1': eval_Precision1,
'r10@1': r_at_1,
'r10@2': r_at_2,
'r10@5': r_at_5,
'global_step': global_step,
'loss': train_loss
}
output_eval_file = os.path.join(self.output_dir,
"eval_results.txt")
with open(output_eval_file, "a") as writer:
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
writer.write('*' * 80)
writer.write('\n')
# if eval_accuracy > best_acc :
if eval_DOUBAN_MRR > best_MRR:
print("=" * 80)
print("Best MRR", eval_DOUBAN_MRR)
print("Saving Model......")
# best_acc = eval_accuracy
best_MRR = eval_DOUBAN_MRR
# Save a trained model
model_to_save = model.module if hasattr(
model, 'module') else model
output_model_file = os.path.join(
self.output_dir, "pytorch_model.bin")
torch.save(model_to_save.state_dict(),
output_model_file)
print("=" * 80)
else:
print("=" * 80)
def test_submission(self):
data = DATACQA(
debug=False,
data_dir=self.data_dir
)
test_examples = data.read_examples_test(os.path.join(self.data_dir, 'test.csv'))
print('eval_examples的数量', len(test_examples))
prediction = np.zeros((len(test_examples),self.num_labels))
gold_labels_ = np.zeros((len(test_examples),self.num_labels))
logits_ = np.zeros((len(test_examples),self.num_labels))
questions = [x.text_a for x in test_examples]
test_features = data.convert_examples_to_features(test_examples, self.tokenizer, self.max_seq_length)
all_input_ids = torch.tensor(data.select_field(test_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(data.select_field(test_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(data.select_field(test_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in test_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=self.eval_batch_size)
for i in range(5):
config = BertConfig.from_pretrained(self.model_name_or_path, num_labels=self.num_labels)
model = BertForSequenceClassification.from_pretrained(
os.path.join(self.output_dir, "pytorch_model_{}.bin".format(i)), self.args, config=config)
model.to(self.device)
model.eval()
inference_labels = []
gold_labels = []
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
logits = model(input_ids=input_ids, token_type_ids=segment_ids,
attention_mask=input_mask).detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(logits)
gold_labels.append(label_ids)
gold_labels = np.concatenate(gold_labels, 0)
gold_labels_ = gold_labels
logits = np.concatenate(inference_labels, 0)
print(logits.shape)
print(prediction.shape)
prediction += logits/5
test_id = [x.guid for x in test_examples]
assert len(test_id) == len(prediction)
# print(accuracyCQA(prediction, gold_labels_))
# print(compute_MRR_CQA(questions))
logits_ = np.argmax(prediction, axis=1)
submission = pd.DataFrame({
'id':test_id,
'predict':logits_
})
submission.to_csv(os.path.join(self.output_dir, "sub.csv"),index=False,header = False)
def train(self):
if not os.path.exists(self.output_dir):
os.makedirs(self.output_dir)
data_splitList = DATACQA.load_data(os.path.join(self.data_dir, 'train.csv'),n_splits=5)
for split_index,each_data in enumerate(data_splitList):
# Prepare model
config = BertConfig.from_pretrained(self.model_name_or_path, num_labels=self.num_labels)
model = BertForSequenceClassification.from_pretrained(self.model_name_or_path, self.args, config=config)
model.to(self.device)
logger.info(f'Fold {split_index + 1}')
train_dataloader, eval_dataloader, train_examples, eval_examples = self.create_dataloader(each_data)
num_train_optimization_steps = self.train_steps
# Prepare optimizer
param_optimizer = list(model.named_parameters())
param_optimizer = [n for n in param_optimizer]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay': self.weight_decay},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
optimizer = AdamW(optimizer_grouped_parameters, lr=self.learning_rate, eps=self.adam_epsilon)
scheduler = WarmupLinearSchedule(optimizer, warmup_steps=self.warmup_steps, t_total=self.train_steps)
global_step = 0
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", self.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
best_acc = 0
model.train()
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
train_dataloader = cycle(train_dataloader)
for step in range(num_train_optimization_steps):
batch = next(train_dataloader)
batch = tuple(t.to(self.device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
loss = model(input_ids=input_ids, token_type_ids=segment_ids, attention_mask=input_mask, labels=label_ids)
tr_loss += loss.item()
train_loss = round(tr_loss / (nb_tr_steps + 1), 4)
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
loss.backward()
if (nb_tr_steps + 1) % self.gradient_accumulation_steps == 0:
scheduler.step()
optimizer.step()
optimizer.zero_grad()
global_step += 1
if (step + 1) % (self.eval_steps * self.gradient_accumulation_steps) == 0:
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
logger.info("***** Report result *****")
logger.info(" %s = %s", 'global_step', str(global_step))
logger.info(" %s = %s", 'train loss', str(train_loss))
if self.do_eval and (step + 1) % (self.eval_steps * self.gradient_accumulation_steps) == 0:
for file in ['dev.csv']:
inference_labels = []
gold_labels = []
inference_logits = []
scores = []
questions = [x.text_a for x in eval_examples]
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", self.eval_batch_size)
# Run prediction for full data
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
tmp_eval_loss = model(
input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask,
labels=label_ids)
logits = model(input_ids=input_ids, token_type_ids=segment_ids, attention_mask=input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(np.argmax(logits, axis=1))
scores.append(logits)
gold_labels.append(label_ids)
inference_logits.append(logits)
eval_loss += tmp_eval_loss.mean().item()
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
gold_labels = np.concatenate(gold_labels, 0)
inference_logits = np.concatenate(inference_logits, 0)
scores = np.concatenate(scores, 0)
model.train()
eval_loss = eval_loss / nb_eval_steps
eval_accuracy = accuracyCQA(inference_logits, gold_labels)
eval_mrr = compute_MRR_CQA(scores,gold_labels,questions)
eval_5R20 = compute_5R20(scores,gold_labels,questions)
result = {'eval_loss': eval_loss,
'eval_F1': eval_accuracy,
'eval_MRR':eval_mrr,
'eval_5R20':eval_5R20,
'global_step': global_step,
'loss': train_loss}
output_eval_file = os.path.join(self.output_dir, "eval_results.txt")
with open(output_eval_file, "a") as writer:
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
writer.write('*' * 80)
writer.write('\n')
if eval_accuracy > best_acc :
print("=" * 80)
print("Best F1", eval_accuracy)
print("Saving Model......")
best_acc = eval_accuracy
# Save a trained model
model_to_save = model.module if hasattr(model,'module') else model
output_model_file = os.path.join(self.output_dir, "pytorch_model_{}.bin".format(split_index))
torch.save(model_to_save.state_dict(), output_model_file)
print("=" * 80)
else:
print("=" * 80)
del model
gc.collect()
def main():
parser = argparse.ArgumentParser()
## Required parameters
parser.add_argument("--data_dir", default=None, type=str, required=True,
help="The input data dir. Should contain the .tsv files (or other data files) for the task.")
parser.add_argument("--model_type", default=None, type=str, required=True,
help="Model type selected in the list: " + ", ".join(MODEL_CLASSES.keys()))
parser.add_argument("--model_name_or_path", default=None, type=str, required=True,
help="Path to pre-trained model or shortcut name selected in the list: " + ", ".join(
ALL_MODELS))
parser.add_argument("--meta_path", default=None, type=str, required=False,
help="Path to pre-trained model or shortcut name selected in the list: " + ", ".join(
ALL_MODELS))
parser.add_argument("--output_dir", default=None, type=str, required=True,
help="The output directory where the model predictions and checkpoints will be written.")
## Other parameters
parser.add_argument("--config_name", default="", type=str,
help="Pretrained config name or path if not the same as model_name")
parser.add_argument("--tokenizer_name", default="", type=str,
help="Pretrained tokenizer name or path if not the same as model_name")
parser.add_argument("--cache_dir", default="", type=str,
help="Where do you want to store the pre-trained models downloaded from s3")
parser.add_argument("--max_seq_length", default=128, type=int,
help="The maximum total input sequence length after tokenization. Sequences longer "
"than this will be truncated, sequences shorter will be padded.")
parser.add_argument("--do_train", action='store_true',
help="Whether to run training.")
parser.add_argument("--do_test", action='store_true',
help="Whether to run training.")
parser.add_argument("--do_eval", action='store_true',
help="Whether to run eval on the dev set.")
parser.add_argument("--evaluate_during_training", action='store_true',
help="Rul evaluation during training at each logging step.")
parser.add_argument("--do_lower_case", action='store_true',
help="Set this flag if you are using an uncased model.")
parser.add_argument("--per_gpu_train_batch_size", default=8, type=int,
help="Batch size per GPU/CPU for training.")
parser.add_argument("--per_gpu_eval_batch_size", default=8, type=int,
help="Batch size per GPU/CPU for evaluation.")
parser.add_argument('--gradient_accumulation_steps', type=int, default=1,
help="Number of updates steps to accumulate before performing a backward/update pass.")
parser.add_argument("--learning_rate", default=5e-5, type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--weight_decay", default=0.0, type=float,
help="Weight deay if we apply some.")
parser.add_argument("--adam_epsilon", default=1e-8, type=float,
help="Epsilon for Adam optimizer.")
parser.add_argument("--max_grad_norm", default=1.0, type=float,
help="Max gradient norm.")
parser.add_argument("--num_train_epochs", default=3.0, type=float,
help="Total number of training epochs to perform.")
parser.add_argument("--max_steps", default=-1, type=int,
help="If > 0: set total number of training steps to perform. Override num_train_epochs.")
parser.add_argument("--eval_steps", default=-1, type=int,
help="")
parser.add_argument("--lstm_hidden_size", default=300, type=int,
help="")
parser.add_argument("--lstm_layers", default=2, type=int,
help="")
parser.add_argument("--lstm_dropout", default=0.5, type=float,
help="")
parser.add_argument("--train_steps", default=-1, type=int,
help="")
parser.add_argument("--report_steps", default=-1, type=int,
help="")
parser.add_argument("--warmup_steps", default=0, type=int,
help="Linear warmup over warmup_steps.")
parser.add_argument("--split_num", default=3, type=int,
help="text split")
parser.add_argument('--logging_steps', type=int, default=50,
help="Log every X updates steps.")
parser.add_argument('--save_steps', type=int, default=50,
help="Save checkpoint every X updates steps.")
parser.add_argument("--eval_all_checkpoints", action='store_true',
help="Evaluate all checkpoints starting with the same prefix as model_name ending and ending with step number")
parser.add_argument("--no_cuda", action='store_true',
help="Avoid using CUDA when available")
parser.add_argument('--overwrite_output_dir', action='store_true',
help="Overwrite the content of the output directory")
parser.add_argument('--overwrite_cache', action='store_true',
help="Overwrite the cached training and evaluation sets")
parser.add_argument('--seed', type=int, default=42,
help="random seed for initialization")
parser.add_argument('--fp16', action='store_true',
help="Whether to use 16-bit (mixed) precision (through NVIDIA apex) instead of 32-bit")
parser.add_argument('--fp16_opt_level', type=str, default='O1',
help="For fp16: Apex AMP optimization level selected in ['O0', 'O1', 'O2', and 'O3']."
"See details at https://nvidia.github.io/apex/amp.html")
parser.add_argument("--local_rank", type=int, default=-1,
help="For distributed training: local_rank")
parser.add_argument('--server_ip', type=str, default='', help="For distant debugging.")
parser.add_argument('--server_port', type=str, default='', help="For distant debugging.")
args = parser.parse_args()
# Setup CUDA, GPU & distributed training
if args.local_rank == -1 or args.no_cuda:
device = torch.device("cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
args.n_gpu = torch.cuda.device_count()
else: # Initializes the distributed backend which will take care of sychronizing nodes/GPUs
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
torch.distributed.init_process_group(backend='nccl')
args.n_gpu = 1
args.device = device
# Setup logging
logging.basicConfig(format='%(asctime)s - %(levelname)s - %(name)s - %(message)s',
datefmt='%m/%d/%Y %H:%M:%S',
level=logging.INFO if args.local_rank in [-1, 0] else logging.WARN)
logger.warning("Process rank: %s, device: %s, n_gpu: %s, distributed training: %s, 16-bits training: %s",
args.local_rank, device, args.n_gpu, bool(args.local_rank != -1), args.fp16)
# Set seed
set_seed(args)
try:
os.makedirs(args.output_dir)
except:
pass
tokenizer = BertTokenizer.from_pretrained(args.model_name_or_path, do_lower_case=args.do_lower_case)
config = BertConfig.from_pretrained(args.model_name_or_path, num_labels=3)
# Prepare model
model = BertForSequenceClassification.from_pretrained(args.model_name_or_path, args, config=config)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif args.n_gpu > 1:
model = torch.nn.DataParallel(model)
args.train_batch_size = args.per_gpu_train_batch_size * max(1, args.n_gpu)
args.eval_batch_size = args.per_gpu_eval_batch_size * max(1, args.n_gpu)
if args.do_train:
# Prepare data loader
train_examples = read_examples(os.path.join(args.data_dir, 'train.csv'), is_training=True)
train_features = convert_examples_to_features(
train_examples, tokenizer, args.max_seq_length, args.split_num, True)
all_input_ids = torch.tensor(select_field(train_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(select_field(train_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(select_field(train_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in train_features], dtype=torch.long)
train_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
if args.local_rank == -1:
train_sampler = RandomSampler(train_data)
else:
train_sampler = DistributedSampler(train_data)
train_dataloader = DataLoader(train_data, sampler=train_sampler,
batch_size=args.train_batch_size // args.gradient_accumulation_steps)
num_train_optimization_steps = args.train_steps
# Prepare optimizer
param_optimizer = list(model.named_parameters())
# hack to remove pooler, which is not used
# thus it produce None grad that break apex
param_optimizer = [n for n in param_optimizer]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay': args.weight_decay},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
optimizer = AdamW(optimizer_grouped_parameters, lr=args.learning_rate, eps=args.adam_epsilon)
scheduler = WarmupLinearSchedule(optimizer, warmup_steps=args.warmup_steps, t_total=args.train_steps)
global_step = 0
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", args.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
best_acc = 0
model.train()
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
train_dataloader = cycle(train_dataloader)
for step in range(num_train_optimization_steps):
batch = next(train_dataloader)
batch = tuple(t.to(device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
loss = model(input_ids=input_ids, token_type_ids=segment_ids, attention_mask=input_mask, labels=label_ids)
if args.n_gpu > 1:
loss = loss.mean() # mean() to average on multi-gpu.
if args.fp16 and args.loss_scale != 1.0:
loss = loss * args.loss_scale
if args.gradient_accumulation_steps > 1:
loss = loss / args.gradient_accumulation_steps
tr_loss += loss.item()
train_loss = round(tr_loss * args.gradient_accumulation_steps / (nb_tr_steps + 1), 4)
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
if args.fp16:
optimizer.backward(loss)
else:
loss.backward()
if (nb_tr_steps + 1) % args.gradient_accumulation_steps == 0:
if args.fp16:
# modify learning rate with special warm up BERT uses
# if args.fp16 is False, BertAdam is used that handles this automatically
lr_this_step = args.learning_rate * warmup_linear.get_lr(global_step, args.warmup_proportion)
for param_group in optimizer.param_groups:
param_group['lr'] = lr_this_step
scheduler.step()
optimizer.step()
optimizer.zero_grad()
global_step += 1
if (step + 1) % (args.eval_steps * args.gradient_accumulation_steps) == 0:
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
logger.info("***** Report result *****")
logger.info(" %s = %s", 'global_step', str(global_step))
logger.info(" %s = %s", 'train loss', str(train_loss))
if args.do_eval and (step + 1) % (args.eval_steps * args.gradient_accumulation_steps) == 0:
for file in ['dev.csv']:
inference_labels = []
gold_labels = []
inference_logits = []
eval_examples = read_examples(os.path.join(args.data_dir, file), is_training=True)
eval_features = convert_examples_to_features(eval_examples, tokenizer, args.max_seq_length,
args.split_num, False)
all_input_ids = torch.tensor(select_field(eval_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(select_field(eval_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(select_field(eval_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in eval_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", args.eval_batch_size)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=args.eval_batch_size)
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
tmp_eval_loss = model(input_ids=input_ids, token_type_ids=segment_ids,
attention_mask=input_mask, labels=label_ids)
logits = model(input_ids=input_ids, token_type_ids=segment_ids, attention_mask=input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(np.argmax(logits, axis=1))
gold_labels.append(label_ids)
inference_logits.append(logits)
eval_loss += tmp_eval_loss.mean().item()
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
gold_labels = np.concatenate(gold_labels, 0)
inference_logits = np.concatenate(inference_logits, 0)
model.train()
eval_loss = eval_loss / nb_eval_steps
eval_accuracy = accuracy(inference_logits, gold_labels)
result = {'eval_loss': eval_loss,
'eval_F1': eval_accuracy,
'global_step': global_step,
'loss': train_loss}
output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
with open(output_eval_file, "a") as writer:
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
writer.write('*' * 80)
writer.write('\n')
if eval_accuracy > best_acc and 'dev' in file:
print("=" * 80)
print("Best F1", eval_accuracy)
print("Saving Model......")
best_acc = eval_accuracy
# Save a trained model
model_to_save = model.module if hasattr(model,
'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, "pytorch_model.bin")
torch.save(model_to_save.state_dict(), output_model_file)
print("=" * 80)
else:
print("=" * 80)
if args.do_test:
del model
gc.collect()
args.do_train = False
model = BertForSequenceClassification.from_pretrained(os.path.join(args.output_dir, "pytorch_model.bin"), args,
config=config)
if args.fp16:
model.half()
model.to(device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif args.n_gpu > 1:
model = torch.nn.DataParallel(model)
for file, flag in [('dev.csv', 'dev'), ('test.csv', 'test')]:
# for file, flag in [ ('test.csv', 'test')]:
inference_labels = []
gold_labels = []
eval_examples = read_examples(os.path.join(args.data_dir, file), is_training=False)
print('exa',len(eval_examples))
# exit()
eval_features = convert_examples_to_features(eval_examples, tokenizer, args.max_seq_length, args.split_num,
False)
all_input_ids = torch.tensor(select_field(eval_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(select_field(eval_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(select_field(eval_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in eval_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=args.eval_batch_size)
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(device)
input_mask = input_mask.to(device)
segment_ids = segment_ids.to(device)
label_ids = label_ids.to(device)
with torch.no_grad():
logits = model(input_ids=input_ids, token_type_ids=segment_ids,
attention_mask=input_mask).detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(logits)
gold_labels.append(label_ids)
gold_labels = np.concatenate(gold_labels, 0)
logits = np.concatenate(inference_labels, 0)
if flag == 'dev':
print(flag, accuracy(logits, gold_labels))
if flag == 'test':
df = pd.read_csv(os.path.join(args.data_dir, file),names = ['id', 'content', 'title', 'label'])
predict = np.argmax(logits, axis=1).tolist()
print(df.shape[0])
print(len(predict))
df['labelpre'] = predict
df[['id','labelpre']].to_csv(os.path.join(args.output_dir, "sub.csv"),index=False,header = False)
def train(self):
if not os.path.exists(self.output_dir):
os.makedirs(self.output_dir)
# Prepare model
config = BertConfig.from_pretrained(self.model_name_or_path,
num_labels=3)
model = BertForSequenceClassification.from_pretrained(
self.model_name_or_path, self.args, config=config)
model.to(self.device)
data_splitList = DATABDCI.load_data(os.path.join(
self.data_dir, 'train.csv'),
n_splits=5)
for split_index, each_data in enumerate(data_splitList):
logger.info(f'Fold {split_index + 1}')
train_dataloader, eval_dataloader, train_examples, eval_examples = self.create_dataloader(
each_data)
num_train_optimization_steps = self.train_steps
# Prepare optimizer
param_optimizer = list(model.named_parameters())
param_optimizer = [n for n in param_optimizer]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [{
'params': [
p for n, p in param_optimizer
if not any(nd in n for nd in no_decay)
],
'weight_decay':
self.weight_decay
}, {
'params': [
p for n, p in param_optimizer
if any(nd in n for nd in no_decay)
],
'weight_decay':
0.0
}]
optimizer = AdamW(optimizer_grouped_parameters,
lr=self.learning_rate,
eps=self.adam_epsilon)
scheduler = WarmupLinearSchedule(optimizer,
warmup_steps=self.warmup_steps,
t_total=self.train_steps)
global_step = 0
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", self.train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
best_acc = 0
model.train()
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
train_dataloader = cycle(train_dataloader)
for step in range(num_train_optimization_steps):
batch = next(train_dataloader)
batch = tuple(t.to(self.device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
loss = model(input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask,
labels=label_ids)
tr_loss += loss.item()
train_loss = round(tr_loss / (nb_tr_steps + 1), 4)
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
loss.backward()
if (nb_tr_steps + 1) % self.gradient_accumulation_steps == 0:
scheduler.step()
optimizer.step()
optimizer.zero_grad()
global_step += 1
if (step + 1) % (self.eval_steps *
self.gradient_accumulation_steps) == 0:
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
logger.info("***** Report result *****")
logger.info(" %s = %s", 'global_step', str(global_step))
logger.info(" %s = %s", 'train loss', str(train_loss))
if self.do_eval and (
step + 1) % (self.eval_steps *
self.gradient_accumulation_steps) == 0:
for file in ['dev.csv']:
inference_labels = []
gold_labels = []
inference_logits = []
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", self.eval_batch_size)
# Run prediction for full data
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
tmp_eval_loss = model(
input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask,
labels=label_ids)
logits = model(input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(np.argmax(logits, axis=1))
gold_labels.append(label_ids)
inference_logits.append(logits)
eval_loss += tmp_eval_loss.mean().item()
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
gold_labels = np.concatenate(gold_labels, 0)
inference_logits = np.concatenate(inference_logits, 0)
model.train()
eval_loss = eval_loss / nb_eval_steps
eval_accuracy = accuracyBDCI(inference_logits,
gold_labels)
result = {
'eval_loss': eval_loss,
'eval_F1': eval_accuracy,
'global_step': global_step,
'loss': train_loss
}
output_eval_file = os.path.join(
self.output_dir, "eval_results.txt")
with open(output_eval_file, "a") as writer:
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" %
(key, str(result[key])))
writer.write('*' * 80)
writer.write('\n')
if eval_accuracy > best_acc and 'dev' in file:
print("=" * 80)
print("Best F1", eval_accuracy)
print("Saving Model......")
best_acc = eval_accuracy
# Save a trained model
model_to_save = model.module if hasattr(
model, 'module') else model
output_model_file = os.path.join(
self.output_dir,
"pytorch_model_{}.bin".format(split_index))
torch.save(model_to_save.state_dict(),
output_model_file)
print("=" * 80)
else:
print("=" * 80)
if self.do_test:
del model
gc.collect()
self.do_train = False
data = DATABDCI(debug=False,
data_dir='/home/lsy2018/文本匹配/DATA/DATA_BDCI/',
data_process_output=
'/home/lsy2018/文本匹配/DATA/DATA_BDCI/data_1014/')
model = BertForSequenceClassification.from_pretrained(
os.path.join(self.output_dir, "pytorch_model.bin"),
self.args,
config=config)
model.to(self.device)
for file, flag in [('dev.csv', 'dev'), ('test.csv', 'test')]:
inference_labels = []
gold_labels = []
eval_examples = data.read_examples(os.path.join(
self.data_dir, file),
is_training=False)
print('exa', len(eval_examples))
eval_features = data.convert_examples_to_features(
eval_examples, self.tokenizer, self.max_seq_length)
all_input_ids = torch.tensor(data.select_field(
eval_features, 'input_ids'),
dtype=torch.long)
all_input_mask = torch.tensor(data.select_field(
eval_features, 'input_mask'),
dtype=torch.long)
all_segment_ids = torch.tensor(data.select_field(
eval_features, 'segment_ids'),
dtype=torch.long)
all_label = torch.tensor([f.label for f in eval_features],
dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask,
all_segment_ids, all_label)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data,
sampler=eval_sampler,
batch_size=self.eval_batch_size)
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
logits = model(
input_ids=input_ids,
token_type_ids=segment_ids,
attention_mask=input_mask).detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(logits)
gold_labels.append(label_ids)
gold_labels = np.concatenate(gold_labels, 0)
logits = np.concatenate(inference_labels, 0)
if flag == 'dev':
print(flag, accuracyBDCI(logits, gold_labels))
if flag == 'test':
df = pd.read_csv(os.path.join(self.data_dir, file),
names=['id', 'content', 'title', 'label'])
predict = np.argmax(logits, axis=1).tolist()
print(df.shape[0])
print(len(predict))
df['labelpre'] = predict
df[['id', 'labelpre'
]].to_csv(os.path.join(self.output_dir, "sub.csv"),
index=False,
header=False)
def train(self):
try:
os.makedirs(args.output_dir)
except:
pass
tokenizer = BertTokenizer.from_pretrained(self.model_name_or_path, do_lower_case=self.do_lower_case)
config = BertConfig.from_pretrained(self.model_name_or_path, num_labels=3)
# Prepare model
model = BertForSequenceClassification.from_pretrained(self.model_name_or_path, args, config=config)
model.to(self.device)
train_batch_size = self.per_gpu_train_batch_size
eval_batch_size = self.per_gpu_eval_batch_size
for i in range(1):
# Prepare data loader
train_examples = self.read_examples(os.path.join(self.data_dir, 'train.csv'), is_training=True)
train_features = self.convert_examples_to_features(
train_examples, tokenizer, self.max_seq_length)
all_input_ids = torch.tensor(self.select_field(train_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(self.select_field(train_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(self.select_field(train_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in train_features], dtype=torch.long)
train_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
train_sampler = RandomSampler(train_data)
train_dataloader = DataLoader(train_data, sampler=train_sampler,batch_size=train_batch_size )
num_train_optimization_steps = self.train_steps
# Prepare optimizer
param_optimizer = list(model.named_parameters())
# hack to remove pooler, which is not used
# thus it produce None grad that break apex
param_optimizer = [n for n in param_optimizer]
no_decay = ['bias', 'LayerNorm.bias', 'LayerNorm.weight']
optimizer_grouped_parameters = [
{'params': [p for n, p in param_optimizer if not any(nd in n for nd in no_decay)],
'weight_decay': args.weight_decay},
{'params': [p for n, p in param_optimizer if any(nd in n for nd in no_decay)], 'weight_decay': 0.0}
]
optimizer = AdamW(optimizer_grouped_parameters, lr=self.learning_rate, eps=self.adam_epsilon)
scheduler = WarmupLinearSchedule(optimizer, warmup_steps=self.warmup_steps, t_total=self.train_steps)
global_step = 0
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(train_examples))
logger.info(" Batch size = %d", train_batch_size)
logger.info(" Num steps = %d", num_train_optimization_steps)
best_acc = 0
model.train()
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
train_dataloader = cycle(train_dataloader)
for step in range(num_train_optimization_steps):
batch = next(train_dataloader)
batch = tuple(t.to(self.device) for t in batch)
input_ids, input_mask, segment_ids, label_ids = batch
loss = model(input_ids=input_ids, token_type_ids=segment_ids, attention_mask=input_mask, labels=label_ids)
tr_loss += loss.item()
train_loss = round(tr_loss / (nb_tr_steps + 1), 4)
nb_tr_examples += input_ids.size(0)
nb_tr_steps += 1
loss.backward()
if (nb_tr_steps + 1) % self.gradient_accumulation_steps == 0:
scheduler.step()
optimizer.step()
optimizer.zero_grad()
global_step += 1
if (step + 1) % (self.eval_steps * self.gradient_accumulation_steps) == 0:
tr_loss = 0
nb_tr_examples, nb_tr_steps = 0, 0
logger.info("***** Report result *****")
logger.info(" %s = %s", 'global_step', str(global_step))
logger.info(" %s = %s", 'train loss', str(train_loss))
if self.do_eval and (step + 1) % (self.eval_steps * self.gradient_accumulation_steps) == 0:
for file in ['dev.csv']:
inference_labels = []
gold_labels = []
inference_logits = []
eval_examples = self.read_examples(os.path.join(self.data_dir, file), is_training=True)
eval_features = self.convert_examples_to_features(eval_examples, tokenizer, self.max_seq_length)
all_input_ids = torch.tensor(self.select_field(eval_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(self.select_field(eval_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(self.select_field(eval_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in eval_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
logger.info("***** Running evaluation *****")
logger.info(" Num examples = %d", len(eval_examples))
logger.info(" Batch size = %d", eval_batch_size)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=eval_batch_size)
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
tmp_eval_loss = model(input_ids=input_ids, token_type_ids=segment_ids,
attention_mask=input_mask, labels=label_ids)
logits = model(input_ids=input_ids, token_type_ids=segment_ids, attention_mask=input_mask)
logits = logits.detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(np.argmax(logits, axis=1))
gold_labels.append(label_ids)
inference_logits.append(logits)
eval_loss += tmp_eval_loss.mean().item()
nb_eval_examples += input_ids.size(0)
nb_eval_steps += 1
gold_labels = np.concatenate(gold_labels, 0)
inference_logits = np.concatenate(inference_logits, 0)
model.train()
eval_loss = eval_loss / nb_eval_steps
eval_accuracy = self.accuracy(inference_logits, gold_labels)
result = {'eval_loss': eval_loss,
'eval_F1': eval_accuracy,
'global_step': global_step,
'loss': train_loss}
output_eval_file = os.path.join(self.output_dir, "eval_results.txt")
with open(output_eval_file, "a") as writer:
for key in sorted(result.keys()):
logger.info(" %s = %s", key, str(result[key]))
writer.write("%s = %s\n" % (key, str(result[key])))
writer.write('*' * 80)
writer.write('\n')
if eval_accuracy > best_acc and 'dev' in file:
print("=" * 80)
print("Best F1", eval_accuracy)
print("Saving Model......")
best_acc = eval_accuracy
# Save a trained model
model_to_save = model.module if hasattr(model,
'module') else model # Only save the model it-self
output_model_file = os.path.join(args.output_dir, "pytorch_model.bin")
torch.save(model_to_save.state_dict(), output_model_file)
print("=" * 80)
else:
print("=" * 80)
if args.do_test:
del model
gc.collect()
args.do_train = False
model = BertForSequenceClassification.from_pretrained(os.path.join(args.output_dir, "pytorch_model.bin"), args,
config=config)
if args.fp16:
model.half()
model.to(self.device)
if args.local_rank != -1:
try:
from apex.parallel import DistributedDataParallel as DDP
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use distributed and fp16 training.")
model = DDP(model)
elif args.n_gpu > 1:
model = torch.nn.DataParallel(model)
for file, flag in [('dev.csv', 'dev'), ('test.csv', 'test')]:
# for file, flag in [ ('test.csv', 'test')]:
inference_labels = []
gold_labels = []
eval_examples = self.read_examples(os.path.join(args.data_dir, file), is_training=False)
print('exa',len(eval_examples))
# exit()
eval_features = self.convert_examples_to_features(eval_examples, tokenizer, args.max_seq_length)
all_input_ids = torch.tensor(self.select_field(eval_features, 'input_ids'), dtype=torch.long)
all_input_mask = torch.tensor(self.select_field(eval_features, 'input_mask'), dtype=torch.long)
all_segment_ids = torch.tensor(self.select_field(eval_features, 'segment_ids'), dtype=torch.long)
all_label = torch.tensor([f.label for f in eval_features], dtype=torch.long)
eval_data = TensorDataset(all_input_ids, all_input_mask, all_segment_ids, all_label)
# Run prediction for full data
eval_sampler = SequentialSampler(eval_data)
eval_dataloader = DataLoader(eval_data, sampler=eval_sampler, batch_size=eval_batch_size)
model.eval()
eval_loss, eval_accuracy = 0, 0
nb_eval_steps, nb_eval_examples = 0, 0
for input_ids, input_mask, segment_ids, label_ids in eval_dataloader:
input_ids = input_ids.to(self.device)
input_mask = input_mask.to(self.device)
segment_ids = segment_ids.to(self.device)
label_ids = label_ids.to(self.device)
with torch.no_grad():
logits = model(input_ids=input_ids, token_type_ids=segment_ids,
attention_mask=input_mask).detach().cpu().numpy()
label_ids = label_ids.to('cpu').numpy()
inference_labels.append(logits)
gold_labels.append(label_ids)
gold_labels = np.concatenate(gold_labels, 0)
logits = np.concatenate(inference_labels, 0)
if flag == 'dev':
print(flag,self.accuracy(logits, gold_labels))
if flag == 'test':
df = pd.read_csv(os.path.join(args.data_dir, file),names = ['id', 'content', 'title', 'label'])
predict = np.argmax(logits, axis=1).tolist()
print(df.shape[0])
print(len(predict))
df['labelpre'] = predict
df[['id','labelpre']].to_csv(os.path.join(args.output_dir, "sub.csv"),index=False,header = False)