def create_and_check_model_as_decoder(
self,
config,
input_ids,
token_type_ids,
input_mask,
sequence_labels,
token_labels,
choice_labels,
encoder_hidden_states,
encoder_attention_mask,
):
config.add_cross_attention = True
model = BertModel(config)
model.to(torch_device)
model.eval()
result = model(
input_ids,
attention_mask=input_mask,
token_type_ids=token_type_ids,
encoder_hidden_states=encoder_hidden_states,
encoder_attention_mask=encoder_attention_mask,
)
result = model(
input_ids,
attention_mask=input_mask,
token_type_ids=token_type_ids,
encoder_hidden_states=encoder_hidden_states,
)
result = model(input_ids, attention_mask=input_mask, token_type_ids=token_type_ids)
self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, self.seq_length, self.hidden_size))
self.parent.assertEqual(result.pooler_output.shape, (self.batch_size, self.hidden_size))
def create_and_check_bert_model_as_decoder(self, config, input_ids,
token_type_ids, input_mask,
sequence_labels,
token_labels, choice_labels,
encoder_hidden_states,
encoder_attention_mask):
model = BertModel(config)
model.eval()
sequence_output, pooled_output = model(
input_ids,
attention_mask=input_mask,
token_type_ids=token_type_ids,
encoder_hidden_states=encoder_hidden_states,
encoder_attention_mask=encoder_attention_mask)
sequence_output, pooled_output = model(
input_ids,
attention_mask=input_mask,
token_type_ids=token_type_ids,
encoder_hidden_states=encoder_hidden_states)
sequence_output, pooled_output = model(
input_ids,
attention_mask=input_mask,
token_type_ids=token_type_ids)
result = {
"sequence_output": sequence_output,
"pooled_output": pooled_output,
}
self.parent.assertListEqual(
list(result["sequence_output"].size()),
[self.batch_size, self.seq_length, self.hidden_size])
self.parent.assertListEqual(list(result["pooled_output"].size()),
[self.batch_size, self.hidden_size])
def get_kobert_model(model_file, vocab_file, ctx="cpu"):
bertmodel = BertModel(config=BertConfig.from_dict(bert_config))
bertmodel.load_state_dict(torch.load(model_file), strict=False)
device = torch.device(ctx)
bertmodel.to(device)
bertmodel.eval()
vocab_b_obj = nlp.vocab.BERTVocab.from_json(open(vocab_file, 'rt').read())
return bertmodel, vocab_b_obj
def get_kobert_model(model_file, vocab_file, ctx="cpu"):
bertmodel = BertModel(config=BertConfig.from_dict(bert_config))
bertmodel.load_state_dict(torch.load(model_file))
device = torch.device(ctx)
bertmodel.to(device)
bertmodel.eval()
vocab_b_obj = nlp.vocab.BERTVocab.from_sentencepiece(vocab_file,
padding_token='[PAD]')
return bertmodel, vocab_b_obj
def create_and_check_bert_model(self, config, input_ids,
token_type_ids, input_mask,
sequence_labels, token_labels,
choice_labels):
model = BertModel(config=config)
model.to(input_ids.device)
model.eval()
sequence_output, pooled_output = model(
input_ids,
attention_mask=input_mask,
token_type_ids=token_type_ids)
# failed because there is not loss output
model_desc = ModelDescription([
self.input_ids_desc, self.attention_mask_desc,
self.token_type_ids_desc
], [self.last_hidden_state_desc, self.pooler_output_desc])
args_gradient_accumulation_steps = 8
args_local_rank = 0
args_world_size = 1
args_fp16 = True
args_allreduce_post_accumulation = True
model = ORTTrainer(
model,
None,
model_desc,
"LambOptimizer",
map_optimizer_attributes=map_optimizer_attributes,
learning_rate_description=IODescription(
'Learning_Rate', [
1,
], torch.float32),
device=self.device,
postprocess_model=postprocess_model,
gradient_accumulation_steps=args_gradient_accumulation_steps,
world_rank=args_local_rank,
world_size=args_world_size,
use_mixed_precision=True if args_fp16 else False,
allreduce_post_accumulation=True
if args_allreduce_post_accumulation else False)
sequence_output, pooled_output = model(
input_ids, token_type_ids=token_type_ids)
sequence_output, pooled_output = model(input_ids)
result = {
"sequence_output": sequence_output,
"pooled_output": pooled_output,
}
self.parent.assertListEqual(
list(result["sequence_output"].size()),
[self.batch_size, self.seq_length, self.hidden_size])
self.parent.assertListEqual(list(result["pooled_output"].size()),
[self.batch_size, self.hidden_size])
def main():
# Env
use_gpu=False
#torch.cuda.is_available()
# batchsize = [1,4,8,16,32,64,128,256]
# Data Augment
input_np = np.random.randint(1000, size=(1,512))
input_ids=torch.from_numpy(input_np).long()
attention_mask=torch.zeros(1, 512).long()
token_type_ids=torch.ones(1, 512).long()
if use_gpu:
input_ids=input_ids.cuda()
attention_mask=attention_mask.cuda()
token_type_ids=token_type_ids.cuda()
# Model Prepare
configuration = BertConfig(vocab_size=30522, hidden_size=768, num_hudden_layers=12,
num_attention_heads=12, intermediate_size=3072,
hidden_act='gelu', hidden_dropout_prob=0.1,
attention_probs_dropout_prob=0.1,
max_position_embeddings=512, type_vocab_size=2,
initializer_range=0.02, layer_norm_eps=1e-12,
pad_token_id=0, gradient_checkpointing=False)
if use_gpu:
model = BertModel(configuration).cuda()
else:
model = BertModel(configuration)
# Eval with Speed Record
model.eval()
t1 = time.time()
with torch.no_grad():
for i in range(512):
print(i)
output = model(input_ids=input_ids, attention_mask=attention_mask, token_type_ids=token_type_ids)
print('val_time = {:.6f}'.format(time.time() - t1))
def create_and_check_bert_model(self, config, input_ids, token_type_ids,
input_mask, sequence_labels, token_labels,
choice_labels):
model = BertModel(config=config)
model.to(torch_device)
model.eval()
result = model(input_ids,
attention_mask=input_mask,
token_type_ids=token_type_ids)
result = model(input_ids, token_type_ids=token_type_ids)
result = model(input_ids)
self.parent.assertEqual(
result.last_hidden_state.shape,
(self.batch_size, self.seq_length, self.hidden_size))
self.parent.assertEqual(result.pooler_output.shape,
(self.batch_size, self.hidden_size))
def _load_bert(self, bert_config_path: str, bert_model_path: str):
bert_config = BertConfig.from_json_file(bert_config_path)
model = BertModel(bert_config)
if self.cuda:
model_states = torch.load(bert_model_path)
else:
model_states = torch.load(bert_model_path, map_location='cpu')
# fix model_states
for k in list(model_states.keys()):
if k.startswith("bert."):
model_states[k[5:]] = model_states.pop(k)
elif k.startswith("cls"):
_ = model_states.pop(k)
if k[-4:] == "beta":
model_states[k[:-4]+"bias"] = model_states.pop(k)
if k[-5:] == "gamma":
model_states[k[:-5]+"weight"] = model_states.pop(k)
model.load_state_dict(model_states)
if self.cuda:
model.cuda()
model.eval()
return model
def main(args, _=None):
batch_size = args.batch_size
num_workers = args.num_workers
max_length = args.max_length
pooling_groups = args.pooling.split(",")
utils.set_global_seed(args.seed)
utils.prepare_cudnn(args.deterministic, args.benchmark)
model_config = BertConfig.from_pretrained(args.in_config)
model_config.output_hidden_states = args.output_hidden_states
model = BertModel(config=model_config)
checkpoint = utils.load_checkpoint(args.in_model)
checkpoint = {"model_state_dict": checkpoint}
utils.unpack_checkpoint(checkpoint=checkpoint, model=model)
model = model.eval()
model, _, _, _, device = utils.process_components(model=model)
tokenizer = BertTokenizer.from_pretrained(args.in_vocab)
df = pd.read_csv(args.in_csv)
df = df.dropna(subset=[args.txt_col])
df.to_csv(f"{args.out_prefix}.df.csv", index=False)
df = df.reset_index().drop("index", axis=1)
df = list(df.to_dict("index").values())
num_samples = len(df)
open_fn = LambdaReader(
input_key=args.txt_col,
output_key=None,
lambda_fn=get_features,
tokenizer=tokenizer,
max_length=max_length,
)
dataloader = utils.get_loader(
df,
open_fn,
batch_size=batch_size,
num_workers=num_workers,
)
features = {}
poolings = {}
dataloader = tqdm(dataloader) if args.verbose else dataloader
with torch.no_grad():
for idx, batch in enumerate(dataloader):
batch = utils.any2device(batch, device)
features_ = model(**batch)
# create storage based on network output
if idx == 0:
# class
_, embedding_size = features_[1].shape
features["class"] = np.memmap(
f"{args.out_prefix}.class.npy",
dtype=np.float32,
mode="w+",
shape=(num_samples, embedding_size),
)
if args.output_hidden_states:
# all embeddings
for i, feature_ in enumerate(features_[2]):
name_ = f"embeddings_{i + 1:02d}"
_, _, embedding_size = feature_.shape
poolings[name_] = LamaPooling(
features_in=embedding_size,
groups=pooling_groups,
)
features[name_] = np.memmap(
f"{args.out_prefix}.{name_}.npy",
dtype=np.float32,
mode="w+",
shape=(num_samples, embedding_size),
)
else:
# last
_, _, embedding_size = features_[0].shape
poolings["last"] = LamaPooling(
features_in=embedding_size,
groups=pooling_groups,
)
features["last"] = np.memmap(
f"{args.out_prefix}.last.npy",
dtype=np.float32,
mode="w+",
shape=(num_samples, embedding_size),
)
indices = np.arange(idx * batch_size,
min((idx + 1) * batch_size, num_samples))
features["class"][indices] = _detach(features_[1])
if args.output_hidden_states:
# all embeddings
for i, feature_ in enumerate(features_[2]):
name_ = f"embeddings_{i + 1:02d}"
feature_ = poolings[name_](feature_)
features[name_][indices] = _detach(feature_)
else:
feature_ = poolings[name_](features_[0])
features["last"][indices] = _detach(feature_)
def main(args, _=None):
"""Run the ``catalyst-contrib text2embeddings`` script."""
batch_size = args.batch_size
num_workers = args.num_workers
max_length = args.max_length
pooling_groups = args.pooling.split(",")
bert_level = args.bert_level
if bert_level is not None:
assert (args.output_hidden_states
), "You need hidden states output for level specification"
set_global_seed(args.seed)
prepare_cudnn(args.deterministic, args.benchmark)
if getattr(args, "in_huggingface", False):
model_config = BertConfig.from_pretrained(args.in_huggingface)
model_config.output_hidden_states = args.output_hidden_states
model = BertModel.from_pretrained(args.in_huggingface,
config=model_config)
tokenizer = BertTokenizer.from_pretrained(args.in_huggingface)
else:
model_config = BertConfig.from_pretrained(args.in_config)
model_config.output_hidden_states = args.output_hidden_states
model = BertModel(config=model_config)
tokenizer = BertTokenizer.from_pretrained(args.in_vocab)
if getattr(args, "in_model", None) is not None:
checkpoint = load_checkpoint(args.in_model)
checkpoint = {"model_state_dict": checkpoint}
unpack_checkpoint(checkpoint=checkpoint, model=model)
model = model.eval()
model, _, _, _, device = process_components(model=model)
df = pd.read_csv(args.in_csv)
df = df.dropna(subset=[args.txt_col])
df.to_csv(f"{args.out_prefix}.df.csv", index=False)
df = df.reset_index().drop("index", axis=1)
df = list(df.to_dict("index").values())
num_samples = len(df)
open_fn = LambdaReader(
input_key=args.txt_col,
output_key=None,
lambda_fn=partial(
tokenize_text,
strip=args.strip,
lowercase=args.lowercase,
remove_punctuation=args.remove_punctuation,
),
tokenizer=tokenizer,
max_length=max_length,
)
dataloader = get_loader(
df,
open_fn,
batch_size=batch_size,
num_workers=num_workers,
)
features = {}
dataloader = tqdm(dataloader) if args.verbose else dataloader
with torch.no_grad():
for idx, batch_input in enumerate(dataloader):
batch_input = any2device(batch_input, device)
batch_output = model(**batch_input)
mask = (batch_input["attention_mask"].unsqueeze(-1)
if args.mask_for_max_length else None)
if check_ddp_wrapped(model):
# using several gpu
hidden_size = model.module.config.hidden_size
hidden_states = model.module.config.output_hidden_states
else:
# using cpu or one gpu
hidden_size = model.config.hidden_size
hidden_states = model.config.output_hidden_states
batch_features = process_bert_output(
bert_output=batch_output,
hidden_size=hidden_size,
output_hidden_states=hidden_states,
pooling_groups=pooling_groups,
mask=mask,
)
# create storage based on network output
if idx == 0:
for layer_name, layer_value in batch_features.items():
if bert_level is not None and bert_level != layer_name:
continue
layer_name = (layer_name if isinstance(layer_name, str)
else f"{layer_name:02d}")
_, embedding_size = layer_value.shape
features[layer_name] = np.memmap(
f"{args.out_prefix}.{layer_name}.npy",
dtype=np.float32,
mode="w+",
shape=(num_samples, embedding_size),
)
indices = np.arange(idx * batch_size,
min((idx + 1) * batch_size, num_samples))
for layer_name2, layer_value2 in batch_features.items():
if bert_level is not None and bert_level != layer_name2:
continue
layer_name2 = (layer_name2 if isinstance(layer_name2, str) else
f"{layer_name2:02d}")
features[layer_name2][indices] = _detach(layer_value2)
if args.force_save:
for key, mmap in features.items():
mmap.flush()
np.save(f"{args.out_prefix}.{key}.force.npy",
mmap,
allow_pickle=False)
class JointBERT(BertPreTrainedModel):
def __init__(self,
bert_config,
model_config,
device,
slot_dim,
intent_dim,
intent_weight=None):
super(JointBERT, self).__init__(bert_config)
self.slot_num_labels = slot_dim
self.intent_num_labels = intent_dim
self.device = device
self.intent_weight = intent_weight if intent_weight is not None else torch.tensor(
[1.] * intent_dim)
self.bert = BertModel(bert_config)
self.dropout = nn.Dropout(model_config['dropout'])
self.context = model_config['context']
self.finetune = model_config['finetune']
self.context_grad = model_config['context_grad']
if self.context:
self.intent_classifier = nn.Linear(2 * bert_config.hidden_size,
self.intent_num_labels)
self.slot_classifier = nn.Linear(2 * bert_config.hidden_size,
self.slot_num_labels)
self.intent_hidden = nn.Linear(2 * bert_config.hidden_size,
2 * bert_config.hidden_size)
self.slot_hidden = nn.Linear(2 * bert_config.hidden_size,
2 * bert_config.hidden_size)
else:
self.intent_classifier = nn.Linear(bert_config.hidden_size,
self.intent_num_labels)
self.slot_classifier = nn.Linear(bert_config.hidden_size,
self.slot_num_labels)
self.intent_hidden = nn.Linear(bert_config.hidden_size,
bert_config.hidden_size)
self.slot_hidden = nn.Linear(bert_config.hidden_size,
bert_config.hidden_size)
self.intent_loss_fct = torch.nn.BCEWithLogitsLoss(
pos_weight=self.intent_weight)
self.slot_loss_fct = torch.nn.CrossEntropyLoss()
self.init_weights()
def forward(self,
word_seq_tensor,
word_mask_tensor,
tag_seq_tensor=None,
tag_mask_tensor=None,
intent_tensor=None,
context_seq_tensor=None,
context_mask_tensor=None):
if not self.finetune:
self.bert.eval()
with torch.no_grad():
outputs = self.bert(input_ids=word_seq_tensor,
attention_mask=word_mask_tensor)
else:
outputs = self.bert(input_ids=word_seq_tensor,
attention_mask=word_mask_tensor)
sequence_output = outputs[0]
pooled_output = outputs[1]
if self.context and context_seq_tensor is not None:
if not self.finetune or not self.context_grad:
with torch.no_grad():
context_output = self.bert(
input_ids=context_seq_tensor,
attention_mask=context_mask_tensor)[1]
else:
context_output = self.bert(
input_ids=context_seq_tensor,
attention_mask=context_mask_tensor)[1]
sequence_output = torch.cat([
context_output.unsqueeze(1).repeat(1, sequence_output.size(1),
1), sequence_output
],
dim=-1)
pooled_output = torch.cat([context_output, pooled_output], dim=-1)
sequence_output = nn.functional.relu(
self.dropout(self.slot_hidden(sequence_output)))
pooled_output = nn.functional.relu(
self.dropout(self.intent_hidden(pooled_output)))
sequence_output = self.dropout(sequence_output)
slot_logits = self.slot_classifier(sequence_output)
outputs = (slot_logits, )
pooled_output = self.dropout(pooled_output)
intent_logits = self.intent_classifier(pooled_output)
outputs = outputs + (intent_logits, )
if tag_seq_tensor is not None:
active_tag_loss = tag_mask_tensor.view(-1) == 1
active_tag_logits = slot_logits.view(
-1, self.slot_num_labels)[active_tag_loss]
active_tag_labels = tag_seq_tensor.view(-1)[active_tag_loss]
slot_loss = self.slot_loss_fct(active_tag_logits,
active_tag_labels)
outputs = outputs + (slot_loss, )
if intent_tensor is not None:
intent_loss = self.intent_loss_fct(intent_logits, intent_tensor)
outputs = outputs + (intent_loss, )
return outputs # slot_logits, intent_logits, (slot_loss), (intent_loss),
def main():
parser = argparse.ArgumentParser(
description='Train the individual Transformer model')
parser.add_argument('--dataset_folder', type=str, default='datasets')
parser.add_argument('--dataset_name', type=str, default='zara1')
parser.add_argument('--obs', type=int, default=8)
parser.add_argument('--preds', type=int, default=12)
parser.add_argument('--emb_size', type=int, default=1024)
parser.add_argument('--heads', type=int, default=8)
parser.add_argument('--layers', type=int, default=6)
parser.add_argument('--dropout', type=float, default=0.1)
parser.add_argument('--cpu', action='store_true')
parser.add_argument('--output_folder', type=str, default='Output')
parser.add_argument('--val_size', type=int, default=50)
parser.add_argument('--gpu_device', type=str, default="0")
parser.add_argument('--verbose', action='store_true')
parser.add_argument('--max_epoch', type=int, default=100)
parser.add_argument('--batch_size', type=int, default=256)
parser.add_argument('--validation_epoch_start', type=int, default=30)
parser.add_argument('--resume_train', action='store_true')
parser.add_argument('--delim', type=str, default='\t')
parser.add_argument('--name', type=str, default="zara1")
args = parser.parse_args()
model_name = args.name
try:
os.mkdir('models')
except:
pass
try:
os.mkdir('output')
except:
pass
try:
os.mkdir('output/BERT')
except:
pass
try:
os.mkdir(f'models/BERT')
except:
pass
try:
os.mkdir(f'output/BERT/{args.name}')
except:
pass
try:
os.mkdir(f'models/BERT/{args.name}')
except:
pass
log = SummaryWriter('logs/BERT_%s' % model_name)
log.add_scalar('eval/mad', 0, 0)
log.add_scalar('eval/fad', 0, 0)
try:
os.mkdir(args.name)
except:
pass
device = torch.device("cuda")
if args.cpu or not torch.cuda.is_available():
device = torch.device("cpu")
args.verbose = True
## creation of the dataloaders for train and validation
train_dataset, _ = baselineUtils.create_dataset(args.dataset_folder,
args.dataset_name,
0,
args.obs,
args.preds,
delim=args.delim,
train=True,
verbose=args.verbose)
val_dataset, _ = baselineUtils.create_dataset(args.dataset_folder,
args.dataset_name,
0,
args.obs,
args.preds,
delim=args.delim,
train=False,
verbose=args.verbose)
test_dataset, _ = baselineUtils.create_dataset(args.dataset_folder,
args.dataset_name,
0,
args.obs,
args.preds,
delim=args.delim,
train=False,
eval=True,
verbose=args.verbose)
from transformers import BertTokenizer, BertModel, BertForMaskedLM, BertConfig, AdamW
config = BertConfig(vocab_size=30522,
hidden_size=768,
num_hidden_layers=12,
num_attention_heads=12,
intermediate_size=3072,
hidden_act='relu',
hidden_dropout_prob=0.1,
attention_probs_dropout_prob=0.1,
max_position_embeddings=512,
type_vocab_size=2,
initializer_range=0.02,
layer_norm_eps=1e-12)
model = BertModel(config).to(device)
from individual_TF import LinearEmbedding as NewEmbed, Generator as GeneratorTS
a = NewEmbed(3, 768).to(device)
model.set_input_embeddings(a)
generator = GeneratorTS(768, 2).to(device)
#model.set_output_embeddings(GeneratorTS(1024,2))
tr_dl = torch.utils.data.DataLoader(train_dataset,
batch_size=args.batch_size,
shuffle=True,
num_workers=0)
val_dl = torch.utils.data.DataLoader(val_dataset,
batch_size=args.batch_size,
shuffle=True,
num_workers=0)
test_dl = torch.utils.data.DataLoader(test_dataset,
batch_size=args.batch_size,
shuffle=False,
num_workers=0)
#optim = SGD(list(a.parameters())+list(model.parameters())+list(generator.parameters()),lr=0.01)
#sched=torch.optim.lr_scheduler.StepLR(optim,0.0005)
optim = NoamOpt(
768, 0.1, len(tr_dl),
torch.optim.Adam(list(a.parameters()) + list(model.parameters()) +
list(generator.parameters()),
lr=0,
betas=(0.9, 0.98),
eps=1e-9))
#optim=Adagrad(list(a.parameters())+list(model.parameters())+list(generator.parameters()),lr=0.01,lr_decay=0.001)
epoch = 0
mean = train_dataset[:]['src'][:, :, 2:4].mean((0, 1)) * 0
std = train_dataset[:]['src'][:, :, 2:4].std((0, 1)) * 0 + 1
while epoch < args.max_epoch:
epoch_loss = 0
model.train()
for id_b, batch in enumerate(tr_dl):
optim.optimizer.zero_grad()
r = 0
rot_mat = np.array([[np.cos(r), np.sin(r)],
[-np.sin(r), np.cos(r)]])
inp = ((batch['src'][:, :, 2:4] - mean) / std).to(device)
inp = torch.matmul(inp,
torch.from_numpy(rot_mat).float().to(device))
trg_masked = torch.zeros((inp.shape[0], args.preds, 2)).to(device)
inp_cls = torch.ones(inp.shape[0], inp.shape[1], 1).to(device)
trg_cls = torch.zeros(trg_masked.shape[0], trg_masked.shape[1],
1).to(device)
inp_cat = torch.cat((inp, trg_masked), 1)
cls_cat = torch.cat((inp_cls, trg_cls), 1)
net_input = torch.cat((inp_cat, cls_cat), 2)
position = torch.arange(0, net_input.shape[1]).repeat(
inp.shape[0], 1).long().to(device)
token = torch.zeros(
(inp.shape[0], net_input.shape[1])).long().to(device)
attention_mask = torch.ones(
(inp.shape[0], net_input.shape[1])).long().to(device)
out = model(input_ids=net_input,
position_ids=position,
token_type_ids=token,
attention_mask=attention_mask)
pred = generator(out[0])
loss = F.pairwise_distance(
pred[:, :].contiguous().view(-1, 2),
torch.matmul(
torch.cat(
(batch['src'][:, :, 2:4], batch['trg'][:, :, 2:4]),
1).contiguous().view(-1, 2).to(device),
torch.from_numpy(rot_mat).float().to(device))).mean()
loss.backward()
optim.step()
print("epoch %03i/%03i frame %04i / %04i loss: %7.4f" %
(epoch, args.max_epoch, id_b, len(tr_dl), loss.item()))
epoch_loss += loss.item()
#sched.step()
log.add_scalar('Loss/train', epoch_loss / len(tr_dl), epoch)
with torch.no_grad():
model.eval()
gt = []
pr = []
val_loss = 0
for batch in val_dl:
inp = ((batch['src'][:, :, 2:4] - mean) / std).to(device)
trg_masked = torch.zeros(
(inp.shape[0], args.preds, 2)).to(device)
inp_cls = torch.ones(inp.shape[0], inp.shape[1], 1).to(device)
trg_cls = torch.zeros(trg_masked.shape[0], trg_masked.shape[1],
1).to(device)
inp_cat = torch.cat((inp, trg_masked), 1)
cls_cat = torch.cat((inp_cls, trg_cls), 1)
net_input = torch.cat((inp_cat, cls_cat), 2)
position = torch.arange(0, net_input.shape[1]).repeat(
inp.shape[0], 1).long().to(device)
token = torch.zeros(
(inp.shape[0], net_input.shape[1])).long().to(device)
attention_mask = torch.zeros(
(inp.shape[0], net_input.shape[1])).long().to(device)
out = model(input_ids=net_input,
position_ids=position,
token_type_ids=token,
attention_mask=attention_mask)
pred = generator(out[0])
loss = F.pairwise_distance(
pred[:, :].contiguous().view(-1, 2),
torch.cat(
(batch['src'][:, :, 2:4], batch['trg'][:, :, 2:4]),
1).contiguous().view(-1, 2).to(device)).mean()
val_loss += loss.item()
gt_b = batch['trg'][:, :, 0:2]
preds_tr_b = pred[:, args.obs:].cumsum(1).to(
'cpu').detach() + batch['src'][:, -1:, 0:2]
gt.append(gt_b)
pr.append(preds_tr_b)
gt = np.concatenate(gt, 0)
pr = np.concatenate(pr, 0)
mad, fad, errs = baselineUtils.distance_metrics(gt, pr)
log.add_scalar('validation/loss', val_loss / len(val_dl), epoch)
log.add_scalar('validation/mad', mad, epoch)
log.add_scalar('validation/fad', fad, epoch)
model.eval()
gt = []
pr = []
for batch in test_dl:
inp = ((batch['src'][:, :, 2:4] - mean) / std).to(device)
trg_masked = torch.zeros(
(inp.shape[0], args.preds, 2)).to(device)
inp_cls = torch.ones(inp.shape[0], inp.shape[1], 1).to(device)
trg_cls = torch.zeros(trg_masked.shape[0], trg_masked.shape[1],
1).to(device)
inp_cat = torch.cat((inp, trg_masked), 1)
cls_cat = torch.cat((inp_cls, trg_cls), 1)
net_input = torch.cat((inp_cat, cls_cat), 2)
position = torch.arange(0, net_input.shape[1]).repeat(
inp.shape[0], 1).long().to(device)
token = torch.zeros(
(inp.shape[0], net_input.shape[1])).long().to(device)
attention_mask = torch.zeros(
(inp.shape[0], net_input.shape[1])).long().to(device)
out = model(input_ids=net_input,
position_ids=position,
token_type_ids=token,
attention_mask=attention_mask)
pred = generator(out[0])
gt_b = batch['trg'][:, :, 0:2]
preds_tr_b = pred[:, args.obs:].cumsum(1).to(
'cpu').detach() + batch['src'][:, -1:, 0:2]
gt.append(gt_b)
pr.append(preds_tr_b)
gt = np.concatenate(gt, 0)
pr = np.concatenate(pr, 0)
mad, fad, errs = baselineUtils.distance_metrics(gt, pr)
torch.save(model.state_dict(),
"models/BERT/%s/ep_%03i.pth" % (args.name, epoch))
torch.save(generator.state_dict(),
"models/BERT/%s/gen_%03i.pth" % (args.name, epoch))
torch.save(a.state_dict(),
"models/BERT/%s/emb_%03i.pth" % (args.name, epoch))
log.add_scalar('eval/mad', mad, epoch)
log.add_scalar('eval/fad', fad, epoch)
epoch += 1
ab = 1
class UnStructuredModel:
def __init__(self, model_name, max_length, stride):
self.model_name = model_name
self.tokenizer = None
self.model = None
self.max_length = max_length
self.stride = stride
if model_name == 'bert-base-uncased':
configuration = BertConfig()
self.tokenizer = BertTokenizer.from_pretrained(self.model_name)
self.model = BertModel(configuration).from_pretrained(self.model_name)
self.model.to(device)
self.model.eval()
for param in self.model.parameters():
param.requires_grad = False
#self.model.bert.embeddings.requires_grad = False
def padTokens(self, tokens):
if len(tokens)<self.max_length:
tokens = tokens + ["[PAD]" for i in range(self.max_length - len(tokens))]
return tokens
def getEmbedding(self, text, if_pool=True, pooling_type="mean", batchsize = 1):
tokens = self.tokenizer.tokenize(text)
tokenized_array = self.tokenizeText(tokens)
embeddingTensorsList = []
print(len(tokenized_array))
tensor = torch.zeros([1, 768], device=device)
count = 0
if len(tokenized_array)>batchsize:
for i in range(0, len(tokenized_array), batchsize):
current_tokens = tokenized_array[i:min(i+batchsize,len(tokenized_array))]
token_ids = torch.tensor(current_tokens).to(device)
seg_ids=[[0 for _ in range(len(tokenized_array[0]))] for _ in range(len(current_tokens))]
seg_ids = torch.tensor(seg_ids).to(device)
hidden_reps, cls_head = self.model(token_ids, token_type_ids = seg_ids)
cls_head.to(device)
clas_head = cls_head.detach
if if_pool and pooling_type=="mean":
tensor = tensor.add(torch.sum(cls_head, dim=0))
count +=cls_head.shape[0]
else:
embeddingTensorsList.append(cls_head)
del cls_head, hidden_reps
if if_pool and pooling_type=="mean" and count>0:
embedding = torch.div(tensor, count)
elif not if_pool:
embedding = torch.cat(embeddingTensorsList, dim=0)
else:
raise NotImplementedError()
else:
token_ids = torch.tensor(tokenized_array).to(device)
seg_ids=[[0 for _ in range(len(tokenized_array[0]))] for _ in range(len(tokenized_array))]
seg_ids = torch.tensor(seg_ids).to(device)
hidden_reps, cls_head = self.model(token_ids, token_type_ids = seg_ids)
cls_head.to(device)
cls_head.requires_grad = False
if if_pool and pooling_type=="mean":
embedding = torch.div(torch.sum(cls_head, dim=0), cls_head.shape[0])
elif not if_pool:
embedding = cls_head
else:
raise NotImplementedError()
del cls_head, hidden_reps
return embedding
def tokenizeText(self, tokens):
tokens_array = []
#window_movement_tokens = max_length - stride
for i in range(0, len(tokens), self.stride):
if i+self.max_length<len(tokens):
curr_tokens = ["[CLS]"] + tokens[i:i+self.max_length] + ["[SEP]"]
else:
padded_tokens = self.padTokens(tokens[i:i+self.max_length])
curr_tokens = ["[CLS]"] + padded_tokens + ["[SEP]"]
curr_tokens = self.tokenizer.convert_tokens_to_ids(curr_tokens)
tokens_array.append(curr_tokens)
return tokens_array
def main(config_path):
config = Box.from_yaml(config_path.open())
torch.cuda.set_device(config.train.device)
logger = create_logger(name="MAIN")
logger.info(f"[-] Config loaded from {config_path}")
data_dir = Path(config.data.data_dir)
save_dir = Path(config.data.save_dir)
if not save_dir.exists():
save_dir.mkdir()
transfo_dir = Path(config.data.transfo_dir)
device = create_device(config.train.device)
tokenizer = BertTokenizer.from_pretrained(
str(transfo_dir), do_lower_case=(not config.data.cased))
global CLS
global SEP
global PAD
CLS, SEP, PAD = tokenizer.convert_tokens_to_ids(
["[CLS]", "[SEP]", "[PAD]"])
bert_config = BertConfig.from_pretrained(str(transfo_dir))
# To extract representations from other layers
bert_config.output_hidden_states = True
model = BertModel(bert_config)
model.to(device)
model.eval()
train_file = data_dir / "schema_dstc8+m2.2.json"
train_vocab_file = save_dir / "train_schema_vocab.pkl"
train_embed_file = save_dir / "train_schema_embed.pkl"
train_desc_file = save_dir / "train_schema_desc.pkl"
valid_file = data_dir / "dev" / "schema.json"
valid_vocab_file = save_dir / "valid_schema_vocab.pkl"
valid_embed_file = save_dir / "valid_schema_embed.pkl"
valid_desc_file = save_dir / "valid_schema_desc.pkl"
if (data_dir / "test").exists():
test_file = data_dir / "test" / "schema.json"
test_vocab_file = save_dir / "test_schema_vocab.pkl"
test_embed_file = save_dir / "test_schema_embed.pkl"
test_desc_file = save_dir / "test_schema_desc.pkl"
else:
test_file = None
test_vocab_file = None
test_embed_file = None
test_desc_file = None
train_schema_vocab, train_desc = extract(train_file,
config.data.concat_name)
valid_schema_vocab, valid_desc = extract(valid_file,
config.data.concat_name)
if test_file is not None:
test_schema_vocab, test_desc = extract(test_file,
config.data.concat_name)
else:
test_schema_vocab = test_desc = None
pickle.dump(train_schema_vocab, open(train_vocab_file, "wb"))
pickle.dump(valid_schema_vocab, open(valid_vocab_file, "wb"))
if test_schema_vocab is not None:
pickle.dump(test_schema_vocab, open(test_vocab_file, "wb"))
layer = config.data.schema.layer
pooling = config.data.schema.pooling
train_embed = []
for desc in tqdm(train_desc, leave=False):
embed = []
for sent in tqdm(desc, leave=False):
embed.append(
get_rep(sent, model, tokenizer, layer, pooling, device))
embed = torch.stack(embed)
train_embed.append(embed)
train_desc = [[[word.text.lower() for word in spacy_tokenizer(sent)]
for sent in desc] for desc in train_desc]
pickle.dump(train_embed, open(train_embed_file, "wb"))
pickle.dump(train_desc, open(train_desc_file, "wb"))
valid_embed = []
for desc in tqdm(valid_desc, leave=False):
embed = []
for sent in tqdm(desc, leave=False):
embed.append(
get_rep(sent, model, tokenizer, layer, pooling, device))
embed = torch.stack(embed)
valid_embed.append(embed)
valid_desc = [[[word.text.lower() for word in spacy_tokenizer(sent)]
for sent in desc] for desc in valid_desc]
pickle.dump(valid_embed, open(valid_embed_file, "wb"))
pickle.dump(valid_desc, open(valid_desc_file, "wb"))
if test_desc is None:
exit()
test_embed = []
for desc in tqdm(test_desc, leave=False):
embed = []
for sent in tqdm(desc, leave=False):
embed.append(
get_rep(sent, model, tokenizer, layer, pooling, device))
embed = torch.stack(embed)
test_embed.append(embed)
test_desc = [[[word.text.lower() for word in spacy_tokenizer(sent)]
for sent in desc] for desc in test_desc]
pickle.dump(test_embed, open(test_embed_file, "wb"))
pickle.dump(test_desc, open(test_desc_file, "wb"))
import torch
import torch.nn as nn
from transformers import BertTokenizer, BertModel
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
#device = torch.device('cpu')
tokenizer = BertTokenizer.from_pretrained('bert-base-uncased')
BertModel = BertModel.from_pretrained('bert-base-uncased').to(device)
BertModel.eval()
class Decoder(nn.Module):
def __init__(self, vocab_size, use_glove, use_bert, glove_vectors, vocab):
super(Decoder, self).__init__()
self.vocab = vocab
self.encoder_dim = 2048
self.attention_dim = 512
self.use_bert = use_bert
if use_glove:
self.embed_dim = 200
elif use_bert:
self.embed_dim = 768
else:
self.embed_dim = 512
self.decoder_dim = 512
self.vocab_size = vocab_size
self.dropout = 0.5
class NERPredict(IPredict):
'''
构造函数, 初始化预测器
use_gpu: 使用GPU
bert_config_file_name: Bert模型配置文件路径
vocab_file_name: 单词表文件路径
tags_file_name: Tag表文件路径
bert_model_path: Bert模型装载路径
lstm_crf_model_path: CRF模型装载路径
hidden_dim: CRF隐藏层
'''
def __init__(self, use_gpu, bert_config_file_name, vocab_file_name,
tags_file_name, bert_model_path, lstm_crf_model_path,
hidden_dim):
self.use_gpu = use_gpu
self.data_manager_init(vocab_file_name, tags_file_name)
self.tokenizer = BertTokenizer.from_pretrained(vocab_file_name)
self.model_init(hidden_dim, bert_config_file_name, bert_model_path,
lstm_crf_model_path)
def data_manager_init(self, vocab_file_name, tags_file_name):
tags_list = BERTDataManager.ReadTagsList(tags_file_name)
tags_list = [tags_list]
self.dm = BERTDataManager(tags_list=tags_list,
vocab_file_name=vocab_file_name)
def model_init(self, hidden_dim, bert_config_file_name, bert_model_path,
lstm_crf_model_path):
config = BertConfig.from_json_file(bert_config_file_name)
self.model = BertModel(config)
bert_dict = torch.load(bert_model_path).module.state_dict()
self.model.load_state_dict(bert_dict)
self.birnncrf = torch.load(lstm_crf_model_path)
self.model.eval()
self.birnncrf.eval()
def data_process(self, sentences):
result = []
pad_tag = '[PAD]'
if type(sentences) == str:
sentences = [sentences]
max_len = 0
for sentence in sentences:
encode = self.tokenizer.encode(sentence, add_special_tokens=True)
result.append(encode)
if max_len < len(encode):
max_len = len(encode)
for i, sentence in enumerate(result):
remain = max_len - len(sentence)
for _ in range(remain):
result[i].append(self.dm.wordToIdx(pad_tag))
return torch.tensor(result)
def pred(self, sentences):
sentences = self.data_process(sentences)
if torch.cuda.is_available() and self.use_gpu:
self.model.cuda()
self.birnncrf.cuda()
sentences = sentences.cuda()
outputs = self.model(input_ids=sentences,
attention_mask=sentences.gt(0))
hidden_states = outputs[0]
scores, tags = self.birnncrf(hidden_states, sentences.gt(0))
final_tags = []
decode_sentences = []
for item in tags:
final_tags.append([self.dm.idx_to_tag[tag] for tag in item])
for item in sentences.tolist():
decode_sentences.append(self.tokenizer.decode(item))
return (scores, tags, final_tags, decode_sentences)
def __call__(self, sentences):
return self.pred(sentences)
def main(args, _=None):
"""Run the ``catalyst-data text2embeddings`` script."""
batch_size = args.batch_size
num_workers = args.num_workers
max_length = args.max_length
pooling_groups = args.pooling.split(",")
utils.set_global_seed(args.seed)
utils.prepare_cudnn(args.deterministic, args.benchmark)
if hasattr(args, "in_huggingface"):
model_config = BertConfig.from_pretrained(args.in_huggingface)
model_config.output_hidden_states = args.output_hidden_states
model = BertModel.from_pretrained(args.in_huggingface,
config=model_config)
tokenizer = BertTokenizer.from_pretrained(args.in_huggingface)
else:
model_config = BertConfig.from_pretrained(args.in_config)
model_config.output_hidden_states = args.output_hidden_states
model = BertModel(config=model_config)
tokenizer = BertTokenizer.from_pretrained(args.in_vocab)
if hasattr(args, "in_model"):
checkpoint = utils.load_checkpoint(args.in_model)
checkpoint = {"model_state_dict": checkpoint}
utils.unpack_checkpoint(checkpoint=checkpoint, model=model)
model = model.eval()
model, _, _, _, device = utils.process_components(model=model)
df = pd.read_csv(args.in_csv)
df = df.dropna(subset=[args.txt_col])
df.to_csv(f"{args.out_prefix}.df.csv", index=False)
df = df.reset_index().drop("index", axis=1)
df = list(df.to_dict("index").values())
num_samples = len(df)
open_fn = LambdaReader(
input_key=args.txt_col,
output_key=None,
lambda_fn=partial(
tokenize_text,
strip=args.strip,
lowercase=args.lowercase,
remove_punctuation=args.remove_punctuation,
),
tokenizer=tokenizer,
max_length=max_length,
)
dataloader = utils.get_loader(
df,
open_fn,
batch_size=batch_size,
num_workers=num_workers,
)
features = {}
dataloader = tqdm(dataloader) if args.verbose else dataloader
with torch.no_grad():
for idx, batch in enumerate(dataloader):
batch = utils.any2device(batch, device)
bert_output = model(**batch)
mask = (batch["attention_mask"].unsqueeze(-1)
if args.mask_for_max_length else None)
if utils.check_ddp_wrapped(model):
# using several gpu
hidden_size = model.module.config.hidden_size
hidden_states = model.module.config.output_hidden_states
else:
# using cpu or one gpu
hidden_size = model.config.hidden_size
hidden_states = model.config.output_hidden_states
features_ = process_bert_output(
bert_output=bert_output,
hidden_size=hidden_size,
output_hidden_states=hidden_states,
pooling_groups=pooling_groups,
mask=mask,
)
# create storage based on network output
if idx == 0:
for key, value in features_.items():
name_ = key if isinstance(key, str) else f"{key:02d}"
_, embedding_size = value.shape
features[name_] = np.memmap(
f"{args.out_prefix}.{name_}.npy",
dtype=np.float32,
mode="w+",
shape=(num_samples, embedding_size),
)
indices = np.arange(idx * batch_size,
min((idx + 1) * batch_size, num_samples))
for key, value in features_.items():
name_ = key if isinstance(key, str) else f"{key:02d}"
features[name_][indices] = _detach(value)
class SentenceBert(BertPreTrainedModel):
def __init__(self, config, max_len, tokenizer, device, task_type):
super(SentenceBert, self).__init__(config)
self.max_len = max_len
self.task_type = task_type
self._target_device = device
self.tokenizer = tokenizer
self.bert = BertModel(config=config)
self.classifier = nn.Linear(3 * config.hidden_size, config.num_labels)
def forward(self, inputs):
input_a = inputs[0]
input_b = inputs[1]
output_a = self.bert(**input_a,
return_dict=True,
output_hidden_states=True)
output_b = self.bert(**input_b,
return_dict=True,
output_hidden_states=True)
#采用最后一层
embedding_a = output_a.hidden_states[-1]
embedding_b = output_b.hidden_states[-1]
embedding_a = self.pooling(embedding_a, input_a)
embedding_b = self.pooling(embedding_b, input_b)
if self.task_type == "classification":
embedding_abs = torch.abs(embedding_a - embedding_b)
vectors_concat = []
vectors_concat.append(embedding_a)
vectors_concat.append(embedding_b)
vectors_concat.append(embedding_abs)
#列拼接3个768————>3*768
features = torch.cat(vectors_concat, 1)
output = self.classifier(features)
else:
d = torch.mul(embedding_a, embedding_b)
a_len = torch.norm(embedding_a, dim=1)
b_len = torch.norm(embedding_b, dim=1)
cos = torch.sum(d) / (a_len * b_len)
output = cos
return output
def pooling(self, token_embeddings, input):
output_vectors = []
#attention_mask
attention_mask = input['attention_mask']
#[B,L]------>[B,L,1]------>[B,L,768],矩阵的值是0或者1
input_mask_expanded = attention_mask.unsqueeze(-1).expand(
token_embeddings.size()).float()
#这里做矩阵点积，就是对元素相乘(序列中padding字符，通过乘以0给去掉了)[B,L,768]
t = token_embeddings * input_mask_expanded
#[B,768]
sum_embeddings = torch.sum(t, 1)
# [B,768],最大值为seq_len
sum_mask = input_mask_expanded.sum(1)
#限定每个元素的最小值是1e-9，保证分母不为0
sum_mask = torch.clamp(sum_mask, min=1e-9)
#得到最后的具体embedding的每一个维度的值——元素相除
output_vectors.append(sum_embeddings / sum_mask)
#列拼接
output_vector = torch.cat(output_vectors, 1)
return output_vector
def encoding(self, inputs):
self.bert.eval()
with torch.no_grad():
output = self.bert(**inputs,
return_dict=True,
output_hidden_states=True)
embedding = output.hidden_states[-1]
embedding = self.pooling(embedding, inputs)
return embedding
# def class_infer(self,texts,batch_size=64):
# """
# 推理输入文本list中第一条和剩余其他的是否是同一类别；可以传入无限长的list
# :param texts:
# :param tokenizer:
# :param batch_size:
# :return:
# """
# result = []
# text_a = texts[0]
# input_id_a, attention_mask_a = self.convert_text2ids(text_a)
# input_ids_a = []
# attention_masks_a = []
# input_ids_b = []
# attention_masks_b = []
# for text in texts[1:]:
# input_id_b, attention_mask_b = self.convert_text2ids(text)
#
# input_ids_a.append(input_id_a)
# attention_masks_a.append(attention_mask_a)
#
# input_ids_b.append(input_id_b)
# attention_masks_b.append(attention_mask_b)
# if len(input_ids_a) >= batch_size:
# inputs = []
# input_ids_a = torch.as_tensor(input_ids_a,dtype=torch.long,device=self.device)
# attention_masks_a = torch.as_tensor(attention_masks_a,dtype=torch.long,device=self.device)
# token_type_ids_a = torch.zeros_like(input_ids_a).to(self.device)
#
# inputs_a = {'input_ids': input_ids_a, 'attention_mask': attention_masks_a,'token_type_ids':token_type_ids_a}
#
# input_ids_b = torch.as_tensor(input_ids_b, dtype=torch.long, device=self.device)
# attention_masks_b = torch.as_tensor(attention_masks_b, dtype=torch.long, device=self.device)
# token_type_ids_b = torch.zeros_like(input_ids_b).to(self.device)
#
# inputs_b = {'input_ids': input_ids_b, 'attention_mask': attention_masks_b,
# 'token_type_ids': token_type_ids_b}
#
# inputs.append(inputs_a)
# inputs.append(inputs_b)
# logits = self.forward(inputs)
#
#
# lables = torch.argmax(logits)
# result.append(lables)
#
#
# input_ids_a = []
# attention_masks_a = []
# input_ids_b = []
# attention_masks_b = []
#
#
#
# inputs = []
# input_ids_a = torch.as_tensor(input_ids_a, dtype=torch.long, device=self.device)
# attention_masks_a = torch.as_tensor(attention_masks_a, dtype=torch.long, device=self.device)
# token_type_ids_a = torch.zeros_like(input_ids_a).to(self.device)
#
# inputs_a = {'input_ids': input_ids_a, 'attention_mask': attention_masks_a, 'token_type_ids': token_type_ids_a}
#
# input_ids_b = torch.as_tensor(input_ids_b, dtype=torch.long, device=self.device)
# attention_masks_b = torch.as_tensor(attention_masks_b, dtype=torch.long, device=self.device)
# token_type_ids_b = torch.zeros_like(input_ids_b).to(self.device)
#
# inputs_b = {'input_ids': input_ids_b, 'attention_mask': attention_masks_b,
# 'token_type_ids': token_type_ids_b}
#
# inputs.append(inputs_a)
# inputs.append(inputs_b)
# logits = self.forward(inputs)
#
# lables = torch.argmax(logits)
# result.append(lables)
#
#
# return result
def class_infer(self, texts, batch_size=64):
"""
推理输入文本list中第一条和剩余其他的是否是同一类别；传入长度<batch_size
:param texts:
:param tokenizer:
:param batch_size:
:return:
"""
assert len(texts) <= batch_size
result = []
text_a = texts[0]
input_id_a, attention_mask_a = self.convert_text2ids(text_a)
input_ids_a = []
attention_masks_a = []
input_ids_b = []
attention_masks_b = []
for text in texts[1:]:
input_id_b, attention_mask_b = self.convert_text2ids(text)
input_ids_a.append(input_id_a)
attention_masks_a.append(attention_mask_a)
input_ids_b.append(input_id_b)
attention_masks_b.append(attention_mask_b)
inputs = []
input_ids_a = torch.as_tensor(input_ids_a,
dtype=torch.long,
device=self._target_device)
attention_masks_a = torch.as_tensor(attention_masks_a,
dtype=torch.long,
device=self._target_device)
token_type_ids_a = torch.zeros_like(input_ids_a).to(
self._target_device)
inputs_a = {
'input_ids': input_ids_a,
'attention_mask': attention_masks_a,
'token_type_ids': token_type_ids_a
}
input_ids_b = torch.as_tensor(input_ids_b,
dtype=torch.long,
device=self._target_device)
attention_masks_b = torch.as_tensor(attention_masks_b,
dtype=torch.long,
device=self._target_device)
token_type_ids_b = torch.zeros_like(input_ids_b).to(
self._target_device)
inputs_b = {
'input_ids': input_ids_b,
'attention_mask': attention_masks_b,
'token_type_ids': token_type_ids_b
}
inputs.append(inputs_a)
inputs.append(inputs_b)
logits = self.forward(inputs)
lables = torch.argmax(logits)
result.append(lables)
return result
def similarity_infer(self, texts, batch_size=64):
"""
计算输入文本list中第一条和剩余其他文本的相似度 传入长度<batch_size
:param texts:
:param tokenizer:
:param batch_size:
:return:
"""
assert len(texts) <= batch_size
input_ids = []
attention_masks = []
for text in texts:
input_id, attention_mask = self.convert_text2ids(text)
input_ids.append(input_id)
attention_masks.append(attention_mask)
input_ids_a = torch.as_tensor(input_ids,
dtype=torch.long,
device=self._target_device)
attention_masks_a = torch.as_tensor(attention_masks,
dtype=torch.long,
device=self._target_device)
token_type_ids_a = torch.zeros_like(input_ids_a).to(
self._target_device)
inputs = {
'input_ids': input_ids_a,
'attention_mask': attention_masks_a,
'token_type_ids': token_type_ids_a
}
embeddings = self.encoding(inputs)
embedding_a = embeddings[0:1]
embedding_b = embeddings[1:]
d = torch.mul(embedding_a, embedding_b) # 计算对应元素相乘
a_len = torch.norm(embedding_a, dim=1) # 2范数，也就是模长
b_len = torch.norm(embedding_b, dim=1)
cos = torch.sum(d, dim=1) / (a_len * b_len) # 得到相似度
simlaritys = cos
return simlaritys
def convert_text2ids(self, text):
text = text[0:self.max_len - 2]
inputs = self.tokenizer(text)
input_ids = inputs['input_ids']
# lenght = len(input_ids)
attention_mask = inputs['attention_mask']
paddings = [0] * (self.max_len - len(input_ids))
input_ids += paddings
attention_mask += paddings
return input_ids, attention_mask
import torch
from transformers import BertConfig, BertModel
if args.size == 'tiny':
cur_dir = os.path.dirname(os.path.abspath(__file__))
bert_name_or_path = os.path.join(os.path.join(cur_dir, 'bert'),
'bert-tiny-uncased-config.json')
elif args.size == 'base':
bert_name_or_path = "bert-base-uncased"
else:
bert_name_or_path = "bert-large-uncased"
config = BertConfig.from_pretrained(bert_name_or_path)
model = BertModel(config)
model.eval()
device = torch.device("cpu")
model.to(device)
dummy_input0 = torch.LongTensor(1, 512).fill_(1).to(device)
dummy_input1 = torch.LongTensor(1, 512).fill_(1).to(device)
dummy_input2 = torch.LongTensor(1, 512).fill_(0).to(device)
dummy_input = (dummy_input0, dummy_input1, dummy_input2)
output_path = './bert/bert_{}.onnx'.format(args.size)
torch.onnx.export(model,
dummy_input,
output_path,
export_params=True,
opset_version=12,
do_constant_folding=True,
input_names=["input_ids", "input_mask", "segment_ids"],
output_names=["output"],
def train(config, bert_config, train_path, dev_path, rel2id, id2rel,
tokenizer):
if os.path.exists(config.output_dir) is False:
os.makedirs(config.output_dir, exist_ok=True)
if os.path.exists('./data/train_file.pkl'):
train_data = pickle.load(open("./data/train_file.pkl", mode='rb'))
else:
train_data = data.load_data(train_path, tokenizer, rel2id, num_rels)
pickle.dump(train_data, open("./data/train_file.pkl", mode='wb'))
dev_data = json.load(open(dev_path))
for sent in dev_data:
data.to_tuple(sent)
data_manager = data.SPO(train_data)
train_sampler = RandomSampler(data_manager)
train_data_loader = DataLoader(data_manager,
sampler=train_sampler,
batch_size=config.batch_size,
drop_last=True)
num_train_steps = int(
len(data_manager) / config.batch_size) * config.max_epoch
if config.bert_pretrained_model is not None:
logger.info('load bert weight')
Bert_model = BertModel.from_pretrained(config.bert_pretrained_model,
config=bert_config)
else:
logger.info('random initialize bert model')
Bert_model = BertModel(config=bert_config).init_weights()
Bert_model.to(device)
submodel = sub_model(config).to(device)
objmodel = obj_model(config).to(device)
loss_fuc = nn.BCELoss(reduction='none')
params = list(Bert_model.parameters()) + list(
submodel.parameters()) + list(objmodel.parameters())
optimizer = AdamW(params, lr=config.lr)
# Train!
logger.info("***** Running training *****")
logger.info(" Num examples = %d", len(data_manager))
logger.info(" Num Epochs = %d", config.max_epoch)
logger.info(" Total train batch size = %d", config.batch_size)
logger.info(" Total optimization steps = %d", num_train_steps)
logger.info(" Logging steps = %d", config.print_freq)
logger.info(" Save steps = %d", config.save_freq)
global_step = 0
Bert_model.train()
submodel.train()
objmodel.train()
for _ in range(config.max_epoch):
optimizer.zero_grad()
epoch_itorator = tqdm(train_data_loader, disable=None)
for step, batch in enumerate(epoch_itorator):
batch = tuple(t.to(device) for t in batch)
input_ids, segment_ids, input_masks, sub_positions, sub_heads, sub_tails, obj_heads, obj_tails = batch
bert_output = Bert_model(input_ids, input_masks, segment_ids)[0]
pred_sub_heads, pred_sub_tails = submodel(
bert_output) # [batch_size, seq_len, 1]
pred_obj_heads, pred_obj_tails = objmodel(bert_output,
sub_positions)
# 计算loss
mask = input_masks.view(-1)
# loss1
sub_heads = sub_heads.unsqueeze(-1) # [batch_szie, seq_len, 1]
sub_tails = sub_tails.unsqueeze(-1)
loss1_head = loss_fuc(pred_sub_heads, sub_heads).view(-1)
loss1_head = torch.sum(loss1_head * mask) / torch.sum(mask)
loss1_tail = loss_fuc(pred_sub_tails, sub_tails).view(-1)
loss1_tail = torch.sum(loss1_tail * mask) / torch.sum(mask)
loss1 = loss1_head + loss1_tail
# loss2
loss2_head = loss_fuc(pred_obj_heads,
obj_heads).view(-1, obj_heads.shape[-1])
loss2_head = torch.sum(
loss2_head * mask.unsqueeze(-1)) / torch.sum(mask)
loss2_tail = loss_fuc(pred_obj_tails,
obj_tails).view(-1, obj_tails.shape[-1])
loss2_tail = torch.sum(
loss2_tail * mask.unsqueeze(-1)) / torch.sum(mask)
loss2 = loss2_head + loss2_tail
# optimize
loss = loss1 + loss2
loss.backward()
optimizer.step()
optimizer.zero_grad()
global_step += 1
if (global_step + 1) % config.print_freq == 0:
logger.info(
"epoch : {} step: {} #### loss1: {} loss2: {}".format(
_, global_step + 1,
loss1.cpu().item(),
loss2.cpu().item()))
if (global_step + 1) % config.eval_freq == 0:
logger.info("***** Running evaluating *****")
with torch.no_grad():
Bert_model.eval()
submodel.eval()
objmodel.eval()
P, R, F1 = utils.metric(Bert_model, submodel, objmodel,
dev_data, id2rel, tokenizer)
logger.info(f'precision:{P}\nrecall:{R}\nF1:{F1}')
Bert_model.train()
submodel.train()
objmodel.train()
if (global_step + 1) % config.save_freq == 0:
# Save a trained model
model_name = "pytorch_model_%d" % (global_step + 1)
output_model_file = os.path.join(config.output_dir, model_name)
state = {
'bert_state_dict': Bert_model.state_dict(),
'subject_state_dict': submodel.state_dict(),
'object_state_dict': objmodel.state_dict(),
}
torch.save(state, output_model_file)
model_name = "pytorch_model_last"
output_model_file = os.path.join(config.output_dir, model_name)
state = {
'bert_state_dict': Bert_model.state_dict(),
'subject_state_dict': submodel.state_dict(),
'object_state_dict': objmodel.state_dict(),
}
torch.save(state, output_model_file)
class BertForQuestionAnsweringWithCRF(BertPreTrainedModel):
def __init__(self, config):
super().__init__(config)
self.bert = BertModel(config)
self.hidden_size = self.bert.config.hidden_size
self.CRF_fc1 = nn.Sequential(
nn.Dropout(0.5),
nn.Linear(self.hidden_size, config.num_labels + 2, bias=True),
)
self.CRF = CRF(target_size=self.bert.config.num_labels,
device=torch.device("cuda"))
self.CrossEntropyLoss = nn.CrossEntropyLoss()
self.fc2 = nn.Linear(self.hidden_size, 2, bias=True)
def forward(self, tokens_id_l, token_type_ids_l, answer_offset_l,
answer_seq_label_l, IsQA_l):
## 字符ID [batch_size, seq_length]
tokens_x_2d = torch.LongTensor(tokens_id_l).to(self.device)
token_type_ids_2d = torch.LongTensor(token_type_ids_l).to(self.device)
# 计算sql_len 不包含[CLS]
batch_size, seq_length = tokens_x_2d[:, 1:].size()
## CRF答案ID [batch_size, seq_length]
y_2d = torch.LongTensor(answer_seq_label_l).to(self.device)[:, 1:]
## (batch_size,)
y_IsQA_2d = torch.LongTensor(IsQA_l).to(self.device)
if self.training: # self.training基层的外部类
self.bert.train()
output = self.bert(
input_ids=tokens_x_2d,
token_type_ids=token_type_ids_2d,
output_hidden_states=True,
return_dict=True) #[batch_size, seq_len, hidden_size]
else:
self.bert.eval()
with torch.no_grad():
output = self.bert(input_ids=tokens_x_2d,
token_type_ids=token_type_ids_2d,
output_hidden_states=True,
return_dict=True)
## [CLS] for IsQA [batch_size, hidden_size]
cls_emb = output.last_hidden_state[:, 0, :]
IsQA_logits = self.fc2(cls_emb) ## [batch_size, 2]
IsQA_loss = self.CrossEntropyLoss.forward(IsQA_logits, y_IsQA_2d)
## [batch_size, 1]
IsQA_prediction = IsQA_logits.argmax(dim=-1).unsqueeze(dim=-1)
# CRF mask
mask = np.ones(shape=[batch_size, seq_length], dtype=np.uint8)
mask = torch.ByteTensor(mask).to(
self.device) # [batch_size, seq_len, 4]
# No [CLS]
crf_logits = self.CRF_fc1(output.last_hidden_state[:, 1:, :])
crf_loss = self.CRF.neg_log_likelihood_loss(feats=crf_logits,
mask=mask,
tags=y_2d)
_, CRFprediction = self.CRF.forward(feats=crf_logits, mask=mask)
return IsQA_prediction, CRFprediction, IsQA_loss, crf_loss, y_2d, y_IsQA_2d.unsqueeze(
dim=-1) # (batch_size,) -> (batch_size, 1)