def train(self, train_examples, dev_examples, dir_path=None):
train_examples = SentencesDataset(train_examples, self.model)
dev_examples = SentencesDataset(dev_examples, self.model)
train_dataloader = DataLoader(train_examples,
shuffle=True,
batch_size=self.args.train_batch_size)
dev_dataloader = DataLoader(dev_examples,
shuffle=False,
batch_size=self.args.eval_batch_size)
train_loss = losses.CosineSimilarityLoss(model=self.model)
evaluator = EmbeddingSimilarityEvaluator(dev_dataloader)
warmup_steps = math.ceil(
len(train_examples) * self.args.num_train_epochs /
self.args.train_batch_size * self.args.warmup_proportion)
self.model.zero_grad()
self.model.train()
self.model.fit(train_objectives=[(train_dataloader, train_loss)],
evaluator=evaluator,
epochs=self.args.num_train_epochs,
evaluation_steps=10000,
warmup_steps=warmup_steps,
output_path=None,
optimizer_params={
'lr': self.args.learning_rate,
'eps': 1e-6,
'correct_bias': False
})
def train(self, train_df, eval_df):
"""
:param train_df: dataframe with columns 'text_a', 'text_b', 'labels'
:param eval_df: dataframe with columns 'text_a', 'text_b', 'labels'
:return:
"""
# format training data
if "text_a" in train_df.columns and "text_b" in train_df.columns and "labels" in train_df.columns:
if self.args.do_lower_case:
train_df.loc[:, 'text_a'] = train_df['text_a'].str.lower()
train_df.loc[:, 'text_b'] = train_df['text_b'].str.lower()
train_examples = [
InputExample(str(i), [text_a, text_b], label)
for i, (text_a, text_b, label) in enumerate(
zip(
train_df["text_a"].astype(str),
train_df["text_b"].astype(str),
train_df["labels"].astype(float),
))
]
else:
raise KeyError(
'Training data processing - Required columns not found!')
# format evaluation data
if "text_a" in train_df.columns and "text_b" in train_df.columns and "labels" in eval_df.columns:
if self.args.do_lower_case:
eval_df.loc[:, 'text_a'] = eval_df['text_a'].str.lower()
eval_df.loc[:, 'text_b'] = eval_df['text_b'].str.lower()
evaluator = evaluation.EmbeddingSimilarityEvaluator(
list(eval_df["text_a"]),
list(eval_df["text_b"]),
list(eval_df["labels"]),
batch_size=self.args.eval_batch_size)
else:
raise KeyError(
'Evaluation data processing - Required columns not found!')
# Define train dataset, the dataloader and the train loss
train_dataloader = DataLoader(train_examples,
shuffle=True,
batch_size=self.args.train_batch_size)
train_loss = losses.CosineSimilarityLoss(self.model)
# Tune the model
self.model.fit(
train_objectives=[(train_dataloader, train_loss)],
epochs=self.args.num_train_epochs,
warmup_steps=self.args.warmup_steps,
optimizer_params={'lr': self.args.learning_rate},
weight_decay=self.args.weight_decay,
evaluator=evaluator,
evaluation_steps=self.args.evaluate_during_training_steps,
max_grad_norm=self.args.max_grad_norm,
output_path=self.args.best_model_dir,
show_progress_bar=self.args.show_progress_bar)
def get_loss(loss_type, model):
if loss_type == 'BatchAllTripletLoss':
return losses.BatchAllTripletLoss(model=model)
if loss_type == 'BatchHardSoftMarginTripletLoss':
return losses.BatchHardSoftMarginTripletLoss(model=model)
if loss_type == 'BatchHardTripletLoss':
return losses.BatchHardTripletLoss(model=model)
if loss_type == 'BatchSemiHardTripletLoss':
return losses.BatchSemiHardTripletLoss(model=model)
if loss_type == 'ContrastiveLoss':
return losses.ContrastiveLoss(model=model)
if loss_type == 'CosineSimilarityLoss':
return losses.CosineSimilarityLoss(model=model)
if loss_type == 'MegaBatchMarginLoss':
return losses.MegaBatchMarginLoss(model=model)
if loss_type == 'MultipleNegativesRankingLoss':
return losses.MultipleNegativesRankingLoss(model=model)
if loss_type == 'OnlineContrastiveLoss':
return losses.OnlineContrastiveLoss(model=model)
raise ValueError('Invalid loss type')
def create_posts_ranking(fl, data_dir, model, validate=None, is_test=False):
train_posts_ranking = []
disbn = []
with open(os.path.join(data_dir, fl)) as f:
data = json.load(f)
for obj in data:
answers = obj['answers']
filtered_answers = []
votes = 1000000
for answer in answers:
my_votes = answer['a_votes']
if my_votes < votes:
votes = my_votes
filtered_answers.append(answer)
if len(filtered_answers) > 1:
rank = len(filtered_answers)
for answer in filtered_answers:
dist = rank / len(filtered_answers)
disbn.append(answer['a_rank'])
rank = rank - 1
train_posts_ranking.append(
InputExample(texts=[obj['q_text'], answer['a_text']],
label=dist))
random.shuffle(train_posts_ranking)
print("data size " + str(len(train_posts_ranking)))
if is_test:
return train_posts_ranking
if max_size:
train_posts_ranking = train_posts_ranking[:max_size]
evaluator = None
if posts_rank_str == validate:
train_posts_ranking, dev_posts_ranking = train_test_split(
train_posts_ranking, test_size=0.1)
evaluator = EmbeddingSimilarityEvaluator.from_input_examples(
dev_posts_ranking, name='posts ranking')
warmup_steps = math.ceil(
len(train_posts_ranking) * num_epochs / batch_size *
0.1) # 10% of train data for warm-up
train_data_posts_ranking = SentencesDataset(train_posts_ranking,
model=model)
train_dataloader_posts_ranking = DataLoader(train_data_posts_ranking,
shuffle=True,
batch_size=batch_size)
train_loss_posts_ranking = losses.CosineSimilarityLoss(model=model)
print('R: Number of training examples: ', len(train_posts_ranking))
global evaluation_steps
evaluation_steps = math.ceil(len(train_posts_ranking) / 0.1)
return train_dataloader_posts_ranking, train_loss_posts_ranking, evaluator, warmup_steps
def dev_config(sts_reader, model, batch_size):
'''dev dataloader and model'''
logger.info(f"Read STSbenchmark dev dataset")
dev_data = SentencesDataset(examples=sts_reader.get_examples('sts-dev.csv'), model=model)
dev_dataloader = DataLoader(dev_data, shuffle=False, batch_size=batch_size)
dev_loss = losses.CosineSimilarityLoss(model=model)
dev_evaluator = EmbeddingSimilarityEvaluator(dev_dataloader)
return dev_loss, dev_dataloader, dev_evaluator
def train_config(sts_reader, model, batch_size):
'''train dataloader and model.'''
logger.info(f"Read STSbenchmark train dataset")
train_data = SentencesDataset(sts_reader.get_examples('sts-train.csv'), model)
train_dataloader = DataLoader(train_data, shuffle=True, batch_size=batch_size)
train_loss = losses.CosineSimilarityLoss(model=model)
train_evaluator = EmbeddingSimilarityEvaluator(train_dataloader)
return train_data, train_loss, train_dataloader, train_evaluator
def main():
parser = set_parser()
args = parser.parse_args()
# 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.info("arguments are parsed")
args.world_size = args.gpus * args.nodes
patent_reader = PatentDataReader(args.data_dir, normalize_scores=True)
# Use BERT for mapping tokens to embeddings
logger.warning("Loading Bert Model")
word_embedding_model = models.BERT('bert-base-uncased', max_seq_length=510)
logger.warning("Model is loaded")
# Apply mean pooling to get one fixed sized sentence vector
pooling_model = models.Pooling(
word_embedding_model.get_word_embedding_dimension(),
pooling_mode_mean_tokens=True,
pooling_mode_cls_token=False,
pooling_mode_max_tokens=False)
if args.use_tpu:
logger.warning("TPU training")
device = xm.xla_device()
args.n_gpu = 1
elif args.local_rank == -1:
logger.warning("Non dist training")
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
args.n_gpu = torch.cuda.device_count()
else: # Initializes the distributed backend which will take care of sychronizing nodes/GPUs
logger.warning("Dist training local rank %s", args.local_rank)
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
torch.distributed.init_process_group(
backend="nccl", timeout=datetime.timedelta(hours=10))
args.n_gpu = 1
args.device = device
model = SentenceTransformer(modules=[word_embedding_model, pooling_model])
train_loss = losses.CosineSimilarityLoss(model=model)
model.to(args.device)
train_loss.to(args.device)
# Training
if args.do_train:
logger.warning("Read Patent Training dataset")
train_data = load_and_cache_examples(args, patent_reader, model)
logger.warning("Training dataset is loaded")
# train_data = SentencesDataset(patent_reader.get_examples('train.tsv', max_examples=17714), model)
tr_loss = train(args, train_data, model, train_loss)
logger.info(" average loss = %s", tr_loss)
def fit_model(trial, train_fold, val_fold, fold_index):
print("######################")
print("start of fold_index:", fold_index)
print("len(train_fold)", len(train_fold))
print("len(val_fold)", len(val_fold))
batch_size = trial.suggest_int("train_batch_size", 4, 50)
num_epochs = trial.suggest_int("num_epochs", 1, 4)
lr = trial.suggest_uniform("lr", 2e-6, 2e-4)
eps = trial.suggest_uniform("eps", 1e-7, 1e-5)
weight_decay = trial.suggest_uniform("weight_decay", 0.001, 0.1)
warmup_steps_mul = trial.suggest_uniform("warmup_steps_mul", 0.1, 0.5)
model = SentenceTransformer(model_name)
# create train dataloader
# train_sentece_dataset = SentencesDataset(train_fold, model=model) # this is deprecated
train_dataloader = DataLoader(train_fold,
shuffle=True,
batch_size=batch_size)
# define loss
train_loss = losses.CosineSimilarityLoss(model=model)
warmup_steps = math.ceil(
len(train_fold) * num_epochs / batch_size * warmup_steps_mul)
# Train the model
model.fit(
train_objectives=[(train_dataloader, train_loss)],
evaluator=None,
epochs=num_epochs,
warmup_steps=warmup_steps,
optimizer_params={
"lr": lr,
"eps": eps,
"correct_bias": False
},
weight_decay=weight_decay,
)
# evaluate the model
val_evaluator = EmbeddingSimilarityEvaluator.from_input_examples(
val_fold, name="val_set", main_similarity=SimilarityFunction.COSINE)
result = val_evaluator(model)
print("######################################################")
print("test result:", result)
print("######################################################")
if math.isnan(result):
result = 0.0
return result
def create_hirerachy_examples(fl,
data_dir,
model,
validate=None,
is_test=False):
train_hierarchy_samples = []
disbn = []
with open(os.path.join(data_dir, fl)) as f:
data = json.load(f)
max_distance = 0
for obj in data:
if obj['distance'] > max_distance:
max_distance = obj['distance']
for obj in data:
# flip the meaning of similarity, since the more distant the two classes, the closer to 0 it should be
dist = (max_distance - obj['distance']) / (max_distance - 1)
train_hierarchy_samples.append(
InputExample(texts=[obj['class1'], obj['class2']], label=dist))
disbn.append(obj['distance'])
random.shuffle(train_hierarchy_samples)
train_hierarchy_samples = train_hierarchy_samples[:100000]
disbn = disbn[:100000]
if max_size:
train_hierarchy_samples = train_hierarchy_samples[:max_size]
disbn = disbn[:max_size]
if is_test:
return train_hierarchy_samples
evaluator = None
if hierarchy_str == validate:
train_hierarchy_samples, dev_hierarchy_samples = train_test_split(
train_hierarchy_samples, stratify=disbn, test_size=0.1)
evaluator = EmbeddingSimilarityEvaluator.from_input_examples(
dev_hierarchy_samples, name='hierarchy')
warmup_steps = math.ceil(
len(train_hierarchy_samples) * num_epochs / batch_size *
0.1) # 10% of train data for warm-up
train_data_hierarchy = SentencesDataset(train_hierarchy_samples,
model=model)
train_dataloader_hierarchy = DataLoader(train_data_hierarchy,
shuffle=True,
batch_size=batch_size)
train_loss_hierarchy = losses.CosineSimilarityLoss(model=model)
print('H: Number of training examples: ', len(train_hierarchy_samples))
global evaluation_steps
evaluation_steps = math.ceil(len(train_hierarchy_samples) / 0.1)
return train_dataloader_hierarchy, train_loss_hierarchy, evaluator, warmup_steps
def construct_model(base_model, encoder_style):
# word_embedding_model = models.Transformer(base_model, max_seq_length=256)
# pooling_model = models.Pooling(word_embedding_model.get_word_embedding_dimension())
# model = SentenceTransformer(modules=[word_embedding_model, pooling_model])
if encoder_style == BIENCODER:
model = SentenceTransformer(base_model)
train_loss = losses.CosineSimilarityLoss(model)
elif encoder_style == CROSSENCODER:
model = CrossEncoder(base_model, num_labels=1, max_length=512)
train_loss = None
return model, train_loss
def run():
train_file = config.TRAINING_FILE
train_batch = config.TRAIN_BATCH_SIZE
vaild_batch = config.VALID_BATCH_SIZE
model_path = config.BERT_PATH
max_length = config.MAX_LEN
dfs = pd.read_csv(train_file,
sep="\t",
names=['idx', 'sent1', 'sent2', 'label'])
dfs['label'] = pd.to_numeric(dfs["label"], downcast='float')
df_train, df_valid = model_selection.train_test_split(
dfs,
test_size=0.1,
random_state=42,
stratify=dfs.label.values,
)
df_train = df_train.reset_index(drop=True)
df_valid = df_valid.reset_index(drop=True)
dataset_reader = dataset.Dataset()
train_dataset = dataset_reader.read(df_train, return_pt=True)
valid_sentence1, valid_sentence2, valid_labels = dataset_reader.read(
df_valid)
train_dataloader = DataLoader(train_dataset,
shuffle=True,
batch_size=train_batch)
# evaluator = evaluation.EmbeddingSimilarityEvaluator(valid_sentence1, valid_sentence2, valid_labels)
evaluator = evaluation.BinaryClassificationEvaluator(
valid_sentence1,
valid_sentence2,
valid_labels,
batch_size=vaild_batch,
show_progress_bar=False)
word_embedding_model = models.Transformer(model_path,
max_seq_length=max_length)
pooling_model = models.Pooling(
word_embedding_model.get_word_embedding_dimension())
dense_model = models.Dense(
in_features=pooling_model.get_sentence_embedding_dimension(),
out_features=max_length,
activation_function=nn.Tanh())
model = SentenceTransformer(
modules=[word_embedding_model, pooling_model, dense_model])
train_loss = losses.CosineSimilarityLoss(model)
engine.train(train_dataloader, model, train_loss, evaluator)
def __init__(self, ):
self.batch_size = 16
self.reader = DataReader('')
self.model_save_path1 = DATAPATH + 'model_dump' + datetime.now(
).strftime("%Y-%m-%d_%H-%M-%S")
self.model1 = SentenceTransformer('bert-base-nli-mean-tokens')
self.model_save_path2 = DATAPATH + 'model_2_dump' + datetime.now(
).strftime("%Y-%m-%d_%H-%M-%S")
self.model2 = SentenceTransformer('bert-base-nli-mean-tokens')
self.train_loss1 = losses.CosineSimilarityLoss(model=self.model1)
self.train_loss2 = losses.CosineSimilarityLoss(model=self.model2)
self.df1 = None
self.train_data1 = None
self.train_dataloader1 = None
self.df2 = None
self.train_data2 = None
self.train_dataloader2 = None
def nlptrain(premodel,ver,tr_data,te_data):
#### Just some code to print debug information to stdout
logging.basicConfig(format='%(asctime)s - %(message)s',
datefmt='%Y-%m-%d %H:%M:%S',
level=logging.INFO,
handlers=[LoggingHandler()])
#### /print debug information to stdout
# Read the dataset
model_name = 'roberta-large-nli-stsb-mean-tokens'
train_batch_size = 16
num_epochs = 4
model_save_path = ver
sts_reader = STSDataReader('kt_datasets/kt_benchmark', normalize_scores=True)
# Load a pre-trained sentence transformer model
model = SentenceTransformer(premodel)
# Convert the dataset to a DataLoader ready for training
logging.info("")
train_data = SentencesDataset(sts_reader.get_examples(tr_data), model)
train_dataloader = DataLoader(train_data, shuffle=True, batch_size=train_batch_size)
train_loss = losses.CosineSimilarityLoss(model=model)
logging.info("")
dev_data = SentencesDataset(examples=sts_reader.get_examples(te_data), model=model)
dev_dataloader = DataLoader(dev_data, shuffle=False, batch_size=train_batch_size)
evaluator = EmbeddingSimilarityEvaluator(dev_dataloader)
# Configure the training. We skip evaluation in this example
warmup_steps = math.ceil(len(train_data)*num_epochs/train_batch_size*0.1) #10% of train data for warm-up
logging.info("Warmup-steps: {}".format(warmup_steps))
# Train the model
model.fit(train_objectives=[(train_dataloader, train_loss)],
evaluator=evaluator,
epochs=num_epochs,
evaluation_steps=1000,
warmup_steps=warmup_steps,
output_path=model_save_path)
list=['model saved in '+ ver+' directory']
return(list)
def fit_model(params, languages, train_data):
print("######################")
print("start of languages:", languages)
batch_size = params["train_batch_size"]
num_epochs = params["num_epochs"]
lr = params["lr"]
eps = params["eps"]
weight_decay = params["weight_decay"]
warmup_steps_mul = params["warmup_steps_mul"]
model = SentenceTransformer(model_name)
# create train dataloader
# train_sentece_dataset = SentencesDataset(train_fold, model=model) # this is deprecated
train_dataloader = DataLoader(train_data,
shuffle=True,
batch_size=batch_size)
# define loss
train_loss = losses.CosineSimilarityLoss(model=model)
warmup_steps = math.ceil(
len(train_data) * num_epochs / batch_size * warmup_steps_mul)
output_path = os.path.join(
base_output_path,
f"cross-{languages[0]}-{languages[1]}-roberta-sentence-transformer",
)
# Train the model
model.fit(
train_objectives=[(train_dataloader, train_loss)],
evaluator=None,
epochs=num_epochs,
warmup_steps=warmup_steps,
optimizer_params={
"lr": lr,
"eps": eps,
"correct_bias": False
},
weight_decay=weight_decay,
)
# save model
model.save(output_path)
return output_path
def create_train_usage(fl, data_dir, model, validate=None, is_test=False):
train_usage = []
with open(os.path.join(data_dir, fl)) as f:
data = json.load(f)
min_d = 10000000
max_d = 0
for obj in data:
dist = obj['distance']
if dist < min_d:
min_d = dist
if dist > max_d:
max_d = dist
for obj in data:
dist = (max_d - obj['distance']) / (max_d - min_d)
train_usage.append(
InputExample(texts=[obj['class1'], obj['class2']], label=dist))
random.shuffle(train_usage)
if is_test:
return train_usage
if max_size:
train_usage = train_usage[:max_size]
evaluator = None
if usage_str == validate:
train_usage, dev_usage = train_test_split(train_usage, test_size=0.1)
evaluator = EmbeddingSimilarityEvaluator.from_input_examples(
dev_usage, name='usage')
warmup_steps = math.ceil(len(train_usage) * num_epochs / batch_size *
0.1) # 10% of train data for warm-up
train_data_usage = SentencesDataset(train_usage, model=model)
train_dataloader_usage = DataLoader(train_data_usage,
shuffle=True,
batch_size=batch_size)
train_loss_usage = losses.CosineSimilarityLoss(model=model)
print('U: Number of training examples: ', len(train_usage))
global evaluation_steps
evaluation_steps = math.ceil(len(train_usage) / 0.1)
return train_dataloader_usage, train_loss_usage, evaluator, warmup_steps
def test_train_stsb(self):
word_embedding_model = models.Transformer('distilbert-base-uncased')
pooling_model = models.Pooling(
word_embedding_model.get_word_embedding_dimension())
model = SentenceTransformer(
modules=[word_embedding_model, pooling_model])
train_dataset = SentencesDataset(self.stsb_train_samples, model)
train_dataloader = DataLoader(train_dataset,
shuffle=True,
batch_size=16)
train_loss = losses.CosineSimilarityLoss(model=model)
model.fit(train_objectives=[(train_dataloader, train_loss)],
evaluator=None,
epochs=1,
evaluation_steps=1000,
warmup_steps=int(len(train_dataloader) * 0.1),
use_amp=True)
self.evaluate_stsb_test(model, 80.0)
def sentenceTransformers(self, tokens, preprocess_obj, batch_size,
num_epoch):
model = SentenceTransformer('distilbert-base-nli-mean-tokens')
word_embedding_model = model._first_module()
train_dataloader = DataLoader(self.train_examples,
shuffle=True,
batch_size=batch_size)
train_loss = losses.CosineSimilarityLoss(model)
print(tokens)
word_embedding_model.tokenizer.add_tokens(list(tokens),
special_tokens=True)
word_embedding_model.auto_model.resize_token_embeddings(
len(word_embedding_model.tokenizer))
model.fit(train_objectives=[(train_dataloader, train_loss)],
epochs=num_epoch,
warmup_steps=100,
output_path=os.path.join(os.getcwd(),
"bureau/models/" + "ST"))
#################################################################################################
logging.info(
"Step 3: Train bi-encoder: {} with STSbenchmark (gold + silver dataset)".
format(model_name))
# Convert the dataset to a DataLoader ready for training
logging.info("Read STSbenchmark gold and silver train dataset")
silver_samples = list(InputExample(texts=[data[0], data[1]], label=score) for \
data, score in zip(silver_data, silver_scores))
train_dataset = SentencesDataset(gold_samples + silver_samples, bi_encoder)
train_dataloader = DataLoader(train_dataset,
shuffle=True,
batch_size=batch_size)
train_loss = losses.CosineSimilarityLoss(model=bi_encoder)
logging.info("Read STSbenchmark dev dataset")
evaluator = EmbeddingSimilarityEvaluator.from_input_examples(dev_samples,
name='sts-dev')
# Configure the training.
warmup_steps = math.ceil(len(train_dataset) * num_epochs / batch_size *
0.1) #10% of train data for warm-up
logging.info("Warmup-steps: {}".format(warmup_steps))
# Train the bi-encoder model
bi_encoder.fit(train_objectives=[(train_dataloader, train_loss)],
evaluator=evaluator,
epochs=num_epochs,
evaluation_steps=1000,
def train_similarity_sentenceBERT(robot_id, version):
"""
训练 意图识别 模型
"""
max_seq_length = 24
batch_size = 128
labels = ["0", "1"]
# 和蓝博士反复测试， bert-tiny 版，训练异常，一直无法学习，尝试多组参数（训练epoch、学习率、批次大小等）
# pretrain_name = "bert-tiny"
# 哈工大版本，可以学习
# pretrain_name = "roberta_wwm_ext_3"
# 经测试，下面预训练好相似度模型（sentence bert结构会加快收敛速度，由于测试数据少，准确率都在100%，这个无意义）
pretrain_name = "distiluse-base-multilingual-cased-v2"
train_dir = "train_files"
# 初始化权重模型位置
pretrain_path = f"pretrained_models/{pretrain_name}"
path = f"config_models/robot_{robot_id}_version_{version}.model"
print("model_path")
print(path)
if os.path.exists(pretrain_path):
_ = f"start train sentence_bert model, robot_id: {robot_id}, version:{version} "
print(_), logging.info(_)
c: Config = pickle.load(open(path, "rb"))
temp_dir = f"{train_dir}/robot_{robot_id}_version_{version}_sentbert"
if not os.path.exists(temp_dir):
os.mkdir(temp_dir)
examples_train, examples_dev = prepare_csv_data(c, temp_dir)
# pretrain_path='/data4/azun/project_dialout/pretrained_models/distiluse-base-multilingual-cased-v2'
print(pretrain_path)
print("训练集")
print(len(examples_train))
print("测试集")
print(len(examples_dev))
if (len(examples_train) > 50000):
examples_train = examples_train[:50000]
if (len(examples_dev) > 5000):
examples_dev = examples_dev[:4000]
####################### ####################### ####################### ####################### ####################### #######################
####################### ####################### ####################### ####################### ####################### #######################
model = SentenceTransformer(pretrain_path)
train_dataset = SentencesDataset(examples_train, model)
train_dataloader = DataLoader(train_dataset,
shuffle=True,
batch_size=16)
train_loss = losses.CosineSimilarityLoss(model)
model.fit(train_objectives=[(train_dataloader, train_loss)],
epochs=1,
warmup_steps=100)
model.save(
f"config_models/robot_{robot_id}_version_{version}_similarity_sentbert"
)
print("模型保存成功，地址是：")
print(
f"config_models/robot_{robot_id}_version_{version}_similarity_sentbert"
)
####################### ####################### ####################### ####################### ####################### #######################
####################### ####################### ####################### ####################### ####################### #######################
result = {"train": 0.921, "dev": 0.932}
# command = f"cp {pretrain_path}/bert_config.json config_models/robot_{robot_id}_version_{version}_similarity"
# os.system(command)
# command = f"cp {pretrain_path}/vocab.txt config_models/robot_{robot_id}_version_{version}_similarity"
# os.system(command)
# 需要上传下成绩，更新到数据库
conn = pool.connection() # 以后每次需要数据库连接就是用connection（）函数获取连接就好了
cur = conn.cursor()
try:
similarity_result = json.dumps(result, ensure_ascii=False)
sql_ = f"UPDATE {TABLE_NAME} SET SIMILARITY_RESULT='{similarity_result}',UPDATED_AT=NOW() " \
f"WHERE robot_id='{robot_id}' and version_id='{version}' and DELETE_FLAG=0 and CLUSTER='{CLUSTER}';"
print(sql_)
index = cur.execute(sql_)
conn.commit()
except Exception as e:
print(repr(e))
pass
finally:
cur.close()
conn.close()
#####这里是更新intent，result现在做只是为了适配以前的后端，以后删除
conn = pool.connection() # 以后每次需要数据库连接就是用connection（）函数获取连接就好了
cur = conn.cursor()
try:
similarity_result = json.dumps(result, ensure_ascii=False)
sql_ = f"UPDATE {TABLE_NAME} SET INTENT_RESULT='{similarity_result}',UPDATED_AT=NOW() " \
f"WHERE robot_id='{robot_id}' and version_id='{version}' and DELETE_FLAG=0 and CLUSTER='{CLUSTER}';"
print(sql_)
index = cur.execute(sql_)
conn.commit()
except Exception as e:
print(repr(e))
pass
finally:
cur.close()
conn.close()
print(result)
else:
_ = f"can not found, robot_id: {robot_id}, version:{version} "
print(_), logging.info(_)
def main():
parser = argparse.ArgumentParser()
# Input and output configs
parser.add_argument("--task",
default=None,
type=str,
required=True,
help="the task to run bert ranker for")
parser.add_argument("--data_folder",
default=None,
type=str,
required=True,
help="the folder containing data")
parser.add_argument("--output_dir",
default=None,
type=str,
required=True,
help="the folder to output predictions")
# #Training procedure
parser.add_argument("--num_epochs",
default=5,
type=int,
required=False,
help="Number of epochs for training.")
parser.add_argument("--train_batch_size",
default=8,
type=int,
required=False,
help="Training batch size.")
# #Model hyperparameters
parser.add_argument("--transformer_model",
default="bert-base-cased",
type=str,
required=False,
help="Bert model to use (default = bert-base-cased).")
args = parser.parse_args()
word_embedding_model = models.Transformer(args.transformer_model)
pooling_model = models.Pooling(
word_embedding_model.get_word_embedding_dimension(),
pooling_mode_mean_tokens=True,
pooling_mode_cls_token=False,
pooling_mode_max_tokens=False)
model = SentenceTransformer(modules=[word_embedding_model, pooling_model])
logging.info("Creating train CRR dataset.")
crr_reader = CRRBenchmarkDataReader('{}/{}'.format(args.data_folder,
args.task))
train_data = SentencesDataset(crr_reader.get_examples("train.tsv"), model)
train_dataloader = DataLoader(train_data,
shuffle=True,
batch_size=args.train_batch_size)
train_loss = losses.CosineSimilarityLoss(model=model)
logging.info("Creating dev CRR dataset.")
dev_data = SentencesDataset(crr_reader.get_examples('valid.tsv'), model)
dev_dataloader = DataLoader(dev_data,
shuffle=False,
batch_size=args.train_batch_size)
evaluator = EmbeddingSimilarityEvaluator(dev_dataloader)
warmup_steps = math.ceil(
len(train_data) * args.num_epochs / args.train_batch_size *
0.1) #10% of train data for warm-up
logging.info("Warmup-steps: {}".format(warmup_steps))
logging.info("Fitting sentenceBERT")
model.fit(train_objectives=[(train_dataloader, train_loss)],
evaluator=evaluator,
epochs=args.num_epochs,
evaluation_steps=1000,
warmup_steps=warmup_steps,
output_path=args.output_dir +
"{}_{}".format(args.transformer_model, args.task))
def main():
parser = set_parser()
args = parser.parse_args()
# 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.info("arguments are parsed")
args.world_size = args.gpus * args.nodes
patent_reader = PatentDataReader(args.data_dir, normalize_scores=True)
# Use BERT for mapping tokens to embeddings
word_embedding_model = models.BERT('bert-base-cased', max_seq_length=510)
# Apply mean pooling to get one fixed sized sentence vector
pooling_model = models.Pooling(
word_embedding_model.get_word_embedding_dimension(),
pooling_mode_mean_tokens=True,
pooling_mode_cls_token=False,
pooling_mode_max_tokens=False)
# Setup CUDA, GPU & distributed training
if args.local_rank == -1:
logger.warning("Non dist training")
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
args.n_gpu = torch.cuda.device_count()
else: # Initializes the distributed backend which will take care of sychronizing nodes/GPUs
logger.warning("Dist training local rank %s", args.local_rank)
torch.cuda.set_device(args.local_rank)
device = torch.device("cuda", args.local_rank)
torch.distributed.init_process_group(
backend="nccl", timeout=datetime.timedelta(hours=10))
args.n_gpu = 1
args.device = device
model = SentenceTransformer(modules=[word_embedding_model, pooling_model])
train_loss = losses.CosineSimilarityLoss(model=model)
model.to(args.device)
train_loss.to(args.device)
if args.fp16:
try:
import apex
apex.amp.register_half_function(torch, "einsum")
except ImportError:
raise ImportError(
"Please install apex from https://www.github.com/nvidia/apex to use fp16 training."
)
logger.info("Training/evaluation parameters %s", args)
# Training
if args.do_train:
logger.warning("Read Patent Training dataset")
train_data = load_and_cache_examples(args, patent_reader, model)
if args.eval_during_train:
logging.info("Read STSbenchmark dev dataset")
dev_data = load_and_cache_examples(args,
patent_reader,
model,
evaluate=True)
else:
dev_data = None
# train_data = SentencesDataset(patent_reader.get_examples('train.tsv', max_examples=17714), model)
tr_loss = train(args,
train_data,
model,
train_loss,
dev_dataset=dev_data)
logger.info(" average loss = %s", tr_loss)
# print(word_embedding_model.fc1(x).size())
import math
from sentence_transformers import losses
from sentence_transformers.evaluation import EmbeddingSimilarityEvaluator
# model_save_path = 'output/training_stsbenchmark_continue_training-'+model_name+'-'+datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
# model_save_path = './models/clinical_bert/finetuned/output2'
train_dataloader = DataLoader(train_samples,
shuffle=True,
batch_size=train_batch_size)
train_loss = losses.CosineSimilarityLoss(model=word_embedding_model)
# Development set: Measure correlation between cosine score and gold labels
logging.info("Read SNLIbenchmark dev dataset")
# evaluator = EmbeddingSimilarityEvaluator.from_input_examples(dev_samples, name='sts-dev')
# Configure the training. We skip evaluation in this example
warmup_steps = math.ceil(len(train_dataloader) * num_epochs *
0.1) #10% of train data for warm-up
logging.info("Warmup-steps: {}".format(warmup_steps))
# Train the model
word_embedding_model.fit(
train_objectives=[(train_dataloader, train_loss)],
# evaluator=evaluator,
epochs=num_epochs,
def main(args):
#### Just some code to print debug information to stdout
logging.basicConfig(format='%(asctime)s - %(message)s',
datefmt='%Y-%m-%d %H:%M:%S',
level=logging.INFO,
handlers=[LoggingHandler()])
#### /print debug information to stdout
#You can specify any huggingface/transformers pre-trained model here, for example, bert-base-uncased, roberta-base, xlm-roberta-base
#model_name = sys.argv[1] if len(sys.argv) > 1 else 'bert-base-uncased'
model_name = args.model_name
if model_name is None:
model_name = 'bert-base-chinese'
# Read the dataset
batch_size = args.batch_size
model_output_dir = args.model_output_dir
#model_save_path = os.path.join(model_output_dir, "bert-base", datetime.now().strftime("%Y-%m-%d_%H-%M-%S"))
model_save_path = model_output_dir
# Use Huggingface/transformers model (like BERT, RoBERTa, XLNet, XLM-R) for mapping tokens to embeddings
# word_embedding_model = models.Transformer(model_name)
if args.init_model is None:
word_embedding_model = models.Transformer(model_name)
# Apply mean pooling to get one fixed sized sentence vector
pooling_model = models.Pooling(
word_embedding_model.get_word_embedding_dimension(),
pooling_mode_mean_tokens=True,
pooling_mode_cls_token=False,
pooling_mode_max_tokens=False)
model = SentenceTransformer(
modules=[word_embedding_model, pooling_model])
else:
model = SentenceTransformer(args.init_model)
if args.do_train == 1:
# Convert the dataset to a DataLoader ready for training
data_reader = SimTextDataReader()
logging.info("train_data:%s" % (args.train_data))
logging.info("cache_data:%s" % (args.cached_data))
train_data_files = args.train_data.split('#')
cached_data_file = args.cached_data
logging.info("Read train dataset")
if not os.path.isfile(cached_data_file):
train_examples = []
for train_file in train_data_files:
if os.path.isfile(train_file):
logging.info("load train file:%s" % (train_file))
now_examples = data_reader.get_examples(train_file)
train_examples.extend(now_examples)
train_data = SentencesDataset(train_examples, model=model)
torch.save(train_data, args.cached_data)
else:
train_data = torch.load(cached_data_file)
logging.info("Load cached dataset %s" % (cached_data_file))
logging.info("Build train dataset")
train_dataloader = DataLoader(train_data,
shuffle=True,
batch_size=batch_size)
# train_loss = losses.SoftmaxLoss(model=model, sentence_embedding_dimension=model.get_sentence_embedding_dimension(), num_labels=train_num_labels)
train_loss = losses.CosineSimilarityLoss(model=model)
logging.info("Read dev dataset")
dev_data_files = args.dev_data.split('#')
dev_examples = []
for dev_file in dev_data_files:
if os.path.isfile(dev_file):
logging.info("load dev file:%s" % (dev_file))
now_examples = data_reader.get_examples(dev_file)
dev_examples.extend(now_examples)
dev_data = SentencesDataset(examples=dev_examples, model=model)
logging.info("Build dev dataset")
dev_dataloader = DataLoader(dev_data,
shuffle=False,
batch_size=batch_size)
evaluator = EmbeddingSimilarityEvaluator(dev_dataloader)
# Configure the training
num_epochs = args.num_epochs
warmup_steps = math.ceil(
len(train_dataloader) * num_epochs / batch_size *
0.1) #10% of train data for warm-up
logging.info("Warmup-steps: {}".format(warmup_steps))
logging.info("Start training")
# Train the model
model.fit(train_objectives=[(train_dataloader, train_loss)],
evaluator=evaluator,
epochs=num_epochs,
evaluation_steps=1000,
warmup_steps=warmup_steps,
output_path=model_save_path)
if args.do_predict == 1:
logging.info("Read predict dataset")
pred_data_file = args.pred_data
output_file = os.path.join(args.model_output_dir, "pred_res")
text_pairs = load_pred_data(pred_data_file)
with open(output_file, "w", encoding="utf-8") as fp:
for tpair in text_pairs:
embedding_pair = model.encode(tpair)
cos_sim = cosine_similarity(embedding_pair[0],
embedding_pair[1])
fp.write("%s\t%s\t%f\n" % (tpair[0], tpair[1], cos_sim))
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_name_or_path",
default=None,
type=str,
required=True,
help=
"Path to pre-trained model or shortcut name selected in the list: ",
)
parser.add_argument(
"--output_dir",
default=None,
type=str,
required=True,
help=
"The output directory where the model predictions and checkpoints will be written.",
)
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(
"--max_seq_length",
default=510,
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(
"--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("--learning_rate",
default=5e-5,
type=float,
help="The initial learning rate for Adam.")
parser.add_argument("--local_rank",
type=int,
default=-1,
help="For distributed training: local_rank")
parser.add_argument("--do_train",
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.")
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),
)
#TODO: Prepare Dataloader
patent_reader = PatentDataReader(args.data_dir, normalize_scores=True)
model = SentenceTransformer(args.model_name_or_path)
test_data = SentencesDataset(examples=patent_reader.get_examples(
"dev.tsv", max_examples=40),
model=model)
test_dataloader = DataLoader(test_data,
shuffle=False,
batch_size=args.per_gpu_train_batch_size)
evaluator = EmbeddingSimilarityEvaluator(test_dataloader)
model.evaluate(evaluator)
# Convert the dataset to a DataLoader ready for training
print("Read STSbenchmark train dataset")
train_data = SentencesDataset(
patent_reader.get_examples('train.tsv', max_examples=17714), model)
train_dataloader = DataLoader(train_data,
shuffle=True,
batch_size=args.per_gpu_train_batch_size)
train_loss = losses.CosineSimilarityLoss(model=model)
# Load pretrained model and tokenizer
if args.local_rank not in [-1, 0]:
torch.distributed.barrier(
) # Make sure only the first process in distributed training will download model & vocab
model.to(args.device)
logger.info("Training/evaluation parameters %s", args)
# Training
if args.do_train:
train_data = SentencesDataset(
patent_reader.get_examples('train.tsv', max_examples=17714), model)
global_step, tr_loss = train(args, train_dataset, model, tokenizer)
logger.info(" global_step = %s, average loss = %s", global_step,
tr_loss)
# Add two trainable feed-forward networks (DAN)
sent_embeddings_dimension = pooling_model.get_sentence_embedding_dimension()
dan1 = models.Dense(in_features=sent_embeddings_dimension,
out_features=sent_embeddings_dimension)
dan2 = models.Dense(in_features=sent_embeddings_dimension,
out_features=sent_embeddings_dimension)
model = SentenceTransformer(
modules=[word_embedding_model, word_weights, pooling_model, dan1, dan2])
# Convert the dataset to a DataLoader ready for training
logging.info("Read STSbenchmark train dataset")
train_data = SentencesDataset(sts_reader.get_examples('sts-train.csv'),
model=model)
train_dataloader = DataLoader(train_data, shuffle=True, batch_size=batch_size)
train_loss = losses.CosineSimilarityLoss(model=model)
logging.info("Read STSbenchmark dev dataset")
dev_data = SentencesDataset(examples=sts_reader.get_examples('sts-dev.csv'),
model=model)
dev_dataloader = DataLoader(dev_data, shuffle=False, batch_size=batch_size)
evaluator = EmbeddingSimilarityEvaluator(dev_dataloader)
# Configure the training
num_epochs = 10
warmup_steps = math.ceil(len(train_data) * num_epochs / batch_size *
0.1) #10% of train data for warm-up
logging.info("Warmup-steps: {}".format(warmup_steps))
# Train the model
model.fit(train_objectives=[(train_dataloader, train_loss)],
def BertEM(path_train, path_valid, path_test, path_error, epochs_num,
warmup_steps_num, evaluation_steps_num):
#实例化进度条
bar = progressbar
#定义模型
#model = SentenceTransformer('bert-large-nli-stsb-mean-tokens',device='cuda:1')
model = SentenceTransformer('distilbert-base-nli-stsb-mean-tokens',
device='cuda:6')
#model = SentenceTransformer('roberta-large-nli-stsb-mean-tokens',device='cuda:2')
data_type = {"text_a": str, "text_b": str}
train_data = pd.read_csv(path_train, encoding='utf-8', dtype=data_type)
valid_data = pd.read_csv(path_valid, encoding='utf-8', dtype=data_type)
test_data = pd.read_csv(path_test, encoding='utf-8', dtype=data_type)
#训练集
train_examples = []
for i in bar.progressbar(range(len(train_data))):
time.sleep(0.0001)
text_a = train_data.iloc[i]['text_a']
text_b = train_data.iloc[i]['text_b']
text_a = str(text_a)
text_b = str(text_b)
label_data = train_data.iloc[i]['label']
label_data = float(label_data)
train_examples.append(
InputExample(texts=[text_a, text_b], label=label_data))
print(InputExample)
#验证集
sentence_a = []
sentence_b = []
label_valid = []
for i in bar.progressbar(range(len(valid_data))):
time.sleep(0.0001)
sentence1 = valid_data.iloc[i]['text_a']
sentence2 = valid_data.iloc[i]['text_b']
label_valid_t = valid_data.iloc[i]['label']
label_valid_t = float(label_valid_t)
sentence_a.append(sentence1)
sentence_b.append(sentence2)
label_valid.append(label_valid_t)
#定义评估器
#evaluator = evaluation.EmbeddingSimilarityEvaluator(sentence_a, sentence_b, label_valid)
evaluator = evaluation.BinaryClassificationEvaluator(
sentence_a, sentence_b, label_valid)
#定义数据集，损失函数
train_dataset = SentencesDataset(train_examples, model)
train_dataloader = DataLoader(train_dataset, shuffle=True, batch_size=16)
train_loss = losses.CosineSimilarityLoss(model)
#计算时间
start_time = time.clock()
#训练模型
model.fit(train_objectives=[(train_dataloader, train_loss)],
epochs=epochs_num,
warmup_steps=warmup_steps_num,
evaluator=evaluator,
evaluation_steps=evaluation_steps_num,
use_amp=True)
end_time = time.clock()
#=========================================评估过程===================================================
#读取并把test所有属性转化成str
test_data = pd.read_csv(path_test, encoding='utf-8')
test_data['text_a'] = test_data['text_a'].map(lambda x: str(x))
test_data['text_b'] = test_data['text_b'].map(lambda x: str(x))
#循环创建预测的list字典
list_num = 40
prefix = 'pred_list_'
test_map = {prefix + str(i): [] for i in range(list_num)}
label_list = []
score = 0.20
error_csv = pd.DataFrame(columns=('id', 'text_a', 'text_b', 'cos_scores'))
#进入测试集测试
for i in bar.progressbar(range(len(test_data))):
time.sleep(0.0001)
text_a_embedding = model.encode(test_data.iloc[i]['text_a'],
convert_to_tensor=True)
text_b_embedding = model.encode(test_data.iloc[i]['text_b'],
convert_to_tensor=True)
cos_scores = util.pytorch_cos_sim(text_a_embedding,
text_b_embedding)[0]
cos_scores = cos_scores.cpu()
#标签list
label = test_data.iloc[i]['label']
label_list.append(int(label))
#记录下错误的数据
if cos_scores >= 0.80:
pred_test = 1
else:
pred_test = 0
if pred_test != label:
error_text_a = test_data.iloc[i]['text_a']
error_text_b = test_data.iloc[i]['text_b']
error_cos_scores = cos_scores
error_csv = error_csv.append(pd.DataFrame({
'id': [i],
'text_a': [error_text_a],
'text_b': [error_text_b],
'cos_scores': [error_cos_scores]
}),
ignore_index=True)
#生成预测list
compute_pred(score, cos_scores, prefix, test_map)
error_csv.to_csv(path_error, index=0)
max_f1 = 0
target_threshold = 0.01
target_accuracy = 0.01
target_recall = 0.01
threshold = 0.20
#循环输出各种得分结果
for i in range(len(test_map.keys())):
#循环计算得分
accuracy, recall, f1 = compute_score(test_map[prefix + str(i)],
label_list)
if f1 >= max_f1:
max_f1 = f1
target_threshold = threshold
target_accuracy = accuracy
target_recall = recall
print('The score > {} result is accuracy: {}, | recall:{}, | f1: {}'.
format(round(threshold, 2), accuracy, recall, f1))
threshold += 0.02
#输出所有结果
print('================dataset_name==================', path_a)
print(
'================threshold:{}, target_accuracy:{}, target_recall:{}, max_f1:{}'
.format(target_threshold, target_accuracy, target_recall, max_f1))
print('================train_time:{}'.format(str(end_time - start_time)))
def main(args):
#### Just some code to print debug information to stdout
logging.basicConfig(format='%(asctime)s - %(message)s',
datefmt='%Y-%m-%d %H:%M:%S',
level=logging.INFO,
handlers=[LoggingHandler()])
#### /print debug information to stdout
# Read the dataset
train_batch_size = 64
num_epochs = 1000
if args.pretrained:
model = SentenceTransformer(args.pretrained)
model_save_path = os.path.join(
args.save_path,
args.pretrained.split("/")[-1] + '-' +
datetime.now().strftime("%Y-%m-%d_%H-%M-%S"))
else:
#You can specify any huggingface/transformers pre-trained model here, for example, bert-base-uncased, roberta-base, xlm-roberta-base
model_name = 'cl-tohoku/bert-base-japanese-char-whole-word-masking'
model_save_path = os.path.join(
args.save_path,
model_name.replace("/", "-") + '-' +
datetime.now().strftime("%Y-%m-%d_%H-%M-%S"))
# Use Huggingface/transformers model (like BERT, RoBERTa, XLNet, XLM-R) for mapping tokens to embeddings
word_embedding_model = models.Transformer(model_name)
# Apply mean pooling to get one fixed sized sentence vector
pooling_model = models.Pooling(
word_embedding_model.get_word_embedding_dimension(),
pooling_mode_mean_tokens=True,
pooling_mode_cls_token=False,
pooling_mode_max_tokens=False)
model = SentenceTransformer(
modules=[word_embedding_model, pooling_model])
# Convert the dataset to a DataLoader ready for training
logging.info("Read custom train dataset")
train_samples = []
val_samples = []
inp_list = []
dataset_path = args.data_path
with gzip.open(dataset_path, 'rt', encoding='utf8') as fIn:
reader = csv.DictReader(fIn, delimiter='\t', quoting=csv.QUOTE_NONE)
for row in reader:
score = float(
row['score']) / 10 # Normalize score to range 0 ... 1
inp_list.append(
InputExample(texts=[row['sentence1'], row['sentence2']],
label=score))
from sklearn.model_selection import train_test_split
train_samples, val_samples = train_test_split(inp_list, test_size=0.2)
# import ipdb; ipdb.set_trace()
train_dataset = SentencesDataset(train_samples, model)
train_dataloader = DataLoader(train_dataset,
shuffle=True,
batch_size=train_batch_size)
train_loss = losses.CosineSimilarityLoss(model=model)
logging.info("Read custom dev dataset")
# evaluator = EmbeddingSimilarityEvaluator.from_input_examples(val_samples, name='sts-dev')
evaluator = EmbeddingSimilarityEvaluator.from_input_examples(val_samples)
# Configure the training. We skip evaluation in this example
warmup_steps = math.ceil(
len(train_dataset) * num_epochs / train_batch_size *
0.1) #10% of train data for warm-up
logging.info("Warmup-steps: {}".format(warmup_steps))
# import ipdb; ipdb.set_trace()
# Train the model
model.fit(train_objectives=[(train_dataloader, train_loss)],
evaluator=evaluator,
epochs=num_epochs,
evaluation_steps=1000,
warmup_steps=warmup_steps,
output_path=model_save_path)
def train(model_name_or_path: str,
hf_dataset: str,
aspect: str,
fold: Union[int, str],
output_path: str,
train_epochs: int = 3,
train_batch_size: int = 25,
eval_batch_size: int = 32,
evaluation_steps: int = 5000,
train_on_test: bool = False,
loss: str = 'multiple_negatives_ranking',
override: bool = False):
"""
# $MODEL_NAME $HF_DATASET $ASPECT $FOLD $OUTPUT_DIR --train_epochs=3 --train_batch_size=$TRAIN_BATCH_SIZE --eval_batch_size=$EVAL_BATCH_SIZE
Run with:
$ export CUDA_VISIBLE_DEVICES=1
$ ./sentence_transformer_cli.py train scibert-scivocab-uncased paperswithcode_task_docs 1 ./output/st_scibert/1 --train_epochs=3 --train_batch_size=25 --eval_batch_size=32
:param loss: Training loss function (choices: multiple_negatives_ranking, cosine)
:param train_on_test: If True, joint training on train and test set (validation disabled)
:param aspect:
:param evaluation_steps:
:param train_epochs:
:param model_name_or_path:
:param hf_dataset:
:param fold:
:param output_path:
:param train_batch_size:
:param eval_batch_size:
:param override:
:return:
"""
top_ks = [5, 10, 25, 50]
# cuda_device = -1
# hf_dataset = 'paperswithcode_task_docs'
# model_name_or_path = 'scibert-scivocab-uncased'
# fold = 1
max_token_length = 336 # ssee pwc_token_stats.ipynb
nlp_cache_dir = './data/nlp_cache'
# train_batch_size = 25
# eval_batch_size = 32
# override = False
# output_path = './output/pwc_task_st/1/sci-bert'
# output_path = os.path.join(output_path, str(fold), model_name_or_path) # output/1/sci-bert
if os.path.exists(output_path) and not override:
logger.error(f'Stop. Output path exists already: {output_path}')
sys.exit(1)
# if cuda_device >= 0:
# os.environ["CUDA_VISIBLE_DEVICES"] = str(cuda_device)
# device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
# Model path from env
if not os.path.exists(model_name_or_path) and os.path.exists(
os.path.join(env['bert_dir'], model_name_or_path)):
model_name_or_path = os.path.join(env['bert_dir'], model_name_or_path)
word_embedding_model = Transformer(model_name_or_path,
max_seq_length=max_token_length)
pooling_model = Pooling(
word_embedding_model.get_word_embedding_dimension())
model = SentenceTransformer(modules=[word_embedding_model, pooling_model])
# tokenizer = BertTokenizer.from_pretrained(model_name_or_path)
# dataset
docs_ds = load_dataset(get_local_hf_dataset_path(hf_dataset),
name='docs',
cache_dir=nlp_cache_dir,
split='docs')
train_ds = load_dataset(get_local_hf_dataset_path(hf_dataset),
name='relations',
cache_dir=nlp_cache_dir,
split=get_train_split(aspect, fold))
test_ds = load_dataset(get_local_hf_dataset_path(hf_dataset),
name='relations',
cache_dir=nlp_cache_dir,
split=get_test_split(aspect, fold))
# filter for positive labels only
train_ds = train_ds.filter(lambda row: row['label'] == 'y')
logger.info(f'After filtering: {len(train_ds):,}')
# joint training on train and test?
if train_on_test:
#
# import pyarrow
# from datasets.arrow_dataset import Dataset
#
# full_ds_table = pyarrow.concat_tables([train_ds.data, test_ds.data])
# full_ds = Dataset(arrow_table=full_ds_table)
raise NotImplementedError('TODO Evaluator')
else:
# standard training on test only
train_sds = DocumentPairSentencesDataset(docs_ds,
train_ds,
model,
max_length=max_token_length,
forced_length=0)
train_sds.tokenize_all_docs()
evaluator = NearestNeighborsEvaluator(model,
docs_ds,
test_ds,
top_ks=top_ks,
batch_size=eval_batch_size,
show_progress_bar=True)
if loss == 'cosine':
train_loss = losses.CosineSimilarityLoss(model)
elif loss == 'multiple_negatives_ranking':
# A nice advantage of MultipleNegativesRankingLoss is that it only requires positive pairs
# https://github.com/UKPLab/sentence-transformers/tree/master/examples/training/quora_duplicate_questions
train_loss = losses.MultipleNegativesRankingLoss(model)
else:
raise ValueError(f'Unsupported loss function: {loss}')
train_dl = DataLoader(train_sds, shuffle=True, batch_size=train_batch_size)
# Training
model.fit(
train_objectives=[(train_dl, train_loss)],
epochs=train_epochs, # try 1-4
warmup_steps=100,
evaluator=evaluator,
evaluation_steps=
evaluation_steps, # increase to 5000 (full dataset => 20k steps)
output_path=output_path,
output_path_ignore_not_empty=True)
logger.info('Training done')
