def parse_seg(self, inputs):
"""
预测已切词的句子。
Args:
x: list(list(str)), 已分词的句子，类型为list
Returns:
outputs: list, 依存分析结果
Example:
>>> ddp = DDParser()
>>> inputs = [['百度', '是', '一家', '高科技', '公司'], ['他', '送', '了', '一本', '书']]
>>> ddp.parse_seg(inputs)
[{'word': ['百度', '是', '一家', '高科技', '公司'], 'head': [2, 0, 5, 5, 2], 'deprel': ['SBV', 'HED', 'ATT', 'ATT', 'VOB']},
{'word': ['他', '送', '了', '一本', '书'], 'head': [2, 0, 2, 5, 2], 'deprel': ['SBV', 'HED', 'MT', 'ATT', 'VOB']}]
>>> ddp = DDParser(prob=True)
>>> inputs = [['百度', '是', '一家', '高科技', '公司']]
>>> ddp.parse_seg(inputs)
[{'word': ['百度', '是', '一家', '高科技', '公司'], 'head': [2, 0, 5, 5, 2],
'deprel': ['SBV', 'HED', 'ATT', 'ATT', 'VOB'], 'prob': [1.0, 1.0, 1.0, 1.0, 1.0]}]
"""
if not inputs:
return
if all([isinstance(i, list) and i and all(i) for i in inputs]):
predicts = Corpus.load_word_segments(inputs, self.env.fields)
else:
logging.warning("please check the foramt of your inputs.")
return
dataset = TextDataset(predicts, [self.env.WORD, self.env.FEAT],
self.args.buckets)
# set the ddparser_data loader
dataset.loader = batchify(
dataset,
self.args.batch_size,
use_multiprocess=False,
sequential_sampler=True if not self.args.buckets else False,
)
pred_arcs, pred_rels, pred_probs = epoch_predict(
self.env, self.args, self.model, dataset.loader)
if self.args.buckets:
indices = np.argsort(
np.array([
i for bucket in dataset.buckets.values() for i in bucket
]))
else:
indices = range(len(pred_arcs))
predicts.head = [pred_arcs[i] for i in indices]
predicts.deprel = [pred_rels[i] for i in indices]
if self.args.prob:
predicts.prob = [pred_probs[i] for i in indices]
outputs = predicts.get_result()
if outputs[0].get("postag", None):
for output in outputs:
del output["postag"]
return outputs
def predict(env):
"""Predict"""
args = env.args
logging.info("Load the dataset")
if args.prob:
env.fields = env.fields._replace(PHEAD=Field('prob'))
predicts = Corpus.load(args.infer_data_path, env.fields)
dataset = TextDataset(predicts, [env.WORD, env.FEAT], args.buckets)
# set the data loader
dataset.loader = batchify(dataset, args.batch_size)
logging.info(f"{len(dataset)} sentences, "
f"{len(dataset.loader)} batches")
logging.info("Load the model")
model = load(args.model_path)
model.args = args
logging.info("Make predictions on the dataset")
start = datetime.datetime.now()
model.eval()
pred_arcs, pred_rels, pred_probs = epoch_predict(env, args, model,
dataset.loader)
total_time = datetime.datetime.now() - start
# restore the order of sentences in the buckets
indices = np.argsort(
np.array([i for bucket in dataset.buckets.values() for i in bucket]))
predicts.head = [pred_arcs[i] for i in indices]
predicts.deprel = [pred_rels[i] for i in indices]
if args.prob:
predicts.prob = [pred_probs[i] for i in indices]
logging.info(f"Save the predicted result to {args.infer_result_path}")
predicts.save(args.infer_result_path)
logging.info(f"{total_time}s elapsed, "
f"{len(dataset) / total_time.total_seconds():.2f} Sents/s")
def evaluate(env):
"""Evaluate"""
arguments = env.args
punctuation = dygraph.to_variable(env.puncts, zero_copy=False)
logging.info("Load the dataset")
evaluates = Corpus.load(arguments.test_data_path, env.fields)
dataset = TextDataset(evaluates, env.fields, arguments.buckets)
# set the ddparser_data loader
dataset.loader = batchify(dataset, arguments.batch_size)
logging.info("{} sentences, ".format(len(dataset)) +
"{} batches, ".format(len(dataset.loader)) +
"{} buckets".format(len(dataset.buckets)))
logging.info("Load the model")
model = load(arguments.model_path)
logging.info("Evaluate the dataset")
start = datetime.datetime.now()
loss, metric = epoch_evaluate(arguments, model, dataset.loader,
punctuation)
total_time = datetime.datetime.now() - start
logging.info("Loss: {:.4f} {}".format(loss, metric))
logging.info("{}s elapsed, {:.2f} Sents/s".format(
total_time,
len(dataset) / total_time.total_seconds()))
def parse(self, inputs):
"""
预测未切词的句子。
Args:
x: list(str) | str, 未分词的句子，类型为str或list
Returns:
outputs: list, 依存分析结果
Example:
>>> ddp = DDParser()
>>> inputs = "百度是一家高科技公司"
>>> ddp.parse(inputs)
[{'word': ['百度', '是', '一家', '高科技', '公司'], 'head': [2, 0, 5, 5, 2], 'deprel': ['SBV', 'HED', 'ATT', 'ATT', 'VOB']}]
>>> inputs = ["百度是一家高科技公司", "他送了一本书"]
>>> ddp.parse(inputs)
[{'word': ['百度', '是', '一家', '高科技', '公司'], 'head': [2, 0, 5, 5, 2], 'deprel': ['SBV', 'HED', 'ATT', 'ATT', 'VOB']},
{'word': ['他', '送', '了', '一本', '书'], 'head': [2, 0, 2, 5, 2], 'deprel': ['SBV', 'HED', 'MT', 'ATT', 'VOB']}]
>>> ddp = DDParser(prob=True, use_pos=True)
>>> inputs = "百度是一家高科技公司"
>>> ddp.parse(inputs)
[{'word': ['百度', '是', '一家', '高科技', '公司'], 'postag': ['ORG', 'v', 'm', 'n', 'n'],
'head': [2, 0, 5, 5, 2], 'deprel': ['SBV', 'HED', 'ATT', 'ATT', 'VOB'], 'prob': [1.0, 1.0, 1.0, 1.0, 1.0]}]
"""
if not self.lac:
self.lac = LAC.LAC(mode='lac' if self.use_pos else "seg")
if not inputs:
return
if isinstance(inputs, str):
inputs = [inputs]
if all([isinstance(i, str) and i for i in inputs]):
lac_results = self.lac.run(inputs)
predicts = Corpus.load_lac_results(lac_results, self.env.fields)
else:
logging.warning("please check the foramt of your inputs.")
return
dataset = TextDataset(predicts, [self.env.WORD, self.env.FEAT])
# set the data loader
dataset.loader = batchify(dataset,
self.args.batch_size,
use_multiprocess=False,
sequential_sampler=True)
pred_arcs, pred_rels, pred_probs = epoch_predict(
self.env, self.args, self.model, dataset.loader)
predicts.head = pred_arcs
predicts.deprel = pred_rels
if self.args.prob:
predicts.prob = pred_probs
outputs = predicts.get_result()
return outputs
def predict_query(env):
"""Predict one query"""
args = env.args
logging.info("Load the model")
model = load(args.model_path)
model.eval()
lac_mode = "seg" if args.feat != "pos" else "lac"
lac = LAC.LAC(mode=lac_mode)
if args.prob:
env.fields = env.fields._replace(PHEAD=Field("prob"))
while True:
query = input()
if isinstance(query, six.text_type):
pass
else:
query = query.decode("utf-8")
if not query:
logging.info("quit!")
return
if len(query) > 200:
logging.info("The length of the query should be less than 200！")
continue
start = datetime.datetime.now()
lac_results = lac.run([query])
predicts = Corpus.load_lac_results(lac_results, env.fields)
dataset = TextDataset(predicts, [env.WORD, env.FEAT])
# set the ddparser_data loader
dataset.loader = batchify(dataset,
args.batch_size,
use_multiprocess=False,
sequential_sampler=True)
pred_arcs, pred_rels, pred_probs = epoch_predict(
env, args, model, dataset.loader)
predicts.head = pred_arcs
predicts.deprel = pred_rels
if args.prob:
predicts.prob = pred_probs
predicts._print()
total_time = datetime.datetime.now() - start
logging.info("{}s elapsed, {:.2f} Sents/s, {:.2f} ms/Sents".format(
total_time,
len(dataset) / total_time.total_seconds(),
total_time.total_seconds() / len(dataset) * 1000))
def predict(env):
"""Predict"""
arguments = env.args
logging.info("Load the dataset")
if arguments.prob:
env.fields = env.fields._replace(PHEAD=Field("prob"))
predicts = Corpus.load(arguments.infer_data_path, env.fields)
dataset = TextDataset(predicts, [env.WORD, env.FEAT],
arguments.buckets) # 只需提取word和feat
# set the ddparser_data loader
dataset.loader = batchify(dataset, arguments.batch_size)
logging.info("{} sentences, {} batches".format(len(dataset),
len(dataset.loader)))
logging.info("Load the model")
model = load(arguments.model_path)
model.args = arguments
logging.info("Make predictions on the dataset")
start = datetime.datetime.now()
model.eval()
connection_predicts, deprel_predicts, predict_prob = epoch_predict(
env, arguments, model, dataset.loader)
total_time = datetime.datetime.now() - start
# restore the order of sentences in the buckets
indices = np.argsort(
np.array([i for bucket in dataset.buckets.values() for i in bucket]))
predicts.head = [connection_predicts[i] for i in indices]
predicts.deprel = [deprel_predicts[i] for i in indices]
if arguments.prob:
predicts.prob = [predict_prob[i] for i in indices]
logging.info("Save the predicted result to {}".format(
arguments.infer_result_path))
predicts.save(arguments.infer_result_path)
logging.info("{}s elapsed, {:.2f} Sents/s".format(
total_time,
len(dataset) / total_time.total_seconds()))
def evaluate(env):
"""Evaluate"""
args = env.args
puncts = dygraph.to_variable(env.puncts, zero_copy=False)
logging.info("Load the dataset")
evaluates = Corpus.load(args.test_data_path, env.fields)
dataset = TextDataset(evaluates, env.fields, args.buckets)
# set the data loader
dataset.loader = batchify(dataset, args.batch_size)
logging.info(f"{len(dataset)} sentences, "
f"{len(dataset.loader)} batches, "
f"{len(dataset.buckets)} buckets")
logging.info("Load the model")
model = load(args.model_path)
logging.info("Evaluate the dataset")
start = datetime.datetime.now()
loss, metric = epoch_evaluate(args, model, dataset.loader, puncts)
total_time = datetime.datetime.now() - start
logging.info(f"Loss: {loss:.4f} {metric}")
logging.info(f"{total_time}s elapsed, "
f"{len(dataset) / total_time.total_seconds():.2f} Sents/s")
def train(env):
"""Train"""
args = env.args
logging.info("loading data.")
train = Corpus.load(args.train_data_path, env.fields)
dev = Corpus.load(args.valid_data_path, env.fields)
test = Corpus.load(args.test_data_path, env.fields)
logging.info("init dataset.")
train = TextDataset(train, env.fields, args.buckets)
dev = TextDataset(dev, env.fields, args.buckets)
test = TextDataset(test, env.fields, args.buckets)
logging.info("set the data loaders.")
train.loader = batchify(train, args.batch_size, args.use_data_parallel,
True)
dev.loader = batchify(dev, args.batch_size)
test.loader = batchify(test, args.batch_size)
logging.info(f"{'train:':6} {len(train):5} sentences, "
f"{len(train.loader):3} batches, "
f"{len(train.buckets)} buckets")
logging.info(f"{'dev:':6} {len(dev):5} sentences, "
f"{len(dev.loader):3} batches, "
f"{len(train.buckets)} buckets")
logging.info(f"{'test:':6} {len(test):5} sentences, "
f"{len(test.loader):3} batches, "
f"{len(train.buckets)} buckets")
logging.info("Create the model")
model = Model(args, env.WORD.embed)
# init parallel strategy
if args.use_data_parallel:
strategy = dygraph.parallel.prepare_context()
model = dygraph.parallel.DataParallel(model, strategy)
if args.use_cuda:
grad_clip = fluid.clip.GradientClipByNorm(clip_norm=args.clip)
else:
grad_clip = fluid.clip.GradientClipByGlobalNorm(clip_norm=args.clip)
decay = dygraph.ExponentialDecay(learning_rate=args.lr,
decay_steps=args.decay_steps,
decay_rate=args.decay)
optimizer = fluid.optimizer.AdamOptimizer(
learning_rate=decay,
beta1=args.mu,
beta2=args.nu,
epsilon=args.epsilon,
parameter_list=model.parameters(),
grad_clip=grad_clip)
total_time = datetime.timedelta()
best_e, best_metric = 1, Metric()
puncts = dygraph.to_variable(env.puncts, zero_copy=False)
logging.info("start training.")
for epoch in range(1, args.epochs + 1):
start = datetime.datetime.now()
# train one epoch and update the parameter
logging.info(f"Epoch {epoch} / {args.epochs}:")
epoch_train(args, model, optimizer, train.loader, epoch)
if args.local_rank == 0:
loss, dev_metric = epoch_evaluate(args, model, dev.loader, puncts)
logging.info(f"{'dev:':6} Loss: {loss:.4f} {dev_metric}")
loss, test_metric = epoch_evaluate(args, model, test.loader,
puncts)
logging.info(f"{'test:':6} Loss: {loss:.4f} {test_metric}")
t = datetime.datetime.now() - start
# save the model if it is the best so far
if dev_metric > best_metric and epoch > args.patience // 10:
best_e, best_metric = epoch, dev_metric
save(args.model_path, args, model, optimizer)
logging.info(f"{t}s elapsed (saved)\n")
else:
logging.info(f"{t}s elapsed\n")
total_time += t
if epoch - best_e >= args.patience:
break
if args.local_rank == 0:
model = load(args.model_path, model)
loss, metric = epoch_evaluate(args, model, test.loader, puncts)
logging.info(
f"max score of dev is {best_metric.score:.2%} at epoch {best_e}")
logging.info(
f"the score of test at epoch {best_e} is {metric.score:.2%}")
logging.info(f"average time of each epoch is {total_time / epoch}s")
logging.info(f"{total_time}s elapsed")
def train(env):
"""Train"""
args = env.args
logging.info("loading data.")
train = Corpus.load(args.train_data_path, env.fields)
dev = Corpus.load(args.valid_data_path, env.fields)
test = Corpus.load(args.test_data_path, env.fields)
logging.info("init dataset.")
train = TextDataset(train, env.fields, args.buckets)
dev = TextDataset(dev, env.fields, args.buckets)
test = TextDataset(test, env.fields, args.buckets)
logging.info("set the data loaders.")
train.loader = batchify(train, args.batch_size, args.use_data_parallel, True)
dev.loader = batchify(dev, args.batch_size)
test.loader = batchify(test, args.batch_size)
logging.info("{:6} {:5} sentences, ".format('train:', len(train)) + "{:3} batches, ".format(len(train.loader)) +
"{} buckets".format(len(train.buckets)))
logging.info("{:6} {:5} sentences, ".format('dev:', len(dev)) + "{:3} batches, ".format(len(dev.loader)) +
"{} buckets".format(len(dev.buckets)))
logging.info("{:6} {:5} sentences, ".format('test:', len(test)) + "{:3} batches, ".format(len(test.loader)) +
"{} buckets".format(len(test.buckets)))
logging.info("Create the model")
model = Model(args)
# init parallel strategy
if args.use_data_parallel:
dist.init_parallel_env()
model = paddle.DataParallel(model)
if args.encoding_model.startswith(
"ernie") and args.encoding_model != "ernie-lstm" or args.encoding_model == 'transformer':
args['lr'] = args.ernie_lr
else:
args['lr'] = args.lstm_lr
if args.encoding_model.startswith("ernie") and args.encoding_model != "ernie-lstm":
max_steps = 100 * len(train.loader)
decay = LinearDecay(args.lr, int(args.warmup_proportion * max_steps), max_steps)
clip = args.ernie_clip
else:
decay = dygraph.ExponentialDecay(learning_rate=args.lr, decay_steps=args.decay_steps, decay_rate=args.decay)
clip = args.clip
if args.use_cuda:
grad_clip = fluid.clip.GradientClipByNorm(clip_norm=clip)
else:
grad_clip = fluid.clip.GradientClipByGlobalNorm(clip_norm=clip)
if args.encoding_model.startswith("ernie") and args.encoding_model != "ernie-lstm":
optimizer = AdamW(
learning_rate=decay,
parameter_list=model.parameters(),
weight_decay=args.weight_decay,
grad_clip=grad_clip,
)
else:
optimizer = fluid.optimizer.AdamOptimizer(
learning_rate=decay,
beta1=args.mu,
beta2=args.nu,
epsilon=args.epsilon,
parameter_list=model.parameters(),
grad_clip=grad_clip,
)
total_time = datetime.timedelta()
best_e, best_metric = 1, Metric()
puncts = dygraph.to_variable(env.puncts, zero_copy=False)
logging.info("start training.")
for epoch in range(1, args.epochs + 1):
start = datetime.datetime.now()
# train one epoch and update the parameter
logging.info("Epoch {} / {}:".format(epoch, args.epochs))
epoch_train(args, model, optimizer, train.loader, epoch)
if args.local_rank == 0:
loss, dev_metric = epoch_evaluate(args, model, dev.loader, puncts)
logging.info("{:6} Loss: {:.4f} {}".format('dev:', loss, dev_metric))
loss, test_metric = epoch_evaluate(args, model, test.loader, puncts)
logging.info("{:6} Loss: {:.4f} {}".format('test:', loss, test_metric))
t = datetime.datetime.now() - start
# save the model if it is the best so far
if dev_metric > best_metric and epoch > args.patience // 10:
best_e, best_metric = epoch, dev_metric
save(args.model_path, args, model, optimizer)
logging.info("{}s elapsed (saved)\n".format(t))
else:
logging.info("{}s elapsed\n".format(t))
total_time += t
if epoch - best_e >= args.patience:
break
if args.local_rank == 0:
model = load(args.model_path, model)
loss, metric = epoch_evaluate(args, model, test.loader, puncts)
logging.info("max score of dev is {:.2%} at epoch {}".format(best_metric.score, best_e))
logging.info("the score of test at epoch {} is {:.2%}".format(best_e, metric.score))
logging.info("average time of each epoch is {}s".format(total_time / epoch))
logging.info("{}s elapsed".format(total_time))
def parse(self, inputs):
"""
预测未切词的句子。
Args:
x: list(str) | str, 未分词的句子，类型为str或list
Returns:
outputs: list, 依存分析结果
Example:
>>> ddp = DDParser()
>>> inputs = "百度是一家高科技公司"
>>> ddp.parse(inputs)
[{'word': ['百度', '是', '一家', '高科技', '公司'], 'head': [2, 0, 5, 5, 2], 'deprel': ['SBV', 'HED', 'ATT', 'ATT', 'VOB']}]
>>> inputs = ["百度是一家高科技公司", "他送了一本书"]
>>> ddp.parse(inputs)
[{'word': ['百度', '是', '一家', '高科技', '公司'], 'head': [2, 0, 5, 5, 2], 'deprel': ['SBV', 'HED', 'ATT', 'ATT', 'VOB']},
{'word': ['他', '送', '了', '一本', '书'], 'head': [2, 0, 2, 5, 2], 'deprel': ['SBV', 'HED', 'MT', 'ATT', 'VOB']}]
>>> ddp = DDParser(prob=True, use_pos=True)
>>> inputs = "百度是一家高科技公司"
>>> ddp.parse(inputs)
[{'word': ['百度', '是', '一家', '高科技', '公司'], 'postag': ['ORG', 'v', 'm', 'n', 'n'],
'head': [2, 0, 5, 5, 2], 'deprel': ['SBV', 'HED', 'ATT', 'ATT', 'VOB'], 'prob': [1.0, 1.0, 1.0, 1.0, 1.0]}]
"""
if not self.lac:
self.lac = LAC.LAC(mode="lac" if self.use_pos else "seg", use_cuda=self.args.use_cuda)
if not inputs:
return
if isinstance(inputs, six.string_types):
inputs = [inputs]
if all([isinstance(i, six.string_types) and i for i in inputs]):
lac_results = []
position = 0
try:
inputs = [query if isinstance(query, six.text_type) else query.decode("utf-8") for query in inputs]
except UnicodeDecodeError:
logging.warning("encoding only supports UTF-8!")
return
while position < len(inputs):
lac_results += self.lac.run(inputs[position:position + self.args.batch_size])
position += self.args.batch_size
predicts = Corpus.load_lac_results(lac_results, self.env.fields)
else:
logging.warning("please check the foramt of your inputs.")
return
dataset = TextDataset(predicts, [self.env.WORD, self.env.FEAT], self.args.buckets)
# set the data loader
dataset.loader = batchify(
dataset,
self.args.batch_size,
use_multiprocess=False,
sequential_sampler=True if not self.args.buckets else False,
)
pred_arcs, pred_rels, pred_probs = epoch_predict(self.env, self.args, self.model, dataset.loader)
if self.args.buckets:
indices = np.argsort(np.array([i for bucket in dataset.buckets.values() for i in bucket]))
else:
indices = range(len(pred_arcs))
predicts.head = [pred_arcs[i] for i in indices]
predicts.deprel = [pred_rels[i] for i in indices]
if self.args.prob:
predicts.prob = [pred_probs[i] for i in indices]
outputs = predicts.get_result()
return outputs
