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Merge pull request #2178 from lcy-seso/update_srl_demo

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update the SRL demo.
refactor_docs
Cao Ying 8 years ago committed by GitHub
parent 39b911237d 4c73240d51
commit 83c24ff2d4
1 changed files with 137 additions and 50 deletions
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185
demo/semantic_role_labeling/api_train_v2.py
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@ -1,26 +1,33 @@
import sys
import math
import numpy as np
import paddle.v2 as paddle
import gzip
import logging
import paddle.v2.dataset.conll05 as conll05
import paddle.v2.evaluator as evaluator
import paddle.v2 as paddle
logger = logging.getLogger('paddle')
def db_lstm():
word_dict, verb_dict, label_dict = conll05.get_dict()
word_dict_len = len(word_dict)
label_dict_len = len(label_dict)
pred_len = len(verb_dict)
word_dict, verb_dict, label_dict = conll05.get_dict()
word_dict_len = len(word_dict)
label_dict_len = len(label_dict)
pred_len = len(verb_dict)
mark_dict_len = 2
word_dim = 32
mark_dim = 5
hidden_dim = 512
depth = 8
mark_dict_len = 2
word_dim = 32
mark_dim = 5
hidden_dim = 512
depth = 8
default_std = 1 / math.sqrt(hidden_dim) / 3.0
mix_hidden_lr = 1e-3
#8 features
def d_type(size):
def d_type(size):
return paddle.data_type.integer_value_sequence(size)
def db_lstm():
#8 features
word = paddle.layer.data(name='word_data', type=d_type(word_dict_len))
predicate = paddle.layer.data(name='verb_data', type=d_type(pred_len))
@ -31,11 +38,7 @@ def db_lstm():
ctx_p2 = paddle.layer.data(name='ctx_p2_data', type=d_type(word_dict_len))
mark = paddle.layer.data(name='mark_data', type=d_type(mark_dict_len))
target = paddle.layer.data(name='target', type=d_type(label_dict_len))
default_std = 1 / math.sqrt(hidden_dim) / 3.0
emb_para = paddle.attr.Param(name='emb', initial_std=0., learning_rate=0.)
emb_para = paddle.attr.Param(name='emb', initial_std=0., is_static=True)
std_0 = paddle.attr.Param(initial_std=0.)
std_default = paddle.attr.Param(initial_std=default_std)
@ -63,7 +66,6 @@ def db_lstm():
input=emb, param_attr=std_default) for emb in emb_layers
])
mix_hidden_lr = 1e-3
lstm_para_attr = paddle.attr.Param(initial_std=0.0, learning_rate=1.0)
hidden_para_attr = paddle.attr.Param(
initial_std=default_std, learning_rate=mix_hidden_lr)
@ -111,6 +113,21 @@ def db_lstm():
input=input_tmp[1], param_attr=lstm_para_attr)
], )
return feature_out
def load_parameter(file_name, h, w):
with open(file_name, 'rb') as f:
f.read(16) # skip header.
return np.fromfile(f, dtype=np.float32).reshape(h, w)
def train():
paddle.init(use_gpu=False, trainer_count=1)
# define network topology
feature_out = db_lstm()
target = paddle.layer.data(name='target', type=d_type(label_dict_len))
crf_cost = paddle.layer.crf(size=label_dict_len,
input=feature_out,
label=target,
@ -120,29 +137,15 @@ def db_lstm():
learning_rate=mix_hidden_lr))
crf_dec = paddle.layer.crf_decoding(
name='crf_dec_l',
size=label_dict_len,
input=feature_out,
label=target,
param_attr=paddle.attr.Param(name='crfw'))
return crf_cost, crf_dec
def load_parameter(file_name, h, w):
with open(file_name, 'rb') as f:
f.read(16) # skip header.
return np.fromfile(f, dtype=np.float32).reshape(h, w)
def main():
paddle.init(use_gpu=False, trainer_count=1)
# define network topology
crf_cost, crf_dec = db_lstm()
evaluator.sum(input=crf_dec)
# create parameters
parameters = paddle.parameters.create([crf_cost, crf_dec])
parameters = paddle.parameters.create(crf_cost)
parameters.set('emb', load_parameter(conll05.get_embedding(), 44068, 32))
# create optimizer
optimizer = paddle.optimizer.Momentum(
@ -152,18 +155,12 @@ def main():
model_average=paddle.optimizer.ModelAverage(
average_window=0.5, max_average_window=10000), )
def event_handler(event):
if isinstance(event, paddle.event.EndIteration):
if event.batch_id % 100 == 0:
print "Pass %d, Batch %d, Cost %f, %s" % (
event.pass_id, event.batch_id, event.cost, event.metrics)
trainer = paddle.trainer.SGD(cost=crf_cost,
parameters=parameters,
update_equation=optimizer)
parameters.set('emb', load_parameter(conll05.get_embedding(), 44068, 32))
update_equation=optimizer,
extra_layers=crf_dec)
trn_reader = paddle.batch(
reader = paddle.batch(
paddle.reader.shuffle(
conll05.test(), buf_size=8192), batch_size=10)
@ -179,12 +176,102 @@ def main():
'target': 8
}
def event_handler(event):
if isinstance(event, paddle.event.EndIteration):
if event.batch_id % 100 == 0:
logger.info("Pass %d, Batch %d, Cost %f, %s" % (
event.pass_id, event.batch_id, event.cost, event.metrics))
if event.batch_id and event.batch_id % 1000 == 0:
result = trainer.test(reader=reader, feeding=feeding)
logger.info("\nTest with Pass %d, Batch %d, %s" %
(event.pass_id, event.batch_id, result.metrics))
if isinstance(event, paddle.event.EndPass):
# save parameters
with gzip.open('params_pass_%d.tar.gz' % event.pass_id, 'w') as f:
parameters.to_tar(f)
result = trainer.test(reader=reader, feeding=feeding)
logger.info("\nTest with Pass %d, %s" %
(event.pass_id, result.metrics))
trainer.train(
reader=trn_reader,
reader=reader,
event_handler=event_handler,
num_passes=10000,
num_passes=10,
feeding=feeding)
def infer_a_batch(inferer, test_data, word_dict, pred_dict, label_dict):
probs = inferer.infer(input=test_data, field='id')
assert len(probs) == sum(len(x[0]) for x in test_data)
for idx, test_sample in enumerate(test_data):
start_id = 0
pred_str = "%s\t" % (pred_dict[test_sample[6][0]])
for w, tag in zip(test_sample[0],
probs[start_id:start_id + len(test_sample[0])]):
pred_str += "%s[%s] " % (word_dict[w], label_dict[tag])
print(pred_str.strip())
start_id += len(test_sample[0])
def infer():
label_dict_reverse = dict((value, key)
for key, value in label_dict.iteritems())
word_dict_reverse = dict((value, key)
for key, value in word_dict.iteritems())
pred_dict_reverse = dict((value, key)
for key, value in verb_dict.iteritems())
test_creator = paddle.dataset.conll05.test()
paddle.init(use_gpu=False, trainer_count=1)
# define network topology
feature_out = db_lstm()
predict = paddle.layer.crf_decoding(
size=label_dict_len,
input=feature_out,
param_attr=paddle.attr.Param(name='crfw'))
test_pass = 0
with gzip.open('params_pass_%d.tar.gz' % (test_pass)) as f:
parameters = paddle.parameters.Parameters.from_tar(f)
inferer = paddle.inference.Inference(
output_layer=predict, parameters=parameters)
# prepare test data
test_data = []
test_batch_size = 50
for idx, item in enumerate(test_creator()):
test_data.append(item[0:8])
if idx and (not idx % test_batch_size):
infer_a_batch(
inferer,
test_data,
word_dict_reverse,
pred_dict_reverse,
label_dict_reverse, )
test_data = []
infer_a_batch(
inferer,
test_data,
word_dict_reverse,
pred_dict_reverse,
label_dict_reverse, )
test_data = []
def main(is_inferring=False):
if is_inferring:
infer()
else:
train()
if __name__ == '__main__':
main()
main(is_inferring=False)

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