def tune(n_hidden_in, dropout_in):
print("Tuning with Hidden Size = {}, Dropout = {}".format(
n_hidden_in, dropout_in))
m = Model(n_hidden=n_hidden_in, dropout=dropout_in)
# Set up training parameters
data = get_mnist_dataset()
batch_size = 32
epochs = 15
examples = 60000
train_data = data['train'].shuffle(examples,
reshuffle_each_iteration=False)
loss_logs = []
# Main training loop - iterate through data and call train_step
for i in range(epochs):
num_correct = 0
for j, ex in enumerate(
train_data.batch(batch_size).take(int(examples / batch_size))):
x, y = process_batch(ex)
loss, accuracy = m.train_step(x, y)
num_correct += accuracy * batch_size
loss_logs.append(loss)
print("Epoch {}, {}/{}".format(i, (j + 1) * batch_size, examples) +
" " * 10 + "Loss: {}, Accuracy {}".format(
loss, num_correct / (batch_size * (j + 1))),
end='\r',
flush=True)
# Save the model after every epoch
# m.save("epoch-{}.pkl".format(i))
print() # Print empty newline
# Evaluate the model on the test set
results = []
for ex in data['test'].take(1000):
x, _ = process_example(ex)
true = ex['label']
pred = m.predict_class(x)
results.append(1 if true == pred else 0)
# Low pass the loss logs to smoothen the graph
loss_logs = np.convolve(np.array(loss_logs),
np.ones((12, )) / 12,
mode='valid')
plt.plot(loss_logs)
plt.savefig("figure-hidden{}-dropout{}-accuracy{}.png".format(
n_hidden_in, dropout_in,
sum(results) / len(results)),
dpi=400)
plt.clf()
def main(_):
tf.logging.set_verbosity(tf.logging.INFO)
layer_indexes = [int(x) for x in FLAGS.layers.split(",")]
bert_config = modeling.BertConfig.from_json_file(FLAGS.bert_config_file)
tokenizer = tokenization.FullTokenizer(vocab_file=FLAGS.vocab_file,
do_lower_case=FLAGS.do_lower_case)
is_per_host = tf.contrib.tpu.InputPipelineConfig.PER_HOST_V2
run_config = tf.contrib.tpu.RunConfig(
master=FLAGS.master,
tpu_config=tf.contrib.tpu.TPUConfig(
num_shards=FLAGS.num_tpu_cores,
per_host_input_for_training=is_per_host))
json_examples = []
for file in FLAGS.input_file.split(';'):
with open(file) as f:
json_examples.extend(
(json.loads(jsonline) for jsonline in f.readlines()))
orig_examples = []
bert_examples = []
for i, json_e in enumerate(json_examples):
e = process_example(json_e, i)
orig_examples.append(e)
bert_examples.append(e.bertify(tokenizer))
model_fn = model_fn_builder(
bert_config=bert_config,
init_checkpoint=FLAGS.init_checkpoint,
layer_indexes=layer_indexes,
use_tpu=FLAGS.use_tpu,
use_one_hot_embeddings=FLAGS.use_one_hot_embeddings,
)
# If TPU is not available, this will fall back to normal Estimator on CPU
# or GPU.
estimator = tf.contrib.tpu.TPUEstimator(
use_tpu=FLAGS.use_tpu,
model_fn=model_fn,
config=run_config,
predict_batch_size=FLAGS.batch_size)
input_fn = input_fn_builder(examples=bert_examples,
window_size=FLAGS.window_size,
stride=FLAGS.stride,
tokenizer=tokenizer)
writer = h5py.File(FLAGS.output_file, 'w')
with tqdm(total=sum(len(e.tokens) for e in orig_examples)) as t:
for result in estimator.predict(input_fn, yield_single_examples=True):
document_index = int(result["unique_ids"])
bert_example = bert_examples[document_index]
orig_example = orig_examples[document_index]
file_key = bert_example.doc_key.replace('/', ':')
t.update(n=(result['extract_indices'] >= 0).sum())
for output_index, bert_token_index in enumerate(
result['extract_indices']):
if bert_token_index < 0:
continue
token_index = bert_example.bert_to_orig_map[bert_token_index]
sentence_index, token_index = orig_example.unravel_token_index(
token_index)
dataset_key = "{}/{}".format(file_key, sentence_index)
if dataset_key not in writer:
writer.create_dataset(
dataset_key,
(len(orig_example.sentence_tokens[sentence_index]),
bert_config.hidden_size, len(layer_indexes)),
dtype=np.float32)
dset = writer[dataset_key]
for j, layer_index in enumerate(layer_indexes):
layer_output = result["layer_output_%d" % j]
dset[token_index, :, j] = layer_output[output_index]
writer.close()
num_correct += accuracy * batch_size
loss_logs.append(loss)
print("Epoch {}, {}/{}".format(i, (j + 1) * batch_size, examples) +
" " * 10 + "Loss: {}, Accuracy {}".format(
loss, num_correct / (batch_size * (j + 1))),
end='\r',
flush=True)
# Save the model after every epoch
m.save("epoch-{}.pkl".format(i))
print() # Print empty newline
# Evaluate the model on the test set
results = []
for ex in data['test'].take(1000):
x, _ = process_example(ex)
true = ex['label']
pred = m.predict_class(x)
results.append(1 if true == pred else 0)
print("Final accuracy on test set: {}".format(sum(results) / len(results)))
# Display a few images with predictions because it's fun
print("\n" * 10)
for ex in data['test'].shuffle(100).take(10):
x, _ = process_example(ex)
pred = m.predict_class(x)
print("Predicted: {}".format(pred))
X = x.reshape((28, 28))
plt.gray()
plt.imshow(X)
import sentencepiece as spm
import json
import os
from data import process_example
input_file = ''
s = spm.SentencePieceProcessor()
s.Load('./xlnet_cased_L-12_H-768_A-12/spiece.model')
# Retrieve size
print(s.get_piece_size())
print(s.encode('this is a test'))
json_examples = []
for x in ['test', 'train', 'dev']:
with open(os.path.join(input_file, x + '.english.jsonlines')) as f:
json_examples.extend(
(json.loads(jsonline) for jsonline in f.readlines()))
orig_examples = []
bert_examples = []
for i, json_e in enumerate(json_examples):
e = process_example(json_e, i, should_filter_embedded_mentions=True)
orig_examples.append(e)
print(s.encode(' '.join(e.tokens)))
# bert_examples.append(e.bertify(tokenizer))
# for i in orig_examples: print(i.tokens)
def main(_):
tf.logging.set_verbosity(tf.logging.INFO)
tokenizer = tokenization.FullTokenizer(vocab_file=FLAGS.vocab_file,
do_lower_case=False)
json_examples = []
for x in ['test', 'train', 'dev']:
# for x in ['test']:
with open(os.path.join(FLAGS.input_file,
x + '.english.jsonlines')) as f:
json_examples.extend(
(json.loads(jsonline) for jsonline in f.readlines()))
orig_examples = []
bert_examples = []
for i, json_e in enumerate(json_examples):
e = process_example(json_e, i, should_filter_embedded_mentions=True)
orig_examples.append(e)
bert_examples.append(e.bertify(tokenizer))
writer = h5py.File(FLAGS.output_file, 'w')
for data in tqdm(convert_examples_to_features(bert_examples, orig_examples,
FLAGS.window_size,
FLAGS.stride, tokenizer),
total=len(json_examples)):
document_index = int(data["doc_index"][0])
bert_example = bert_examples[document_index]
dataset_key = bert_example.doc_key.replace('/', ':')
sentences = []
for sentence_indices in data['extract_sentences']:
cur_sentence = []
for i in sentence_indices:
tokens_flattened = sum([list(ts) for ts in data['tokens']], [])
if i > 0:
cur_sentence.append(tokens_flattened[i - 1])
sentences.append(cur_sentence)
assert [len(s) for s in sentences] == [
len(s) for s in orig_examples[document_index].sentence_tokens
]
sentences_flattened = sum(sentences, [])
expected = [
t for i, t in enumerate(bert_example.tokens)
if bert_example.bert_to_orig_map[i] >= 0
]
assert sentences_flattened == expected
writer.create_dataset('{}/input_ids'.format(dataset_key),
data=data['input_ids'])
writer.create_dataset('{}/input_mask'.format(dataset_key),
data=data['input_mask'])
writer.create_dataset('{}/segment_ids'.format(dataset_key),
data=data['segment_ids'])
writer.create_dataset('{}/extract_mask'.format(dataset_key),
data=data['extract_mask'])
writer.create_dataset('{}/extract_sentences'.format(dataset_key),
data=data['extract_sentences'])
# for i, s in enumerate(data['tokens']):
# tokens_dset = writer.create_dataset('{}/tokens/{}'.format(dataset_key, i),
# (len(s),),
# dtype=h5py.special_dtype(vlen=unicode))
# for j, w in enumerate(s):
# tokens_dset[j] = w
writer.close()
