def input_fn():
vocab = MockVocab()
input_pipeline = LmInputDataPipeline(vocab, batch_size=None)
input_dataset = tf.data.Dataset.from_generator(input_generator,
output_types=tf.string)
corpus = input_pipeline.load_data(input_dataset).repeat()
corpus = input_pipeline.padded_batch(corpus, 3)
return corpus
def model_fn(features, labels, mode, params):
vocab_copy = MockVocab()
input_pipeline_copy = LmInputDataPipeline(vocab_copy)
return get_autoregressor_model_fn(
vocab_size,
input_pipeline_copy.get_id_to_embedding_mapping())(features,
labels, mode,
params)
def test_load_no_batching():
def input_generator():
yield ["a", "b", "c"]
yield ["c", "b"]
expected_output = [
(
{
"inputs":
np.array([[0.0, 1.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 1.5, 2.5, 3.5],
[0.0, 0.0, 0.0, 4.5, 5.5, 6.5],
[0.0, 0.0, 0.0, 7.5, 8.5, 9.5]],
dtype=np.float32),
"length":
np.array(4, dtype=np.int32),
},
{
"targets": np.array([4, 5, 6, 2], dtype=np.int32)
},
),
(
{
"inputs":
np.array([
[0.0, 1.0, 0.0, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.0, 7.5, 8.5, 9.5],
[0.0, 0.0, 0.0, 4.5, 5.5, 6.5],
],
dtype=np.float32),
"length":
np.array(3, dtype=np.int32),
},
{
"targets": np.array([6, 5, 2], dtype=np.int32)
},
),
]
input_dataset = tf.data.Dataset.from_generator(input_generator,
output_types=tf.string)
vocab = MockVocab()
input_pipeline = LmInputDataPipeline(vocab, batch_size=None)
input_data = input_pipeline.load_data(input_dataset)
it = input_data.make_initializable_iterator()
example = it.get_next()
with tf.Session() as sess:
sess.run(tf.tables_initializer())
sess.run(it.initializer)
#sess.run(tf.global_variables_initializer())
for _, expected in enumerate(expected_output):
actual = sess.run(example)
assert actual[0]["inputs"] == approx(expected[0]["inputs"])
assert actual[0]["length"] == approx(expected[0]["length"])
assert actual[1]["targets"] == approx(expected[1]["targets"])
def create_input():
input_pipe = LmInputDataPipeline(glove, 5)
embedding_size = LmInputDataPipeline(
glove, None)._vocab_generalized.vector_size()
train_data = read_dataset_from_dir(data_dir, DatasetType.TRAIN,
embedding_size)
train_data = train_data.repeat().shuffle(1000, seed=0)
train_data = input_pipe.padded_batch(train_data, BATCH_SIZE)
return train_data
def create_input():
input_pipe = LmInputDataPipeline(glove, 5)
embedding_size = LmInputDataPipeline(
glove, None)._vocab_generalized.vector_size()
train_data = read_dataset_from_dir(data_dir, subset, embedding_size)
if take_first_n is not None:
train_data = train_data.take(take_first_n)
train_data = input_pipe.padded_batch(train_data, BATCH_SIZE)
return train_data
def disambiguation_preprocessing(inputs):
glove = Glove300()
input_pipe = LmInputDataPipeline(glove)
t_words = tf.placeholder(dtype=tf.string)
t_vocab_ids = glove.word_to_id_op()(t_words)
t_genralized_ids = input_pipe._vocab_generalized.vocab_id_to_generalized_id(
)(t_vocab_ids)
meanings_all = set()
for sentence in inputs:
for word in sentence:
for meaning in word.split("^"):
meanings_all.add(meaning)
meanings_all = list(meanings_all)
with tf.Session() as sess:
sess.run(tf.tables_initializer())
sess.run(tf.global_variables_initializer())
glove.after_session_created_hook_fn(sess)
ids_all = sess.run(t_genralized_ids, feed_dict={t_words: meanings_all})
mapping = {meaning: id for meaning, id in zip(meanings_all, ids_all)}
sentences_as_ids = []
for sentence in inputs:
sentence_as_ids = []
for word in sentence:
allowables = []
for meaning in word.split("^"):
allowables.append(mapping[meaning])
sentence_as_ids.append(allowables)
sentences_as_ids.append(sentence_as_ids)
return sentences_as_ids
def model_function(features, labels, mode, params):
input_pipe = LmInputDataPipeline(glove)
vocab_size = glove.vocab_size()
embedding_size = input_pipe._vocab_generalized.vector_size()
id_to_embeding_fn = input_pipe.get_id_to_embedding_mapping(
) if mode == tf.estimator.ModeKeys.PREDICT else lambda x: tf.zeros(
(tf.shape(x), embedding_size), tf.float32)
#with tf.device(device_assignment_function) if hparams.size_based_device_assignment else without:
with tf.device("/device:CPU:0"):
concrete_model_fn = get_autoregressor_model_fn(
vocab_size,
id_to_embeding_fn,
time_major_optimization=True,
predict_as_pure_lm=False,
mask_allowables=input_sentence,
hparams=hparams)
estimator_spec = concrete_model_fn(features, labels, mode, params)
training_hooks = []
to_restore = tf.contrib.framework.get_variables_to_restore()
predictions = estimator_spec.predictions
if mode == tf.estimator.ModeKeys.PREDICT:
training_hooks.append(InitializeVocabularyHook(glove))
predicted_ids = tf.cast(predictions["paths"], dtype=tf.int64)
words_shape = tf.shape(predicted_ids)
to_vocab_id = input_pipe._vocab_generalized.generalized_id_to_vocab_id(
)
to_word = glove.id_to_word_op()
predicted_ids = tf.reshape(predicted_ids, shape=[-1])
predicted_words = to_word(to_vocab_id(predicted_ids))
predicted_words = tf.reshape(predicted_words, shape=words_shape)
predictions["predicted_words"] = predicted_words
if hparams.profiler:
training_hooks.append(
tf.train.ProfilerHook(output_dir=model_dir,
save_secs=30,
show_memory=True))
training_hooks.append(FullLogHook())
estimator_spec_with_hooks = tf.estimator.EstimatorSpec(
mode=estimator_spec.mode,
loss=estimator_spec.loss,
train_op=estimator_spec.train_op,
eval_metric_ops=estimator_spec.eval_metric_ops,
predictions=estimator_spec.predictions,
training_hooks=training_hooks)
return estimator_spec_with_hooks
def model_function(features, labels, mode, params):
input_pipe = LmInputDataPipeline(glove)
vocab_size = glove.vocab_size()
id_to_embeding_fn = input_pipe.get_id_to_embedding_mapping()
with tf.device(device_assignment_function):
concrete_model_fn = get_autoregressor_model_fn(
vocab_size, id_to_embeding_fn)
estimator_spec = concrete_model_fn(features, labels, mode, params)
training_hooks = [InitializeVocabularyHook(glove)]
estimator_spec_with_hooks = tf.estimator.EstimatorSpec(
mode=estimator_spec.mode,
loss=estimator_spec.loss,
train_op=estimator_spec.train_op,
eval_metric_ops=estimator_spec.eval_metric_ops,
predictions=estimator_spec.predictions,
training_hooks=training_hooks)
return estimator_spec_with_hooks
def model_function(features, labels, mode, params):
input_pipe = LmInputDataPipeline(glove)
vocab_size = glove.vocab_size()
embedding_size = input_pipe._vocab_generalized.vector_size()
id_to_embeding_fn = input_pipe.get_id_to_embedding_mapping(
) if mode == tf.estimator.ModeKeys.PREDICT else lambda x: tf.zeros(
(tf.shape(x), embedding_size), tf.float32)
with tf.device(device_assignment_function
) if hparams.size_based_device_assignment else without:
concrete_model_fn = get_autoregressor_model_fn(
vocab_size,
id_to_embeding_fn,
time_major_optimization=True,
hparams=hparams)
estimator_spec = concrete_model_fn(features, labels, mode, params)
if hparams.write_target_text_to_summary:
words_shape = tf.shape(labels["targets"])
to_vocab_id = input_pipe._vocab_generalized.generalized_id_to_vocab_id(
)
to_word = glove.id_to_word_op()
flat_targets = tf.reshape(labels["targets"], shape=[-1])
flat_targets_words = to_word(to_vocab_id(flat_targets))
targets_words = tf.reshape(flat_targets_words, shape=words_shape)
tf.summary.text("targets_words", targets_words)
training_hooks = []
if mode == tf.estimator.ModeKeys.PREDICT:
training_hooks.append(InitializeVocabularyHook(glove))
if hparams.profiler:
training_hooks.append(
tf.train.ProfilerHook(output_dir=model_dir,
save_secs=30,
show_memory=True))
training_hooks.append(FullLogHook())
estimator_spec_with_hooks = tf.estimator.EstimatorSpec(
mode=estimator_spec.mode,
loss=estimator_spec.loss,
train_op=estimator_spec.train_op,
eval_metric_ops=estimator_spec.eval_metric_ops,
predictions=estimator_spec.predictions,
training_hooks=training_hooks)
return estimator_spec_with_hooks
def data_gen():
yield ({
"inputs":
np.array([[
LmInputDataPipeline(
glove, None)._vocab_generalized.get_special_unit_id(
SpecialUnit.START_OF_SEQUENCE)
]],
dtype=np.int32),
"length":
len(input_sentence)
}, np.array([0]))
def input_fn():
vocab = MockVocab()
input_pipeline = LmInputDataPipeline(vocab, batch_size=3)
input_dataset = tf.data.Dataset.from_generator(input_generator,
output_types=tf.string)
return input_pipeline.load_data(input_dataset).repeat()
def create_input():
simple_examples = SimpleExamplesCorpus()
train_data = simple_examples.get_tokens_dataset(
DatasetType.TRAIN).repeat().shuffle(1000, seed=0)
input_pipe = LmInputDataPipeline(glove, 8)
return input_pipe.load_data(train_data)
def create_input():
simple_examples = SimpleExamplesCorpus()
train_data = simple_examples.get_tokens_dataset(DatasetType.TRAIN)
input_pipe = LmInputDataPipeline(glove, None)
return input_pipe.load_data(train_data)
def prepare_training_dataset(ouput_path):
"""This will transform input corpus into language model training examples with embeddings vectors as inputs and save it to disk.
Expect HUGE dataset in terms of occupied space."""
if TEST_SERIALIZATION:
test_examples = []
ouput_path = Path(ouput_path)
glove = Glove300()
def create_input():
simple_examples = SimpleExamplesCorpus()
train_data = simple_examples.get_tokens_dataset(DatasetType.TRAIN)
input_pipe = LmInputDataPipeline(glove, None)
return input_pipe.load_data(train_data)
dataset = create_input()
def make_tf_record_example(features, labels) -> tf.train.SequenceExample:
feature_inputs = tf.train.Feature(float_list=tf.train.FloatList(
value=features["inputs"].reshape(-1)))
feature_length = tf.train.Feature(int64_list=tf.train.Int64List(
value=[features["length"]]))
feature_targets = tf.train.Feature(int64_list=tf.train.Int64List(
value=labels["targets"]))
feature_dict = {
"inputs": feature_inputs,
"length": feature_length,
"targets": feature_targets
}
features = tf.train.Features(feature=feature_dict)
example = tf.train.Example(features=features)
return example
def max_length_condition(max_length):
def check_length(features, labels):
return tf.less_equal(features["length"], max_length)
return check_length
dataset = dataset.filter(max_length_condition(40))
it = dataset.make_initializable_iterator()
next = it.get_next()
EXAMPLES_PER_FILE = 2000
with tf.Session() as sess:
sess.run(tf.tables_initializer())
glove.initialize_embeddings_in_graph(tf.get_default_graph(), sess)
sess.run(it.initializer)
for i in count(1):
dataset_filename = str(ouput_path /
"train.{:0=10}.tfrecords".format(i))
writer = tf.python_io.TFRecordWriter(dataset_filename)
try:
for _ in range(EXAMPLES_PER_FILE):
features, labels = sess.run(next)
if TEST_SERIALIZATION:
test_examples.append((features, labels))
example = make_tf_record_example(features, labels)
writer.write(example.SerializeToString())
except tf.errors.OutOfRangeError:
break
writer.close()
if TEST_SERIALIZATION:
embedding_size = LmInputDataPipeline(
glove, None)._vocab_generalized.vector_size()
records_dataset = read_dataset_from_files(
[dataset_filename], embedding_size=embedding_size)
it = records_dataset.make_initializable_iterator()
next_record = it.get_next()
with tf.Session() as sess:
sess.run(it.initializer)
for expected_features, expected_labels in test_examples:
actual_features, actual_labels = sess.run(next_record)
assert (actual_features["inputs"] ==
expected_features["inputs"]).all()
assert (actual_features["length"] ==
expected_features["length"]).all()
assert actual_labels["targets"] == approx(
expected_labels["targets"])
