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train | peak_signal_to_noise_ratio | Image quality metric based on maximal signal power vs. power of the noise.
Args:
true: the ground truth image.
pred: the predicted image.
Returns:
peak signal to noise ratio (PSNR) | tensor2tensor/models/video/epva.py | def peak_signal_to_noise_ratio(true, pred):
"""Image quality metric based on maximal signal power vs. power of the noise.
Args:
true: the ground truth image.
pred: the predicted image.
Returns:
peak signal to noise ratio (PSNR)
"""
return 10.0 * tf.log(1.0 / mean_squared_error(true, pred)) / tf.l... | def peak_signal_to_noise_ratio(true, pred):
"""Image quality metric based on maximal signal power vs. power of the noise.
Args:
true: the ground truth image.
pred: the predicted image.
Returns:
peak signal to noise ratio (PSNR)
"""
return 10.0 * tf.log(1.0 / mean_squared_error(true, pred)) / tf.l... | [
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train | mean_squared_error | L2 distance between tensors true and pred.
Args:
true: the ground truth image.
pred: the predicted image.
Returns:
mean squared error between ground truth and predicted image. | tensor2tensor/models/video/epva.py | def mean_squared_error(true, pred):
"""L2 distance between tensors true and pred.
Args:
true: the ground truth image.
pred: the predicted image.
Returns:
mean squared error between ground truth and predicted image.
"""
result = tf.reduce_sum(
tf.squared_difference(true, pred)) / tf.to_float... | def mean_squared_error(true, pred):
"""L2 distance between tensors true and pred.
Args:
true: the ground truth image.
pred: the predicted image.
Returns:
mean squared error between ground truth and predicted image.
"""
result = tf.reduce_sum(
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train | l1_error | L1 distance between tensors true and pred. | tensor2tensor/models/video/epva.py | def l1_error(true, pred):
"""L1 distance between tensors true and pred."""
return tf.reduce_sum(tf.abs(true - pred)) / tf.to_float(tf.size(pred)) | def l1_error(true, pred):
"""L1 distance between tensors true and pred."""
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train | calc_loss_psnr | Calculates loss and psnr for predictions over multiple timesteps. | tensor2tensor/models/video/epva.py | def calc_loss_psnr(gen_images, images, name, hparams=None, use_l1_loss=False):
"""Calculates loss and psnr for predictions over multiple timesteps."""
del hparams
with tf.name_scope(name):
loss, error, psnr_all = 0.0, 0.0, 0.0
for _, x, gx in zip(range(len(gen_images)), images, gen_images):
recon_co... | def calc_loss_psnr(gen_images, images, name, hparams=None, use_l1_loss=False):
"""Calculates loss and psnr for predictions over multiple timesteps."""
del hparams
with tf.name_scope(name):
loss, error, psnr_all = 0.0, 0.0, 0.0
for _, x, gx in zip(range(len(gen_images)), images, gen_images):
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train | next_frame_sv2p | SV2P model hparams. | tensor2tensor/models/video/sv2p_params.py | def next_frame_sv2p():
"""SV2P model hparams."""
hparams = basic_stochastic.next_frame_basic_stochastic()
hparams.optimizer = "true_adam"
hparams.learning_rate_schedule = "constant"
hparams.learning_rate_constant = 1e-3
hparams.video_num_input_frames = 1
hparams.video_num_target_frames = 3
hparams.batch... | def next_frame_sv2p():
"""SV2P model hparams."""
hparams = basic_stochastic.next_frame_basic_stochastic()
hparams.optimizer = "true_adam"
hparams.learning_rate_schedule = "constant"
hparams.learning_rate_constant = 1e-3
hparams.video_num_input_frames = 1
hparams.video_num_target_frames = 3
hparams.batch... | [
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train | next_frame_sv2p_discrete | SV2P discrete model hparams. | tensor2tensor/models/video/sv2p_params.py | def next_frame_sv2p_discrete():
"""SV2P discrete model hparams."""
hparams = next_frame_sv2p()
hparams.action_injection = "multiplicative"
hparams.small_mode = True
hparams.add_hparam("bottleneck_bits", 128)
hparams.add_hparam("bottleneck_noise", 0.02)
hparams.add_hparam("discrete_warmup_steps", 40000)
... | def next_frame_sv2p_discrete():
"""SV2P discrete model hparams."""
hparams = next_frame_sv2p()
hparams.action_injection = "multiplicative"
hparams.small_mode = True
hparams.add_hparam("bottleneck_bits", 128)
hparams.add_hparam("bottleneck_noise", 0.02)
hparams.add_hparam("discrete_warmup_steps", 40000)
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train | next_frame_sv2p_atari | SV2P model for atari. | tensor2tensor/models/video/sv2p_params.py | def next_frame_sv2p_atari():
"""SV2P model for atari."""
hparams = next_frame_sv2p()
hparams.video_num_input_frames = 4
hparams.video_num_target_frames = 4
hparams.action_injection = "multiplicative"
hparams.num_iterations_1st_stage = 12000
hparams.num_iterations_2nd_stage = 12000
hparams.anneal_end = 4... | def next_frame_sv2p_atari():
"""SV2P model for atari."""
hparams = next_frame_sv2p()
hparams.video_num_input_frames = 4
hparams.video_num_target_frames = 4
hparams.action_injection = "multiplicative"
hparams.num_iterations_1st_stage = 12000
hparams.num_iterations_2nd_stage = 12000
hparams.anneal_end = 4... | [
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train | next_frame_sv2p_atari_softmax | SV2P model for atari with softmax. | tensor2tensor/models/video/sv2p_params.py | def next_frame_sv2p_atari_softmax():
"""SV2P model for atari with softmax."""
hparams = next_frame_sv2p_atari()
hparams.bottom = {}
hparams.loss = {}
hparams.top = {}
hparams.internal_loss = True
return hparams | def next_frame_sv2p_atari_softmax():
"""SV2P model for atari with softmax."""
hparams = next_frame_sv2p_atari()
hparams.bottom = {}
hparams.loss = {}
hparams.top = {}
hparams.internal_loss = True
return hparams | [
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train | next_frame_sv2p_tiny | Tiny SV2P model. | tensor2tensor/models/video/sv2p_params.py | def next_frame_sv2p_tiny():
"""Tiny SV2P model."""
hparams = next_frame_sv2p_atari_softmax()
hparams.batch_size = 2
hparams.tiny_mode = True
hparams.num_masks = 1
hparams.video_modality_loss_cutoff = 0.4
hparams.video_num_input_frames = 4
hparams.video_num_target_frames = 4
return hparams | def next_frame_sv2p_tiny():
"""Tiny SV2P model."""
hparams = next_frame_sv2p_atari_softmax()
hparams.batch_size = 2
hparams.tiny_mode = True
hparams.num_masks = 1
hparams.video_modality_loss_cutoff = 0.4
hparams.video_num_input_frames = 4
hparams.video_num_target_frames = 4
return hparams | [
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train | next_frame_sv2p_cutoff | SV2P model with additional cutoff in L2 loss for environments like pong. | tensor2tensor/models/video/sv2p_params.py | def next_frame_sv2p_cutoff():
"""SV2P model with additional cutoff in L2 loss for environments like pong."""
hparams = next_frame_sv2p()
hparams.video_modality_loss_cutoff = 0.4
hparams.video_num_input_frames = 4
hparams.video_num_target_frames = 1
return hparams | def next_frame_sv2p_cutoff():
"""SV2P model with additional cutoff in L2 loss for environments like pong."""
hparams = next_frame_sv2p()
hparams.video_modality_loss_cutoff = 0.4
hparams.video_num_input_frames = 4
hparams.video_num_target_frames = 1
return hparams | [
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train | _get_mscoco | Download and extract MSCOCO datasets to directory unless it is there. | tensor2tensor/data_generators/mscoco.py | def _get_mscoco(directory):
"""Download and extract MSCOCO datasets to directory unless it is there."""
for url in _MSCOCO_URLS:
filename = os.path.basename(url)
download_url = os.path.join(_MSCOCO_ROOT_URL, url)
path = generator_utils.maybe_download(directory, filename, download_url)
unzip_dir = os... | def _get_mscoco(directory):
"""Download and extract MSCOCO datasets to directory unless it is there."""
for url in _MSCOCO_URLS:
filename = os.path.basename(url)
download_url = os.path.join(_MSCOCO_ROOT_URL, url)
path = generator_utils.maybe_download(directory, filename, download_url)
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train | mscoco_generator | Image generator for MSCOCO captioning problem with token-wise captions.
Args:
data_dir: path to the data directory.
tmp_dir: path to temporary storage directory.
training: a Boolean; if true, we use the train set, otherwise the test set.
how_many: how many images and labels to generate.
start_fro... | tensor2tensor/data_generators/mscoco.py | def mscoco_generator(data_dir,
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start_from=0,
eos_list=None,
vocab_filename=None):
"""Image generator for MSCOCO captioning problem with token-wise captions.
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train | flags_as_args | Convert FLAGS to list of args suitable for passing on cmd line. | tensor2tensor/utils/cloud_mlengine.py | def flags_as_args():
"""Convert FLAGS to list of args suitable for passing on cmd line."""
if hasattr(FLAGS, "flag_values_dict"):
args_dict = FLAGS.flag_values_dict()
else:
args_dict = dict(FLAGS.__dict__["__flags"])
del args_dict["cloud_mlengine"]
# Configured later
del args_dict["t2t_usr_dir"]
a... | def flags_as_args():
"""Convert FLAGS to list of args suitable for passing on cmd line."""
if hasattr(FLAGS, "flag_values_dict"):
args_dict = FLAGS.flag_values_dict()
else:
args_dict = dict(FLAGS.__dict__["__flags"])
del args_dict["cloud_mlengine"]
# Configured later
del args_dict["t2t_usr_dir"]
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train | get_default_master_type | Returns master_type for trainingInput. | tensor2tensor/utils/cloud_mlengine.py | def get_default_master_type(num_gpus=1):
"""Returns master_type for trainingInput."""
gpus_to_master_map = {
0: "standard",
1: "standard_p100",
4: "complex_model_m_p100",
8: "complex_model_l_gpu",
}
if num_gpus not in gpus_to_master_map:
raise ValueError("Num gpus must be in %s" %
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"""Returns master_type for trainingInput."""
gpus_to_master_map = {
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1: "standard_p100",
4: "complex_model_m_p100",
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}
if num_gpus not in gpus_to_master_map:
raise ValueError("Num gpus must be in %s" %
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train | configure_job | Construct jobSpec for ML Engine job. | tensor2tensor/utils/cloud_mlengine.py | def configure_job():
"""Construct jobSpec for ML Engine job."""
# See documentation:
# https://cloud.google.com/ml-engine/reference/rest/v1/projects.jobs#traininginput
training_input = {
"pythonModule": "tensor2tensor.bin.t2t_trainer",
"args": flags_as_args(),
"region": text_encoder.native_to_... | def configure_job():
"""Construct jobSpec for ML Engine job."""
# See documentation:
# https://cloud.google.com/ml-engine/reference/rest/v1/projects.jobs#traininginput
training_input = {
"pythonModule": "tensor2tensor.bin.t2t_trainer",
"args": flags_as_args(),
"region": text_encoder.native_to_... | [
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] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/utils/cloud_mlengine.py#L130-L170 | [
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train | launch_job | Launch job on ML Engine. | tensor2tensor/utils/cloud_mlengine.py | def launch_job(job_spec):
"""Launch job on ML Engine."""
project_id = "projects/{}".format(
text_encoder.native_to_unicode(default_project()))
credentials = GoogleCredentials.get_application_default()
cloudml = discovery.build("ml", "v1", credentials=credentials,
cache_discover... | def launch_job(job_spec):
"""Launch job on ML Engine."""
project_id = "projects/{}".format(
text_encoder.native_to_unicode(default_project()))
credentials = GoogleCredentials.get_application_default()
cloudml = discovery.build("ml", "v1", credentials=credentials,
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train | _tar_and_copy | Tar and gzip src_dir and copy to GCS target_dir. | tensor2tensor/utils/cloud_mlengine.py | def _tar_and_copy(src_dir, target_dir):
"""Tar and gzip src_dir and copy to GCS target_dir."""
src_dir = src_dir.rstrip("/")
target_dir = target_dir.rstrip("/")
tmp_dir = tempfile.gettempdir().rstrip("/")
src_base = os.path.basename(src_dir)
shell_run(
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"""Tar and gzip src_dir and copy to GCS target_dir."""
src_dir = src_dir.rstrip("/")
target_dir = target_dir.rstrip("/")
tmp_dir = tempfile.gettempdir().rstrip("/")
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train | tar_and_copy_t2t | Tar Tensor2Tensor and cp to train_dir. | tensor2tensor/utils/cloud_mlengine.py | def tar_and_copy_t2t(train_dir):
"""Tar Tensor2Tensor and cp to train_dir."""
tf.logging.info("Tarring and pushing local Tensor2Tensor package.")
output = text_encoder.native_to_unicode(shell_output(
"pip show tensor2tensor")).split("\n")
assert output[1].startswith("Version")
assert output[7].startswi... | def tar_and_copy_t2t(train_dir):
"""Tar Tensor2Tensor and cp to train_dir."""
tf.logging.info("Tarring and pushing local Tensor2Tensor package.")
output = text_encoder.native_to_unicode(shell_output(
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assert output[1].startswith("Version")
assert output[7].startswi... | [
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train | tar_and_copy_usr_dir | Package, tar, and copy usr_dir to GCS train_dir. | tensor2tensor/utils/cloud_mlengine.py | def tar_and_copy_usr_dir(usr_dir, train_dir):
"""Package, tar, and copy usr_dir to GCS train_dir."""
tf.logging.info("Tarring and pushing t2t_usr_dir.")
usr_dir = os.path.abspath(os.path.expanduser(usr_dir))
# Copy usr dir to a temp location
top_dir = os.path.join(tempfile.gettempdir(), "t2t_usr_container")
... | def tar_and_copy_usr_dir(usr_dir, train_dir):
"""Package, tar, and copy usr_dir to GCS train_dir."""
tf.logging.info("Tarring and pushing t2t_usr_dir.")
usr_dir = os.path.abspath(os.path.expanduser(usr_dir))
# Copy usr dir to a temp location
top_dir = os.path.join(tempfile.gettempdir(), "t2t_usr_container")
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train | validate_flags | Validates flags are set to acceptable values for CloudML Engine runs. | tensor2tensor/utils/cloud_mlengine.py | def validate_flags():
"""Validates flags are set to acceptable values for CloudML Engine runs."""
assert not job_dir()
assert FLAGS.output_dir.startswith("gs://")
assert FLAGS.data_dir.startswith("gs://")
assert FLAGS.worker_replicas <= 1
assert FLAGS.ps_replicas <= 0
if FLAGS.hparams_range:
assert FL... | def validate_flags():
"""Validates flags are set to acceptable values for CloudML Engine runs."""
assert not job_dir()
assert FLAGS.output_dir.startswith("gs://")
assert FLAGS.data_dir.startswith("gs://")
assert FLAGS.worker_replicas <= 1
assert FLAGS.ps_replicas <= 0
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train | launch | Launch t2t_trainer on Cloud ML Engine. | tensor2tensor/utils/cloud_mlengine.py | def launch():
"""Launch t2t_trainer on Cloud ML Engine."""
validate_flags()
job_spec = configure_job()
job_name = job_spec["jobId"]
tf.logging.info("Launching job %s with ML Engine spec:\n%s", job_name,
pprint.pformat(job_spec))
assert confirm()
train_dir = FLAGS.output_dir
t2t_tar = t... | def launch():
"""Launch t2t_trainer on Cloud ML Engine."""
validate_flags()
job_spec = configure_job()
job_name = job_spec["jobId"]
tf.logging.info("Launching job %s with ML Engine spec:\n%s", job_name,
pprint.pformat(job_spec))
assert confirm()
train_dir = FLAGS.output_dir
t2t_tar = t... | [
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train | add_weight | Decorator for Layers, overriding add_weight for trainable initializers. | tensor2tensor/layers/bayes.py | def add_weight(cls):
"""Decorator for Layers, overriding add_weight for trainable initializers."""
@functools.wraps(cls.add_weight)
def _add_weight(self,
name=None,
shape=None,
dtype=None,
initializer=None,
regularizer=None,... | def add_weight(cls):
"""Decorator for Layers, overriding add_weight for trainable initializers."""
@functools.wraps(cls.add_weight)
def _add_weight(self,
name=None,
shape=None,
dtype=None,
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train | NextFrameBaseVae.get_beta | Get the KL multiplier, either dynamically or schedule based.
if hparams.latent_loss_multiplier_dynamic is set to true, then beta
is being adjusted to keep KL under hparams.latent_loss_multiplier_epsilon.
In order to do so, the beta is being updated at each iteration
by taking steps of size hparams.late... | tensor2tensor/models/video/base_vae.py | def get_beta(self, kl_loss=0.0):
"""Get the KL multiplier, either dynamically or schedule based.
if hparams.latent_loss_multiplier_dynamic is set to true, then beta
is being adjusted to keep KL under hparams.latent_loss_multiplier_epsilon.
In order to do so, the beta is being updated at each iteration
... | def get_beta(self, kl_loss=0.0):
"""Get the KL multiplier, either dynamically or schedule based.
if hparams.latent_loss_multiplier_dynamic is set to true, then beta
is being adjusted to keep KL under hparams.latent_loss_multiplier_epsilon.
In order to do so, the beta is being updated at each iteration
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train | NextFrameBaseVae.get_kl_loss | Get KL loss for all the predicted Gaussians. | tensor2tensor/models/video/base_vae.py | def get_kl_loss(self, means, log_vars, means_p=None, log_vars_p=None):
"""Get KL loss for all the predicted Gaussians."""
kl_loss = 0.0
if means_p is None:
means_p = tf.unstack(tf.zeros_like(means))
if log_vars_p is None:
log_vars_p = tf.unstack(tf.zeros_like(log_vars))
enumerated_inputs... | def get_kl_loss(self, means, log_vars, means_p=None, log_vars_p=None):
"""Get KL loss for all the predicted Gaussians."""
kl_loss = 0.0
if means_p is None:
means_p = tf.unstack(tf.zeros_like(means))
if log_vars_p is None:
log_vars_p = tf.unstack(tf.zeros_like(log_vars))
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train | NextFrameBaseVae.construct_latent_tower | Create the latent tower. | tensor2tensor/models/video/base_vae.py | def construct_latent_tower(self, images, time_axis):
"""Create the latent tower."""
# No latent in the first phase
first_phase = tf.less(
self.get_iteration_num(), self.hparams.num_iterations_1st_stage)
# use all frames by default but this allows more
# predicted frames at inference time
... | def construct_latent_tower(self, images, time_axis):
"""Create the latent tower."""
# No latent in the first phase
first_phase = tf.less(
self.get_iteration_num(), self.hparams.num_iterations_1st_stage)
# use all frames by default but this allows more
# predicted frames at inference time
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train | transformer_encode | Encode transformer inputs.
Args:
encoder_function: the encoder function
inputs: Transformer inputs [batch_size, input_length, 1, hidden_dim] which
will be flattened along the two spatial dimensions.
target_space: scalar, target space ID.
hparams: hyperparameters for model.
attention_weights... | tensor2tensor/models/transformer.py | def transformer_encode(encoder_function, inputs, target_space, hparams,
attention_weights=None, features=None, losses=None,
**kwargs):
"""Encode transformer inputs.
Args:
encoder_function: the encoder function
inputs: Transformer inputs [batch_size, input_lengt... | def transformer_encode(encoder_function, inputs, target_space, hparams,
attention_weights=None, features=None, losses=None,
**kwargs):
"""Encode transformer inputs.
Args:
encoder_function: the encoder function
inputs: Transformer inputs [batch_size, input_lengt... | [
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train | transformer_decode | Decode Transformer outputs from encoder representation.
Args:
decoder_function: the decoder function
decoder_input: inputs to bottom of the model. [batch_size, decoder_length,
hidden_dim]
encoder_output: Encoder representation. [batch_size, input_length,
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encoder_decoder_attent... | tensor2tensor/models/transformer.py | def transformer_decode(decoder_function,
decoder_input,
encoder_output,
encoder_decoder_attention_bias,
decoder_self_attention_bias,
hparams,
attention_weights=None,
... | def transformer_decode(decoder_function,
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train | _init_transformer_cache | Create the initial cache for Transformer fast decoding. | tensor2tensor/models/transformer.py | def _init_transformer_cache(cache, hparams, batch_size, attention_init_length,
encoder_output, encoder_decoder_attention_bias,
scope_prefix):
"""Create the initial cache for Transformer fast decoding."""
key_channels = hparams.attention_key_channels or hparams... | def _init_transformer_cache(cache, hparams, batch_size, attention_init_length,
encoder_output, encoder_decoder_attention_bias,
scope_prefix):
"""Create the initial cache for Transformer fast decoding."""
key_channels = hparams.attention_key_channels or hparams... | [
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train | fast_decode_tpu | Given encoder output and a symbols to logits function, does fast decoding.
Implements both greedy and beam search decoding for TPU, uses beam search iff
beam_size > 1, otherwise beam search related arguments are ignored.
Args:
encoder_output: A tensor, output from encoder.
encoder_decoder_attention_bias... | tensor2tensor/models/transformer.py | def fast_decode_tpu(encoder_output,
encoder_decoder_attention_bias,
symbols_to_logits_fn,
hparams,
decode_length,
vocab_size,
init_cache_fn=_init_transformer_cache,
beam_size=1,
... | def fast_decode_tpu(encoder_output,
encoder_decoder_attention_bias,
symbols_to_logits_fn,
hparams,
decode_length,
vocab_size,
init_cache_fn=_init_transformer_cache,
beam_size=1,
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train | fast_decode | Given encoder output and a symbols to logits function, does fast decoding.
Implements both greedy and beam search decoding, uses beam search iff
beam_size > 1, otherwise beam search related arguments are ignored.
Args:
encoder_output: Output from encoder.
encoder_decoder_attention_bias: a bias tensor fo... | tensor2tensor/models/transformer.py | def fast_decode(encoder_output,
encoder_decoder_attention_bias,
symbols_to_logits_fn,
hparams,
decode_length,
vocab_size,
init_cache_fn=_init_transformer_cache,
beam_size=1,
top_beams=1,
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hparams,
decode_length,
vocab_size,
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train | transformer_base_v1 | Set of hyperparameters. | tensor2tensor/models/transformer.py | def transformer_base_v1():
"""Set of hyperparameters."""
hparams = common_hparams.basic_params1()
hparams.norm_type = "layer"
hparams.hidden_size = 512
hparams.batch_size = 4096
hparams.max_length = 256
hparams.clip_grad_norm = 0. # i.e. no gradient clipping
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"""Set of hyperparameters."""
hparams = common_hparams.basic_params1()
hparams.norm_type = "layer"
hparams.hidden_size = 512
hparams.batch_size = 4096
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train | transformer_base_v2 | Set of hyperparameters. | tensor2tensor/models/transformer.py | def transformer_base_v2():
"""Set of hyperparameters."""
hparams = transformer_base_v1()
hparams.layer_preprocess_sequence = "n"
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"""Set of hyperparameters."""
hparams = transformer_base_v1()
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train | transformer_base_vq_ada_32ex_packed | Set of hyperparameters for lm1b packed following tpu params. | tensor2tensor/models/transformer.py | def transformer_base_vq_ada_32ex_packed():
"""Set of hyperparameters for lm1b packed following tpu params."""
hparams = transformer_base_v2()
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hparams.moe_num_experts = 32
hparams.gating_type = "vq"
# this gives us a batch size of 16 because each seq is len ... | def transformer_base_vq_ada_32ex_packed():
"""Set of hyperparameters for lm1b packed following tpu params."""
hparams = transformer_base_v2()
expert_utils.update_hparams_for_vq_gating(hparams)
hparams.moe_num_experts = 32
hparams.gating_type = "vq"
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train | transformer_base_vq1_16_nb1_packed_nda_b01_scales | Set of hyperparameters. | tensor2tensor/models/transformer.py | def transformer_base_vq1_16_nb1_packed_nda_b01_scales():
"""Set of hyperparameters."""
hparams = transformer_base_vq_ada_32ex_packed()
hparams.use_scales = int(True)
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hparams.moe_k = 1
hparams.beta = 0.1
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"""Set of hyperparameters."""
hparams = transformer_base_vq_ada_32ex_packed()
hparams.use_scales = int(True)
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train | transformer_base_vq1_16_nb1_packed_dan_b01_scales | Set of hyperparameters. | tensor2tensor/models/transformer.py | def transformer_base_vq1_16_nb1_packed_dan_b01_scales():
"""Set of hyperparameters."""
hparams = transformer_base_vq_ada_32ex_packed()
hparams.use_scales = int(True)
hparams.moe_num_experts = 16
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hparams.beta = 0.1
hparams.ema = False
return hparams | def transformer_base_vq1_16_nb1_packed_dan_b01_scales():
"""Set of hyperparameters."""
hparams = transformer_base_vq_ada_32ex_packed()
hparams.use_scales = int(True)
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train | transformer_base_vq1_16_nb1_packed_nda_b01_scales_dialog | Set of hyperparameters. | tensor2tensor/models/transformer.py | def transformer_base_vq1_16_nb1_packed_nda_b01_scales_dialog():
"""Set of hyperparameters."""
hparams = transformer_base_vq1_16_nb1_packed_nda_b01_scales()
hparams.batch_size = 2048
hparams.max_length = 1024
hparams.filter_size = 3072
return hparams | def transformer_base_vq1_16_nb1_packed_nda_b01_scales_dialog():
"""Set of hyperparameters."""
hparams = transformer_base_vq1_16_nb1_packed_nda_b01_scales()
hparams.batch_size = 2048
hparams.max_length = 1024
hparams.filter_size = 3072
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train | transformer_ada_lmpackedbase_dialog | Set of hyperparameters. | tensor2tensor/models/transformer.py | def transformer_ada_lmpackedbase_dialog():
"""Set of hyperparameters."""
hparams = transformer_base_vq_ada_32ex_packed()
hparams.max_length = 1024
hparams.ffn_layer = "dense_relu_dense"
hparams.batch_size = 4096
return hparams | def transformer_ada_lmpackedbase_dialog():
"""Set of hyperparameters."""
hparams = transformer_base_vq_ada_32ex_packed()
hparams.max_length = 1024
hparams.ffn_layer = "dense_relu_dense"
hparams.batch_size = 4096
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train | transformer_base_v3 | Base parameters for Transformer model. | tensor2tensor/models/transformer.py | def transformer_base_v3():
"""Base parameters for Transformer model."""
# Update parameters here, then occasionally cut a versioned set, e.g.
# transformer_base_v2.
hparams = transformer_base_v2()
hparams.optimizer_adam_beta2 = 0.997
# New way of specifying learning rate schedule.
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"""Base parameters for Transformer model."""
# Update parameters here, then occasionally cut a versioned set, e.g.
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hparams = transformer_base_v2()
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train | transformer_big | HParams for transformer big model on WMT. | tensor2tensor/models/transformer.py | def transformer_big():
"""HParams for transformer big model on WMT."""
hparams = transformer_base()
hparams.hidden_size = 1024
hparams.filter_size = 4096
# Reduce batch size to 2048 from 4096 to be able to train the model on a GPU
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hparams.batch_size = ... | def transformer_big():
"""HParams for transformer big model on WMT."""
hparams = transformer_base()
hparams.hidden_size = 1024
hparams.filter_size = 4096
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train | transformer_tall | Hparams for transformer on LM for pretraining/finetuning/mixing. | tensor2tensor/models/transformer.py | def transformer_tall():
"""Hparams for transformer on LM for pretraining/finetuning/mixing."""
hparams = transformer_base()
hparams.batch_size = 2048
hparams.hidden_size = 768
hparams.filter_size = 3072
hparams.num_hidden_layers = 12
hparams.num_heads = 12
hparams.label_smoothing = 0.0
hparams.max_len... | def transformer_tall():
"""Hparams for transformer on LM for pretraining/finetuning/mixing."""
hparams = transformer_base()
hparams.batch_size = 2048
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train | transformer_tall_finetune_tied | Tied means fine-tune CNN/DM summarization as LM. | tensor2tensor/models/transformer.py | def transformer_tall_finetune_tied():
"""Tied means fine-tune CNN/DM summarization as LM."""
hparams = transformer_tall()
hparams.multiproblem_max_input_length = 750
hparams.multiproblem_max_target_length = 100
hparams.multiproblem_schedule_max_examples = 0
hparams.learning_rate_schedule = ("linear_warmup*c... | def transformer_tall_finetune_tied():
"""Tied means fine-tune CNN/DM summarization as LM."""
hparams = transformer_tall()
hparams.multiproblem_max_input_length = 750
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train | transformer_tall_finetune_uniencdec | Fine-tune CNN/DM with a unidirectional encoder and decoder. | tensor2tensor/models/transformer.py | def transformer_tall_finetune_uniencdec():
"""Fine-tune CNN/DM with a unidirectional encoder and decoder."""
hparams = transformer_tall()
hparams.max_input_seq_length = 750
hparams.max_target_seq_length = 100
hparams.optimizer = "true_adam"
hparams.learning_rate_schedule = ("linear_warmup*constant*cosdecay"... | def transformer_tall_finetune_uniencdec():
"""Fine-tune CNN/DM with a unidirectional encoder and decoder."""
hparams = transformer_tall()
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train | transformer_tall_train_uniencdec | Train CNN/DM with a unidirectional encoder and decoder. | tensor2tensor/models/transformer.py | def transformer_tall_train_uniencdec():
"""Train CNN/DM with a unidirectional encoder and decoder."""
hparams = transformer_tall()
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"""Train CNN/DM with a unidirectional encoder and decoder."""
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train | transformer_tall_finetune_textclass | Hparams for transformer on LM for finetuning on text class problems. | tensor2tensor/models/transformer.py | def transformer_tall_finetune_textclass():
"""Hparams for transformer on LM for finetuning on text class problems."""
hparams = transformer_tall()
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"""Hparams for transformer on LM for finetuning on text class problems."""
hparams = transformer_tall()
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train | transformer_tall_pretrain_lm | Hparams for transformer on LM pretraining (with 64k vocab). | tensor2tensor/models/transformer.py | def transformer_tall_pretrain_lm():
"""Hparams for transformer on LM pretraining (with 64k vocab)."""
hparams = transformer_tall()
hparams.learning_rate_constant = 2e-4
hparams.learning_rate_schedule = ("linear_warmup*constant*cosdecay")
hparams.optimizer = "adam_w"
hparams.optimizer_adam_beta1 = 0.9
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"""Hparams for transformer on LM pretraining (with 64k vocab)."""
hparams = transformer_tall()
hparams.learning_rate_constant = 2e-4
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train | transformer_tall_pretrain_lm_tpu_adafactor | Hparams for transformer on LM pretraining (with 64k vocab) on TPU. | tensor2tensor/models/transformer.py | def transformer_tall_pretrain_lm_tpu_adafactor():
"""Hparams for transformer on LM pretraining (with 64k vocab) on TPU."""
hparams = transformer_tall_pretrain_lm()
update_hparams_for_tpu(hparams)
hparams.max_length = 1024
# For multi-problem on TPU we need it in absolute examples.
hparams.batch_size = 8
h... | def transformer_tall_pretrain_lm_tpu_adafactor():
"""Hparams for transformer on LM pretraining (with 64k vocab) on TPU."""
hparams = transformer_tall_pretrain_lm()
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hparams.max_length = 1024
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hparams.batch_size = 8
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train | transformer_tall_pretrain_lm_tpu_adafactor_large | Hparams for transformer on LM pretraining on TPU, large model. | tensor2tensor/models/transformer.py | def transformer_tall_pretrain_lm_tpu_adafactor_large():
"""Hparams for transformer on LM pretraining on TPU, large model."""
hparams = transformer_tall_pretrain_lm_tpu_adafactor()
hparams.hidden_size = 1024
hparams.num_heads = 16
hparams.filter_size = 32768 # max fitting in 16G memory is 49152, batch 2
hpa... | def transformer_tall_pretrain_lm_tpu_adafactor_large():
"""Hparams for transformer on LM pretraining on TPU, large model."""
hparams = transformer_tall_pretrain_lm_tpu_adafactor()
hparams.hidden_size = 1024
hparams.num_heads = 16
hparams.filter_size = 32768 # max fitting in 16G memory is 49152, batch 2
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train | transformer_tall_pretrain_lm_tpu | Hparams for transformer on LM pretraining on TPU with AdamW. | tensor2tensor/models/transformer.py | def transformer_tall_pretrain_lm_tpu():
"""Hparams for transformer on LM pretraining on TPU with AdamW."""
hparams = transformer_tall_pretrain_lm_tpu_adafactor()
# Optimizer gets reset in update_hparams_for_tpu so we set it again here.
hparams.learning_rate_constant = 2e-4
hparams.learning_rate_schedule = ("l... | def transformer_tall_pretrain_lm_tpu():
"""Hparams for transformer on LM pretraining on TPU with AdamW."""
hparams = transformer_tall_pretrain_lm_tpu_adafactor()
# Optimizer gets reset in update_hparams_for_tpu so we set it again here.
hparams.learning_rate_constant = 2e-4
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train | transformer_base_single_gpu | HParams for transformer base model for single GPU. | tensor2tensor/models/transformer.py | def transformer_base_single_gpu():
"""HParams for transformer base model for single GPU."""
hparams = transformer_base()
hparams.batch_size = 1024
hparams.learning_rate_schedule = "constant*linear_warmup*rsqrt_decay"
hparams.learning_rate_constant = 0.1
hparams.learning_rate_warmup_steps = 16000
return hp... | def transformer_base_single_gpu():
"""HParams for transformer base model for single GPU."""
hparams = transformer_base()
hparams.batch_size = 1024
hparams.learning_rate_schedule = "constant*linear_warmup*rsqrt_decay"
hparams.learning_rate_constant = 0.1
hparams.learning_rate_warmup_steps = 16000
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train | transformer_parsing_base | HParams for parsing on WSJ only. | tensor2tensor/models/transformer.py | def transformer_parsing_base():
"""HParams for parsing on WSJ only."""
hparams = transformer_base()
hparams.attention_dropout = 0.2
hparams.layer_prepostprocess_dropout = 0.2
hparams.max_length = 512
hparams.learning_rate_warmup_steps = 16000
hparams.hidden_size = 1024
hparams.learning_rate = 0.05
hpa... | def transformer_parsing_base():
"""HParams for parsing on WSJ only."""
hparams = transformer_base()
hparams.attention_dropout = 0.2
hparams.layer_prepostprocess_dropout = 0.2
hparams.max_length = 512
hparams.learning_rate_warmup_steps = 16000
hparams.hidden_size = 1024
hparams.learning_rate = 0.05
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train | transformer_parsing_big | HParams for parsing on WSJ semi-supervised. | tensor2tensor/models/transformer.py | def transformer_parsing_big():
"""HParams for parsing on WSJ semi-supervised."""
hparams = transformer_big()
hparams.max_length = 512
hparams.shared_source_target_embedding = False
hparams.learning_rate_warmup_steps = 4000
hparams.layer_prepostprocess_dropout = 0.1
hparams.batch_size = 2048
hparams.lear... | def transformer_parsing_big():
"""HParams for parsing on WSJ semi-supervised."""
hparams = transformer_big()
hparams.max_length = 512
hparams.shared_source_target_embedding = False
hparams.learning_rate_warmup_steps = 4000
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hparams.batch_size = 2048
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train | transformer_base_range | Small range of hyperparameters. | tensor2tensor/models/transformer.py | def transformer_base_range(rhp):
"""Small range of hyperparameters."""
# After starting from base, set intervals for some parameters.
rhp.set_float("learning_rate", 0.3, 3.0, scale=rhp.LOG_SCALE)
rhp.set_discrete("learning_rate_warmup_steps",
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rhp.set_float("... | def transformer_base_range(rhp):
"""Small range of hyperparameters."""
# After starting from base, set intervals for some parameters.
rhp.set_float("learning_rate", 0.3, 3.0, scale=rhp.LOG_SCALE)
rhp.set_discrete("learning_rate_warmup_steps",
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train | transformer_relative | Use relative position embeddings instead of absolute position encodings. | tensor2tensor/models/transformer.py | def transformer_relative():
"""Use relative position embeddings instead of absolute position encodings."""
hparams = transformer_base()
hparams.pos = None
hparams.self_attention_type = "dot_product_relative"
hparams.max_relative_position = 20
return hparams | def transformer_relative():
"""Use relative position embeddings instead of absolute position encodings."""
hparams = transformer_base()
hparams.pos = None
hparams.self_attention_type = "dot_product_relative"
hparams.max_relative_position = 20
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train | transformer_mlperf_tpu | HParams for Transformer model on TPU for MLPerf on TPU 2x2. | tensor2tensor/models/transformer.py | def transformer_mlperf_tpu():
"""HParams for Transformer model on TPU for MLPerf on TPU 2x2."""
hparams = transformer_base_v3()
hparams.mlperf_mode = True
hparams.symbol_modality_num_shards = 1
hparams.max_length = 256 # ignored when using "_packed" problems
hparams.batch_size = 2048 # per-chip batch size... | def transformer_mlperf_tpu():
"""HParams for Transformer model on TPU for MLPerf on TPU 2x2."""
hparams = transformer_base_v3()
hparams.mlperf_mode = True
hparams.symbol_modality_num_shards = 1
hparams.max_length = 256 # ignored when using "_packed" problems
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train | update_hparams_for_tpu | Change hparams to be compatible with TPU training. | tensor2tensor/models/transformer.py | def update_hparams_for_tpu(hparams):
"""Change hparams to be compatible with TPU training."""
# Adafactor uses less memory than Adam.
# switch to Adafactor with its recommended learning rate scheme.
hparams.optimizer = "Adafactor"
hparams.learning_rate_schedule = "rsqrt_decay"
hparams.learning_rate_warmup_... | def update_hparams_for_tpu(hparams):
"""Change hparams to be compatible with TPU training."""
# Adafactor uses less memory than Adam.
# switch to Adafactor with its recommended learning rate scheme.
hparams.optimizer = "Adafactor"
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train | transformer_tpu_range | Small range of hyperparameters. | tensor2tensor/models/transformer.py | def transformer_tpu_range(rhp):
"""Small range of hyperparameters."""
# After starting from base, set intervals for some parameters.
rhp.set_float("learning_rate", 0.3, 3.0, scale=rhp.LOG_SCALE)
rhp.set_discrete("learning_rate_warmup_steps",
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rhp.set_float("i... | def transformer_tpu_range(rhp):
"""Small range of hyperparameters."""
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train | transformer_clean | No dropout, label smoothing, max_length. | tensor2tensor/models/transformer.py | def transformer_clean():
"""No dropout, label smoothing, max_length."""
hparams = transformer_base_v2()
hparams.label_smoothing = 0.0
hparams.layer_prepostprocess_dropout = 0.0
hparams.attention_dropout = 0.0
hparams.relu_dropout = 0.0
hparams.max_length = 0
return hparams | def transformer_clean():
"""No dropout, label smoothing, max_length."""
hparams = transformer_base_v2()
hparams.label_smoothing = 0.0
hparams.layer_prepostprocess_dropout = 0.0
hparams.attention_dropout = 0.0
hparams.relu_dropout = 0.0
hparams.max_length = 0
return hparams | [
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train | transformer_lm_tpu_0 | HParams for training languagemodel_lm1b8k on tpu. 92M Params. | tensor2tensor/models/transformer.py | def transformer_lm_tpu_0():
"""HParams for training languagemodel_lm1b8k on tpu. 92M Params."""
hparams = transformer_clean_big()
update_hparams_for_tpu(hparams)
hparams.num_heads = 4 # Heads are expensive on TPUs.
hparams.batch_size = 4096
hparams.shared_embedding_and_softmax_weights = False
hparams.la... | def transformer_lm_tpu_0():
"""HParams for training languagemodel_lm1b8k on tpu. 92M Params."""
hparams = transformer_clean_big()
update_hparams_for_tpu(hparams)
hparams.num_heads = 4 # Heads are expensive on TPUs.
hparams.batch_size = 4096
hparams.shared_embedding_and_softmax_weights = False
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train | transformer_librispeech_v1 | HParams for training ASR model on LibriSpeech V1. | tensor2tensor/models/transformer.py | def transformer_librispeech_v1():
"""HParams for training ASR model on LibriSpeech V1."""
hparams = transformer_base()
hparams.num_heads = 4
hparams.filter_size = 1024
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hparams.num_decoder_layers = 3
hparams.learning_rate = 0.15
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"""HParams for training ASR model on LibriSpeech V1."""
hparams = transformer_base()
hparams.num_heads = 4
hparams.filter_size = 1024
hparams.hidden_size = 256
hparams.num_encoder_layers = 5
hparams.num_decoder_layers = 3
hparams.learning_rate = 0.15
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train | transformer_librispeech_v2 | HParams for training ASR model on LibriSpeech V2. | tensor2tensor/models/transformer.py | def transformer_librispeech_v2():
"""HParams for training ASR model on LibriSpeech V2."""
hparams = transformer_base()
hparams.max_length = 1240000
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"""HParams for training ASR model on LibriSpeech V2."""
hparams = transformer_base()
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train | transformer_librispeech_tpu_v1 | HParams for training ASR model on Librispeech on TPU v1. | tensor2tensor/models/transformer.py | def transformer_librispeech_tpu_v1():
"""HParams for training ASR model on Librispeech on TPU v1."""
hparams = transformer_librispeech_v1()
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hparams.batch_size = 16
librispeech.set_librispeech_length_hparams(hparams)
return hparams | def transformer_librispeech_tpu_v1():
"""HParams for training ASR model on Librispeech on TPU v1."""
hparams = transformer_librispeech_v1()
update_hparams_for_tpu(hparams)
hparams.batch_size = 16
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train | transformer_librispeech_tpu_v2 | HParams for training ASR model on Librispeech on TPU v2. | tensor2tensor/models/transformer.py | def transformer_librispeech_tpu_v2():
"""HParams for training ASR model on Librispeech on TPU v2."""
hparams = transformer_librispeech_v2()
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hparams.batch_size = 16
librispeech.set_librispeech_length_hparams(hparams)
return hparams | def transformer_librispeech_tpu_v2():
"""HParams for training ASR model on Librispeech on TPU v2."""
hparams = transformer_librispeech_v2()
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hparams.batch_size = 16
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train | transformer_tpu_1b | Hparams for machine translation with ~1.1B parameters. | tensor2tensor/models/transformer.py | def transformer_tpu_1b():
"""Hparams for machine translation with ~1.1B parameters."""
hparams = transformer_tpu()
hparams.hidden_size = 2048
hparams.filter_size = 8192
hparams.num_hidden_layers = 8
# smaller batch size to avoid OOM
hparams.batch_size = 1024
hparams.activation_dtype = "bfloat16"
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"""Hparams for machine translation with ~1.1B parameters."""
hparams = transformer_tpu()
hparams.hidden_size = 2048
hparams.filter_size = 8192
hparams.num_hidden_layers = 8
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hparams.batch_size = 1024
hparams.activation_dtype = "bfloat16"
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train | transformer_wikitext103_l4k_v0 | HParams for training languagemodel_wikitext103_l4k. | tensor2tensor/models/transformer.py | def transformer_wikitext103_l4k_v0():
"""HParams for training languagemodel_wikitext103_l4k."""
hparams = transformer_big()
# Adafactor uses less memory than Adam.
# switch to Adafactor with its recommended learning rate scheme.
hparams.optimizer = "Adafactor"
hparams.learning_rate_schedule = "rsqrt_decay"... | def transformer_wikitext103_l4k_v0():
"""HParams for training languagemodel_wikitext103_l4k."""
hparams = transformer_big()
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hparams.optimizer = "Adafactor"
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train | transformer_wikitext103_l4k_memory_v0 | HParams for training languagemodel_wikitext103_l4k with memory. | tensor2tensor/models/transformer.py | def transformer_wikitext103_l4k_memory_v0():
"""HParams for training languagemodel_wikitext103_l4k with memory."""
hparams = transformer_wikitext103_l4k_v0()
hparams.split_targets_chunk_length = 64
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"""HParams for training languagemodel_wikitext103_l4k with memory."""
hparams = transformer_wikitext103_l4k_v0()
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train | transformer_wikitext103_l16k_memory_v0 | HParams for training languagemodel_wikitext103_l16k with memory. | tensor2tensor/models/transformer.py | def transformer_wikitext103_l16k_memory_v0():
"""HParams for training languagemodel_wikitext103_l16k with memory."""
hparams = transformer_wikitext103_l4k_memory_v0()
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"""HParams for training languagemodel_wikitext103_l16k with memory."""
hparams = transformer_wikitext103_l4k_memory_v0()
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train | transformer_cifar10_memory_v0 | HParams for training image_cifar10_plain_gen_flat_rev with memory. | tensor2tensor/models/transformer.py | def transformer_cifar10_memory_v0():
"""HParams for training image_cifar10_plain_gen_flat_rev with memory."""
hparams = transformer_wikitext103_l4k_memory_v0()
hparams.num_hidden_layers = 6
hparams.max_length = 32 * 32 * 3
hparams.split_targets_chunk_length = 64 * 3
hparams.split_targets_max_chunks = int(... | def transformer_cifar10_memory_v0():
"""HParams for training image_cifar10_plain_gen_flat_rev with memory."""
hparams = transformer_wikitext103_l4k_memory_v0()
hparams.num_hidden_layers = 6
hparams.max_length = 32 * 32 * 3
hparams.split_targets_chunk_length = 64 * 3
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train | transformer_imagenet64_memory_v0 | HParams for training image_imagenet64_gen_flat_rev with memory. | tensor2tensor/models/transformer.py | def transformer_imagenet64_memory_v0():
"""HParams for training image_imagenet64_gen_flat_rev with memory."""
hparams = transformer_cifar10_memory_v0()
hparams.max_length = 64 * 64 * 3
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hparams.max_length / hparams.split... | def transformer_imagenet64_memory_v0():
"""HParams for training image_imagenet64_gen_flat_rev with memory."""
hparams = transformer_cifar10_memory_v0()
hparams.max_length = 64 * 64 * 3
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train | maybe_reshape_4d_to_3d | Reshape input from 4D to 3D if necessary. | tensor2tensor/layers/common_image_attention.py | def maybe_reshape_4d_to_3d(x):
"""Reshape input from 4D to 3D if necessary."""
x_shape = common_layers.shape_list(x)
is_4d = False
if len(x_shape) == 4:
x = tf.reshape(x, [x_shape[0], x_shape[1]*x_shape[2], x_shape[3]])
is_4d = True
return x, x_shape, is_4d | def maybe_reshape_4d_to_3d(x):
"""Reshape input from 4D to 3D if necessary."""
x_shape = common_layers.shape_list(x)
is_4d = False
if len(x_shape) == 4:
x = tf.reshape(x, [x_shape[0], x_shape[1]*x_shape[2], x_shape[3]])
is_4d = True
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train | local_attention_2d | Local 2d, self attention layer. | tensor2tensor/layers/common_image_attention.py | def local_attention_2d(x, hparams, attention_type="local_attention_2d"):
"""Local 2d, self attention layer."""
# self-attention
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"""Local 2d, self attention layer."""
# self-attention
with tf.variable_scope("local_2d_self_att"):
y = common_attention.multihead_attention_2d(
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train | local_within_block_attention | Local within block self attention. | tensor2tensor/layers/common_image_attention.py | def local_within_block_attention(x,
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train | local_attention_1d | Local 1d self attention. | tensor2tensor/layers/common_image_attention.py | def local_attention_1d(x,
hparams,
attention_type="local_unmasked",
q_padding="VALID",
kv_padding="VALID"):
"""Local 1d self attention."""
# self-attention
x, x_shape, is_4d = maybe_reshape_4d_to_3d(x)
with tf.variable_s... | def local_attention_1d(x,
hparams,
attention_type="local_unmasked",
q_padding="VALID",
kv_padding="VALID"):
"""Local 1d self attention."""
# self-attention
x, x_shape, is_4d = maybe_reshape_4d_to_3d(x)
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train | get_dilated_1d_attention_mask | Dilated attention with a masking strategy. | tensor2tensor/layers/common_image_attention.py | def get_dilated_1d_attention_mask(
num_heads, block_size,
num_blocks, memory_size, gap_size,
name="dilated_mask"):
"""Dilated attention with a masking strategy."""
mask = np.ones((num_heads, block_size, 2*block_size), np.bool)
# now going over every row to do the right assignment of
# memory blocks... | def get_dilated_1d_attention_mask(
num_heads, block_size,
num_blocks, memory_size, gap_size,
name="dilated_mask"):
"""Dilated attention with a masking strategy."""
mask = np.ones((num_heads, block_size, 2*block_size), np.bool)
# now going over every row to do the right assignment of
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train | dilated_attention_1d | Dilated 1d self attention. | tensor2tensor/layers/common_image_attention.py | def dilated_attention_1d(x,
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q_padding="VALID",
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x, x_shape, is... | def dilated_attention_1d(x,
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train | local_global_attention | Local and global 1d self attention. | tensor2tensor/layers/common_image_attention.py | def local_global_attention(x,
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hparams,
q_padding="LEFT",
kv_padding="LEFT"):
"""Local and global 1d self attention."""
with tf.variable_scope("self_local_global_att"):
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train | full_self_attention | Full self-attention layer. | tensor2tensor/layers/common_image_attention.py | def full_self_attention(x,
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hparams,
q_padding="LEFT",
kv_padding="LEFT"):
"""Full self-attention layer."""
x, x_shape, is_4d = maybe_reshape_4d_to_3d(x)
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train | encdec_attention_1d | Local 1d self attention. | tensor2tensor/layers/common_image_attention.py | def encdec_attention_1d(x,
encoder_output,
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hparams):
"""Local 1d self attention."""
x, x_shape, is_4d = maybe_reshape_4d_to_3d(x)
encoder_output, _, _ = maybe_reshape_4d_to_3d(encoder_output)
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train | transformer_decoder_layers | Multi layer transformer. | tensor2tensor/layers/common_image_attention.py | def transformer_decoder_layers(inputs,
encoder_output,
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hparams,
self_attention_bias=None,
encoder_decoder_attention_bias=None,
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train | transformer_encoder_layers | Multi layer transformer encoder. | tensor2tensor/layers/common_image_attention.py | def transformer_encoder_layers(inputs,
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train | ffn_layer | ffn layer transformer. | tensor2tensor/layers/common_image_attention.py | def ffn_layer(x, hparams, losses=None):
"""ffn layer transformer."""
with tf.variable_scope("ffn"):
if hparams.ffn_layer == "none":
return x
if hparams.ffn_layer == "conv_hidden_relu":
y = common_layers.dense_relu_dense(
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"""ffn layer transformer."""
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return x
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train | get_self_attention_bias | Creates masked self attention bias.
Args:
x: A tensor of shape [batch, length, depth]
Returns:
self_attention_bias: A tensor of shape [length, length, 1] | tensor2tensor/layers/common_image_attention.py | def get_self_attention_bias(x):
"""Creates masked self attention bias.
Args:
x: A tensor of shape [batch, length, depth]
Returns:
self_attention_bias: A tensor of shape [length, length, 1]
"""
x_shape = common_layers.shape_list(x)
self_attention_bias = common_attention.attention_bias_lower_triang... | def get_self_attention_bias(x):
"""Creates masked self attention bias.
Args:
x: A tensor of shape [batch, length, depth]
Returns:
self_attention_bias: A tensor of shape [length, length, 1]
"""
x_shape = common_layers.shape_list(x)
self_attention_bias = common_attention.attention_bias_lower_triang... | [
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train | postprocess_image | Postprocessing after decoding.
Args:
x: Tensor of shape [batch, ...], where ... can be any rank such that the
number of elements in x is batch * rows * cols * hparams.hidden_size.
rows: Integer representing number of rows in a 2-D data point.
cols: Integer representing number of columns in a 2-D da... | tensor2tensor/layers/common_image_attention.py | def postprocess_image(x, rows, cols, hparams):
"""Postprocessing after decoding.
Args:
x: Tensor of shape [batch, ...], where ... can be any rank such that the
number of elements in x is batch * rows * cols * hparams.hidden_size.
rows: Integer representing number of rows in a 2-D data point.
cols... | def postprocess_image(x, rows, cols, hparams):
"""Postprocessing after decoding.
Args:
x: Tensor of shape [batch, ...], where ... can be any rank such that the
number of elements in x is batch * rows * cols * hparams.hidden_size.
rows: Integer representing number of rows in a 2-D data point.
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train | prepare_encoder | Prepare encoder for images. | tensor2tensor/layers/common_image_attention.py | def prepare_encoder(inputs, hparams, attention_type="local_1d"):
"""Prepare encoder for images."""
x = prepare_image(inputs, hparams, name="enc_channels")
# Add position signals.
x = add_pos_signals(x, hparams, "enc_pos")
x_shape = common_layers.shape_list(x)
if attention_type == "local_1d":
x = tf.resh... | def prepare_encoder(inputs, hparams, attention_type="local_1d"):
"""Prepare encoder for images."""
x = prepare_image(inputs, hparams, name="enc_channels")
# Add position signals.
x = add_pos_signals(x, hparams, "enc_pos")
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train | prepare_decoder | Prepare decoder for images. | tensor2tensor/layers/common_image_attention.py | def prepare_decoder(targets, hparams):
"""Prepare decoder for images."""
targets_shape = common_layers.shape_list(targets)
channels = hparams.num_channels
curr_infer_length = None
# during training, images are [batch, IMG_LEN, IMG_LEN, 3].
# At inference, they are [batch, curr_infer_length, 1, 1]
if hpar... | def prepare_decoder(targets, hparams):
"""Prepare decoder for images."""
targets_shape = common_layers.shape_list(targets)
channels = hparams.num_channels
curr_infer_length = None
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train | create_output | Creates output from decoder output and vars.
Args:
decoder_output: Tensor of shape [batch, ...], where ... can be any rank such
that the number of elements is batch * rows * cols * hparams.hidden_size.
rows: Integer representing number of rows in a 2-D data point.
cols: Integer representing number ... | tensor2tensor/layers/common_image_attention.py | def create_output(decoder_output, rows, cols, targets, hparams):
"""Creates output from decoder output and vars.
Args:
decoder_output: Tensor of shape [batch, ...], where ... can be any rank such
that the number of elements is batch * rows * cols * hparams.hidden_size.
rows: Integer representing numb... | def create_output(decoder_output, rows, cols, targets, hparams):
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Args:
decoder_output: Tensor of shape [batch, ...], where ... can be any rank such
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train | get_channel_embeddings | Get separate embedding for each of the channels. | tensor2tensor/layers/common_image_attention.py | def get_channel_embeddings(io_depth, targets, hidden_size, name="channel"):
"""Get separate embedding for each of the channels."""
targets_split = tf.split(targets, io_depth, axis=3)
rgb_embedding_var = tf.get_variable("rgb_target_emb_%s" % name,
[256 * io_depth, hidden_size]... | def get_channel_embeddings(io_depth, targets, hidden_size, name="channel"):
"""Get separate embedding for each of the channels."""
targets_split = tf.split(targets, io_depth, axis=3)
rgb_embedding_var = tf.get_variable("rgb_target_emb_%s" % name,
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train | PyFuncBatchEnv.simulate | Step the batch of environments.
The results of the step can be accessed from the variables defined below.
Args:
action: Tensor holding the batch of actions to apply.
Returns:
Operation. | tensor2tensor/rl/envs/py_func_batch_env.py | def simulate(self, action):
"""Step the batch of environments.
The results of the step can be accessed from the variables defined below.
Args:
action: Tensor holding the batch of actions to apply.
Returns:
Operation.
"""
with tf.name_scope("environment/simulate"):
if action.... | def simulate(self, action):
"""Step the batch of environments.
The results of the step can be accessed from the variables defined below.
Args:
action: Tensor holding the batch of actions to apply.
Returns:
Operation.
"""
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train | PyFuncBatchEnv._reset_non_empty | Reset the batch of environments.
Args:
indices: The batch indices of the environments to reset; defaults to all.
Returns:
Batch tensor of the new observations. | tensor2tensor/rl/envs/py_func_batch_env.py | def _reset_non_empty(self, indices):
"""Reset the batch of environments.
Args:
indices: The batch indices of the environments to reset; defaults to all.
Returns:
Batch tensor of the new observations.
"""
observ = tf.py_func(
self._batch_env.reset, [indices], self.observ_dtype, ... | def _reset_non_empty(self, indices):
"""Reset the batch of environments.
Args:
indices: The batch indices of the environments to reset; defaults to all.
Returns:
Batch tensor of the new observations.
"""
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train | include_revision | Decide whether to include a revision.
If the number of revisions is large, we exclude some revisions to avoid
a quadratic blowup in runtime, since the article is likely also large.
We make the ratio between consecutive included revision numbers
appproximately equal to "factor".
Args:
revision_num: an i... | tensor2tensor/data_generators/wiki_revision_utils.py | def include_revision(revision_num, skip_factor=1.1):
"""Decide whether to include a revision.
If the number of revisions is large, we exclude some revisions to avoid
a quadratic blowup in runtime, since the article is likely also large.
We make the ratio between consecutive included revision numbers
appprox... | def include_revision(revision_num, skip_factor=1.1):
"""Decide whether to include a revision.
If the number of revisions is large, we exclude some revisions to avoid
a quadratic blowup in runtime, since the article is likely also large.
We make the ratio between consecutive included revision numbers
appprox... | [
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] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L36-L55 | [
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train | file_page_generator | Read wikipedia pages from a history dump.
Since some pages can be terabytes in size (with all the revisions),
we limit page size to max_page_size bytes.
Args:
my_file: an open file object.
max_page_size: an integer
Yields:
strings | tensor2tensor/data_generators/wiki_revision_utils.py | def file_page_generator(my_file, max_page_size=2**28):
"""Read wikipedia pages from a history dump.
Since some pages can be terabytes in size (with all the revisions),
we limit page size to max_page_size bytes.
Args:
my_file: an open file object.
max_page_size: an integer
Yields:
strings
"""
... | def file_page_generator(my_file, max_page_size=2**28):
"""Read wikipedia pages from a history dump.
Since some pages can be terabytes in size (with all the revisions),
we limit page size to max_page_size bytes.
Args:
my_file: an open file object.
max_page_size: an integer
Yields:
strings
"""
... | [
"Read",
"wikipedia",
"pages",
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"a",
"history",
"dump",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L58-L99 | [
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... | 272500b6efe353aeb638d2745ed56e519462ca31 |
train | get_title | Extract the title from a page.
Args:
page: a string
Returns:
a string | tensor2tensor/data_generators/wiki_revision_utils.py | def get_title(page):
"""Extract the title from a page.
Args:
page: a string
Returns:
a string
"""
start_pos = page.find("<title>")
end_pos = page.find("</title>")
assert start_pos != -1
assert end_pos != -1
start_pos += len("<title>")
return text_encoder.to_unicode_utf8(page[start_pos:end_p... | def get_title(page):
"""Extract the title from a page.
Args:
page: a string
Returns:
a string
"""
start_pos = page.find("<title>")
end_pos = page.find("</title>")
assert start_pos != -1
assert end_pos != -1
start_pos += len("<title>")
return text_encoder.to_unicode_utf8(page[start_pos:end_p... | [
"Extract",
"the",
"title",
"from",
"a",
"page",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L102-L115 | [
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train | get_id | Extract the id from a page.
Args:
page: a string
Returns:
an integer | tensor2tensor/data_generators/wiki_revision_utils.py | def get_id(page):
"""Extract the id from a page.
Args:
page: a string
Returns:
an integer
"""
start_pos = page.find("<id>")
end_pos = page.find("</id>")
assert start_pos != -1
assert end_pos != -1
start_pos += len("<id>")
return int(page[start_pos:end_pos]) | def get_id(page):
"""Extract the id from a page.
Args:
page: a string
Returns:
an integer
"""
start_pos = page.find("<id>")
end_pos = page.find("</id>")
assert start_pos != -1
assert end_pos != -1
start_pos += len("<id>")
return int(page[start_pos:end_pos]) | [
"Extract",
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"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L118-L131 | [
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... | 272500b6efe353aeb638d2745ed56e519462ca31 |
train | get_revisions | Extract the revisions of a page.
Args:
page: a string
Returns:
a list of strings | tensor2tensor/data_generators/wiki_revision_utils.py | def get_revisions(page):
"""Extract the revisions of a page.
Args:
page: a string
Returns:
a list of strings
"""
start_string = " <revision>\n"
end_string = " </revision>\n"
ret = []
current_pos = 0
while True:
start_pos = page.find(start_string, current_pos)
if start_pos == -1:... | def get_revisions(page):
"""Extract the revisions of a page.
Args:
page: a string
Returns:
a list of strings
"""
start_string = " <revision>\n"
end_string = " </revision>\n"
ret = []
current_pos = 0
while True:
start_pos = page.find(start_string, current_pos)
if start_pos == -1:... | [
"Extract",
"the",
"revisions",
"of",
"a",
"page",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L134-L154 | [
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train | parse_page | Create a dictionary with title, id, and list of revisions.
The dictionary contains:
"title": a string
"id": an integer
"revisions": a list of strings
Args:
raw_page: a string
Returns:
a dictionary, or None in the case of an error. | tensor2tensor/data_generators/wiki_revision_utils.py | def parse_page(raw_page):
"""Create a dictionary with title, id, and list of revisions.
The dictionary contains:
"title": a string
"id": an integer
"revisions": a list of strings
Args:
raw_page: a string
Returns:
a dictionary, or None in the case of an error.
"""
ret = {"title": get_title(r... | def parse_page(raw_page):
"""Create a dictionary with title, id, and list of revisions.
The dictionary contains:
"title": a string
"id": an integer
"revisions": a list of strings
Args:
raw_page: a string
Returns:
a dictionary, or None in the case of an error.
"""
ret = {"title": get_title(r... | [
"Create",
"a",
"dictionary",
"with",
"title",
"id",
"and",
"list",
"of",
"revisions",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L157-L175 | [
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"... | 272500b6efe353aeb638d2745ed56e519462ca31 |
train | maybe_copy_file_to_directory | Copy a file to a directory if it is not already there.
Returns the target filepath.
Args:
source_filepath: a string
target_directory: a string
Returns:
a string | tensor2tensor/data_generators/wiki_revision_utils.py | def maybe_copy_file_to_directory(source_filepath, target_directory):
"""Copy a file to a directory if it is not already there.
Returns the target filepath.
Args:
source_filepath: a string
target_directory: a string
Returns:
a string
"""
if not tf.gfile.Exists(target_directory):
tf.logging... | def maybe_copy_file_to_directory(source_filepath, target_directory):
"""Copy a file to a directory if it is not already there.
Returns the target filepath.
Args:
source_filepath: a string
target_directory: a string
Returns:
a string
"""
if not tf.gfile.Exists(target_directory):
tf.logging... | [
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"a",
"file",
"to",
"a",
"directory",
"if",
"it",
"is",
"not",
"already",
"there",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L178-L203 | [
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"%",
"target... | 272500b6efe353aeb638d2745ed56e519462ca31 |
train | corpus_page_generator | Generate pages from a list of .7z encoded history dumps.
Args:
corpus_files: a list of strings
tmp_dir: a string
max_page_size_exp: an integer
Yields:
strings | tensor2tensor/data_generators/wiki_revision_utils.py | def corpus_page_generator(corpus_files, tmp_dir, max_page_size_exp):
"""Generate pages from a list of .7z encoded history dumps.
Args:
corpus_files: a list of strings
tmp_dir: a string
max_page_size_exp: an integer
Yields:
strings
"""
for remote_filepath in corpus_files:
filepath = mayb... | def corpus_page_generator(corpus_files, tmp_dir, max_page_size_exp):
"""Generate pages from a list of .7z encoded history dumps.
Args:
corpus_files: a list of strings
tmp_dir: a string
max_page_size_exp: an integer
Yields:
strings
"""
for remote_filepath in corpus_files:
filepath = mayb... | [
"Generate",
"pages",
"from",
"a",
"list",
"of",
".",
"7z",
"encoded",
"history",
"dumps",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L206-L228 | [
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train | get_text | Extract the text from a revision.
Args:
revision: a string
strip: a boolean
Returns:
a string | tensor2tensor/data_generators/wiki_revision_utils.py | def get_text(revision, strip=True):
"""Extract the text from a revision.
Args:
revision: a string
strip: a boolean
Returns:
a string
"""
# text start tag looks like "<text ..otherstuff>"
start_pos = revision.find("<text")
assert start_pos != -1
end_tag_pos = revision.find(">", start_pos)
... | def get_text(revision, strip=True):
"""Extract the text from a revision.
Args:
revision: a string
strip: a boolean
Returns:
a string
"""
# text start tag looks like "<text ..otherstuff>"
start_pos = revision.find("<text")
assert start_pos != -1
end_tag_pos = revision.find(">", start_pos)
... | [
"Extract",
"the",
"text",
"from",
"a",
"revision",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L231-L255 | [
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train | _remove_curly_braces | Remove everything in curly braces.
Curly braces may be nested, so we keep track of depth.
Args:
text: a string
Returns:
a string | tensor2tensor/data_generators/wiki_revision_utils.py | def _remove_curly_braces(text):
"""Remove everything in curly braces.
Curly braces may be nested, so we keep track of depth.
Args:
text: a string
Returns:
a string
"""
current_pos = 0
depth = 0
ret = ""
for match in re.finditer("[{}]", text):
if depth == 0:
ret += text[current_pos:... | def _remove_curly_braces(text):
"""Remove everything in curly braces.
Curly braces may be nested, so we keep track of depth.
Args:
text: a string
Returns:
a string
"""
current_pos = 0
depth = 0
ret = ""
for match in re.finditer("[{}]", text):
if depth == 0:
ret += text[current_pos:... | [
"Remove",
"everything",
"in",
"curly",
"braces",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/data_generators/wiki_revision_utils.py#L316-L340 | [
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"... | 272500b6efe353aeb638d2745ed56e519462ca31 |
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