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train | T2TModel._beam_decode_slow | Slow version of Beam search decoding.
Quadratic time in decode_length.
Args:
features: an map of string to `Tensor`
decode_length: an integer. How many additional timesteps to decode.
beam_size: number of beams.
top_beams: an integer. How many of the beams to return.
alpha: Floa... | tensor2tensor/utils/t2t_model.py | def _beam_decode_slow(self, features, decode_length, beam_size, top_beams,
alpha, use_tpu=False):
"""Slow version of Beam search decoding.
Quadratic time in decode_length.
Args:
features: an map of string to `Tensor`
decode_length: an integer. How many additional times... | def _beam_decode_slow(self, features, decode_length, beam_size, top_beams,
alpha, use_tpu=False):
"""Slow version of Beam search decoding.
Quadratic time in decode_length.
Args:
features: an map of string to `Tensor`
decode_length: an integer. How many additional times... | [
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train | T2TModel._greedy_infer | A greedy inference method.
Models should ideally implement a more efficient version of this function.
Args:
features: an map of string to `Tensor`
decode_length: an integer. How many additional timesteps to decode.
use_tpu: A bool, whether to build the inference graph for TPU.
Returns:... | tensor2tensor/utils/t2t_model.py | def _greedy_infer(self, features, decode_length, use_tpu=False):
"""A greedy inference method.
Models should ideally implement a more efficient version of this function.
Args:
features: an map of string to `Tensor`
decode_length: an integer. How many additional timesteps to decode.
use_... | def _greedy_infer(self, features, decode_length, use_tpu=False):
"""A greedy inference method.
Models should ideally implement a more efficient version of this function.
Args:
features: an map of string to `Tensor`
decode_length: an integer. How many additional timesteps to decode.
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train | T2TModel._slow_greedy_infer_tpu | A slow greedy inference method on TPU.
Quadratic time in decode_length.
Args:
features: An map of string to `Tensor`.
decode_length: An integer, how many additional timesteps to decode.
Returns:
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Quadratic time in decode_length.
Args:
features: An map of string to `Tensor`.
decode_length: An integer, how many additional timesteps to decode.
Returns:
A dict of decoding results... | def _slow_greedy_infer_tpu(self, features, decode_length):
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Quadratic time in decode_length.
Args:
features: An map of string to `Tensor`.
decode_length: An integer, how many additional timesteps to decode.
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train | T2TModel.sample | Run the model and extract samples.
Args:
features: an map of string to `Tensor`.
Returns:
samples: an integer `Tensor`.
logits: a list of `Tensor`s, one per datashard.
losses: a dictionary: {loss-name (string): floating point `Scalar`}. | tensor2tensor/utils/t2t_model.py | def sample(self, features):
"""Run the model and extract samples.
Args:
features: an map of string to `Tensor`.
Returns:
samples: an integer `Tensor`.
logits: a list of `Tensor`s, one per datashard.
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"""Run the model and extract samples.
Args:
features: an map of string to `Tensor`.
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samples: an integer `Tensor`.
logits: a list of `Tensor`s, one per datashard.
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train | T2TModel.estimator_model_fn | Model fn for Estimator.
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hparams: HParams, model hyperparameters
features: dict<str name, Tensor feature>
labels: Tensor
mode: tf.estimator.ModeKeys
config: RunConfig, possibly with data_parallelism attribute
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train | T2TModel.estimator_spec_train | Constructs `tf.estimator.EstimatorSpec` for TRAIN (training) mode. | tensor2tensor/utils/t2t_model.py | def estimator_spec_train(self, loss, num_async_replicas=1, use_tpu=False):
"""Constructs `tf.estimator.EstimatorSpec` for TRAIN (training) mode."""
train_op = self.optimize(loss, num_async_replicas=num_async_replicas,
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if use_tpu:
if self._hparams.warm_sta... | def estimator_spec_train(self, loss, num_async_replicas=1, use_tpu=False):
"""Constructs `tf.estimator.EstimatorSpec` for TRAIN (training) mode."""
train_op = self.optimize(loss, num_async_replicas=num_async_replicas,
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train | T2TModel.estimator_spec_eval | Constructs `tf.estimator.EstimatorSpec` for EVAL (evaluation) mode. | tensor2tensor/utils/t2t_model.py | def estimator_spec_eval(self, features, logits, labels, loss, losses_dict):
"""Constructs `tf.estimator.EstimatorSpec` for EVAL (evaluation) mode."""
del losses_dict
hparams = self.hparams
if not hasattr(hparams, "problem"):
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p... | def estimator_spec_eval(self, features, logits, labels, loss, losses_dict):
"""Constructs `tf.estimator.EstimatorSpec` for EVAL (evaluation) mode."""
del losses_dict
hparams = self.hparams
if not hasattr(hparams, "problem"):
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train | T2TModel.estimator_spec_predict | Constructs `tf.estimator.EstimatorSpec` for PREDICT (inference) mode. | tensor2tensor/utils/t2t_model.py | def estimator_spec_predict(self, features, use_tpu=False):
"""Constructs `tf.estimator.EstimatorSpec` for PREDICT (inference) mode."""
decode_hparams = self._decode_hparams
top_beams = decode_hparams.beam_size if decode_hparams.return_beams else 1
infer_out = self.infer(
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beam_s... | def estimator_spec_predict(self, features, use_tpu=False):
"""Constructs `tf.estimator.EstimatorSpec` for PREDICT (inference) mode."""
decode_hparams = self._decode_hparams
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train | T2TModel._summarize_losses | Adds `tf.summary`s to all terms in the losses dictionary. | tensor2tensor/utils/t2t_model.py | def _summarize_losses(self, losses_dict):
"""Adds `tf.summary`s to all terms in the losses dictionary."""
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"""Adds `tf.summary`s to all terms in the losses dictionary."""
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train | T2TModel.maybe_scheduled_sampling | Scheduled sampling.
Performs forward inference again with "targets" feature replaced with values
sampled from the model.
This is the identity unless self.hparams.scheduled_sampling_prob > 0
(default).
**WARNING**: This is not a faithful implementation of scheduled sampling.
This implementatio... | tensor2tensor/utils/t2t_model.py | def maybe_scheduled_sampling(self, features, logits, losses):
"""Scheduled sampling.
Performs forward inference again with "targets" feature replaced with values
sampled from the model.
This is the identity unless self.hparams.scheduled_sampling_prob > 0
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**WARNING**: This is not a ... | def maybe_scheduled_sampling(self, features, logits, losses):
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Performs forward inference again with "targets" feature replaced with values
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train | attention_lm_moe_prepare_decoder | Prepare one shard of the model for the decoder.
Args:
targets: a Tensor.
hparams: run hyperparameters
Returns:
decoder_input: a Tensor, bottom of decoder stack
decoder_self_attention_bias: a Tensor, containing large negative values
to implement masked attention and possibly biases for diagonal... | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_prepare_decoder(targets, hparams):
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Args:
targets: a Tensor.
hparams: run hyperparameters
Returns:
decoder_input: a Tensor, bottom of decoder stack
decoder_self_attention_bias: a Tensor, containing large negative values
t... | def attention_lm_moe_prepare_decoder(targets, hparams):
"""Prepare one shard of the model for the decoder.
Args:
targets: a Tensor.
hparams: run hyperparameters
Returns:
decoder_input: a Tensor, bottom of decoder stack
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train | get_batch_coordinate | Return a flat int32 tensor of shape [1, batch_size*length, 1]. | tensor2tensor/models/research/attention_lm_moe.py | def get_batch_coordinate(x, axis=0):
"""Return a flat int32 tensor of shape [1, batch_size*length, 1]."""
# Compute the batch coordinate before flattening all batches
batch_coordinate = tf.expand_dims(
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return batch_coordinate | def get_batch_coordinate(x, axis=0):
"""Return a flat int32 tensor of shape [1, batch_size*length, 1]."""
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batch_coordinate = tf.expand_dims(
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train | expand_batch_coordinates | Duplicate elements of bc by length_factor.
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bc (tf.Tensor): int32 tensor of shape [1, length, 1]
length_factor (int):
Returns:
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train | remove_pad | Remove padding by concatenating all dimension into one.
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x (tf.Tensor): input of shape [batch_size, length, depth]
pad_remover (obj): a PadRemover object
mode (ModeKeys): infer, train or eval. If inference, the padding remover is
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Args:
x (tf.Tensor): input of shape [batch_size, length, depth]
pad_remover (obj): a PadRemover object
mode (ModeKeys): infer, train or eval. If inference, the padding remover is
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Return... | def remove_pad(x, pad_remover, mode):
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Args:
x (tf.Tensor): input of shape [batch_size, length, depth]
pad_remover (obj): a PadRemover object
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train | attention_lm_moe_base | Set of hyperparameters.
suitable for 1 gpu.
on lm1b_32k:
~229M params
0.9 steps/sec on [GeForce GTX TITAN X]
Returns:
a hparams object | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_base():
"""Set of hyperparameters.
suitable for 1 gpu.
on lm1b_32k:
~229M params
0.9 steps/sec on [GeForce GTX TITAN X]
Returns:
a hparams object
"""
hparams = common_hparams.basic_params1()
hparams.hidden_size = 1024
hparams.batch_size = 8192
hparams.max_length =... | def attention_lm_moe_base():
"""Set of hyperparameters.
suitable for 1 gpu.
on lm1b_32k:
~229M params
0.9 steps/sec on [GeForce GTX TITAN X]
Returns:
a hparams object
"""
hparams = common_hparams.basic_params1()
hparams.hidden_size = 1024
hparams.batch_size = 8192
hparams.max_length =... | [
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train | attention_lm_moe_base_long_seq | Hyper parameters specifics for long sequence generation. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_base_long_seq():
"""Hyper parameters specifics for long sequence generation."""
hparams = attention_lm_moe_base()
hparams.max_length = 0 # max_length == batch_size
hparams.eval_drop_long_sequences = True
hparams.min_length_bucket = 256 # Avoid cyclic problems for big batches
hparams.... | def attention_lm_moe_base_long_seq():
"""Hyper parameters specifics for long sequence generation."""
hparams = attention_lm_moe_base()
hparams.max_length = 0 # max_length == batch_size
hparams.eval_drop_long_sequences = True
hparams.min_length_bucket = 256 # Avoid cyclic problems for big batches
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train | attention_lm_moe_base_ae | Base model with attention expert. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_base_ae():
"""Base model with attention expert."""
hparams = attention_lm_moe_base_long_seq()
hparams.attention_type = AttentionType.LOCAL_EXPERTS
hparams.learning_rate = 0.05
hparams.learning_rate_warmup_steps = 10000
# According to noam, ("n", "da") seems better for harder-to-learn m... | def attention_lm_moe_base_ae():
"""Base model with attention expert."""
hparams = attention_lm_moe_base_long_seq()
hparams.attention_type = AttentionType.LOCAL_EXPERTS
hparams.learning_rate = 0.05
hparams.learning_rate_warmup_steps = 10000
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train | attention_lm_ae_extended | Experiment with the exp_factor params. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_ae_extended():
"""Experiment with the exp_factor params."""
hparams = attention_lm_moe_base_long_seq()
hparams.attention_layers = "eeee"
hparams.attention_local = True
# hparams.factored_logits=1 # Necessary when the number of expert grow bigger
hparams.attention_moe_k = 2
hparams.attent... | def attention_lm_ae_extended():
"""Experiment with the exp_factor params."""
hparams = attention_lm_moe_base_long_seq()
hparams.attention_layers = "eeee"
hparams.attention_local = True
# hparams.factored_logits=1 # Necessary when the number of expert grow bigger
hparams.attention_moe_k = 2
hparams.attent... | [
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train | attention_lm_moe_base_memeff | Base model with attention expert. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_base_memeff():
"""Base model with attention expert."""
hparams = attention_lm_moe_base_long_seq()
hparams.use_sepconv = False
hparams.diet_experts = True
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
hparams.layer_prepostprocess_dropout = 0.0
hpa... | def attention_lm_moe_base_memeff():
"""Base model with attention expert."""
hparams = attention_lm_moe_base_long_seq()
hparams.use_sepconv = False
hparams.diet_experts = True
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
hparams.layer_prepostprocess_dropout = 0.0
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train | attention_lm_moe_small | Cheap model for single-gpu training.
on lm1b_32k:
~312M params
1.6 steps/sec on [GeForce GTX TITAN X]
After 50K steps on 8 GPUs (synchronous):
eval_log_ppl_per_token = 3.31
Returns:
an hparams object. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_small():
"""Cheap model for single-gpu training.
on lm1b_32k:
~312M params
1.6 steps/sec on [GeForce GTX TITAN X]
After 50K steps on 8 GPUs (synchronous):
eval_log_ppl_per_token = 3.31
Returns:
an hparams object.
"""
hparams = attention_lm_moe_base()
hparam... | def attention_lm_moe_small():
"""Cheap model for single-gpu training.
on lm1b_32k:
~312M params
1.6 steps/sec on [GeForce GTX TITAN X]
After 50K steps on 8 GPUs (synchronous):
eval_log_ppl_per_token = 3.31
Returns:
an hparams object.
"""
hparams = attention_lm_moe_base()
hparam... | [
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train | attention_lm_attention_moe_tiny | Cheap model for debugging.
Returns:
an hparams object. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_attention_moe_tiny():
"""Cheap model for debugging.
Returns:
an hparams object.
"""
hparams = attention_lm_moe_small()
hparams.moe_layers = ""
hparams.attention_num_experts = 128
hparams.filter_size = 8192
hparams.attention_type = AttentionType.LOCAL_EXPERTS
return hparams | def attention_lm_attention_moe_tiny():
"""Cheap model for debugging.
Returns:
an hparams object.
"""
hparams = attention_lm_moe_small()
hparams.moe_layers = ""
hparams.attention_num_experts = 128
hparams.filter_size = 8192
hparams.attention_type = AttentionType.LOCAL_EXPERTS
return hparams | [
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train | attention_lm_moe_large | Large model for distributed training.
Over 1B parameters, so requires multi-gpu training due to memory
requirements.
on lm1b_32k:
After 45K steps on 8 GPUs (synchronous):
eval_log_ppl_per_token = 3.18
eval_ppl_per_word = exp(1.107893 * eval_log_ppl_per_token) = 33.9
Returns:
an hpar... | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_large():
"""Large model for distributed training.
Over 1B parameters, so requires multi-gpu training due to memory
requirements.
on lm1b_32k:
After 45K steps on 8 GPUs (synchronous):
eval_log_ppl_per_token = 3.18
eval_ppl_per_word = exp(1.107893 * eval_log_ppl_per_to... | def attention_lm_moe_large():
"""Large model for distributed training.
Over 1B parameters, so requires multi-gpu training due to memory
requirements.
on lm1b_32k:
After 45K steps on 8 GPUs (synchronous):
eval_log_ppl_per_token = 3.18
eval_ppl_per_word = exp(1.107893 * eval_log_ppl_per_to... | [
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train | attention_lm_moe_memory_efficient | Memory-efficient version. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_memory_efficient():
"""Memory-efficient version."""
hparams = attention_lm_moe_large()
hparams.diet_experts = True
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
hparams.layer_prepostprocess_dropout = 0.0
hparams.memory_efficient_ffn = True
hparams... | def attention_lm_moe_memory_efficient():
"""Memory-efficient version."""
hparams = attention_lm_moe_large()
hparams.diet_experts = True
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
hparams.layer_prepostprocess_dropout = 0.0
hparams.memory_efficient_ffn = True
hparams... | [
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train | attention_lm_moe_24b_diet | Unnecessarily large model with 24B params - because we can. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_24b_diet():
"""Unnecessarily large model with 24B params - because we can."""
hparams = attention_lm_moe_large_diet()
hparams.moe_hidden_sizes = "12288"
hparams.moe_num_experts = 1024
hparams.batch_size = 4096
return hparams | def attention_lm_moe_24b_diet():
"""Unnecessarily large model with 24B params - because we can."""
hparams = attention_lm_moe_large_diet()
hparams.moe_hidden_sizes = "12288"
hparams.moe_num_experts = 1024
hparams.batch_size = 4096
return hparams | [
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train | attention_lm_moe_translation | Version to use for seq2seq. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_translation():
"""Version to use for seq2seq."""
hparams = attention_lm_moe_base()
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
hparams.learning_rate = 0.4
hparams.prepend_mode = "prepend_inputs_masked_attention"
hparams.max_length = 512
hparams.... | def attention_lm_moe_translation():
"""Version to use for seq2seq."""
hparams = attention_lm_moe_base()
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
hparams.learning_rate = 0.4
hparams.prepend_mode = "prepend_inputs_masked_attention"
hparams.max_length = 512
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train | attention_lm_moe_unscramble_base | Version to use with languagemodel_wiki_scramble1k50. | tensor2tensor/models/research/attention_lm_moe.py | def attention_lm_moe_unscramble_base():
"""Version to use with languagemodel_wiki_scramble1k50."""
hparams = attention_lm_no_moe_small()
hparams.use_inputs = True
hparams.min_length_bucket = 1024
hparams.max_length = 1024
hparams.batch_size = 5000
hparams.layer_prepostprocess_dropout = 0.0
hparams.layer... | def attention_lm_moe_unscramble_base():
"""Version to use with languagemodel_wiki_scramble1k50."""
hparams = attention_lm_no_moe_small()
hparams.use_inputs = True
hparams.min_length_bucket = 1024
hparams.max_length = 1024
hparams.batch_size = 5000
hparams.layer_prepostprocess_dropout = 0.0
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train | audio_bottom | Transform input from data space to model space.
Args:
x: A Tensor with shape [batch, ...]
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
body_input: A Tensor with shape [batch, ?, ?,
model_hparams.hidden_size]. | tensor2tensor/layers/modalities.py | def audio_bottom(x, model_hparams, vocab_size):
"""Transform input from data space to model space.
Args:
x: A Tensor with shape [batch, ...]
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
body_input: A Tensor with shape [batch, ?, ?,
model_hparams.... | def audio_bottom(x, model_hparams, vocab_size):
"""Transform input from data space to model space.
Args:
x: A Tensor with shape [batch, ...]
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
body_input: A Tensor with shape [batch, ?, ?,
model_hparams.... | [
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train | image_targets_bottom | Bottom transformation for target images. | tensor2tensor/layers/modalities.py | def image_targets_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for target images."""
pixel_embedding_size = 64
inputs = x
with tf.variable_scope("image_modality"):
if not tf.executing_eagerly():
tf.summary.image(
"targets_bottom",
common_layers.tpu_safe_image_summ... | def image_targets_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for target images."""
pixel_embedding_size = 64
inputs = x
with tf.variable_scope("image_modality"):
if not tf.executing_eagerly():
tf.summary.image(
"targets_bottom",
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train | _image_channel_compress_bottom | Compresses channel-wise input pixels into whole pixel representions.
Perform conversion of RGB pixel values to a real number in the range -1 to
1. This combines pixel channels to form a representation of shape
[img_len, img_len].
Args:
inputs: Tensor representing RGB pixel intensities as integers, of shap... | tensor2tensor/layers/modalities.py | def _image_channel_compress_bottom(inputs, model_hparams, name="bottom"):
"""Compresses channel-wise input pixels into whole pixel representions.
Perform conversion of RGB pixel values to a real number in the range -1 to
1. This combines pixel channels to form a representation of shape
[img_len, img_len].
A... | def _image_channel_compress_bottom(inputs, model_hparams, name="bottom"):
"""Compresses channel-wise input pixels into whole pixel representions.
Perform conversion of RGB pixel values to a real number in the range -1 to
1. This combines pixel channels to form a representation of shape
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train | image_channel_embeddings_bottom | Bottom transformation for image targets. | tensor2tensor/layers/modalities.py | def image_channel_embeddings_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for image targets."""
del vocab_size # unused arg
inputs = tf.to_int32(x)
io_depth = model_hparams.num_channels
tshape = common_layers.shape_list(inputs)
hidden_size = model_hparams.hidden_size
target_embeddings =... | def image_channel_embeddings_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for image targets."""
del vocab_size # unused arg
inputs = tf.to_int32(x)
io_depth = model_hparams.num_channels
tshape = common_layers.shape_list(inputs)
hidden_size = model_hparams.hidden_size
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train | speech_recognition_bottom | Use batchnorm instead of CMVN and shorten the stft with strided convs.
Args:
x: float32 tensor with shape [batch_size, len, 1, freqs * channels]
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
float32 tensor with shape [batch_size, shorter_len, 1, hidden_si... | tensor2tensor/layers/modalities.py | def speech_recognition_bottom(x, model_hparams, vocab_size):
"""Use batchnorm instead of CMVN and shorten the stft with strided convs.
Args:
x: float32 tensor with shape [batch_size, len, 1, freqs * channels]
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
... | def speech_recognition_bottom(x, model_hparams, vocab_size):
"""Use batchnorm instead of CMVN and shorten the stft with strided convs.
Args:
x: float32 tensor with shape [batch_size, len, 1, freqs * channels]
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
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train | get_weights | Create or get concatenated embedding or softmax variable.
Args:
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
hidden_dim: dim of the variable. Defaults to _model_hparams' hidden_size
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"""Create or get concatenated embedding or softmax variable.
Args:
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
hidden_dim: dim of the variable. Defaults to _model_hparams' hidden_size
Returns:
a lis... | def get_weights(model_hparams, vocab_size, hidden_dim=None):
"""Create or get concatenated embedding or softmax variable.
Args:
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
hidden_dim: dim of the variable. Defaults to _model_hparams' hidden_size
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train | _symbol_bottom_simple | Bottom transformation for symbols. | tensor2tensor/layers/modalities.py | def _symbol_bottom_simple(x, model_hparams, vocab_size, name, reuse):
"""Bottom transformation for symbols."""
with tf.variable_scope(name, reuse=reuse):
# Ensure the inputs are 3-D
if len(x.get_shape()) == 4:
x = tf.squeeze(x, axis=3)
while len(x.get_shape()) < 3:
x = tf.expand_dims(x, axis... | def _symbol_bottom_simple(x, model_hparams, vocab_size, name, reuse):
"""Bottom transformation for symbols."""
with tf.variable_scope(name, reuse=reuse):
# Ensure the inputs are 3-D
if len(x.get_shape()) == 4:
x = tf.squeeze(x, axis=3)
while len(x.get_shape()) < 3:
x = tf.expand_dims(x, axis... | [
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train | symbol_targets_bottom | Bottom transformation for target symbols. | tensor2tensor/layers/modalities.py | def symbol_targets_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for target symbols."""
if (model_hparams.shared_embedding_and_softmax_weights or
model_hparams.get("shared_embedding")):
try:
return _symbol_bottom_simple(
x, model_hparams, vocab_size, "shared", reuse=True)
... | def symbol_targets_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for target symbols."""
if (model_hparams.shared_embedding_and_softmax_weights or
model_hparams.get("shared_embedding")):
try:
return _symbol_bottom_simple(
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train | video_bitwise_bottom | Bottom transformation for embedding video bitwise. | tensor2tensor/layers/modalities.py | def video_bitwise_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for embedding video bitwise."""
pixel_embedding_size = 64
inputs = x
with tf.variable_scope("video_modality_bitwise", reuse=tf.AUTO_REUSE):
common_layers.summarize_video(inputs, "bottom")
# Embed bitwise.
assert vocab_s... | def video_bitwise_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for embedding video bitwise."""
pixel_embedding_size = 64
inputs = x
with tf.variable_scope("video_modality_bitwise", reuse=tf.AUTO_REUSE):
common_layers.summarize_video(inputs, "bottom")
# Embed bitwise.
assert vocab_s... | [
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train | video_pixel_noise_bottom | Bottom transformation for video. | tensor2tensor/layers/modalities.py | def video_pixel_noise_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for video."""
input_noise = getattr(model_hparams, "video_modality_input_noise", 0.25)
inputs = x
if model_hparams.mode == tf.estimator.ModeKeys.TRAIN:
background = tfp.stats.percentile(inputs, 50., axis=[0, 1, 2, 3])
i... | def video_pixel_noise_bottom(x, model_hparams, vocab_size):
"""Bottom transformation for video."""
input_noise = getattr(model_hparams, "video_modality_input_noise", 0.25)
inputs = x
if model_hparams.mode == tf.estimator.ModeKeys.TRAIN:
background = tfp.stats.percentile(inputs, 50., axis=[0, 1, 2, 3])
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train | convert_rgb_to_real | Convert prediction and target from rgb to real. | tensor2tensor/layers/modalities.py | def convert_rgb_to_real(prediction, targets):
"""Convert prediction and target from rgb to real."""
prediction = tf.squeeze(prediction, axis=-1)
prediction = common_layers.convert_rgb_to_real(prediction)
targets = common_layers.convert_rgb_to_real(targets)
return prediction, targets | def convert_rgb_to_real(prediction, targets):
"""Convert prediction and target from rgb to real."""
prediction = tf.squeeze(prediction, axis=-1)
prediction = common_layers.convert_rgb_to_real(prediction)
targets = common_layers.convert_rgb_to_real(targets)
return prediction, targets | [
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train | ctc_symbol_loss | Compute the CTC loss. | tensor2tensor/layers/modalities.py | def ctc_symbol_loss(top_out, targets, model_hparams, vocab_size, weight_fn):
"""Compute the CTC loss."""
del model_hparams, vocab_size # unused arg
logits = top_out
with tf.name_scope("ctc_loss", values=[logits, targets]):
# For CTC we assume targets are 1d, [batch, length, 1, 1] here.
targets_shape = ... | def ctc_symbol_loss(top_out, targets, model_hparams, vocab_size, weight_fn):
"""Compute the CTC loss."""
del model_hparams, vocab_size # unused arg
logits = top_out
with tf.name_scope("ctc_loss", values=[logits, targets]):
# For CTC we assume targets are 1d, [batch, length, 1, 1] here.
targets_shape = ... | [
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train | generic_loss | Compute loss numerator and denominator for one shard of output. | tensor2tensor/layers/modalities.py | def generic_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Compute loss numerator and denominator for one shard of output."""
del vocab_size # unused arg
logits = top_out
logits = common_attention.maybe_upcast(logits, hparams=model_hparams)
cutoff = getattr(model_hparams, "video_modality_l... | def generic_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Compute loss numerator and denominator for one shard of output."""
del vocab_size # unused arg
logits = top_out
logits = common_attention.maybe_upcast(logits, hparams=model_hparams)
cutoff = getattr(model_hparams, "video_modality_l... | [
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train | multi_label_loss | Average loss over the labels. | tensor2tensor/layers/modalities.py | def multi_label_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Average loss over the labels."""
del vocab_size # unused arg
logits = top_out
num_labels = tf.shape(targets)[1]
logits = tf.tile(logits, [1, num_labels, 1, 1, 1])
xent, weights = common_layers.padded_cross_entropy(
log... | def multi_label_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Average loss over the labels."""
del vocab_size # unused arg
logits = top_out
num_labels = tf.shape(targets)[1]
logits = tf.tile(logits, [1, num_labels, 1, 1, 1])
xent, weights = common_layers.padded_cross_entropy(
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train | one_hot_class_label_loss | Apply softmax cross-entropy between outputs and targets.
Args:
top_out: logits Tensor with shape [batch, ?, ?, num_classes]
targets: one-hot encoding Tensor with shape [batch, ?, ?, num_classes]
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
weights_fn:
Returns... | tensor2tensor/layers/modalities.py | def one_hot_class_label_loss(top_out,
targets,
model_hparams,
vocab_size,
weights_fn):
"""Apply softmax cross-entropy between outputs and targets.
Args:
top_out: logits Tensor with shape [batch, ... | def one_hot_class_label_loss(top_out,
targets,
model_hparams,
vocab_size,
weights_fn):
"""Apply softmax cross-entropy between outputs and targets.
Args:
top_out: logits Tensor with shape [batch, ... | [
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train | real_log_poisson_loss | Poisson loss for real. | tensor2tensor/layers/modalities.py | def real_log_poisson_loss(top_out,
targets,
model_hparams,
vocab_size,
weights_fn):
"""Poisson loss for real."""
del model_hparams, vocab_size # unused arg
predictions = top_out
if (len(common_layers.shape_l... | def real_log_poisson_loss(top_out,
targets,
model_hparams,
vocab_size,
weights_fn):
"""Poisson loss for real."""
del model_hparams, vocab_size # unused arg
predictions = top_out
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train | sigmoid_class_label_loss | Loss for class label. | tensor2tensor/layers/modalities.py | def sigmoid_class_label_loss(top_out,
targets,
model_hparams,
vocab_size,
weights_fn):
"""Loss for class label."""
# Expect inputs of size [batch-size, timesteps, 1, num-classes], where the
# last d... | def sigmoid_class_label_loss(top_out,
targets,
model_hparams,
vocab_size,
weights_fn):
"""Loss for class label."""
# Expect inputs of size [batch-size, timesteps, 1, num-classes], where the
# last d... | [
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... | 272500b6efe353aeb638d2745ed56e519462ca31 |
train | video_loss | Compute loss numerator and denominator for one shard of output. | tensor2tensor/layers/modalities.py | def video_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Compute loss numerator and denominator for one shard of output."""
del vocab_size # unused arg
logits = top_out
logits = tf.reshape(logits, [-1] + common_layers.shape_list(logits)[2:])
targets = tf.reshape(targets, [-1] + common_laye... | def video_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Compute loss numerator and denominator for one shard of output."""
del vocab_size # unused arg
logits = top_out
logits = tf.reshape(logits, [-1] + common_layers.shape_list(logits)[2:])
targets = tf.reshape(targets, [-1] + common_laye... | [
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train | video_l1_loss | Compute loss numerator and denominator for one shard of output. | tensor2tensor/layers/modalities.py | def video_l1_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Compute loss numerator and denominator for one shard of output."""
del vocab_size # unused arg
logits = top_out
logits = tf.reshape(logits, [-1] + common_layers.shape_list(logits)[2:-1])
targets = tf.reshape(targets, [-1] + common... | def video_l1_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Compute loss numerator and denominator for one shard of output."""
del vocab_size # unused arg
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train | video_l2_loss | Compute loss numerator and denominator for one shard of output. | tensor2tensor/layers/modalities.py | def video_l2_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Compute loss numerator and denominator for one shard of output."""
del vocab_size # unused arg
logits = top_out
logits = tf.reshape(logits, [-1] + common_layers.shape_list(logits)[2:-1])
targets = tf.reshape(targets, [-1] + common... | def video_l2_loss(top_out, targets, model_hparams, vocab_size, weights_fn):
"""Compute loss numerator and denominator for one shard of output."""
del vocab_size # unused arg
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train | class_label_top | Transform inputs from model space to target space.
Average over inner dims and a linear layer to logits.
Args:
body_output: A Tensor with shape [batch, ?, ?, body_output_size].
targets:
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
a Tensors, each ... | tensor2tensor/layers/modalities.py | def class_label_top(body_output, targets, model_hparams, vocab_size):
"""Transform inputs from model space to target space.
Average over inner dims and a linear layer to logits.
Args:
body_output: A Tensor with shape [batch, ?, ?, body_output_size].
targets:
model_hparams: HParams, model hyperparmet... | def class_label_top(body_output, targets, model_hparams, vocab_size):
"""Transform inputs from model space to target space.
Average over inner dims and a linear layer to logits.
Args:
body_output: A Tensor with shape [batch, ?, ?, body_output_size].
targets:
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train | image_top | Top transformation for images. | tensor2tensor/layers/modalities.py | def image_top(body_output, targets, model_hparams, vocab_size):
"""Top transformation for images."""
del targets # unused arg
# TODO(lukaszkaiser): is this a universal enough way to get channels?
num_channels = model_hparams.problem.num_channels
with tf.variable_scope("rgb_softmax"):
body_output_shape = ... | def image_top(body_output, targets, model_hparams, vocab_size):
"""Top transformation for images."""
del targets # unused arg
# TODO(lukaszkaiser): is this a universal enough way to get channels?
num_channels = model_hparams.problem.num_channels
with tf.variable_scope("rgb_softmax"):
body_output_shape = ... | [
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train | image_channel_compress_top | Transforms body output to return logits.
Args:
body_output: Tensor of shape [batch, img_len, img_len, depth].
targets:
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
Tensor of shape [batch, img_len, img_len, channels, vocab_size]. | tensor2tensor/layers/modalities.py | def image_channel_compress_top(body_output, targets, model_hparams, vocab_size):
"""Transforms body output to return logits.
Args:
body_output: Tensor of shape [batch, img_len, img_len, depth].
targets:
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
... | def image_channel_compress_top(body_output, targets, model_hparams, vocab_size):
"""Transforms body output to return logits.
Args:
body_output: Tensor of shape [batch, img_len, img_len, depth].
targets:
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
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train | image_channel_embeddings_top | Top transformation for images. | tensor2tensor/layers/modalities.py | def image_channel_embeddings_top(body_output,
targets,
model_hparams,
vocab_size):
"""Top transformation for images."""
del targets # unused arg
with tf.variable_scope("image_channel_embeddings_bottom"):
img_le... | def image_channel_embeddings_top(body_output,
targets,
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vocab_size):
"""Top transformation for images."""
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train | softmax_average_pooling_class_label_top | Loss for class label. | tensor2tensor/layers/modalities.py | def softmax_average_pooling_class_label_top(body_output,
targets,
model_hparams,
vocab_size):
"""Loss for class label."""
del targets # unused arg
with tf.variable_scope(
"sof... | def softmax_average_pooling_class_label_top(body_output,
targets,
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vocab_size):
"""Loss for class label."""
del targets # unused arg
with tf.variable_scope(
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train | softmax_last_timestep_class_label_top | Loss for class label. | tensor2tensor/layers/modalities.py | def softmax_last_timestep_class_label_top(body_output,
targets,
model_hparams,
vocab_size):
"""Loss for class label."""
del targets # unused arg
with tf.variable_scope(
"softmax_las... | def softmax_last_timestep_class_label_top(body_output,
targets,
model_hparams,
vocab_size):
"""Loss for class label."""
del targets # unused arg
with tf.variable_scope(
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train | softmax_max_pooling_class_label_top | Loss for class label. | tensor2tensor/layers/modalities.py | def softmax_max_pooling_class_label_top(body_output,
targets,
model_hparams,
vocab_size):
"""Loss for class label."""
del targets # unused arg
with tf.variable_scope(
"softmax_max_pooling... | def softmax_max_pooling_class_label_top(body_output,
targets,
model_hparams,
vocab_size):
"""Loss for class label."""
del targets # unused arg
with tf.variable_scope(
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train | symbol_top | Generate logits.
Args:
body_output: A Tensor with shape
[batch, p0, p1, model_hparams.hidden_size].
targets: Unused.
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
logits: A Tensor with shape [batch, p0, p1, ?, vocab_size]. | tensor2tensor/layers/modalities.py | def symbol_top(body_output, targets, model_hparams, vocab_size):
"""Generate logits.
Args:
body_output: A Tensor with shape
[batch, p0, p1, model_hparams.hidden_size].
targets: Unused.
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
logits: A Te... | def symbol_top(body_output, targets, model_hparams, vocab_size):
"""Generate logits.
Args:
body_output: A Tensor with shape
[batch, p0, p1, model_hparams.hidden_size].
targets: Unused.
model_hparams: HParams, model hyperparmeters.
vocab_size: int, vocabulary size.
Returns:
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train | video_top | Top transformation for video. | tensor2tensor/layers/modalities.py | def video_top(body_output, targets, model_hparams, vocab_size):
"""Top transformation for video."""
del targets # unused arg
num_channels = model_hparams.problem.num_channels
shape = common_layers.shape_list(body_output)
reshape_shape = shape[:-1] + [num_channels, vocab_size]
res = tf.reshape(body_output, ... | def video_top(body_output, targets, model_hparams, vocab_size):
"""Top transformation for video."""
del targets # unused arg
num_channels = model_hparams.problem.num_channels
shape = common_layers.shape_list(body_output)
reshape_shape = shape[:-1] + [num_channels, vocab_size]
res = tf.reshape(body_output, ... | [
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train | video_l1_top | Top transformation for video. | tensor2tensor/layers/modalities.py | def video_l1_top(body_output, targets, model_hparams, vocab_size):
"""Top transformation for video."""
del targets, vocab_size # unused arg
num_channels = model_hparams.problem.num_channels
num_frames = model_hparams.video_num_target_frames
with tf.variable_scope("rgb"):
body_output_shape = common_layers... | def video_l1_top(body_output, targets, model_hparams, vocab_size):
"""Top transformation for video."""
del targets, vocab_size # unused arg
num_channels = model_hparams.problem.num_channels
num_frames = model_hparams.video_num_target_frames
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body_output_shape = common_layers... | [
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train | get_bottom | Gets default bottom transformation; if none available, return value. | tensor2tensor/layers/modalities.py | def get_bottom(modality_type, value=None):
"""Gets default bottom transformation; if none available, return value."""
if modality_type == ModalityType.AUDIO:
return audio_bottom
elif modality_type == ModalityType.AUDIO_SPECTRAL:
return audio_spectral_bottom
elif modality_type in (ModalityType.CLASS_LABE... | def get_bottom(modality_type, value=None):
"""Gets default bottom transformation; if none available, return value."""
if modality_type == ModalityType.AUDIO:
return audio_bottom
elif modality_type == ModalityType.AUDIO_SPECTRAL:
return audio_spectral_bottom
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train | get_loss | Gets default loss transformation; if none available, return value. | tensor2tensor/layers/modalities.py | def get_loss(modality_type, value=None):
"""Gets default loss transformation; if none available, return value."""
if modality_type in (ModalityType.AUDIO,
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train | get_name | Gets default name for transformations; if none available, return value. | tensor2tensor/layers/modalities.py | def get_name(modality_type, value=None):
"""Gets default name for transformations; if none available, return value."""
# For legacy reasons, modalities vary in their naming scheme. Future plans are
# to remove any need for get_name. We do not recommend using it.
if modality_type == ModalityType.AUDIO:
retur... | def get_name(modality_type, value=None):
"""Gets default name for transformations; if none available, return value."""
# For legacy reasons, modalities vary in their naming scheme. Future plans are
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train | get_targets_bottom | Gets default bottom transformation for targets; if none, return value. | tensor2tensor/layers/modalities.py | def get_targets_bottom(modality_type, value=None):
"""Gets default bottom transformation for targets; if none, return value."""
if modality_type == ModalityType.AUDIO:
return make_targets_bottom(audio_bottom)
elif modality_type == ModalityType.AUDIO_SPECTRAL:
return make_targets_bottom(audio_spectral_bott... | def get_targets_bottom(modality_type, value=None):
"""Gets default bottom transformation for targets; if none, return value."""
if modality_type == ModalityType.AUDIO:
return make_targets_bottom(audio_bottom)
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train | get_top | Gets default top transformation; if none available, return value. | tensor2tensor/layers/modalities.py | def get_top(modality_type, value=None):
"""Gets default top transformation; if none available, return value."""
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"""Gets default top transformation; if none available, return value."""
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train | get_weights_fn | Gets default weights function; if none available, return value. | tensor2tensor/layers/modalities.py | def get_weights_fn(modality_type, value=None):
"""Gets default weights function; if none available, return value."""
if modality_type in (ModalityType.CTC_SYMBOL,
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train | create_combination | Generates all possible pair combinations for the input list of sentences.
For example:
input = ["paraphrase1", "paraphrase2", "paraphrase3"]
output = [("paraphrase1", "paraphrase2"),
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list_of_sentences: the list... | tensor2tensor/data_generators/paraphrase_ms_coco.py | def create_combination(list_of_sentences):
"""Generates all possible pair combinations for the input list of sentences.
For example:
input = ["paraphrase1", "paraphrase2", "paraphrase3"]
output = [("paraphrase1", "paraphrase2"),
("paraphrase1", "paraphrase3"),
("paraphrase2", "paraphr... | def create_combination(list_of_sentences):
"""Generates all possible pair combinations for the input list of sentences.
For example:
input = ["paraphrase1", "paraphrase2", "paraphrase3"]
output = [("paraphrase1", "paraphrase2"),
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train | image_transformer2d_base | Set of hyperparameters. | tensor2tensor/models/image_transformer_2d.py | def image_transformer2d_base():
"""Set of hyperparameters."""
hparams = common_hparams.basic_params1()
hparams.hidden_size = 512
hparams.batch_size = 1
hparams.max_length = 256
hparams.dropout = 0.0
hparams.clip_grad_norm = 0. # i.e. no gradient clipping
hparams.optimizer_adam_epsilon = 1e-9
hparams.... | def image_transformer2d_base():
"""Set of hyperparameters."""
hparams = common_hparams.basic_params1()
hparams.hidden_size = 512
hparams.batch_size = 1
hparams.max_length = 256
hparams.dropout = 0.0
hparams.clip_grad_norm = 0. # i.e. no gradient clipping
hparams.optimizer_adam_epsilon = 1e-9
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train | imagetransformer2d_base_8l_8_32_big | hparams fo 8 layer big 2d model for cifar 10. | tensor2tensor/models/image_transformer_2d.py | def imagetransformer2d_base_8l_8_32_big():
"""hparams fo 8 layer big 2d model for cifar 10."""
hparams = image_transformer2d_base()
hparams.num_heads = 16
hparams.hidden_size = 1024
hparams.filter_size = 2048
hparams.num_decoder_layers = 8
hparams.batch_size = 1
hparams.layer_prepostprocess_dropout = 0.... | def imagetransformer2d_base_8l_8_32_big():
"""hparams fo 8 layer big 2d model for cifar 10."""
hparams = image_transformer2d_base()
hparams.num_heads = 16
hparams.hidden_size = 1024
hparams.filter_size = 2048
hparams.num_decoder_layers = 8
hparams.batch_size = 1
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train | imagetransformer_base_10l_8h_big_uncond_dr03_dan_64_2d | big 1d model for unconditional generation on imagenet. | tensor2tensor/models/image_transformer_2d.py | def imagetransformer_base_10l_8h_big_uncond_dr03_dan_64_2d():
"""big 1d model for unconditional generation on imagenet."""
hparams = image_transformer2d_base()
hparams.unconditional = True
hparams.hidden_size = 512
hparams.batch_size = 1
hparams.img_len = 64
hparams.num_heads = 8
hparams.filter_size = 2... | def imagetransformer_base_10l_8h_big_uncond_dr03_dan_64_2d():
"""big 1d model for unconditional generation on imagenet."""
hparams = image_transformer2d_base()
hparams.unconditional = True
hparams.hidden_size = 512
hparams.batch_size = 1
hparams.img_len = 64
hparams.num_heads = 8
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train | img2img_transformer2d_base | Base params for img2img 2d attention. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer2d_base():
"""Base params for img2img 2d attention."""
hparams = image_transformer2d_base()
# learning related flags
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
# This version seems to benefit from a higher learning rate.
hparams.learning_rate =... | def img2img_transformer2d_base():
"""Base params for img2img 2d attention."""
hparams = image_transformer2d_base()
# learning related flags
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
# This version seems to benefit from a higher learning rate.
hparams.learning_rate =... | [
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train | img2img_transformer2d_q3 | Current best hparams for local 2d. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer2d_q3():
"""Current best hparams for local 2d."""
hparams = img2img_transformer2d_q1()
hparams.batch_size = 2
hparams.query_shape = (8, 16)
hparams.memory_flange = (8, 32)
return hparams | def img2img_transformer2d_q3():
"""Current best hparams for local 2d."""
hparams = img2img_transformer2d_q1()
hparams.batch_size = 2
hparams.query_shape = (8, 16)
hparams.memory_flange = (8, 32)
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train | img2img_transformer_base | Base params for local1d attention. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer_base():
"""Base params for local1d attention."""
hparams = image_transformer2d_base()
# learning related flags
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
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hparams.learning_rate = 0.2
... | def img2img_transformer_base():
"""Base params for local1d attention."""
hparams = image_transformer2d_base()
# learning related flags
hparams.layer_preprocess_sequence = "n"
hparams.layer_postprocess_sequence = "da"
# This version seems to benefit from a higher learning rate.
hparams.learning_rate = 0.2
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train | img2img_transformer_b3 | Current best hparams for local 1d. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer_b3():
"""Current best hparams for local 1d."""
hparams = img2img_transformer_base()
hparams.batch_size = 2
hparams.layer_preprocess_sequence = "none"
hparams.layer_postprocess_sequence = "dan"
hparams.block_length = 128
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return hparams | def img2img_transformer_b3():
"""Current best hparams for local 1d."""
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hparams.batch_size = 2
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train | img2img_transformer_dilated | Try dilated. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer_dilated():
"""Try dilated."""
hparams = img2img_transformer_base()
hparams.add_hparam("num_memory_blocks", 1)
hparams.num_heads = 8
hparams.attention_key_channels = hparams.attention_value_channels = 0
hparams.hidden_size = 512
hparams.filter_size = 2048
hparams.num_decoder_layer... | def img2img_transformer_dilated():
"""Try dilated."""
hparams = img2img_transformer_base()
hparams.add_hparam("num_memory_blocks", 1)
hparams.num_heads = 8
hparams.attention_key_channels = hparams.attention_value_channels = 0
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hparams.filter_size = 2048
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train | img2img_transformer_base_tpu | Hparams for training img2img_transformer on tpu. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer_base_tpu():
"""Hparams for training img2img_transformer on tpu."""
hparams = img2img_transformer_base()
update_hparams_for_tpu(hparams)
hparams.batch_size = 2
hparams.num_heads = 4 # heads are expensive on tpu
hparams.num_decoder_layers = 8
hparams.num_encoder_layers = 4
hparam... | def img2img_transformer_base_tpu():
"""Hparams for training img2img_transformer on tpu."""
hparams = img2img_transformer_base()
update_hparams_for_tpu(hparams)
hparams.batch_size = 2
hparams.num_heads = 4 # heads are expensive on tpu
hparams.num_decoder_layers = 8
hparams.num_encoder_layers = 4
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train | img2img_transformer2d_n31 | Set of hyperparameters. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer2d_n31():
"""Set of hyperparameters."""
hparams = img2img_transformer2d_base()
hparams.batch_size = 1
hparams.num_encoder_layers = 6
hparams.num_decoder_layers = 12
hparams.num_heads = 8
hparams.query_shape = (16, 32)
hparams.memory_flange = (16, 32)
return hparams | def img2img_transformer2d_n31():
"""Set of hyperparameters."""
hparams = img2img_transformer2d_base()
hparams.batch_size = 1
hparams.num_encoder_layers = 6
hparams.num_decoder_layers = 12
hparams.num_heads = 8
hparams.query_shape = (16, 32)
hparams.memory_flange = (16, 32)
return hparams | [
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train | img2img_transformer2d_n24 | Set of hyperparameters. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer2d_n24():
"""Set of hyperparameters."""
hparams = img2img_transformer2d_base()
hparams.batch_size = 1
hparams.hidden_size = 1024
hparams.filter_size = 2048
hparams.layer_prepostprocess_dropout = 0.2
hparams.num_decoder_layers = 8
hparams.query_shape = (8, 16)
hparams.memory_flan... | def img2img_transformer2d_n24():
"""Set of hyperparameters."""
hparams = img2img_transformer2d_base()
hparams.batch_size = 1
hparams.hidden_size = 1024
hparams.filter_size = 2048
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train | img2img_transformer2d_tiny | Tiny params. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer2d_tiny():
"""Tiny params."""
hparams = img2img_transformer2d_base()
hparams.num_decoder_layers = 2
hparams.hidden_size = 128
hparams.batch_size = 4
hparams.max_length = 128
hparams.attention_key_channels = hparams.attention_value_channels = 0
hparams.filter_size = 128
hparams.n... | def img2img_transformer2d_tiny():
"""Tiny params."""
hparams = img2img_transformer2d_base()
hparams.num_decoder_layers = 2
hparams.hidden_size = 128
hparams.batch_size = 4
hparams.max_length = 128
hparams.attention_key_channels = hparams.attention_value_channels = 0
hparams.filter_size = 128
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train | img2img_transformer_tiny | Tiny params. | tensor2tensor/models/image_transformer_2d.py | def img2img_transformer_tiny():
"""Tiny params."""
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"""Tiny params."""
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train | ResidualFeedForward | Residual feed-forward layer with normalization at start. | tensor2tensor/trax/models/transformer.py | def ResidualFeedForward(feature_depth,
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"""Residual feed-forward layer with normalization at start."""
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"""Residual feed-forward layer with normalization at start."""
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train | TransformerEncoder | Transformer encoder.
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train | TransformerLM | Transformer language model (only uses the decoder part of Transformer).
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vocab_size: int: vocab size
feature_depth: int: depth of embedding
feedforward_depth: int: depth of feed-forward layer
num_layers: int: number of encoder/decoder layers
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train | ChunkedDecoderLayer | Transformer decoder layer operating on chunks.
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num_heads: int: number of attention heads
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train | ChunkedTransformerLM | Transformer language model operating on chunks.
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Each chunk should have the same shape (batch, chunk-length) and together they
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num_layers=6,
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train | Transformer | Transformer model.
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target_vocab_size: int: target vocab size
mode: str: 'train' or 'eval'
num_layers: int: number of encoder/decoder layers
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dropout=0.1,
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train | mtf_transformer_base | Set of hyperparameters. | tensor2tensor/models/mtf_transformer.py | def mtf_transformer_base():
"""Set of hyperparameters."""
hparams = common_hparams.basic_params1()
hparams.no_data_parallelism = True
hparams.use_fixed_batch_size = True
hparams.add_hparam("mtf_mode", True)
hparams.batch_size = 64
hparams.max_length = 256
hparams.add_hparam("d_model", 512)
hparams.add... | def mtf_transformer_base():
"""Set of hyperparameters."""
hparams = common_hparams.basic_params1()
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hparams.use_fixed_batch_size = True
hparams.add_hparam("mtf_mode", True)
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train | mtf_transformer_tiny | Catch bugs locally... | tensor2tensor/models/mtf_transformer.py | def mtf_transformer_tiny():
"""Catch bugs locally..."""
hparams = mtf_transformer_base()
hparams.d_model = 128
hparams.d_ff = 512
hparams.batch_size = 8
hparams.encoder_layers = ["att", "drd"] * 2
hparams.decoder_layers = ["att", "enc_att", "drd"] * 2
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"""Catch bugs locally..."""
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train | mtf_transformer_paper_lm | Config for language-model experiments.
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The size parameter is an integer that controls the number of heads and the
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Results:
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"""Config for language-model experiments.
Train these on languagemodel_lm1b32k_packed for 136000 steps (10 epochs)
The size parameter is an integer that controls the number of heads and the
size of the size of the feedforward hidden layers. Increasing size by 1
doubles e... | def mtf_transformer_paper_lm(size):
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train | mtf_transformer_paper_tr | Config for translation experiments.
Train these on translate_enfr_wmt32k_packed for 154000 steps (3 epochs)
The size parameter is an integer that controls the number of heads and the
size of the size of the feedforward hidden layers. Increasing size by 1
doubles each of these.
Args:
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... | tensor2tensor/models/mtf_transformer.py | def mtf_transformer_paper_tr(size):
"""Config for translation experiments.
Train these on translate_enfr_wmt32k_packed for 154000 steps (3 epochs)
The size parameter is an integer that controls the number of heads and the
size of the size of the feedforward hidden layers. Increasing size by 1
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Train these on translate_enfr_wmt32k_packed for 154000 steps (3 epochs)
The size parameter is an integer that controls the number of heads and the
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train | mtf_transformer_lm_baseline | Small language model to run on 1 TPU.
Run this on 2x2 on languagemodel_lm1b32k_packed for 272000 steps (10 epochs)
Results:
params/10^9 log-ppl(per-token)
0.14 3.202
Returns:
a hparams | tensor2tensor/models/mtf_transformer.py | def mtf_transformer_lm_baseline():
"""Small language model to run on 1 TPU.
Run this on 2x2 on languagemodel_lm1b32k_packed for 272000 steps (10 epochs)
Results:
params/10^9 log-ppl(per-token)
0.14 3.202
Returns:
a hparams
"""
hparams = mtf_transformer_paper_lm(-1)
hparams... | def mtf_transformer_lm_baseline():
"""Small language model to run on 1 TPU.
Run this on 2x2 on languagemodel_lm1b32k_packed for 272000 steps (10 epochs)
Results:
params/10^9 log-ppl(per-token)
0.14 3.202
Returns:
a hparams
"""
hparams = mtf_transformer_paper_lm(-1)
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train | multihead_graph_attention | Multihead scaled-dot-product attention with input/output transformations.
Args:
query_antecedent: a Tensor with shape [batch, length_q, channels]
memory_antecedent: a Tensor with shape [batch, length_m, channels] or None
bias: bias Tensor (see attention_bias())
total_key_depth: an integer
total_v... | tensor2tensor/layers/message_passing_attention.py | def multihead_graph_attention(query_antecedent,
memory_antecedent,
bias,
total_key_depth,
total_value_depth,
output_depth,
num_heads,
... | def multihead_graph_attention(query_antecedent,
memory_antecedent,
bias,
total_key_depth,
total_value_depth,
output_depth,
num_heads,
... | [
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train | graph_attention | graph attention.
Args:
q: a Tensor with shape [batch, heads, length_q, depth_k]
k: a Tensor with shape [batch, heads, length_kv, depth_k]
v: a Tensor with shape [batch, heads, length_kv, depth_v]
bias: bias Tensor (see attention_bias())
dropout_rate: a floating point number
image_shapes: opti... | tensor2tensor/layers/message_passing_attention.py | def graph_attention(q,
k,
v,
bias,
dropout_rate=0.0,
image_shapes=None,
name=None,
make_image_summary=True,
save_weights_to=None,
dropout_br... | def graph_attention(q,
k,
v,
bias,
dropout_rate=0.0,
image_shapes=None,
name=None,
make_image_summary=True,
save_weights_to=None,
dropout_br... | [
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"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/layers/message_passing_attention.py#L185-L248 | [
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train | _compute_edge_transforms | Helper function that computes transformation for keys and values.
Let B be the number of batches.
Let N be the number of nodes in the graph.
Let D be the size of the node hidden states.
Let K be the size of the attention keys/queries (total_key_depth).
Let V be the size of the attention values (total_value_d... | tensor2tensor/layers/message_passing_attention.py | def _compute_edge_transforms(node_states,
depth,
num_transforms,
name="transform"):
"""Helper function that computes transformation for keys and values.
Let B be the number of batches.
Let N be the number of nodes in the graph... | def _compute_edge_transforms(node_states,
depth,
num_transforms,
name="transform"):
"""Helper function that computes transformation for keys and values.
Let B be the number of batches.
Let N be the number of nodes in the graph... | [
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train | compute_mpnn_qkv | Computes query, key and value for edge matrices.
Let B be the number of batches.
Let N be the number of nodes in the graph.
Let D be the size of the node hidden states.
Let K be the size of the attention keys/queries (total_key_depth).
Let V be the size of the attention values (total_value_depth).
Let T be... | tensor2tensor/layers/message_passing_attention.py | def compute_mpnn_qkv(node_states,
total_key_depth,
total_value_depth,
num_transforms):
"""Computes query, key and value for edge matrices.
Let B be the number of batches.
Let N be the number of nodes in the graph.
Let D be the size of the node hidd... | def compute_mpnn_qkv(node_states,
total_key_depth,
total_value_depth,
num_transforms):
"""Computes query, key and value for edge matrices.
Let B be the number of batches.
Let N be the number of nodes in the graph.
Let D be the size of the node hidd... | [
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train | sparse_message_pass_batched | Identical to sparse_ggnn except that each input has a batch dimension.
B = The batch size.
N = The number of nodes in each batch.
H = The size of the hidden states.
T = The number of edge types.
Args:
node_states: Initial states of each node in the graph. Shape: [B, N, H]
adjacency_matrices: Adjacen... | tensor2tensor/layers/message_passing_attention.py | def sparse_message_pass_batched(node_states,
adjacency_matrices,
num_edge_types,
hidden_size,
use_bias=True,
average_aggregation=False,
... | def sparse_message_pass_batched(node_states,
adjacency_matrices,
num_edge_types,
hidden_size,
use_bias=True,
average_aggregation=False,
... | [
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train | sparse_message_pass | One message-passing step for a GNN with a sparse adjacency matrix.
Implements equation 2 (the message passing step) in
[Li et al. 2015](https://arxiv.org/abs/1511.05493).
N = The number of nodes in each batch.
H = The size of the hidden states.
T = The number of edge types.
Args:
node_states: Initial... | tensor2tensor/layers/message_passing_attention.py | def sparse_message_pass(node_states,
adjacency_matrices,
num_edge_types,
hidden_size,
use_bias=True,
average_aggregation=False,
name="sparse_ggnn"):
"""One message-passing st... | def sparse_message_pass(node_states,
adjacency_matrices,
num_edge_types,
hidden_size,
use_bias=True,
average_aggregation=False,
name="sparse_ggnn"):
"""One message-passing st... | [
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... | 272500b6efe353aeb638d2745ed56e519462ca31 |
train | multihead_mpnn_attention | Multihead scaled-dot-product attention with input/output transformations.
Let B be the number of batches.
Let N be the number of nodes in the graph.
Let D be the size of the node hidden states.
Let K be the size of the attention keys/queries (total_key_depth).
Let V be the size of the attention values (total... | tensor2tensor/layers/message_passing_attention.py | def multihead_mpnn_attention(node_states,
total_key_depth,
total_value_depth,
output_depth,
num_heads,
adjacency_matrix=None,
num_edge_types=5,
... | def multihead_mpnn_attention(node_states,
total_key_depth,
total_value_depth,
output_depth,
num_heads,
adjacency_matrix=None,
num_edge_types=5,
... | [
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"-",
"dot",
"-",
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"attention",
"with",
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"/",
"output",
"transformations",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/layers/message_passing_attention.py#L514-L649 | [
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train | dot_product_mpnn_attention | Dot product attention with edge vectors.
Let B be the number of batches.
Let N be the number of nodes in the graph.
Let K be the size of the attention keys/queries.
Let V be the size of the attention values.
Let T be the total number of transforms (num_transforms).
Args:
q: The query Tensor of shape [... | tensor2tensor/layers/message_passing_attention.py | def dot_product_mpnn_attention(q,
k,
v,
adjacency_matrix,
num_edge_types,
num_transforms=None,
use_weighted_sum=False,
... | def dot_product_mpnn_attention(q,
k,
v,
adjacency_matrix,
num_edge_types,
num_transforms=None,
use_weighted_sum=False,
... | [
"Dot",
"product",
"attention",
"with",
"edge",
"vectors",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/layers/message_passing_attention.py#L652-L783 | [
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train | ggnn_fast_dense | ggnn version of the MPNN from Gilmer et al.
Let B be the number of batches.
Let D be the size of the node hidden states.
Let K be the size of the attention keys/queries.
Let V be the size of the output of the ggnn.
Let T be the number of transforms / edge types.
Args:
node_states: The value Tensor of ... | tensor2tensor/layers/message_passing_attention.py | def ggnn_fast_dense(node_states,
adjacency_matrix,
num_edge_types,
total_value_depth,
name=None):
"""ggnn version of the MPNN from Gilmer et al.
Let B be the number of batches.
Let D be the size of the node hidden states.
Let K be ... | def ggnn_fast_dense(node_states,
adjacency_matrix,
num_edge_types,
total_value_depth,
name=None):
"""ggnn version of the MPNN from Gilmer et al.
Let B be the number of batches.
Let D be the size of the node hidden states.
Let K be ... | [
"ggnn",
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"et",
"al",
"."
] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/layers/message_passing_attention.py#L786-L837 | [
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"# will need to be converted to shape [B, T, N,... | 272500b6efe353aeb638d2745ed56e519462ca31 |
train | compute_values | Compute values. If edge compatibilities is just adjacency, we get ggnn.
Args:
edge_compatibility: A tensor of shape [batch, num_transforms, length, depth]
v: A tensor of shape [batch, num_transforms, length, depth]
Returns:
output: A [batch, length, depth] tensor | tensor2tensor/layers/message_passing_attention.py | def compute_values(edge_compatibility, v):
"""Compute values. If edge compatibilities is just adjacency, we get ggnn.
Args:
edge_compatibility: A tensor of shape [batch, num_transforms, length, depth]
v: A tensor of shape [batch, num_transforms, length, depth]
Returns:
output: A [batch, length, dept... | def compute_values(edge_compatibility, v):
"""Compute values. If edge compatibilities is just adjacency, we get ggnn.
Args:
edge_compatibility: A tensor of shape [batch, num_transforms, length, depth]
v: A tensor of shape [batch, num_transforms, length, depth]
Returns:
output: A [batch, length, dept... | [
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... | 272500b6efe353aeb638d2745ed56e519462ca31 |
train | precompute_edge_matrices | Precompute the a_in and a_out tensors.
(we don't want to add to the graph everytime _fprop is called)
Args:
adjacency: placeholder of real valued vectors of shape [B, L, L, E]
hparams: HParams object
Returns:
edge_matrices: [batch, L * D, L * D] the dense matrix for message passing
viewed as a bl... | tensor2tensor/layers/message_passing_attention.py | def precompute_edge_matrices(adjacency, hparams):
"""Precompute the a_in and a_out tensors.
(we don't want to add to the graph everytime _fprop is called)
Args:
adjacency: placeholder of real valued vectors of shape [B, L, L, E]
hparams: HParams object
Returns:
edge_matrices: [batch, L * D, L * D] ... | def precompute_edge_matrices(adjacency, hparams):
"""Precompute the a_in and a_out tensors.
(we don't want to add to the graph everytime _fprop is called)
Args:
adjacency: placeholder of real valued vectors of shape [B, L, L, E]
hparams: HParams object
Returns:
edge_matrices: [batch, L * D, L * D] ... | [
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"."... | 272500b6efe353aeb638d2745ed56e519462ca31 |
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