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train | rlmb_tiny_recurrent | Tiny setting with a recurrent next-frame model. | tensor2tensor/rl/trainer_model_based_params.py | def rlmb_tiny_recurrent():
"""Tiny setting with a recurrent next-frame model."""
hparams = rlmb_ppo_tiny()
hparams.epochs = 1 # Too slow with 2 for regular runs.
hparams.generative_model = "next_frame_basic_recurrent"
hparams.generative_model_params = "next_frame_basic_recurrent"
return hparams | def rlmb_tiny_recurrent():
"""Tiny setting with a recurrent next-frame model."""
hparams = rlmb_ppo_tiny()
hparams.epochs = 1 # Too slow with 2 for regular runs.
hparams.generative_model = "next_frame_basic_recurrent"
hparams.generative_model_params = "next_frame_basic_recurrent"
return hparams | [
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train | rlmb_tiny_sv2p | Tiny setting with a tiny sv2p model. | tensor2tensor/rl/trainer_model_based_params.py | def rlmb_tiny_sv2p():
"""Tiny setting with a tiny sv2p model."""
hparams = rlmb_ppo_tiny()
hparams.generative_model = "next_frame_sv2p"
hparams.generative_model_params = "next_frame_sv2p_tiny"
hparams.grayscale = False
return hparams | def rlmb_tiny_sv2p():
"""Tiny setting with a tiny sv2p model."""
hparams = rlmb_ppo_tiny()
hparams.generative_model = "next_frame_sv2p"
hparams.generative_model_params = "next_frame_sv2p_tiny"
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train | rlmb_grid | Grid over games and frames, and 5 runs each for variance. | tensor2tensor/rl/trainer_model_based_params.py | def rlmb_grid(rhp):
"""Grid over games and frames, and 5 runs each for variance."""
rhp.set_categorical("loop.game", ["breakout", "pong", "freeway"])
base = 100000
medium = base // 2
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"""Grid over games and frames, and 5 runs each for variance."""
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train | merge_unscoped_hparams | Merge multiple HParams into one with scopes. | tensor2tensor/rl/trainer_model_based_params.py | def merge_unscoped_hparams(scopes_and_hparams):
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merged_values[scoped_key] = value
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merged_values = {}
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train | split_scoped_hparams | Split single HParams with scoped keys into multiple. | tensor2tensor/rl/trainer_model_based_params.py | def split_scoped_hparams(scopes, merged_hparams):
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train | training_loop_hparams_from_scoped_overrides | Create HParams suitable for training loop from scoped HParams.
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"""Create HParams suitable for training loop from scoped HParams.
Args:
scoped_overrides: HParams, with keys all scoped by one of HP_SCOPES. These
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train | PlayerEnv.get_keys_to_action | Get mapping from keyboard keys to actions.
Required by gym.utils.play in environment or top level wrapper.
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Required by gym.utils.play in environment or top level wrapper.
Returns:
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Unicode code point for keyboard key: action (formatted for step()),
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Required by gym.utils.play in environment or top level wrapper.
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train | PlayerEnv.step | Pass action to underlying environment(s) or perform special action. | tensor2tensor/rl/player.py | def step(self, action):
"""Pass action to underlying environment(s) or perform special action."""
# Special codes
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envs_step_tuples = self._player_actions()[action]()
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train | PlayerEnv._augment_observation | Expand observation array with additional information header (top rows).
Args:
ob: observation
reward: reward to be included in header.
cumulative_reward: total cumulated reward to be included in header.
Returns:
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ob: observation
reward: reward to be included in header.
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train | SimAndRealEnvPlayer._player_step_tuple | Construct observation, return usual step tuple.
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envs_step_tuples: tuples.
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train | SimAndRealEnvPlayer.reset | Reset simulated and real environments. | tensor2tensor/rl/player.py | def reset(self):
"""Reset simulated and real environments."""
self._frame_counter = 0
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train | SimAndRealEnvPlayer._step_envs | Perform step(action) on environments and update initial_frame_stack. | tensor2tensor/rl/player.py | def _step_envs(self, action):
"""Perform step(action) on environments and update initial_frame_stack."""
self._frame_counter += 1
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train | SingleEnvPlayer._player_step_tuple | Augment observation, return usual step tuple. | tensor2tensor/rl/player.py | def _player_step_tuple(self, envs_step_tuples):
"""Augment observation, return usual step tuple."""
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train | add_delta_deltas | Compute time first and second-order derivative channels.
Args:
filterbanks: float32 tensor with shape [batch_size, len, num_bins, 1]
name: scope name
Returns:
float32 tensor with shape [batch_size, len, num_bins, 3] | tensor2tensor/layers/common_audio.py | def add_delta_deltas(filterbanks, name=None):
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Args:
filterbanks: float32 tensor with shape [batch_size, len, num_bins, 1]
name: scope name
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float32 tensor with shape [batch_size, len, num_bins, 3]
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delta_filter = np.array([2,... | def add_delta_deltas(filterbanks, name=None):
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Args:
filterbanks: float32 tensor with shape [batch_size, len, num_bins, 1]
name: scope name
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float32 tensor with shape [batch_size, len, num_bins, 3]
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delta_filter = np.array([2,... | [
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train | compute_mel_filterbank_features | Implement mel-filterbank extraction using tf ops.
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waveforms: float32 tensor with shape [batch_size, max_len]
sample_rate: sampling rate of the waveform
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frame_length=25, frame_step=10, fft_length=None,
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lower_edge_hertz=80.0, upper_edge_hertz=7600.0, num_me... | def compute_mel_filterbank_features(
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frame_length=25, frame_step=10, fft_length=None,
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train | play_env_problem_randomly | Plays the env problem by randomly sampling actions for `num_steps`. | tensor2tensor/envs/env_problem_utils.py | def play_env_problem_randomly(env_problem,
num_steps):
"""Plays the env problem by randomly sampling actions for `num_steps`."""
# Reset all environments.
env_problem.reset()
# Play all environments, sampling random actions each time.
for _ in range(num_steps):
# Sample batc... | def play_env_problem_randomly(env_problem,
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"""Plays the env problem by randomly sampling actions for `num_steps`."""
# Reset all environments.
env_problem.reset()
# Play all environments, sampling random actions each time.
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train | generate_plaintext_random | Generates samples of text from the provided vocabulary.
Args:
plain_vocab: vocabulary.
distribution: distribution.
train_samples: samples for training.
length: length.
Returns:
train_indices (np.array of Integers): random integers for training.
shape = [num_samples, length]
test_indi... | tensor2tensor/data_generators/cipher.py | def generate_plaintext_random(plain_vocab, distribution, train_samples,
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"""Generates samples of text from the provided vocabulary.
Args:
plain_vocab: vocabulary.
distribution: distribution.
train_samples: samples for training.
length: length.
Returns:
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Args:
plain_vocab: vocabulary.
distribution: distribution.
train_samples: samples for training.
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train | encipher_shift | Encrypt plain text with a single shift layer.
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plain_vocab (list of Integer): unique vocabularies being used.
shift (Integer): number of shift, shift to the right if shift is positive.
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train | encipher_vigenere | Encrypt plain text with given key.
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plain_vocab (list of Integer): unique vocabularies being used.
key (list of Integer): key to encrypt cipher using Vigenere table.
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plaintext (list of list of Strings): a list of plain text to encrypt.
plain_vocab (list of Integer): unique vocabularies being used.
key (list of Integer): key to encrypt cipher using Vigenere table.
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plaintext (list of list of Strings): a list of plain text to encrypt.
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train | _super_stack | A stack of super_lm layers.
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hparams: hyperparameters for model
mp: a Parallelism object
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"""A stack of super_lm layers.
Args:
inputs: a list of Tensors
attention_bias: list of bias Tensor for self-attention
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train | super_lm_base | Set of hyperparameters. | tensor2tensor/models/research/super_lm.py | def super_lm_base():
"""Set of hyperparameters."""
hparams = common_hparams.basic_params1()
hparams.hidden_size = 512
hparams.moe_hidden_sizes = "512"
hparams.batch_size = 16384
hparams.max_length = 0
# All hyperparameters ending in "dropout" are automatically set to 0.0
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h... | def super_lm_base():
"""Set of hyperparameters."""
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train | super_lm_moe | Add mixture of experts with ~1B params. | tensor2tensor/models/research/super_lm.py | def super_lm_moe():
"""Add mixture of experts with ~1B params."""
hparams = super_lm_base()
hparams.layers = (
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hparams.moe_num_experts = 32
hparams.moe_hidden_sizes = "1024"
return hparams | def super_lm_moe():
"""Add mixture of experts with ~1B params."""
hparams = super_lm_base()
hparams.layers = (
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hparams.moe_num_experts = 32
hparams.moe_hidden_sizes = "1024"
return hparams | [
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train | xmoe_tr_dense_2k | Series of architectural experiments on Translation.
# run on 8-core setup
119M params, einsum=0.95e13
Returns:
a hparams | tensor2tensor/models/research/moe_experiments.py | def xmoe_tr_dense_2k():
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# run on 8-core setup
119M params, einsum=0.95e13
Returns:
a hparams
"""
hparams = mtf_transformer2.mtf_bitransformer_base()
hparams.encoder_layers = ["self_att", "drd"] * 4
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"""Series of architectural experiments on Translation.
# run on 8-core setup
119M params, einsum=0.95e13
Returns:
a hparams
"""
hparams = mtf_transformer2.mtf_bitransformer_base()
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train | xmoe_tr_1d | Mixture of experts (16 experts).
623M Params, einsum=1.09e13
Returns:
a hparams | tensor2tensor/models/research/moe_experiments.py | def xmoe_tr_1d():
"""Mixture of experts (16 experts).
623M Params, einsum=1.09e13
Returns:
a hparams
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hparams = xmoe_tr_dense_2k()
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hparams.decoder_layers = ["self_att", "enc_att", "moe_1d"] * 4
hparams.layout = "batch:batch;experts:batch"
h... | def xmoe_tr_1d():
"""Mixture of experts (16 experts).
623M Params, einsum=1.09e13
Returns:
a hparams
"""
hparams = xmoe_tr_dense_2k()
hparams.encoder_layers = ["self_att", "moe_1d"] * 4
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hparams.layout = "batch:batch;experts:batch"
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train | xmoe_tr_2d | Mixture of experts (16 experts).
623M Params, einsum=1.09e13
Returns:
a hparams | tensor2tensor/models/research/moe_experiments.py | def xmoe_tr_2d():
"""Mixture of experts (16 experts).
623M Params, einsum=1.09e13
Returns:
a hparams
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hparams = xmoe_tr_dense_2k()
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hparams.encoder_layers = ["... | def xmoe_tr_2d():
"""Mixture of experts (16 experts).
623M Params, einsum=1.09e13
Returns:
a hparams
"""
hparams = xmoe_tr_dense_2k()
hparams.mesh_shape = "b0:2;b1:4"
hparams.outer_batch_size = 4
hparams.layout = "outer_batch:b0;inner_batch:b1,expert_x:b1,expert_y:b0"
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train | xmoe_dense_4k | Series of architectural experiments on cheap language models.
For all of these architectures, we run on languagemodel_lm1b8k_packed
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All log-perplexities are per-token - multiply by 1.298 for per-word
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xmoe_dense_4k ... | tensor2tensor/models/research/moe_experiments.py | def xmoe_dense_4k():
"""Series of architectural experiments on cheap language models.
For all of these architectures, we run on languagemodel_lm1b8k_packed
for 32000 steps.
All log-perplexities are per-token - multiply by 1.298 for per-word
Results:
model params(M) einsum alltoall mxu-util... | def xmoe_dense_4k():
"""Series of architectural experiments on cheap language models.
For all of these architectures, we run on languagemodel_lm1b8k_packed
for 32000 steps.
All log-perplexities are per-token - multiply by 1.298 for per-word
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train | xmoe_top_2 | Mixture of experts (16 experts). | tensor2tensor/models/research/moe_experiments.py | def xmoe_top_2():
"""Mixture of experts (16 experts)."""
hparams = xmoe_dense_4k()
moe.set_default_moe_hparams(hparams)
hparams.mesh_shape = "all:8"
hparams.layout = "batch:all;experts:all"
return hparams | def xmoe_top_2():
"""Mixture of experts (16 experts)."""
hparams = xmoe_dense_4k()
moe.set_default_moe_hparams(hparams)
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train | xmoe_2d | Two-dimensional hierarchical mixture of 16 experts. | tensor2tensor/models/research/moe_experiments.py | def xmoe_2d():
"""Two-dimensional hierarchical mixture of 16 experts."""
hparams = xmoe_top_2()
hparams.decoder_layers = ["att", "hmoe"] * 4
hparams.mesh_shape = "b0:2;b1:4"
hparams.outer_batch_size = 4
hparams.layout = "outer_batch:b0;inner_batch:b1,expert_x:b1,expert_y:b0"
hparams.moe_num_experts = [4, ... | def xmoe_2d():
"""Two-dimensional hierarchical mixture of 16 experts."""
hparams = xmoe_top_2()
hparams.decoder_layers = ["att", "hmoe"] * 4
hparams.mesh_shape = "b0:2;b1:4"
hparams.outer_batch_size = 4
hparams.layout = "outer_batch:b0;inner_batch:b1,expert_x:b1,expert_y:b0"
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train | xmoe2_dense | Series of architectural experiments on language modeling.
Larger models than the ones above.
All models are trained on sequences of 1024 tokens.
We assume infinite training data, so no dropout necessary.
We process 2^36 tokens in training = 524288 steps at batch size 128
TODO(noam): find a large enough da... | tensor2tensor/models/research/moe_experiments.py | def xmoe2_dense(sz):
"""Series of architectural experiments on language modeling.
Larger models than the ones above.
All models are trained on sequences of 1024 tokens.
We assume infinite training data, so no dropout necessary.
We process 2^36 tokens in training = 524288 steps at batch size 128
TODO(noa... | def xmoe2_dense(sz):
"""Series of architectural experiments on language modeling.
Larger models than the ones above.
All models are trained on sequences of 1024 tokens.
We assume infinite training data, so no dropout necessary.
We process 2^36 tokens in training = 524288 steps at batch size 128
TODO(noa... | [
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train | xmoe2_v1 | Model incorporating mixture-of-experts and local-attention.
~6B parameters
32 experts in 3 hierarchichal moe layers.
Returns:
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"""Model incorporating mixture-of-experts and local-attention.
~6B parameters
32 experts in 3 hierarchichal moe layers.
Returns:
a hparams
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"""Model incorporating mixture-of-experts and local-attention.
~6B parameters
32 experts in 3 hierarchichal moe layers.
Returns:
a hparams
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train | xmoe2_v1_x128 | 128 experts, ~25B params - Train for 131072 steps on 8x8. | tensor2tensor/models/research/moe_experiments.py | def xmoe2_v1_x128():
"""128 experts, ~25B params - Train for 131072 steps on 8x8."""
hparams = xmoe2_v1()
hparams.moe_num_experts = [16, 8]
hparams.outer_batch_size = 8
hparams.mesh_shape = "b0:8;b1:16"
hparams.batch_size = 512
hparams.learning_rate_decay_steps = 16384
return hparams | def xmoe2_v1_x128():
"""128 experts, ~25B params - Train for 131072 steps on 8x8."""
hparams = xmoe2_v1()
hparams.moe_num_experts = [16, 8]
hparams.outer_batch_size = 8
hparams.mesh_shape = "b0:8;b1:16"
hparams.batch_size = 512
hparams.learning_rate_decay_steps = 16384
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train | xmoe2_tiny | Test on local cpu. | tensor2tensor/models/research/moe_experiments.py | def xmoe2_tiny():
"""Test on local cpu."""
hparams = xmoe2_v1()
hparams.decoder_layers = [
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hparams.moe_hidden_size = 512
hparams.outer_batch_size = 0
hparams.batch_size = 2
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hparams.activation_dtype... | def xmoe2_tiny():
"""Test on local cpu."""
hparams = xmoe2_v1()
hparams.decoder_layers = [
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hparams.d_model = 128
hparams.moe_hidden_size = 512
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train | xmoe2_v1_l4k | With sequence length 4096. | tensor2tensor/models/research/moe_experiments.py | def xmoe2_v1_l4k():
"""With sequence length 4096."""
hparams = xmoe2_v1()
hparams.batch_size = 32
hparams.max_length = 4096
hparams.split_to_length = 4096
hparams.reshape_logits_hack = True
return hparams | def xmoe2_v1_l4k():
"""With sequence length 4096."""
hparams = xmoe2_v1()
hparams.batch_size = 32
hparams.max_length = 4096
hparams.split_to_length = 4096
hparams.reshape_logits_hack = True
return hparams | [
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train | xmoe2_v1_l4k_local_only | With sequence length 4096. | tensor2tensor/models/research/moe_experiments.py | def xmoe2_v1_l4k_local_only():
"""With sequence length 4096."""
hparams = xmoe2_v1_l4k()
hparams.decoder_layers = [
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return hparams | def xmoe2_v1_l4k_local_only():
"""With sequence length 4096."""
hparams = xmoe2_v1_l4k()
hparams.decoder_layers = [
"local_att" if l == "att" else l for l in hparams.decoder_layers]
return hparams | [
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train | xmoe2_v1_l4k_global_only | With sequence length 4096. | tensor2tensor/models/research/moe_experiments.py | def xmoe2_v1_l4k_global_only():
"""With sequence length 4096."""
hparams = xmoe2_v1_l4k()
hparams.decoder_layers = [
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return hparams | def xmoe2_v1_l4k_global_only():
"""With sequence length 4096."""
hparams = xmoe2_v1_l4k()
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train | xmoe2_v1_l4k_compressed_c4 | With compressed attention. | tensor2tensor/models/research/moe_experiments.py | def xmoe2_v1_l4k_compressed_c4():
"""With compressed attention."""
hparams = xmoe2_v1_l4k()
hparams.decoder_layers = [
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hparams.compression_factor = 4
return hparams | def xmoe2_v1_l4k_compressed_c4():
"""With compressed attention."""
hparams = xmoe2_v1_l4k()
hparams.decoder_layers = [
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hparams.compression_factor = 4
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train | wiki_2x2_base | Set of architectural experiments - language model on wikipedia on a 2x2.
1 epoch = ~180k steps at batch size 32 - we may never finish an epoch!
Returns:
a hparams | tensor2tensor/models/research/moe_experiments.py | def wiki_2x2_base():
"""Set of architectural experiments - language model on wikipedia on a 2x2.
1 epoch = ~180k steps at batch size 32 - we may never finish an epoch!
Returns:
a hparams
"""
hparams = mtf_transformer.mtf_transformer_base_lm()
hparams.shared_embedding_and_softmax_weights = False
# no... | def wiki_2x2_base():
"""Set of architectural experiments - language model on wikipedia on a 2x2.
1 epoch = ~180k steps at batch size 32 - we may never finish an epoch!
Returns:
a hparams
"""
hparams = mtf_transformer.mtf_transformer_base_lm()
hparams.shared_embedding_and_softmax_weights = False
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train | denoise_z15 | Replace tokens instead of masking. | tensor2tensor/models/research/moe_experiments.py | def denoise_z15():
"""Replace tokens instead of masking."""
hparams = xmoe2_dense_0()
hparams.decoder_type = "denoising"
hparams.noising_spec_train = {"type": "random_zipfian", "prob": 0.15}
hparams.noising_use_eval_during_train = 0.25
return hparams | def denoise_z15():
"""Replace tokens instead of masking."""
hparams = xmoe2_dense_0()
hparams.decoder_type = "denoising"
hparams.noising_spec_train = {"type": "random_zipfian", "prob": 0.15}
hparams.noising_use_eval_during_train = 0.25
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train | denoise_v1_m15 | Denoising experiment. | tensor2tensor/models/research/moe_experiments.py | def denoise_v1_m15():
"""Denoising experiment."""
hparams = xmoe2_v1()
# no local attention
# TODO(noam): non-masked version of local-attention
hparams.decoder_layers = [
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"""Denoising experiment."""
hparams = xmoe2_v1()
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hparams.decoder_layers = [
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train | _download_mlu_data | Downloads and extracts the dataset.
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tmp_dir: temp directory to download and extract the dataset
data_dir: The base directory where data and vocab files are stored.
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tmp_dir: temp directory containing the raw data. | tensor2tensor/data_generators/algorithmic_math_two_variables.py | def _download_mlu_data(tmp_dir, data_dir):
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tmp_dir: temp directory to download and extract the dataset
data_dir: The base directory where data and vocab files are stored.
Returns:
tmp_dir: temp directory containing the raw data.
"""
if not tf.gfile.Ex... | def _download_mlu_data(tmp_dir, data_dir):
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Args:
tmp_dir: temp directory to download and extract the dataset
data_dir: The base directory where data and vocab files are stored.
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tmp_dir: temp directory containing the raw data.
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train | _get_ngram_counter | Get a Counter with the ngrams of the given ID list.
Args:
ids: np.array or a list corresponding to a single sentence
n: n-gram size
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collections.Counter with ID tuples as keys and 1s as values. | tensor2tensor/utils/sari_hook.py | def _get_ngram_counter(ids, n):
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Args:
ids: np.array or a list corresponding to a single sentence
n: n-gram size
Returns:
collections.Counter with ID tuples as keys and 1s as values.
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ids: np.array or a list corresponding to a single sentence
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train | _get_fbeta_score | Compute Fbeta score.
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true_positives: Number of true positive ngrams.
selected: Number of selected ngrams.
relevant: Number of relevant ngrams.
beta: 0 gives precision only, 1 gives F1 score, and Inf gives recall only.
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true_positives: Number of true positive ngrams.
selected: Number of selected ngrams.
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true_positives: Number of true positive ngrams.
selected: Number of selected ngrams.
relevant: Number of relevant ngrams.
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train | get_addition_score | Compute the addition score (Equation 4 in the paper). | tensor2tensor/utils/sari_hook.py | def get_addition_score(source_counts, prediction_counts, target_counts):
"""Compute the addition score (Equation 4 in the paper)."""
added_to_prediction_counts = prediction_counts - source_counts
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train | get_keep_score | Compute the keep score (Equation 5 in the paper). | tensor2tensor/utils/sari_hook.py | def get_keep_score(source_counts, prediction_counts, target_counts):
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train | get_deletion_score | Compute the deletion score (Equation 6 in the paper). | tensor2tensor/utils/sari_hook.py | def get_deletion_score(source_counts, prediction_counts, target_counts, beta=0):
"""Compute the deletion score (Equation 6 in the paper)."""
source_not_prediction_counts = source_counts - prediction_counts
source_not_target_counts = source_counts - target_counts
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train | get_sari_score | Compute the SARI score for a single prediction and one or more targets.
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prediction_ids: a list / np.array of SentencePiece IDs
list_of_targets: a list of target ID lists / np.arrays
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train | get_sari | Computes the SARI scores from the given source, prediction and targets.
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prediction_ids: A 2D tf.Tensor of size (batch_size, sequence_length)
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target_ids: A 3D... | def get_sari(source_ids, prediction_ids, target_ids, max_gram_size=4):
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train | sari_score | Computes the SARI scores from the given source, prediction and targets.
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Also, this does not have beam search.
Args:
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... | tensor2tensor/utils/sari_hook.py | def sari_score(predictions, labels, features, **unused_kwargs):
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train | _get_mnist | Download all MNIST files to directory unless they are there. | tensor2tensor/data_generators/mnist.py | def _get_mnist(directory):
"""Download all MNIST files to directory unless they are there."""
for filename in [
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]:
generator_utils.maybe_download(directory, filename, _MNIST_URL + filen... | def _get_mnist(directory):
"""Download all MNIST files to directory unless they are there."""
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train | _extract_mnist_images | Extract images from an MNIST file into a numpy array.
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filename: The path to an MNIST images file.
num_images: The number of images in the file.
Returns:
A numpy array of shape [number_of_images, height, width, channels]. | tensor2tensor/data_generators/mnist.py | def _extract_mnist_images(filename, num_images):
"""Extract images from an MNIST file into a numpy array.
Args:
filename: The path to an MNIST images file.
num_images: The number of images in the file.
Returns:
A numpy array of shape [number_of_images, height, width, channels].
"""
with gzip.ope... | def _extract_mnist_images(filename, num_images):
"""Extract images from an MNIST file into a numpy array.
Args:
filename: The path to an MNIST images file.
num_images: The number of images in the file.
Returns:
A numpy array of shape [number_of_images, height, width, channels].
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train | _extract_mnist_labels | Extract labels from an MNIST file into integers.
Args:
filename: The path to an MNIST labels file.
num_labels: The number of labels in the file.
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A int64 numpy array of shape [num_labels] | tensor2tensor/data_generators/mnist.py | def _extract_mnist_labels(filename, num_labels):
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filename: The path to an MNIST labels file.
num_labels: The number of labels in the file.
Returns:
A int64 numpy array of shape [num_labels]
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filename: The path to an MNIST labels file.
num_labels: The number of labels in the file.
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A int64 numpy array of shape [num_labels]
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train | mnist_common_generator | Image generator for MNIST.
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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.
data_filename: file that contains features data.
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"""Image generator for MNIST.
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tmp_dir: path to temporary storage dir... | def mnist_common_generator(tmp_dir,
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train | mnist_generator | Image generator for MNIST.
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how_many: how many images and labels to generate.
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tmp_dir: path to temporary storage directory.
training: a Boolean; if true, we use the train set, otherwise the test set.
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start_from: from which imag... | def mnist_generator(tmp_dir, training, how_many, start_from=0):
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tmp_dir: path to temporary storage directory.
training: a Boolean; if true, we use the train set, otherwise the test set.
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train | _get_fashion_mnist | Download all FashionMNIST files to directory unless they are there. | tensor2tensor/data_generators/mnist.py | def _get_fashion_mnist(directory):
"""Download all FashionMNIST files to directory unless they are there."""
# Fashion mnist files have the same names as MNIST.
# We must choose a separate name (by adding 'fashion-' prefix) in the tmp_dir.
for filename in [
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"""Download all FashionMNIST files to directory unless they are there."""
# Fashion mnist files have the same names as MNIST.
# We must choose a separate name (by adding 'fashion-' prefix) in the tmp_dir.
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train | fashion_mnist_generator | Image generator for FashionMNIST.
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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_from: from which image to start.
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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_from: ... | def fashion_mnist_generator(tmp_dir, training, how_many, start_from=0):
"""Image generator for FashionMNIST.
Args:
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.
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train | generate_data | Generates synthetic timeseries using input parameters.
Each generated timeseries has timeseries_length data points.
Parameters for each timeseries are specified by timeseries_params.
Args:
timeseries_length: Number of data points to generate for each timeseries.
timeseries_params: Parameters used to gen... | tensor2tensor/data_generators/timeseries_data_generator.py | def generate_data(timeseries_length, timeseries_params):
"""Generates synthetic timeseries using input parameters.
Each generated timeseries has timeseries_length data points.
Parameters for each timeseries are specified by timeseries_params.
Args:
timeseries_length: Number of data points to generate for ... | def generate_data(timeseries_length, timeseries_params):
"""Generates synthetic timeseries using input parameters.
Each generated timeseries has timeseries_length data points.
Parameters for each timeseries are specified by timeseries_params.
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train | next_frame_basic_stochastic | Basic 2-frame conv model with stochastic tower. | tensor2tensor/models/video/basic_stochastic.py | def next_frame_basic_stochastic():
"""Basic 2-frame conv model with stochastic tower."""
hparams = basic_deterministic_params.next_frame_basic_deterministic()
hparams.stochastic_model = True
hparams.add_hparam("latent_channels", 1)
hparams.add_hparam("latent_std_min", -5.0)
hparams.add_hparam("num_iteration... | def next_frame_basic_stochastic():
"""Basic 2-frame conv model with stochastic tower."""
hparams = basic_deterministic_params.next_frame_basic_deterministic()
hparams.stochastic_model = True
hparams.add_hparam("latent_channels", 1)
hparams.add_hparam("latent_std_min", -5.0)
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train | next_frame_sampling_stochastic | Basic 2-frame conv model with stochastic tower. | tensor2tensor/models/video/basic_stochastic.py | def next_frame_sampling_stochastic():
"""Basic 2-frame conv model with stochastic tower."""
hparams = basic_deterministic_params.next_frame_sampling()
hparams.stochastic_model = True
hparams.add_hparam("latent_channels", 1)
hparams.add_hparam("latent_std_min", -5.0)
hparams.add_hparam("num_iterations_1st_st... | def next_frame_sampling_stochastic():
"""Basic 2-frame conv model with stochastic tower."""
hparams = basic_deterministic_params.next_frame_sampling()
hparams.stochastic_model = True
hparams.add_hparam("latent_channels", 1)
hparams.add_hparam("latent_std_min", -5.0)
hparams.add_hparam("num_iterations_1st_st... | [
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train | next_frame_basic_stochastic_discrete | Basic 2-frame conv model with stochastic discrete latent. | tensor2tensor/models/video/basic_stochastic.py | def next_frame_basic_stochastic_discrete():
"""Basic 2-frame conv model with stochastic discrete latent."""
hparams = basic_deterministic_params.next_frame_sampling()
hparams.batch_size = 4
hparams.video_num_target_frames = 6
hparams.scheduled_sampling_mode = "prob_inverse_lin"
hparams.scheduled_sampling_de... | def next_frame_basic_stochastic_discrete():
"""Basic 2-frame conv model with stochastic discrete latent."""
hparams = basic_deterministic_params.next_frame_sampling()
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train | next_frame_stochastic_discrete_range | Next frame stochastic discrete tuning grid. | tensor2tensor/models/video/basic_stochastic.py | def next_frame_stochastic_discrete_range(rhp):
"""Next frame stochastic discrete tuning grid."""
rhp.set_float("learning_rate_constant", 0.001, 0.01)
rhp.set_float("dropout", 0.2, 0.6)
rhp.set_int("filter_double_steps", 3, 5)
rhp.set_discrete("hidden_size", [64, 96, 128])
rhp.set_discrete("bottleneck_bits",... | def next_frame_stochastic_discrete_range(rhp):
"""Next frame stochastic discrete tuning grid."""
rhp.set_float("learning_rate_constant", 0.001, 0.01)
rhp.set_float("dropout", 0.2, 0.6)
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rhp.set_discrete("hidden_size", [64, 96, 128])
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train | nested_map | Map the function f to the nested structure x (dicts, tuples, lists). | tensor2tensor/trax/layers/base.py | def nested_map(x, f):
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train | shapes | Get a structure of shapes for a structure of nested arrays. | tensor2tensor/trax/layers/base.py | def shapes(x):
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train | sizes | Get a structure of sizes for a structure of nested arrays. | tensor2tensor/trax/layers/base.py | def sizes(x):
"""Get a structure of sizes for a structure of nested arrays."""
def size(x):
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except Exception: # pylint: disable=broad-except
return 0
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train | _find_frame | Find the frame with the caller on the stack. | tensor2tensor/trax/layers/base.py | def _find_frame(stack, start=0):
"""Find the frame with the caller on the stack."""
# We want to find the first place where the layer was called
# that is *not* an __init__ function of an inheriting layer.
frame = inspect.getframeinfo(stack[start][0])
# If we are in an init, move on.
if frame.function == '_... | def _find_frame(stack, start=0):
"""Find the frame with the caller on the stack."""
# We want to find the first place where the layer was called
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train | _shorten_file_path | Shorten file path in error lines for more readable tracebacks. | tensor2tensor/trax/layers/base.py | def _shorten_file_path(line):
"""Shorten file path in error lines for more readable tracebacks."""
start = line.lower().find('file')
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first_quote = line.find('"', start)
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train | _short_traceback | Cleaned-up form of traceback. | tensor2tensor/trax/layers/base.py | def _short_traceback(skip=3):
"""Cleaned-up form of traceback."""
counter, res = 0, []
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train | layer | Create a layer class from a function. | tensor2tensor/trax/layers/base.py | def layer(output_shape=None, new_parameters=None):
"""Create a layer class from a function."""
def layer_decorator(call):
"""Decorating the call function."""
def output_shape_fun(self, input_shape):
if output_shape is None:
return input_shape
kwargs = self._init_kwargs # pylint: disable... | def layer(output_shape=None, new_parameters=None):
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def layer_decorator(call):
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def output_shape_fun(self, input_shape):
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train | Layer.initialize | Initialize the layer given an input shape and rng.
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subsequent call, as the layer is already initialized. This is used for
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Note that all arguments and return va... | tensor2tensor/trax/layers/base.py | def initialize(self, input_shape, rng):
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train | _references_content | Returns dict<str ref_url, str ref_content>. | tensor2tensor/data_generators/wikisum/wikisum.py | def _references_content(ref_files):
"""Returns dict<str ref_url, str ref_content>."""
example_spec = {
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"content": tf.FixedLenFeature([], tf.string),
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data = {}
for ex in generator_utils.tfrecord_iterator(
ref_files, gzipped=True, example_spec=exampl... | def _references_content(ref_files):
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train | _wiki_urls_for_shard | Urls for chunk: dict<str wiki_url, list<str> ref_urls>. | tensor2tensor/data_generators/wikisum/wikisum.py | def _wiki_urls_for_shard(shard_id, urls_dir=None):
"""Urls for chunk: dict<str wiki_url, list<str> ref_urls>."""
urls_dir = urls_dir or WIKI_URLS_DIR
urls_filepath = os.path.join(urls_dir, WIKI_URLS_FILE % shard_id)
with tf.gfile.GFile(urls_filepath) as f:
return json.loads(f.read()) | def _wiki_urls_for_shard(shard_id, urls_dir=None):
"""Urls for chunk: dict<str wiki_url, list<str> ref_urls>."""
urls_dir = urls_dir or WIKI_URLS_DIR
urls_filepath = os.path.join(urls_dir, WIKI_URLS_FILE % shard_id)
with tf.gfile.GFile(urls_filepath) as f:
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train | _wiki_articles | Generates WikipediaArticles from GCS that are part of shard shard_id. | tensor2tensor/data_generators/wikisum/wikisum.py | def _wiki_articles(shard_id, wikis_dir=None):
"""Generates WikipediaArticles from GCS that are part of shard shard_id."""
if not wikis_dir:
wikis_dir = WIKI_CONTENT_DIR
with tf.Graph().as_default():
dataset = tf.data.TFRecordDataset(
cc_utils.readahead(
os.path.join(wikis_dir, WIKI_CON... | def _wiki_articles(shard_id, wikis_dir=None):
"""Generates WikipediaArticles from GCS that are part of shard shard_id."""
if not wikis_dir:
wikis_dir = WIKI_CONTENT_DIR
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train | rank_reference_paragraphs | Rank and return reference paragraphs by tf-idf score on title tokens. | tensor2tensor/data_generators/wikisum/wikisum.py | def rank_reference_paragraphs(wiki_title, references_content, normalize=True):
"""Rank and return reference paragraphs by tf-idf score on title tokens."""
normalized_title = _normalize_text(wiki_title)
title_tokens = _tokens_to_score(
set(tokenizer.encode(text_encoder.native_to_unicode(normalized_title))))
... | def rank_reference_paragraphs(wiki_title, references_content, normalize=True):
"""Rank and return reference paragraphs by tf-idf score on title tokens."""
normalized_title = _normalize_text(wiki_title)
title_tokens = _tokens_to_score(
set(tokenizer.encode(text_encoder.native_to_unicode(normalized_title))))
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train | produce_examples | Produce examples from shard_ids to out_filepaths. | tensor2tensor/data_generators/wikisum/wikisum.py | def produce_examples(shard_ids, wikis_dir, refs_dir, urls_dir, vocab_path,
out_filepaths):
"""Produce examples from shard_ids to out_filepaths."""
# * Join the Wikipedia articles with their references
# * Run Tf-idf to sort reference paragraphs
# * Encode the Wikipedia and reference text wi... | def produce_examples(shard_ids, wikis_dir, refs_dir, urls_dir, vocab_path,
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"""Produce examples from shard_ids to out_filepaths."""
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train | _encode_wiki_sections | Encodes sections with vocab. Returns ids and section boundaries. | tensor2tensor/data_generators/wikisum/wikisum.py | def _encode_wiki_sections(sections, vocab):
"""Encodes sections with vocab. Returns ids and section boundaries."""
ids = []
section_boundaries = []
for i, section in enumerate(sections):
if i > 0:
# Skip including article title
ids.extend(vocab.encode(_format_title(_normalize_text(section.title)... | def _encode_wiki_sections(sections, vocab):
"""Encodes sections with vocab. Returns ids and section boundaries."""
ids = []
section_boundaries = []
for i, section in enumerate(sections):
if i > 0:
# Skip including article title
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train | extract_references_from_wets | Extract references from WET files into sharded output files. | tensor2tensor/data_generators/wikisum/wikisum.py | def extract_references_from_wets(wet_files, metadata_dir, out_dir,
tmp_dir=None):
"""Extract references from WET files into sharded output files."""
# Setup output files
shard_files = make_ref_shard_files(out_dir)
num_refs = 0
for i, wet_file in enumerate(wet_files):
num_... | def extract_references_from_wets(wet_files, metadata_dir, out_dir,
tmp_dir=None):
"""Extract references from WET files into sharded output files."""
# Setup output files
shard_files = make_ref_shard_files(out_dir)
num_refs = 0
for i, wet_file in enumerate(wet_files):
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train | _dump_to_pages | Extract pages from an xml dump.
Args:
dump: a unicode string
Returns:
a list of unicode strings | tensor2tensor/data_generators/wiki.py | def _dump_to_pages(dump):
"""Extract pages from an xml dump.
Args:
dump: a unicode string
Returns:
a list of unicode strings
"""
pos = 0
ret = []
start_tag = u"<page>\n"
end_tag = u"</page>\n"
while True:
start_pos = dump.find(start_tag, pos)
if start_pos == -1:
break
start_... | def _dump_to_pages(dump):
"""Extract pages from an xml dump.
Args:
dump: a unicode string
Returns:
a list of unicode strings
"""
pos = 0
ret = []
start_tag = u"<page>\n"
end_tag = u"</page>\n"
while True:
start_pos = dump.find(start_tag, pos)
if start_pos == -1:
break
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train | _page_to_title | Extract the title from a page.
Args:
page: a unicode string
Returns:
a unicode string | tensor2tensor/data_generators/wiki.py | def _page_to_title(page):
"""Extract the title from a page.
Args:
page: a unicode string
Returns:
a unicode string
"""
# print("page=%s" % page)
start_tag = u"<title>"
end_tag = u"</title>"
start_pos = page.find(start_tag)
end_pos = page.find(end_tag)
assert start_pos != -1
assert end_pos... | def _page_to_title(page):
"""Extract the title from a page.
Args:
page: a unicode string
Returns:
a unicode string
"""
# print("page=%s" % page)
start_tag = u"<title>"
end_tag = u"</title>"
start_pos = page.find(start_tag)
end_pos = page.find(end_tag)
assert start_pos != -1
assert end_pos... | [
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train | _page_to_text | Extract the text from a page.
Args:
page: a unicode string
Returns:
a unicode string | tensor2tensor/data_generators/wiki.py | def _page_to_text(page):
"""Extract the text from a page.
Args:
page: a unicode string
Returns:
a unicode string
"""
# text start tag looks like "<text ..otherstuff>"
start_pos = page.find(u"<text")
assert start_pos != -1
end_tag_pos = page.find(u">", start_pos)
assert end_tag_pos != -1
end... | def _page_to_text(page):
"""Extract the text from a page.
Args:
page: a unicode string
Returns:
a unicode string
"""
# text start tag looks like "<text ..otherstuff>"
start_pos = page.find(u"<text")
assert start_pos != -1
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train | _find_and_replace | Remove everything found between instances of start_string and end_string.
Replace each such instance with replace_fn(removed_text)
e.g. _find_and_replace(u"the [[fat]] cat [[sat]]", u"[[", u"]]", lambda x: x)
= u"the fat cat sat"
Args:
text: a unicode string
start_string: a unicode string
end_s... | tensor2tensor/data_generators/wiki.py | def _find_and_replace(text, start_string, end_string, replace_fn):
"""Remove everything found between instances of start_string and end_string.
Replace each such instance with replace_fn(removed_text)
e.g. _find_and_replace(u"the [[fat]] cat [[sat]]", u"[[", u"]]", lambda x: x)
= u"the fat cat sat"
Args:... | def _find_and_replace(text, start_string, end_string, replace_fn):
"""Remove everything found between instances of start_string and end_string.
Replace each such instance with replace_fn(removed_text)
e.g. _find_and_replace(u"the [[fat]] cat [[sat]]", u"[[", u"]]", lambda x: x)
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train | _remove_double_brackets | Remove double brackets (internal links) but leave the viewable text.
Args:
text: a unicode string
Returns:
a unicode string | tensor2tensor/data_generators/wiki.py | def _remove_double_brackets(text):
"""Remove double brackets (internal links) but leave the viewable text.
Args:
text: a unicode string
Returns:
a unicode string
"""
def replacement_fn(s):
if u":" in s:
# this is probably a category or something like that.
return ""
# keep the par... | def _remove_double_brackets(text):
"""Remove double brackets (internal links) but leave the viewable text.
Args:
text: a unicode string
Returns:
a unicode string
"""
def replacement_fn(s):
if u":" in s:
# this is probably a category or something like that.
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train | image_encoder | A stack of self attention layers. | tensor2tensor/models/research/vqa_self_attention.py | def image_encoder(image_feat,
hparams,
name="image_encoder",
save_weights_to=None,
make_image_summary=True):
"""A stack of self attention layers."""
x = image_feat
image_hidden_size = hparams.image_hidden_size or hparams.hidden_size
image_... | def image_encoder(image_feat,
hparams,
name="image_encoder",
save_weights_to=None,
make_image_summary=True):
"""A stack of self attention layers."""
x = image_feat
image_hidden_size = hparams.image_hidden_size or hparams.hidden_size
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train | prepare_question_encoder | Prepare question encoder.
Args:
inputs: a Tensor.
hparams: run hyperparameters
Returns:
encoder_input: a Tensor, bottom of encoder stack
encoder_self_attention_bias: a bias tensor for use in encoder self-attention | tensor2tensor/models/research/vqa_self_attention.py | def prepare_question_encoder(inputs, hparams):
"""Prepare question encoder.
Args:
inputs: a Tensor.
hparams: run hyperparameters
Returns:
encoder_input: a Tensor, bottom of encoder stack
encoder_self_attention_bias: a bias tensor for use in encoder self-attention
"""
encoder_input = inputs
... | def prepare_question_encoder(inputs, hparams):
"""Prepare question encoder.
Args:
inputs: a Tensor.
hparams: run hyperparameters
Returns:
encoder_input: a Tensor, bottom of encoder stack
encoder_self_attention_bias: a bias tensor for use in encoder self-attention
"""
encoder_input = inputs
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train | question_encoder | A stack of self attention layers. | tensor2tensor/models/research/vqa_self_attention.py | def question_encoder(question,
question_self_attention_bias,
hparams,
name="question_encoder",
save_weights_to=None,
make_image_summary=True):
"""A stack of self attention layers."""
x = question
with tf.varia... | def question_encoder(question,
question_self_attention_bias,
hparams,
name="question_encoder",
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make_image_summary=True):
"""A stack of self attention layers."""
x = question
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train | attn | Attention on image feature with question as query. | tensor2tensor/models/research/vqa_self_attention.py | def attn(image_feat,
query,
hparams,
name="attn",
save_weights_to=None,
make_image_summary=True):
"""Attention on image feature with question as query."""
with tf.variable_scope(name, "attn", values=[image_feat, query]):
total_key_depth = hparams.attention_key_channe... | def attn(image_feat,
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hparams,
name="attn",
save_weights_to=None,
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"""Attention on image feature with question as query."""
with tf.variable_scope(name, "attn", values=[image_feat, query]):
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train | mlp | Multi layer perceptron with dropout and relu activation. | tensor2tensor/models/research/vqa_self_attention.py | def mlp(feature, hparams, name="mlp"):
"""Multi layer perceptron with dropout and relu activation."""
with tf.variable_scope(name, "mlp", values=[feature]):
num_mlp_layers = hparams.num_mlp_layers
mlp_size = hparams.mlp_size
for _ in range(num_mlp_layers):
feature = common_layers.dense(feature, ml... | def mlp(feature, hparams, name="mlp"):
"""Multi layer perceptron with dropout and relu activation."""
with tf.variable_scope(name, "mlp", values=[feature]):
num_mlp_layers = hparams.num_mlp_layers
mlp_size = hparams.mlp_size
for _ in range(num_mlp_layers):
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train | prepare_image_question_encoder | Prepare encoder.
Args:
image_feat: a Tensor.
question: a Tensor.
hparams: run hyperparameters
Returns:
encoder_input: a Tensor, bottom of encoder stack
encoder_self_attention_bias: a bias tensor for use in encoder self-attention | tensor2tensor/models/research/vqa_self_attention.py | def prepare_image_question_encoder(image_feat, question, hparams):
"""Prepare encoder.
Args:
image_feat: a Tensor.
question: a Tensor.
hparams: run hyperparameters
Returns:
encoder_input: a Tensor, bottom of encoder stack
encoder_self_attention_bias: a bias tensor for use in encoder self-att... | def prepare_image_question_encoder(image_feat, question, hparams):
"""Prepare encoder.
Args:
image_feat: a Tensor.
question: a Tensor.
hparams: run hyperparameters
Returns:
encoder_input: a Tensor, bottom of encoder stack
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train | image_question_encoder | A stack of self attention layers. | tensor2tensor/models/research/vqa_self_attention.py | def image_question_encoder(encoder_inputs,
encoder_self_attention_bias,
hparams,
query=None,
name="image_question_encoder",
save_weights_to=None,
make_image_s... | def image_question_encoder(encoder_inputs,
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] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/models/research/vqa_self_attention.py#L480-L557 | [
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train | decoder | A stack of transformer layers.
Args:
decoder_input: a Tensor
encoder_output: a Tensor
decoder_self_attention_bias: bias Tensor for self-attention
(see common_attention.attention_bias())
encoder_decoder_attention_bias: bias Tensor for encoder-decoder attention
(see common_attention.attenti... | tensor2tensor/models/research/vqa_self_attention.py | def decoder(decoder_input,
encoder_output,
decoder_self_attention_bias,
encoder_decoder_attention_bias,
hparams,
name="decoder",
save_weights_to=None,
make_image_summary=True,):
"""A stack of transformer layers.
Args:
decoder_i... | def decoder(decoder_input,
encoder_output,
decoder_self_attention_bias,
encoder_decoder_attention_bias,
hparams,
name="decoder",
save_weights_to=None,
make_image_summary=True,):
"""A stack of transformer layers.
Args:
decoder_i... | [
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train | iterative_encoder_decoder | Iterative encoder decoder. | tensor2tensor/models/research/vqa_self_attention.py | def iterative_encoder_decoder(encoder_input,
encoder_self_attention_bias,
encoder_decoder_attention_bias,
query,
hparams):
"""Iterative encoder decoder."""
for _ in range(hparams.num_rec_steps):
... | def iterative_encoder_decoder(encoder_input,
encoder_self_attention_bias,
encoder_decoder_attention_bias,
query,
hparams):
"""Iterative encoder decoder."""
for _ in range(hparams.num_rec_steps):
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] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/models/research/vqa_self_attention.py#L654-L678 | [
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train | vqa_self_attention_base | VQA attention baseline hparams. | tensor2tensor/models/research/vqa_self_attention.py | def vqa_self_attention_base():
"""VQA attention baseline hparams."""
hparams = common_hparams.basic_params1()
hparams.batch_size = 128
hparams.use_fixed_batch_size = True,
hparams.optimizer = "adam"
hparams.optimizer_adam_beta1 = 0.9
hparams.optimizer_adam_beta2 = 0.997
hparams.optimizer_adam_epsilon = ... | def vqa_self_attention_base():
"""VQA attention baseline hparams."""
hparams = common_hparams.basic_params1()
hparams.batch_size = 128
hparams.use_fixed_batch_size = True,
hparams.optimizer = "adam"
hparams.optimizer_adam_beta1 = 0.9
hparams.optimizer_adam_beta2 = 0.997
hparams.optimizer_adam_epsilon = ... | [
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] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/models/research/vqa_self_attention.py#L682-L756 | [
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train | vqa_self_attention_feature_batch1024_big | Big model. | tensor2tensor/models/research/vqa_self_attention.py | def vqa_self_attention_feature_batch1024_big():
"""Big model."""
hparams = vqa_self_attention_feature_batch1024()
hparams.learning_rate_constant = 7e-4
hparams.batch_size = 256
hparams.hidden_size = 1024
hparams.filter_size = 4096
hparams.num_heads = 16
hparams.layer_prepostprocess_dropout = 0.3
hpara... | def vqa_self_attention_feature_batch1024_big():
"""Big model."""
hparams = vqa_self_attention_feature_batch1024()
hparams.learning_rate_constant = 7e-4
hparams.batch_size = 256
hparams.hidden_size = 1024
hparams.filter_size = 4096
hparams.num_heads = 16
hparams.layer_prepostprocess_dropout = 0.3
hpara... | [
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] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/models/research/vqa_self_attention.py#L774-L785 | [
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train | _bucket_boundaries | A default set of length-bucket boundaries. | tensor2tensor/utils/data_reader.py | def _bucket_boundaries(max_length, min_length=8, length_bucket_step=1.1):
"""A default set of length-bucket boundaries."""
assert length_bucket_step > 1.0
x = min_length
boundaries = []
while x < max_length:
boundaries.append(x)
x = max(x + 1, int(x * length_bucket_step))
return boundaries | def _bucket_boundaries(max_length, min_length=8, length_bucket_step=1.1):
"""A default set of length-bucket boundaries."""
assert length_bucket_step > 1.0
x = min_length
boundaries = []
while x < max_length:
boundaries.append(x)
x = max(x + 1, int(x * length_bucket_step))
return boundaries | [
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train | batching_scheme | A batching scheme based on model hyperparameters.
Every batch contains a number of sequences divisible by `shard_multiplier`.
Args:
batch_size: int, total number of tokens in a batch.
max_length: int, sequences longer than this will be skipped. Defaults to
batch_size.
min_length_bucket: int
... | tensor2tensor/utils/data_reader.py | def batching_scheme(batch_size,
max_length,
min_length_bucket,
length_bucket_step,
drop_long_sequences=False,
shard_multiplier=1,
length_multiplier=1,
min_length=0):
"""A batchin... | def batching_scheme(batch_size,
max_length,
min_length_bucket,
length_bucket_step,
drop_long_sequences=False,
shard_multiplier=1,
length_multiplier=1,
min_length=0):
"""A batchin... | [
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] | tensorflow/tensor2tensor | python | https://github.com/tensorflow/tensor2tensor/blob/272500b6efe353aeb638d2745ed56e519462ca31/tensor2tensor/utils/data_reader.py#L80-L164 | [
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train | hparams_to_batching_scheme | Wrapper around _batching_scheme with hparams. | tensor2tensor/utils/data_reader.py | def hparams_to_batching_scheme(hparams,
drop_long_sequences=False,
shard_multiplier=1,
length_multiplier=1):
"""Wrapper around _batching_scheme with hparams."""
return batching_scheme(
batch_size=hparams.batch_size,
... | def hparams_to_batching_scheme(hparams,
drop_long_sequences=False,
shard_multiplier=1,
length_multiplier=1):
"""Wrapper around _batching_scheme with hparams."""
return batching_scheme(
batch_size=hparams.batch_size,
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train | pad_for_tpu | Pads unknown features' dimensions for TPU. | tensor2tensor/utils/data_reader.py | def pad_for_tpu(shapes_dict, hparams, max_length):
"""Pads unknown features' dimensions for TPU."""
padded_shapes = {}
def get_filler(specified_max_length):
if not specified_max_length:
return max_length
return min(specified_max_length, max_length)
inputs_none_filler = get_filler(hparams.max_inp... | def pad_for_tpu(shapes_dict, hparams, max_length):
"""Pads unknown features' dimensions for TPU."""
padded_shapes = {}
def get_filler(specified_max_length):
if not specified_max_length:
return max_length
return min(specified_max_length, max_length)
inputs_none_filler = get_filler(hparams.max_inp... | [
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train | standardize_shapes | Set the right shapes for the features. | tensor2tensor/utils/data_reader.py | def standardize_shapes(features, batch_size=None):
"""Set the right shapes for the features."""
for fname in ["inputs", "targets"]:
if fname not in features:
continue
f = features[fname]
while len(f.get_shape()) < 4:
f = tf.expand_dims(f, axis=-1)
features[fname] = f
if batch_size:
... | def standardize_shapes(features, batch_size=None):
"""Set the right shapes for the features."""
for fname in ["inputs", "targets"]:
if fname not in features:
continue
f = features[fname]
while len(f.get_shape()) < 4:
f = tf.expand_dims(f, axis=-1)
features[fname] = f
if batch_size:
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train | _file_num_records_cached | Return the number of TFRecords in a file. | tensor2tensor/utils/data_reader.py | def _file_num_records_cached(filename):
"""Return the number of TFRecords in a file."""
# Cache the result, as this is expensive to compute
if filename in _file_num_records_cache:
return _file_num_records_cache[filename]
ret = 0
for _ in tf.python_io.tf_record_iterator(filename):
ret += 1
_file_num_... | def _file_num_records_cached(filename):
"""Return the number of TFRecords in a file."""
# Cache the result, as this is expensive to compute
if filename in _file_num_records_cache:
return _file_num_records_cache[filename]
ret = 0
for _ in tf.python_io.tf_record_iterator(filename):
ret += 1
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train | pad_batch | Pad batch dim of features to nearest multiple of batch_multiple. | tensor2tensor/utils/data_reader.py | def pad_batch(features, batch_multiple):
"""Pad batch dim of features to nearest multiple of batch_multiple."""
feature = list(features.items())[0][1]
batch_size = tf.shape(feature)[0]
mod = batch_size % batch_multiple
has_mod = tf.cast(tf.cast(mod, tf.bool), tf.int32)
batch_padding = batch_multiple * has_m... | def pad_batch(features, batch_multiple):
"""Pad batch dim of features to nearest multiple of batch_multiple."""
feature = list(features.items())[0][1]
batch_size = tf.shape(feature)[0]
mod = batch_size % batch_multiple
has_mod = tf.cast(tf.cast(mod, tf.bool), tf.int32)
batch_padding = batch_multiple * has_m... | [
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train | input_fn | Builds input pipeline for problem.
Args:
dataset: the dataset to make input function from.
filepattern: the pattern of files to read from.
skip_random_fraction_when_training: whether to skip randomly when training.
batch_size_means_tokens_param: whether batch size should mean tokens.
batch_size_m... | tensor2tensor/utils/data_reader.py | def input_fn(dataset,
filepattern,
skip_random_fraction_when_training,
batch_size_means_tokens_param,
batch_size_multiplier,
max_length,
mode,
hparams,
data_dir=None,
params=None,
config=Non... | def input_fn(dataset,
filepattern,
skip_random_fraction_when_training,
batch_size_means_tokens_param,
batch_size_multiplier,
max_length,
mode,
hparams,
data_dir=None,
params=None,
config=Non... | [
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train | generate_shard_args | Generate start and end indices per outfile. | tensor2tensor/data_generators/gene_expression.py | def generate_shard_args(outfiles, num_examples):
"""Generate start and end indices per outfile."""
num_shards = len(outfiles)
num_examples_per_shard = num_examples // num_shards
start_idxs = [i * num_examples_per_shard for i in range(num_shards)]
end_idxs = list(start_idxs)
end_idxs.pop(0)
end_idxs.append... | def generate_shard_args(outfiles, num_examples):
"""Generate start and end indices per outfile."""
num_shards = len(outfiles)
num_examples_per_shard = num_examples // num_shards
start_idxs = [i * num_examples_per_shard for i in range(num_shards)]
end_idxs = list(start_idxs)
end_idxs.pop(0)
end_idxs.append... | [
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