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22,800 | tensorflow/tensor2tensor | tensor2tensor/utils/decoding.py | run_postdecode_hooks | def run_postdecode_hooks(decode_hook_args, dataset_split):
"""Run hooks after decodes have run."""
hooks = decode_hook_args.problem.decode_hooks
if not hooks:
return
global_step = latest_checkpoint_step(decode_hook_args.estimator.model_dir)
if global_step is None:
tf.logging.info(
"Skipping de... | python | def run_postdecode_hooks(decode_hook_args, dataset_split):
"""Run hooks after decodes have run."""
hooks = decode_hook_args.problem.decode_hooks
if not hooks:
return
global_step = latest_checkpoint_step(decode_hook_args.estimator.model_dir)
if global_step is None:
tf.logging.info(
"Skipping de... | [
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22,801 | tensorflow/tensor2tensor | tensor2tensor/data_generators/style_transfer.py | StyleTransferProblemShakespeare.dataset_splits | def dataset_splits(self):
"""Splits of data to produce and number of output shards for each."""
return [{
"split": problem.DatasetSplit.TRAIN,
"shards": _TRAIN_SHARDS,
}, {
"split": problem.DatasetSplit.EVAL,
"shards": _DEV_SHARDS,
}] | python | def dataset_splits(self):
"""Splits of data to produce and number of output shards for each."""
return [{
"split": problem.DatasetSplit.TRAIN,
"shards": _TRAIN_SHARDS,
}, {
"split": problem.DatasetSplit.EVAL,
"shards": _DEV_SHARDS,
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22,802 | tensorflow/tensor2tensor | tensor2tensor/models/mtf_image_transformer.py | local_attention1d_spatial_decoder | def local_attention1d_spatial_decoder(x, kv_dim, heads_dim,
feedforward_dim, hparams):
"""Image Transformer decoder with local1D spatial layers."""
batch_dim, length_dim, model_dim = x.shape.dims
blocks_w_dim = mtf.Dimension("blocksw", hparams.block_length)
num_w_blocks_dim... | python | def local_attention1d_spatial_decoder(x, kv_dim, heads_dim,
feedforward_dim, hparams):
"""Image Transformer decoder with local1D spatial layers."""
batch_dim, length_dim, model_dim = x.shape.dims
blocks_w_dim = mtf.Dimension("blocksw", hparams.block_length)
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22,803 | tensorflow/tensor2tensor | tensor2tensor/models/mtf_image_transformer.py | local_attention2d_spatial_decoder | def local_attention2d_spatial_decoder(x, kv_dim, heads_dim,
feedforward_dim, hparams):
"""Image Transformer decoder with local2D spatial layers."""
batch_dim, length_dim, model_dim = x.shape.dims
blocks_h_dim = mtf.Dimension("blocksh", hparams.block_height)
blocks_w_dim = m... | python | def local_attention2d_spatial_decoder(x, kv_dim, heads_dim,
feedforward_dim, hparams):
"""Image Transformer decoder with local2D spatial layers."""
batch_dim, length_dim, model_dim = x.shape.dims
blocks_h_dim = mtf.Dimension("blocksh", hparams.block_height)
blocks_w_dim = m... | [
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22,804 | tensorflow/tensor2tensor | tensor2tensor/models/mtf_image_transformer.py | local_attention1d_masked_decoder | def local_attention1d_masked_decoder(x, kv_dim, heads_dim,
feedforward_dim, hparams):
"""Image Transformer decoder with local1D masked layers."""
print(x)
_, length_dim, model_dim = x.shape.dims
for layer in range(hparams.num_decoder_layers):
layer_name = "decoder_layer_... | python | def local_attention1d_masked_decoder(x, kv_dim, heads_dim,
feedforward_dim, hparams):
"""Image Transformer decoder with local1D masked layers."""
print(x)
_, length_dim, model_dim = x.shape.dims
for layer in range(hparams.num_decoder_layers):
layer_name = "decoder_layer_... | [
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22,805 | tensorflow/tensor2tensor | tensor2tensor/layers/reversible_layers.py | create_degrees | def create_degrees(input_dim,
hidden_dims,
input_order='left-to-right',
hidden_order='left-to-right'):
"""Returns a list of degree vectors, one for each input and hidden layer.
A unit with degree d can only receive input from units with degree < d. Output
... | python | def create_degrees(input_dim,
hidden_dims,
input_order='left-to-right',
hidden_order='left-to-right'):
"""Returns a list of degree vectors, one for each input and hidden layer.
A unit with degree d can only receive input from units with degree < d. Output
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22,806 | tensorflow/tensor2tensor | tensor2tensor/layers/reversible_layers.py | create_masks | def create_masks(input_dim,
hidden_dims,
input_order='left-to-right',
hidden_order='left-to-right'):
"""Returns a list of binary mask matrices respecting autoregressive ordering.
Args:
input_dim: Number of inputs.
hidden_dims: list with the number of hidde... | python | def create_masks(input_dim,
hidden_dims,
input_order='left-to-right',
hidden_order='left-to-right'):
"""Returns a list of binary mask matrices respecting autoregressive ordering.
Args:
input_dim: Number of inputs.
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22,807 | tensorflow/tensor2tensor | tensor2tensor/layers/reversible_layers.py | sinkhorn | def sinkhorn(inputs, n_iters=20):
"""Performs incomplete Sinkhorn normalization to inputs.
By a theorem by Sinkhorn and Knopp [1], a sufficiently well-behaved matrix
with positive entries can be turned into a doubly-stochastic matrix
(i.e. its rows and columns add up to one) via the succesive row and column
... | python | def sinkhorn(inputs, n_iters=20):
"""Performs incomplete Sinkhorn normalization to inputs.
By a theorem by Sinkhorn and Knopp [1], a sufficiently well-behaved matrix
with positive entries can be turned into a doubly-stochastic matrix
(i.e. its rows and columns add up to one) via the succesive row and column
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22,808 | tensorflow/tensor2tensor | tensor2tensor/layers/vq_discrete.py | DiscreteBottleneck.slice_hidden | def slice_hidden(self, x):
"""Slice encoder hidden state into block_dim.
Args:
x: Encoder hidden state of shape [-1, hidden_size].
Returns:
Sliced states of shape [-1, num_blocks, block_dim].
"""
x_sliced = tf.reshape(
x, shape=[-1, self.hparams.num_blocks, self.hparams.blo... | python | def slice_hidden(self, x):
"""Slice encoder hidden state into block_dim.
Args:
x: Encoder hidden state of shape [-1, hidden_size].
Returns:
Sliced states of shape [-1, num_blocks, block_dim].
"""
x_sliced = tf.reshape(
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22,809 | tensorflow/tensor2tensor | tensor2tensor/layers/vq_discrete.py | DiscreteBottleneck.embedding_lookup | def embedding_lookup(self, x, means):
"""Compute nearest neighbors and loss for training the embeddings.
Args:
x: Batch of encoder continuous latent states sliced/projected into
shape
[-1, num_blocks, block_dim].
means: Embedding means.
Returns:
The nearest neighbor... | python | def embedding_lookup(self, x, means):
"""Compute nearest neighbors and loss for training the embeddings.
Args:
x: Batch of encoder continuous latent states sliced/projected into
shape
[-1, num_blocks, block_dim].
means: Embedding means.
Returns:
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22,810 | tensorflow/tensor2tensor | tensor2tensor/layers/vq_discrete.py | DiscreteBottleneck.discrete_bottleneck | def discrete_bottleneck(self, x):
"""Discretization bottleneck for latent variables.
Args:
x: Input to the discretization bottleneck.
Returns:
Embedding to pass to the decoder, discrete latent, loss, and the
embedding
function.
Raises:
ValueError: If projection... | python | def discrete_bottleneck(self, x):
"""Discretization bottleneck for latent variables.
Args:
x: Input to the discretization bottleneck.
Returns:
Embedding to pass to the decoder, discrete latent, loss, and the
embedding
function.
Raises:
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22,811 | tensorflow/tensor2tensor | tensor2tensor/models/research/adafactor_experiments.py | mimic_adam_with_adafactor | def mimic_adam_with_adafactor(hparams):
"""Switch from Adam to Adafactor, approximating the behavior of Adam.
Some minor things may be different, like epsilon and beta1 correction.
Args:
hparams: model hyperparameters where "adam" in hparams.optimizer
"""
assert "adam" in hparams.optimizer
hparams.opt... | python | def mimic_adam_with_adafactor(hparams):
"""Switch from Adam to Adafactor, approximating the behavior of Adam.
Some minor things may be different, like epsilon and beta1 correction.
Args:
hparams: model hyperparameters where "adam" in hparams.optimizer
"""
assert "adam" in hparams.optimizer
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22,812 | tensorflow/tensor2tensor | tensor2tensor/models/research/adafactor_experiments.py | afx_adam | def afx_adam():
"""Old version - Adam."""
hparams = transformer.transformer_base_v2()
hparams.optimizer_adam_beta1 = 0.9
hparams.optimizer_adam_beta2 = 0.999
hparams.symbol_modality_num_shards = 1
hparams.batch_size = 2048
hparams.optimizer = "adam"
hparams.learning_rate_schedule = (
"constant*rsq... | python | def afx_adam():
"""Old version - Adam."""
hparams = transformer.transformer_base_v2()
hparams.optimizer_adam_beta1 = 0.9
hparams.optimizer_adam_beta2 = 0.999
hparams.symbol_modality_num_shards = 1
hparams.batch_size = 2048
hparams.optimizer = "adam"
hparams.learning_rate_schedule = (
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22,813 | tensorflow/tensor2tensor | tensor2tensor/models/research/adafactor_experiments.py | afx_adafactor | def afx_adafactor():
"""Adafactor with recommended learning rate schedule."""
hparams = afx_adam()
hparams.optimizer = "Adafactor"
hparams.learning_rate_schedule = "rsqrt_decay"
hparams.learning_rate_warmup_steps = 10000
return hparams | python | def afx_adafactor():
"""Adafactor with recommended learning rate schedule."""
hparams = afx_adam()
hparams.optimizer = "Adafactor"
hparams.learning_rate_schedule = "rsqrt_decay"
hparams.learning_rate_warmup_steps = 10000
return hparams | [
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22,814 | tensorflow/tensor2tensor | tensor2tensor/models/research/adafactor_experiments.py | afx_small | def afx_small():
"""Small transformer model with small batch size for fast step times."""
hparams = transformer.transformer_tpu()
hparams.filter_size = 1024
hparams.num_heads = 4
hparams.num_hidden_layers = 3
hparams.batch_size = 512
return hparams | python | def afx_small():
"""Small transformer model with small batch size for fast step times."""
hparams = transformer.transformer_tpu()
hparams.filter_size = 1024
hparams.num_heads = 4
hparams.num_hidden_layers = 3
hparams.batch_size = 512
return hparams | [
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22,815 | tensorflow/tensor2tensor | tensor2tensor/models/video/emily.py | next_frame_emily | def next_frame_emily():
"""Emily's model hparams."""
hparams = sv2p_params.next_frame_sv2p()
hparams.video_num_input_frames = 2
hparams.video_num_target_frames = 10
hparams.learning_rate_constant = 1e-4
seq_length = hparams.video_num_input_frames + hparams.video_num_target_frames
# The latent_loss_multipl... | python | def next_frame_emily():
"""Emily's model hparams."""
hparams = sv2p_params.next_frame_sv2p()
hparams.video_num_input_frames = 2
hparams.video_num_target_frames = 10
hparams.learning_rate_constant = 1e-4
seq_length = hparams.video_num_input_frames + hparams.video_num_target_frames
# The latent_loss_multipl... | [
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22,816 | tensorflow/tensor2tensor | tensor2tensor/data_generators/inspect_tfrecord.py | main | def main(_):
"""Convert a file to examples."""
if FLAGS.subword_text_encoder_filename:
encoder = text_encoder.SubwordTextEncoder(
FLAGS.subword_text_encoder_filename)
elif FLAGS.token_text_encoder_filename:
encoder = text_encoder.TokenTextEncoder(FLAGS.token_text_encoder_filename)
elif FLAGS.byt... | python | def main(_):
"""Convert a file to examples."""
if FLAGS.subword_text_encoder_filename:
encoder = text_encoder.SubwordTextEncoder(
FLAGS.subword_text_encoder_filename)
elif FLAGS.token_text_encoder_filename:
encoder = text_encoder.TokenTextEncoder(FLAGS.token_text_encoder_filename)
elif FLAGS.byt... | [
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22,817 | tensorflow/tensor2tensor | tensor2tensor/envs/rendered_env_problem.py | RenderedEnvProblem.example_reading_spec | def example_reading_spec(self):
"""Return a mix of env and video data fields and decoders."""
video_fields, video_decoders = (
video_utils.VideoProblem.example_reading_spec(self))
env_fields, env_decoders = env_problem.EnvProblem.example_reading_spec(self)
# Remove raw observations field since ... | python | def example_reading_spec(self):
"""Return a mix of env and video data fields and decoders."""
video_fields, video_decoders = (
video_utils.VideoProblem.example_reading_spec(self))
env_fields, env_decoders = env_problem.EnvProblem.example_reading_spec(self)
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22,818 | tensorflow/tensor2tensor | tensor2tensor/envs/rendered_env_problem.py | RenderedEnvProblem._generate_time_steps | def _generate_time_steps(self, trajectory_list):
"""Transforms time step observations to frames of a video."""
for time_step in env_problem.EnvProblem._generate_time_steps(
self, trajectory_list):
# Convert the rendered observations from numpy to png format.
frame_np = np.array(time_step.pop... | python | def _generate_time_steps(self, trajectory_list):
"""Transforms time step observations to frames of a video."""
for time_step in env_problem.EnvProblem._generate_time_steps(
self, trajectory_list):
# Convert the rendered observations from numpy to png format.
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22,819 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | text2class_txt_iterator | def text2class_txt_iterator(source_txt_path, label_txt_path, class_strs=None):
"""Yield dicts for Text2ClassProblem.generate_samples from lines of files.
Args:
source_txt_path: txt file with record per line.
label_txt_path: txt file with label per line, either as int or str. If
string, must provide c... | python | def text2class_txt_iterator(source_txt_path, label_txt_path, class_strs=None):
"""Yield dicts for Text2ClassProblem.generate_samples from lines of files.
Args:
source_txt_path: txt file with record per line.
label_txt_path: txt file with label per line, either as int or str. If
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label_txt_path: txt file with label per line, either as int or str. If
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22,820 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | text2text_txt_tab_iterator | def text2text_txt_tab_iterator(txt_path):
"""Yield dicts for Text2TextProblem.generate_samples from lines of txt_path.
Args:
txt_path: path to txt file with a record per line, source and target
are tab-separated.
Yields:
{"inputs": inputs, "targets": targets}
"""
for line in txt_line_iterator(... | python | def text2text_txt_tab_iterator(txt_path):
"""Yield dicts for Text2TextProblem.generate_samples from lines of txt_path.
Args:
txt_path: path to txt file with a record per line, source and target
are tab-separated.
Yields:
{"inputs": inputs, "targets": targets}
"""
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22,821 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | text2text_generate_encoded | def text2text_generate_encoded(sample_generator,
vocab,
targets_vocab=None,
has_inputs=True,
inputs_prefix="",
targets_prefix=""):
"""Encode Text2Text samples from... | python | def text2text_generate_encoded(sample_generator,
vocab,
targets_vocab=None,
has_inputs=True,
inputs_prefix="",
targets_prefix=""):
"""Encode Text2Text samples from... | [
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22,822 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | Text2TextProblem._pack_fn | def _pack_fn(self):
"""For packed datasets, returns a function to pack examples.
Returns:
None or a function from list of TFRecords to list of TFRecords
"""
if not self.packed_length:
return None
def my_fn(records):
"""Function from list of TFRecords to list of TFRecords."""
... | python | def _pack_fn(self):
"""For packed datasets, returns a function to pack examples.
Returns:
None or a function from list of TFRecords to list of TFRecords
"""
if not self.packed_length:
return None
def my_fn(records):
"""Function from list of TFRecords to list of TFRecords."""
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22,823 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | Text2TextProblem._maybe_pack_examples | def _maybe_pack_examples(self, generator):
"""Wraps generator with packer if self.packed_length."""
if not self.packed_length:
return generator
return generator_utils.pack_examples(
generator,
self.has_inputs,
self.packed_length,
spacing=self.packed_spacing,
cho... | python | def _maybe_pack_examples(self, generator):
"""Wraps generator with packer if self.packed_length."""
if not self.packed_length:
return generator
return generator_utils.pack_examples(
generator,
self.has_inputs,
self.packed_length,
spacing=self.packed_spacing,
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22,824 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | ChoppedTextProblem.text_filepaths_for_task | def text_filepaths_for_task(self, tmp_dir, task_id):
"""List of input filepaths for a particular training or dev shard.
Args:
tmp_dir: a string
task_id: an integer less than self.num_shards
Returns:
a list of tuples (filepath, start_pos, num_bytes)
"""
assert task_id >= 0
asse... | python | def text_filepaths_for_task(self, tmp_dir, task_id):
"""List of input filepaths for a particular training or dev shard.
Args:
tmp_dir: a string
task_id: an integer less than self.num_shards
Returns:
a list of tuples (filepath, start_pos, num_bytes)
"""
assert task_id >= 0
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22,825 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | ChoppedTextProblem.filepath_to_unicode_strings | def filepath_to_unicode_strings(self, filepath):
"""Read text out of an input file.
The default just reads the text, converts to unicode and yields one
unicode string.
Subclasses can override this function in order to preprocess, and can
yield any number of strings.
Args:
filepath: a st... | python | def filepath_to_unicode_strings(self, filepath):
"""Read text out of an input file.
The default just reads the text, converts to unicode and yields one
unicode string.
Subclasses can override this function in order to preprocess, and can
yield any number of strings.
Args:
filepath: a st... | [
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22,826 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | ChoppedTextProblem.file_generator | def file_generator(self,
filepaths,
max_chars_per_file=None,
max_chars_total=None):
"""Read complete text of input files and yield unicode strings.
By default, one unicode string is produced per file, but this is
not guaranteed, since subclasse... | python | def file_generator(self,
filepaths,
max_chars_per_file=None,
max_chars_total=None):
"""Read complete text of input files and yield unicode strings.
By default, one unicode string is produced per file, but this is
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22,827 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | ChoppedTextProblem.example_generator | def example_generator(self, encoder, tmp_dir, task_id):
"""Generator for examples.
Args:
encoder: a TextEncoder
tmp_dir: a string
task_id: an integer
Yields:
feature dictionaries
"""
filepaths = self.text_filepaths_for_task(tmp_dir, task_id)
if task_id >= self.num_train_... | python | def example_generator(self, encoder, tmp_dir, task_id):
"""Generator for examples.
Args:
encoder: a TextEncoder
tmp_dir: a string
task_id: an integer
Yields:
feature dictionaries
"""
filepaths = self.text_filepaths_for_task(tmp_dir, task_id)
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22,828 | tensorflow/tensor2tensor | tensor2tensor/data_generators/text_problems.py | ChoppedTextProblem.prepare_to_generate | def prepare_to_generate(self, data_dir, tmp_dir):
"""Make sure that the data is prepared and the vocab is generated."""
self.get_or_create_vocab(data_dir, tmp_dir)
self.train_text_filepaths(tmp_dir)
self.dev_text_filepaths(tmp_dir) | python | def prepare_to_generate(self, data_dir, tmp_dir):
"""Make sure that the data is prepared and the vocab is generated."""
self.get_or_create_vocab(data_dir, tmp_dir)
self.train_text_filepaths(tmp_dir)
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22,829 | tensorflow/tensor2tensor | tensor2tensor/trax/models/resnet.py | ConvBlock | def ConvBlock(kernel_size, filters, strides):
"""ResNet convolutional striding block."""
ks = kernel_size
filters1, filters2, filters3 = filters
main = layers.Serial(
layers.Conv(filters1, (1, 1), strides),
layers.BatchNorm(),
layers.Relu(),
layers.Conv(filters2, (ks, ks), padding='SAME'... | python | def ConvBlock(kernel_size, filters, strides):
"""ResNet convolutional striding block."""
ks = kernel_size
filters1, filters2, filters3 = filters
main = layers.Serial(
layers.Conv(filters1, (1, 1), strides),
layers.BatchNorm(),
layers.Relu(),
layers.Conv(filters2, (ks, ks), padding='SAME'... | [
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22,830 | tensorflow/tensor2tensor | tensor2tensor/trax/models/resnet.py | IdentityBlock | def IdentityBlock(kernel_size, filters):
"""ResNet identical size block."""
ks = kernel_size
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main = layers.Serial(
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"""ResNet identical size block."""
ks = kernel_size
filters1, filters2, filters3 = filters
main = layers.Serial(
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22,831 | tensorflow/tensor2tensor | tensor2tensor/trax/models/resnet.py | WideResnetBlock | def WideResnetBlock(channels, strides=(1, 1), channel_mismatch=False):
"""WideResnet convolutational block."""
main = layers.Serial(layers.BatchNorm(), layers.Relu(),
layers.Conv(channels, (3, 3), strides, padding='SAME'),
layers.BatchNorm(), layers.Relu(),
... | python | def WideResnetBlock(channels, strides=(1, 1), channel_mismatch=False):
"""WideResnet convolutational block."""
main = layers.Serial(layers.BatchNorm(), layers.Relu(),
layers.Conv(channels, (3, 3), strides, padding='SAME'),
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22,832 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/rnn.py | GRUCell | def GRUCell(units):
"""Builds a traditional GRU cell with dense internal transformations.
Gated Recurrent Unit paper: https://arxiv.org/abs/1412.3555
Args:
units: Number of hidden units.
Returns:
A Stax model representing a traditional GRU RNN cell.
"""
return GeneralGRUCell(
candidate_tra... | python | def GRUCell(units):
"""Builds a traditional GRU cell with dense internal transformations.
Gated Recurrent Unit paper: https://arxiv.org/abs/1412.3555
Args:
units: Number of hidden units.
Returns:
A Stax model representing a traditional GRU RNN cell.
"""
return GeneralGRUCell(
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22,833 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/rnn.py | ConvGRUCell | def ConvGRUCell(units, kernel_size=(3, 3)):
"""Builds a convolutional GRU.
Paper: https://arxiv.org/abs/1511.06432.
Args:
units: Number of hidden units
kernel_size: Kernel size for convolution
Returns:
A Stax model representing a GRU cell with convolution transforms.
"""
def BuildConv():
... | python | def ConvGRUCell(units, kernel_size=(3, 3)):
"""Builds a convolutional GRU.
Paper: https://arxiv.org/abs/1511.06432.
Args:
units: Number of hidden units
kernel_size: Kernel size for convolution
Returns:
A Stax model representing a GRU cell with convolution transforms.
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22,834 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | MakeTargetMask | def MakeTargetMask(target, pad=0):
"""Create an attention mask to hide padding and future words."""
target_mask = (target != pad)[ :, np.newaxis, :]
target_dtype = target_mask.dtype
causal_mask = onp.tril(onp.ones((1, target.shape[-1], target.shape[-1]),
dtype=target_dtype), k=... | python | def MakeTargetMask(target, pad=0):
"""Create an attention mask to hide padding and future words."""
target_mask = (target != pad)[ :, np.newaxis, :]
target_dtype = target_mask.dtype
causal_mask = onp.tril(onp.ones((1, target.shape[-1], target.shape[-1]),
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22,835 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | PreparePairedSequenceBatch | def PreparePairedSequenceBatch(source, target_in, pad=0):
"""Build masks for this batch.
Args:
source: (batch, source_len) array of integer-coded symbols for inputs
target_in: (batch, batch_len) array of integer-coded symbols for targets
pad: int: the padding symbol used to pad the above
Returns:
... | python | def PreparePairedSequenceBatch(source, target_in, pad=0):
"""Build masks for this batch.
Args:
source: (batch, source_len) array of integer-coded symbols for inputs
target_in: (batch, batch_len) array of integer-coded symbols for targets
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22,836 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | PositionalEncoding | def PositionalEncoding(x, params, **unused_kwargs):
"""Implements bare positional encoding."""
if not isinstance(x, (list, tuple)): # non-chunked inputs
symbol_size = np.shape(x)[1]
return x + params[:, :symbol_size, :]
# Chunked case: apply to all chunks selecting as much as needed.
offset = 0
resul... | python | def PositionalEncoding(x, params, **unused_kwargs):
"""Implements bare positional encoding."""
if not isinstance(x, (list, tuple)): # non-chunked inputs
symbol_size = np.shape(x)[1]
return x + params[:, :symbol_size, :]
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22,837 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | DotProductAttention | def DotProductAttention(query, key, value, mask, dropout, mode, rng):
"""Core dot product self-attention.
Args:
query: array of representations
key: array of representations
value: array of representations
mask: attention-mask, gates attention
dropout: float: dropout rate
mode: 'eval' or 't... | python | def DotProductAttention(query, key, value, mask, dropout, mode, rng):
"""Core dot product self-attention.
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query: array of representations
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value: array of representations
mask: attention-mask, gates attention
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22,838 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | PureDotProductAttention | def PureDotProductAttention(dropout=0.0, mode='train'):
"""Pure single-headed self-attention.
Args:
dropout: float: dropout rate
mode: str: 'train' or 'eval'
Returns:
Pure single-headed attention layer. (No Dense transforms on input.)
"""
def init_fun(_, input_shapes): # pylint: disable=invalid... | python | def PureDotProductAttention(dropout=0.0, mode='train'):
"""Pure single-headed self-attention.
Args:
dropout: float: dropout rate
mode: str: 'train' or 'eval'
Returns:
Pure single-headed attention layer. (No Dense transforms on input.)
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22,839 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | PureMultiHeadedAttention | def PureMultiHeadedAttention(x, params, num_heads=8, dropout=0.0,
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"""Pure transformer-style multi-headed attention.
Args:
x: inputs ((q, k, v), mask)
params: parameters (none)
num_heads: int: number of attention heads
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mode='train', **kwargs):
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Args:
x: inputs ((q, k, v), mask)
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22,840 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | ChunkedAttentionSelector | def ChunkedAttentionSelector(x, params, selector=None, **kwargs):
"""Select which chunks to attend to in chunked attention.
Args:
x: inputs, a list of elements of the form (q, k, v), mask for each chunk.
params: parameters (unused).
selector: a function from chunk_number -> list of chunk numbers that s... | python | def ChunkedAttentionSelector(x, params, selector=None, **kwargs):
"""Select which chunks to attend to in chunked attention.
Args:
x: inputs, a list of elements of the form (q, k, v), mask for each chunk.
params: parameters (unused).
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22,841 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | ChunkedCausalMultiHeadedAttention | def ChunkedCausalMultiHeadedAttention(
feature_depth, num_heads=8, dropout=0.0, chunk_selector=None, mode='train'):
"""Transformer-style causal multi-headed attention operating on chunks.
Accepts inputs that are a list of chunks and applies causal attention.
Args:
feature_depth: int: depth of embedding... | python | def ChunkedCausalMultiHeadedAttention(
feature_depth, num_heads=8, dropout=0.0, chunk_selector=None, mode='train'):
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Accepts inputs that are a list of chunks and applies causal attention.
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22,842 | tensorflow/tensor2tensor | tensor2tensor/trax/layers/attention.py | ShiftRight | def ShiftRight(x, **unused_kwargs):
"""Layer to shift the tensor to the right by padding on axis 1."""
if not isinstance(x, (list, tuple)): # non-chunked inputs
pad_widths = [(0, 0), (1, 0)]
padded = np.pad(x, pad_widths, mode='constant')
return padded[:, :-1]
# Handling chunked inputs. Recall that t... | python | def ShiftRight(x, **unused_kwargs):
"""Layer to shift the tensor to the right by padding on axis 1."""
if not isinstance(x, (list, tuple)): # non-chunked inputs
pad_widths = [(0, 0), (1, 0)]
padded = np.pad(x, pad_widths, mode='constant')
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22,843 | tensorflow/tensor2tensor | tensor2tensor/data_generators/algorithmic.py | reverse_generator_nlplike | def reverse_generator_nlplike(nbr_symbols,
max_length,
nbr_cases,
scale_std_dev=100,
alpha=1.5):
"""Generator for the reversing nlp-like task on sequences of symbols.
The length of the sequence i... | python | def reverse_generator_nlplike(nbr_symbols,
max_length,
nbr_cases,
scale_std_dev=100,
alpha=1.5):
"""Generator for the reversing nlp-like task on sequences of symbols.
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22,844 | tensorflow/tensor2tensor | tensor2tensor/data_generators/wikisum/parallel_launch.py | remote_run | def remote_run(cmd, instance_name, detach=False, retries=1):
"""Run command on GCS instance, optionally detached."""
if detach:
cmd = SCREEN.format(command=cmd)
args = SSH.format(instance_name=instance_name).split()
args.append(cmd)
for i in range(retries + 1):
try:
if i > 0:
tf.logging.... | python | def remote_run(cmd, instance_name, detach=False, retries=1):
"""Run command on GCS instance, optionally detached."""
if detach:
cmd = SCREEN.format(command=cmd)
args = SSH.format(instance_name=instance_name).split()
args.append(cmd)
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22,845 | tensorflow/tensor2tensor | tensor2tensor/data_generators/wikisum/parallel_launch.py | wait_for_ssh | def wait_for_ssh(ip):
"""Wait for SSH to be available at given IP address."""
for _ in range(12):
with safe_socket() as s:
try:
s.connect((ip, 22))
return True
except socket.timeout:
pass
time.sleep(10)
return False | python | def wait_for_ssh(ip):
"""Wait for SSH to be available at given IP address."""
for _ in range(12):
with safe_socket() as s:
try:
s.connect((ip, 22))
return True
except socket.timeout:
pass
time.sleep(10)
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22,846 | tensorflow/tensor2tensor | tensor2tensor/data_generators/wikisum/parallel_launch.py | launch_instance | def launch_instance(instance_name,
command,
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cpu=1,
mem=4,
code_dir=None,
setup_command=None):
"""Launch a GCE instance."""
# Create instance
ip = existing_ip or create_instance... | python | def launch_instance(instance_name,
command,
existing_ip=None,
cpu=1,
mem=4,
code_dir=None,
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"""Launch a GCE instance."""
# Create instance
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22,847 | tensorflow/tensor2tensor | tensor2tensor/models/evolved_transformer.py | _add_attend_to_encoder_cache | def _add_attend_to_encoder_cache(cache, attention_name, hparams, num_layers,
key_channels, value_channels,
vars_3d_num_heads, scope_prefix,
encoder_output):
"""Add attend-to-encoder layers to cache."""
for layer in ra... | python | def _add_attend_to_encoder_cache(cache, attention_name, hparams, num_layers,
key_channels, value_channels,
vars_3d_num_heads, scope_prefix,
encoder_output):
"""Add attend-to-encoder layers to cache."""
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22,848 | tensorflow/tensor2tensor | tensor2tensor/models/evolved_transformer.py | _init_evolved_transformer_cache | def _init_evolved_transformer_cache(cache, hparams, batch_size,
attention_init_length, encoder_output,
encoder_decoder_attention_bias,
scope_prefix):
"""Create the initial cache for Evolved Transformer fast dec... | python | def _init_evolved_transformer_cache(cache, hparams, batch_size,
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scope_prefix):
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22,849 | tensorflow/tensor2tensor | tensor2tensor/models/evolved_transformer.py | add_evolved_transformer_hparams | def add_evolved_transformer_hparams(hparams):
"""Add Evolved Transformer hparams.
Note: These are for the Adam optimizer, not the Adafactor optimizer used in
the paper.
Args:
hparams: Current hparams.
Returns:
hparams updated with Evolved Transformer values.
"""
# Evolved Transformer "layers" a... | python | def add_evolved_transformer_hparams(hparams):
"""Add Evolved Transformer hparams.
Note: These are for the Adam optimizer, not the Adafactor optimizer used in
the paper.
Args:
hparams: Current hparams.
Returns:
hparams updated with Evolved Transformer values.
"""
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22,850 | tensorflow/tensor2tensor | tensor2tensor/models/evolved_transformer.py | evolved_transformer_base_tpu | def evolved_transformer_base_tpu():
"""Base parameters for Evolved Transformer model on TPU."""
hparams = add_evolved_transformer_hparams(transformer.transformer_tpu())
hparams.learning_rate_constant = 1 / hparams.learning_rate_warmup_steps ** 0.5
hparams.learning_rate_schedule = (
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"""Base parameters for Evolved Transformer model on TPU."""
hparams = add_evolved_transformer_hparams(transformer.transformer_tpu())
hparams.learning_rate_constant = 1 / hparams.learning_rate_warmup_steps ** 0.5
hparams.learning_rate_schedule = (
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22,851 | tensorflow/tensor2tensor | tensor2tensor/models/evolved_transformer.py | evolved_transformer_big_tpu | def evolved_transformer_big_tpu():
"""Big parameters for Evolved Transformer model on TPU."""
hparams = add_evolved_transformer_hparams(transformer.transformer_big_tpu())
hparams.learning_rate_constant = 1 / hparams.learning_rate_warmup_steps ** 0.5
hparams.learning_rate_schedule = (
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"""Big parameters for Evolved Transformer model on TPU."""
hparams = add_evolved_transformer_hparams(transformer.transformer_big_tpu())
hparams.learning_rate_constant = 1 / hparams.learning_rate_warmup_steps ** 0.5
hparams.learning_rate_schedule = (
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22,852 | tensorflow/tensor2tensor | tensor2tensor/models/research/moe.py | set_default_moe_hparams | def set_default_moe_hparams(hparams):
"""Add necessary hyperparameters for mixture-of-experts."""
hparams.moe_num_experts = 16
hparams.moe_loss_coef = 1e-2
hparams.add_hparam("moe_gating", "top_2")
# Experts have fixed capacity per batch. We need some extra capacity
# in case gating is not perfectly balanc... | python | def set_default_moe_hparams(hparams):
"""Add necessary hyperparameters for mixture-of-experts."""
hparams.moe_num_experts = 16
hparams.moe_loss_coef = 1e-2
hparams.add_hparam("moe_gating", "top_2")
# Experts have fixed capacity per batch. We need some extra capacity
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22,853 | tensorflow/tensor2tensor | tensor2tensor/models/research/moe.py | _split_into_groups | def _split_into_groups(n, max_group_size, mesh_dim_size):
"""Helper function for figuring out how to split a dimensino into groups.
We have a dimension with size n and we want to split it into
two dimensions: n = num_groups * group_size
group_size should be the largest possible value meeting the constraints:
... | python | def _split_into_groups(n, max_group_size, mesh_dim_size):
"""Helper function for figuring out how to split a dimensino into groups.
We have a dimension with size n and we want to split it into
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22,854 | tensorflow/tensor2tensor | tensor2tensor/utils/registry.py | _nargs_validator | def _nargs_validator(nargs, message):
"""Makes validator for function to ensure it takes nargs args."""
if message is None:
message = "Registered function must take exactly %d arguments" % nargs
def f(key, value):
del key
spec = inspect.getfullargspec(value)
if (len(spec.args) != nargs or spec.va... | python | def _nargs_validator(nargs, message):
"""Makes validator for function to ensure it takes nargs args."""
if message is None:
message = "Registered function must take exactly %d arguments" % nargs
def f(key, value):
del key
spec = inspect.getfullargspec(value)
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22,855 | tensorflow/tensor2tensor | tensor2tensor/utils/registry.py | optimizer | def optimizer(name):
"""Get pre-registered optimizer keyed by name.
`name` should be snake case, though SGD -> sgd, RMSProp -> rms_prop and
UpperCamelCase -> snake_case conversions included for legacy support.
Args:
name: name of optimizer used in registration. This should be a snake case
identifier... | python | def optimizer(name):
"""Get pre-registered optimizer keyed by name.
`name` should be snake case, though SGD -> sgd, RMSProp -> rms_prop and
UpperCamelCase -> snake_case conversions included for legacy support.
Args:
name: name of optimizer used in registration. This should be a snake case
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22,856 | tensorflow/tensor2tensor | tensor2tensor/utils/registry.py | env_problem | def env_problem(env_problem_name, **kwargs):
"""Get and initialize the `EnvProblem` with the given name and batch size.
Args:
env_problem_name: string name of the registered env problem.
**kwargs: forwarded to env problem's initialize method.
Returns:
an initialized EnvProblem with the given batch s... | python | def env_problem(env_problem_name, **kwargs):
"""Get and initialize the `EnvProblem` with the given name and batch size.
Args:
env_problem_name: string name of the registered env problem.
**kwargs: forwarded to env problem's initialize method.
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22,857 | tensorflow/tensor2tensor | tensor2tensor/utils/registry.py | display_list_by_prefix | def display_list_by_prefix(names_list, starting_spaces=0):
"""Creates a help string for names_list grouped by prefix."""
cur_prefix, result_lines = None, []
space = " " * starting_spaces
for name in sorted(names_list):
split = name.split("_", 1)
prefix = split[0]
if cur_prefix != prefix:
resul... | python | def display_list_by_prefix(names_list, starting_spaces=0):
"""Creates a help string for names_list grouped by prefix."""
cur_prefix, result_lines = None, []
space = " " * starting_spaces
for name in sorted(names_list):
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22,858 | tensorflow/tensor2tensor | tensor2tensor/utils/registry.py | help_string | def help_string():
"""Generate help string with contents of registry."""
help_str = """
Registry contents:
------------------
Models:
%s
HParams:
%s
RangedHParams:
%s
Problems:
%s
Optimizers:
%s
Attacks:
%s
Attack HParams:
%s
Pruning HParams:
%s
Pruning Strategies:
%s
Env Problems:
%s
... | python | def help_string():
"""Generate help string with contents of registry."""
help_str = """
Registry contents:
------------------
Models:
%s
HParams:
%s
RangedHParams:
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22,859 | tensorflow/tensor2tensor | tensor2tensor/utils/registry.py | Registry.register | def register(self, key_or_value=None):
"""Decorator to register a function, or registration itself.
This is primarily intended for use as a decorator, either with or without
a key/parentheses.
```python
@my_registry.register('key1')
def value_fn(x, y, z):
pass
@my_registry.register()... | python | def register(self, key_or_value=None):
"""Decorator to register a function, or registration itself.
This is primarily intended for use as a decorator, either with or without
a key/parentheses.
```python
@my_registry.register('key1')
def value_fn(x, y, z):
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22,860 | Microsoft/LightGBM | helpers/check_dynamic_dependencies.py | check_dependicies | def check_dependicies(objdump_string):
"""Check the dynamic symbol versions.
Parameters
----------
objdump_string : string
The dynamic symbol table entries of the file (result of `objdump -T` command).
"""
GLIBC_version = re.compile(r'0{16}[ \t]+GLIBC_(\d{1,2})[.](\d{1,3})[.]?\d{,3}[ \t... | python | def check_dependicies(objdump_string):
"""Check the dynamic symbol versions.
Parameters
----------
objdump_string : string
The dynamic symbol table entries of the file (result of `objdump -T` command).
"""
GLIBC_version = re.compile(r'0{16}[ \t]+GLIBC_(\d{1,2})[.](\d{1,3})[.]?\d{,3}[ \t... | [
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22,861 | Microsoft/LightGBM | python-package/lightgbm/sklearn.py | _objective_function_wrapper | def _objective_function_wrapper(func):
"""Decorate an objective function.
Note
----
For multi-class task, the y_pred is group by class_id first, then group by row_id.
If you want to get i-th row y_pred in j-th class, the access way is y_pred[j * num_data + i]
and you should group grad and hess ... | python | def _objective_function_wrapper(func):
"""Decorate an objective function.
Note
----
For multi-class task, the y_pred is group by class_id first, then group by row_id.
If you want to get i-th row y_pred in j-th class, the access way is y_pred[j * num_data + i]
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22,862 | Microsoft/LightGBM | python-package/lightgbm/sklearn.py | _eval_function_wrapper | def _eval_function_wrapper(func):
"""Decorate an eval function.
Note
----
For multi-class task, the y_pred is group by class_id first, then group by row_id.
If you want to get i-th row y_pred in j-th class, the access way is y_pred[j * num_data + i].
Parameters
----------
func : callab... | python | def _eval_function_wrapper(func):
"""Decorate an eval function.
Note
----
For multi-class task, the y_pred is group by class_id first, then group by row_id.
If you want to get i-th row y_pred in j-th class, the access way is y_pred[j * num_data + i].
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----------
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22,863 | Microsoft/LightGBM | python-package/lightgbm/sklearn.py | LGBMModel.predict | def predict(self, X, raw_score=False, num_iteration=None,
pred_leaf=False, pred_contrib=False, **kwargs):
"""Return the predicted value for each sample.
Parameters
----------
X : array-like or sparse matrix of shape = [n_samples, n_features]
Input features ma... | python | def predict(self, X, raw_score=False, num_iteration=None,
pred_leaf=False, pred_contrib=False, **kwargs):
"""Return the predicted value for each sample.
Parameters
----------
X : array-like or sparse matrix of shape = [n_samples, n_features]
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22,864 | Microsoft/LightGBM | python-package/lightgbm/sklearn.py | LGBMClassifier.predict_proba | def predict_proba(self, X, raw_score=False, num_iteration=None,
pred_leaf=False, pred_contrib=False, **kwargs):
"""Return the predicted probability for each class for each sample.
Parameters
----------
X : array-like or sparse matrix of shape = [n_samples, n_featur... | python | def predict_proba(self, X, raw_score=False, num_iteration=None,
pred_leaf=False, pred_contrib=False, **kwargs):
"""Return the predicted probability for each class for each sample.
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----------
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22,865 | Microsoft/LightGBM | helpers/parameter_generator.py | get_parameter_infos | def get_parameter_infos(config_hpp):
"""Parse config header file.
Parameters
----------
config_hpp : string
Path to the config header file.
Returns
-------
infos : tuple
Tuple with names and content of sections.
"""
is_inparameter = False
parameter_group = None
... | python | def get_parameter_infos(config_hpp):
"""Parse config header file.
Parameters
----------
config_hpp : string
Path to the config header file.
Returns
-------
infos : tuple
Tuple with names and content of sections.
"""
is_inparameter = False
parameter_group = None
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22,866 | Microsoft/LightGBM | helpers/parameter_generator.py | get_names | def get_names(infos):
"""Get names of all parameters.
Parameters
----------
infos : list
Content of the config header file.
Returns
-------
names : list
Names of all parameters.
"""
names = []
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for y in x:
names.append(y["name"... | python | def get_names(infos):
"""Get names of all parameters.
Parameters
----------
infos : list
Content of the config header file.
Returns
-------
names : list
Names of all parameters.
"""
names = []
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22,867 | Microsoft/LightGBM | helpers/parameter_generator.py | get_alias | def get_alias(infos):
"""Get aliases of all parameters.
Parameters
----------
infos : list
Content of the config header file.
Returns
-------
pairs : list
List of tuples (param alias, param name).
"""
pairs = []
for x in infos:
for y in x:
if... | python | def get_alias(infos):
"""Get aliases of all parameters.
Parameters
----------
infos : list
Content of the config header file.
Returns
-------
pairs : list
List of tuples (param alias, param name).
"""
pairs = []
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22,868 | Microsoft/LightGBM | helpers/parameter_generator.py | set_one_var_from_string | def set_one_var_from_string(name, param_type, checks):
"""Construct code for auto config file for one param value.
Parameters
----------
name : string
Name of the parameter.
param_type : string
Type of the parameter.
checks : list
Constraints of the parameter.
Retur... | python | def set_one_var_from_string(name, param_type, checks):
"""Construct code for auto config file for one param value.
Parameters
----------
name : string
Name of the parameter.
param_type : string
Type of the parameter.
checks : list
Constraints of the parameter.
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22,869 | Microsoft/LightGBM | helpers/parameter_generator.py | gen_parameter_code | def gen_parameter_code(config_hpp, config_out_cpp):
"""Generate auto config file.
Parameters
----------
config_hpp : string
Path to the config header file.
config_out_cpp : string
Path to the auto config file.
Returns
-------
infos : tuple
Tuple with names and c... | python | def gen_parameter_code(config_hpp, config_out_cpp):
"""Generate auto config file.
Parameters
----------
config_hpp : string
Path to the config header file.
config_out_cpp : string
Path to the auto config file.
Returns
-------
infos : tuple
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22,870 | Microsoft/LightGBM | python-package/lightgbm/basic.py | _load_lib | def _load_lib():
"""Load LightGBM library."""
lib_path = find_lib_path()
if len(lib_path) == 0:
return None
lib = ctypes.cdll.LoadLibrary(lib_path[0])
lib.LGBM_GetLastError.restype = ctypes.c_char_p
return lib | python | def _load_lib():
"""Load LightGBM library."""
lib_path = find_lib_path()
if len(lib_path) == 0:
return None
lib = ctypes.cdll.LoadLibrary(lib_path[0])
lib.LGBM_GetLastError.restype = ctypes.c_char_p
return lib | [
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22,871 | Microsoft/LightGBM | python-package/lightgbm/basic.py | list_to_1d_numpy | def list_to_1d_numpy(data, dtype=np.float32, name='list'):
"""Convert data to 1-D numpy array."""
if is_numpy_1d_array(data):
if data.dtype == dtype:
return data
else:
return data.astype(dtype=dtype, copy=False)
elif is_1d_list(data):
return np.array(data, dty... | python | def list_to_1d_numpy(data, dtype=np.float32, name='list'):
"""Convert data to 1-D numpy array."""
if is_numpy_1d_array(data):
if data.dtype == dtype:
return data
else:
return data.astype(dtype=dtype, copy=False)
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22,872 | Microsoft/LightGBM | python-package/lightgbm/basic.py | cfloat32_array_to_numpy | def cfloat32_array_to_numpy(cptr, length):
"""Convert a ctypes float pointer array to a numpy array."""
if isinstance(cptr, ctypes.POINTER(ctypes.c_float)):
return np.fromiter(cptr, dtype=np.float32, count=length)
else:
raise RuntimeError('Expected float pointer') | python | def cfloat32_array_to_numpy(cptr, length):
"""Convert a ctypes float pointer array to a numpy array."""
if isinstance(cptr, ctypes.POINTER(ctypes.c_float)):
return np.fromiter(cptr, dtype=np.float32, count=length)
else:
raise RuntimeError('Expected float pointer') | [
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22,873 | Microsoft/LightGBM | python-package/lightgbm/basic.py | cfloat64_array_to_numpy | def cfloat64_array_to_numpy(cptr, length):
"""Convert a ctypes double pointer array to a numpy array."""
if isinstance(cptr, ctypes.POINTER(ctypes.c_double)):
return np.fromiter(cptr, dtype=np.float64, count=length)
else:
raise RuntimeError('Expected double pointer') | python | def cfloat64_array_to_numpy(cptr, length):
"""Convert a ctypes double pointer array to a numpy array."""
if isinstance(cptr, ctypes.POINTER(ctypes.c_double)):
return np.fromiter(cptr, dtype=np.float64, count=length)
else:
raise RuntimeError('Expected double pointer') | [
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22,874 | Microsoft/LightGBM | python-package/lightgbm/basic.py | param_dict_to_str | def param_dict_to_str(data):
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22,875 | Microsoft/LightGBM | python-package/lightgbm/basic.py | convert_from_sliced_object | def convert_from_sliced_object(data):
"""Fix the memory of multi-dimensional sliced object."""
if data.base is not None and isinstance(data, np.ndarray) and isinstance(data.base, np.ndarray):
if not data.flags.c_contiguous:
warnings.warn("Usage of np.ndarray subset (sliced data) is not recom... | python | def convert_from_sliced_object(data):
"""Fix the memory of multi-dimensional sliced object."""
if data.base is not None and isinstance(data, np.ndarray) and isinstance(data.base, np.ndarray):
if not data.flags.c_contiguous:
warnings.warn("Usage of np.ndarray subset (sliced data) is not recom... | [
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22,876 | Microsoft/LightGBM | python-package/lightgbm/basic.py | _InnerPredictor.predict | def predict(self, data, num_iteration=-1,
raw_score=False, pred_leaf=False, pred_contrib=False, data_has_header=False,
is_reshape=True):
"""Predict logic.
Parameters
----------
data : string, numpy array, pandas DataFrame, H2O DataTable's Frame or scipy.s... | python | def predict(self, data, num_iteration=-1,
raw_score=False, pred_leaf=False, pred_contrib=False, data_has_header=False,
is_reshape=True):
"""Predict logic.
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22,877 | Microsoft/LightGBM | python-package/lightgbm/basic.py | _InnerPredictor.__get_num_preds | def __get_num_preds(self, num_iteration, nrow, predict_type):
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raise LightGBMError('LightGBM cannot perform prediction for data'
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raise LightGBMError('LightGBM cannot perform prediction for data'
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22,878 | Microsoft/LightGBM | python-package/lightgbm/basic.py | _InnerPredictor.__pred_for_np2d | def __pred_for_np2d(self, mat, num_iteration, predict_type):
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if len(mat.shape) != 2:
raise ValueError('Input numpy.ndarray or list must be 2 dimensional')
def inner_predict(mat, num_iteration, predict_type, preds=None):
if mat.dtype ... | python | def __pred_for_np2d(self, mat, num_iteration, predict_type):
"""Predict for a 2-D numpy matrix."""
if len(mat.shape) != 2:
raise ValueError('Input numpy.ndarray or list must be 2 dimensional')
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22,879 | Microsoft/LightGBM | python-package/lightgbm/basic.py | _InnerPredictor.__pred_for_csr | def __pred_for_csr(self, csr, num_iteration, predict_type):
"""Predict for a CSR data."""
def inner_predict(csr, num_iteration, predict_type, preds=None):
nrow = len(csr.indptr) - 1
n_preds = self.__get_num_preds(num_iteration, nrow, predict_type)
if preds is None:
... | python | def __pred_for_csr(self, csr, num_iteration, predict_type):
"""Predict for a CSR data."""
def inner_predict(csr, num_iteration, predict_type, preds=None):
nrow = len(csr.indptr) - 1
n_preds = self.__get_num_preds(num_iteration, nrow, predict_type)
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22,880 | Microsoft/LightGBM | python-package/lightgbm/basic.py | _InnerPredictor.__pred_for_csc | def __pred_for_csc(self, csc, num_iteration, predict_type):
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22,881 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.__init_from_list_np2d | def __init_from_list_np2d(self, mats, params_str, ref_dataset):
"""Initialize data from a list of 2-D numpy matrices."""
ncol = mats[0].shape[1]
nrow = np.zeros((len(mats),), np.int32)
if mats[0].dtype == np.float64:
ptr_data = (ctypes.POINTER(ctypes.c_double) * len(mats))()
... | python | def __init_from_list_np2d(self, mats, params_str, ref_dataset):
"""Initialize data from a list of 2-D numpy matrices."""
ncol = mats[0].shape[1]
nrow = np.zeros((len(mats),), np.int32)
if mats[0].dtype == np.float64:
ptr_data = (ctypes.POINTER(ctypes.c_double) * len(mats))()
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22,882 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.construct | def construct(self):
"""Lazy init.
Returns
-------
self : Dataset
Constructed Dataset object.
"""
if self.handle is None:
if self.reference is not None:
if self.used_indices is None:
# create valid
... | python | def construct(self):
"""Lazy init.
Returns
-------
self : Dataset
Constructed Dataset object.
"""
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if self.reference is not None:
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22,883 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.create_valid | def create_valid(self, data, label=None, weight=None, group=None,
init_score=None, silent=False, params=None):
"""Create validation data align with current Dataset.
Parameters
----------
data : string, numpy array, pandas DataFrame, H2O DataTable's Frame, scipy.spar... | python | def create_valid(self, data, label=None, weight=None, group=None,
init_score=None, silent=False, params=None):
"""Create validation data align with current Dataset.
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----------
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22,884 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.subset | def subset(self, used_indices, params=None):
"""Get subset of current Dataset.
Parameters
----------
used_indices : list of int
Indices used to create the subset.
params : dict or None, optional (default=None)
These parameters will be passed to Dataset co... | python | def subset(self, used_indices, params=None):
"""Get subset of current Dataset.
Parameters
----------
used_indices : list of int
Indices used to create the subset.
params : dict or None, optional (default=None)
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22,885 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.save_binary | def save_binary(self, filename):
"""Save Dataset to a binary file.
Parameters
----------
filename : string
Name of the output file.
Returns
-------
self : Dataset
Returns self.
"""
_safe_call(_LIB.LGBM_DatasetSaveBinary(
... | python | def save_binary(self, filename):
"""Save Dataset to a binary file.
Parameters
----------
filename : string
Name of the output file.
Returns
-------
self : Dataset
Returns self.
"""
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22,886 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.set_field | def set_field(self, field_name, data):
"""Set property into the Dataset.
Parameters
----------
field_name : string
The field name of the information.
data : list, numpy 1-D array, pandas Series or None
The array of data to be set.
Returns
... | python | def set_field(self, field_name, data):
"""Set property into the Dataset.
Parameters
----------
field_name : string
The field name of the information.
data : list, numpy 1-D array, pandas Series or None
The array of data to be set.
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22,887 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.get_field | def get_field(self, field_name):
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Parameters
----------
field_name : string
The field name of the information.
Returns
-------
info : numpy array
A numpy array with information from the Dataset.
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Parameters
----------
field_name : string
The field name of the information.
Returns
-------
info : numpy array
A numpy array with information from the Dataset. | [
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22,888 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.set_categorical_feature | def set_categorical_feature(self, categorical_feature):
"""Set categorical features.
Parameters
----------
categorical_feature : list of int or strings
Names or indices of categorical features.
Returns
-------
self : Dataset
Dataset with ... | python | def set_categorical_feature(self, categorical_feature):
"""Set categorical features.
Parameters
----------
categorical_feature : list of int or strings
Names or indices of categorical features.
Returns
-------
self : Dataset
Dataset with ... | [
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22,889 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset._set_predictor | def _set_predictor(self, predictor):
"""Set predictor for continued training.
It is not recommended for user to call this function.
Please use init_model argument in engine.train() or engine.cv() instead.
"""
if predictor is self._predictor:
return self
if se... | python | def _set_predictor(self, predictor):
"""Set predictor for continued training.
It is not recommended for user to call this function.
Please use init_model argument in engine.train() or engine.cv() instead.
"""
if predictor is self._predictor:
return self
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22,890 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.set_reference | def set_reference(self, reference):
"""Set reference Dataset.
Parameters
----------
reference : Dataset
Reference that is used as a template to construct the current Dataset.
Returns
-------
self : Dataset
Dataset with set reference.
... | python | def set_reference(self, reference):
"""Set reference Dataset.
Parameters
----------
reference : Dataset
Reference that is used as a template to construct the current Dataset.
Returns
-------
self : Dataset
Dataset with set reference.
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22,891 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.set_feature_name | def set_feature_name(self, feature_name):
"""Set feature name.
Parameters
----------
feature_name : list of strings
Feature names.
Returns
-------
self : Dataset
Dataset with set feature name.
"""
if feature_name != 'auto'... | python | def set_feature_name(self, feature_name):
"""Set feature name.
Parameters
----------
feature_name : list of strings
Feature names.
Returns
-------
self : Dataset
Dataset with set feature name.
"""
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22,892 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.set_label | def set_label(self, label):
"""Set label of Dataset.
Parameters
----------
label : list, numpy 1-D array, pandas Series / one-column DataFrame or None
The label information to be set into Dataset.
Returns
-------
self : Dataset
Dataset wi... | python | def set_label(self, label):
"""Set label of Dataset.
Parameters
----------
label : list, numpy 1-D array, pandas Series / one-column DataFrame or None
The label information to be set into Dataset.
Returns
-------
self : Dataset
Dataset wi... | [
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22,893 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.set_weight | def set_weight(self, weight):
"""Set weight of each instance.
Parameters
----------
weight : list, numpy 1-D array, pandas Series or None
Weight to be set for each data point.
Returns
-------
self : Dataset
Dataset with set weight.
... | python | def set_weight(self, weight):
"""Set weight of each instance.
Parameters
----------
weight : list, numpy 1-D array, pandas Series or None
Weight to be set for each data point.
Returns
-------
self : Dataset
Dataset with set weight.
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22,894 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.set_init_score | def set_init_score(self, init_score):
"""Set init score of Booster to start from.
Parameters
----------
init_score : list, numpy 1-D array, pandas Series or None
Init score for Booster.
Returns
-------
self : Dataset
Dataset with set init... | python | def set_init_score(self, init_score):
"""Set init score of Booster to start from.
Parameters
----------
init_score : list, numpy 1-D array, pandas Series or None
Init score for Booster.
Returns
-------
self : Dataset
Dataset with set init... | [
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Init score for Booster.
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22,895 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.get_label | def get_label(self):
"""Get the label of the Dataset.
Returns
-------
label : numpy array or None
The label information from the Dataset.
"""
if self.label is None:
self.label = self.get_field('label')
return self.label | python | def get_label(self):
"""Get the label of the Dataset.
Returns
-------
label : numpy array or None
The label information from the Dataset.
"""
if self.label is None:
self.label = self.get_field('label')
return self.label | [
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22,896 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.get_weight | def get_weight(self):
"""Get the weight of the Dataset.
Returns
-------
weight : numpy array or None
Weight for each data point from the Dataset.
"""
if self.weight is None:
self.weight = self.get_field('weight')
return self.weight | python | def get_weight(self):
"""Get the weight of the Dataset.
Returns
-------
weight : numpy array or None
Weight for each data point from the Dataset.
"""
if self.weight is None:
self.weight = self.get_field('weight')
return self.weight | [
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Weight for each data point from the Dataset. | [
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22,897 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.get_feature_penalty | def get_feature_penalty(self):
"""Get the feature penalty of the Dataset.
Returns
-------
feature_penalty : numpy array or None
Feature penalty for each feature in the Dataset.
"""
if self.feature_penalty is None:
self.feature_penalty = self.get_f... | python | def get_feature_penalty(self):
"""Get the feature penalty of the Dataset.
Returns
-------
feature_penalty : numpy array or None
Feature penalty for each feature in the Dataset.
"""
if self.feature_penalty is None:
self.feature_penalty = self.get_f... | [
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22,898 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.get_monotone_constraints | def get_monotone_constraints(self):
"""Get the monotone constraints of the Dataset.
Returns
-------
monotone_constraints : numpy array or None
Monotone constraints: -1, 0 or 1, for each feature in the Dataset.
"""
if self.monotone_constraints is None:
... | python | def get_monotone_constraints(self):
"""Get the monotone constraints of the Dataset.
Returns
-------
monotone_constraints : numpy array or None
Monotone constraints: -1, 0 or 1, for each feature in the Dataset.
"""
if self.monotone_constraints is None:
... | [
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22,899 | Microsoft/LightGBM | python-package/lightgbm/basic.py | Dataset.get_init_score | def get_init_score(self):
"""Get the initial score of the Dataset.
Returns
-------
init_score : numpy array or None
Init score of Booster.
"""
if self.init_score is None:
self.init_score = self.get_field('init_score')
return self.init_scor... | python | def get_init_score(self):
"""Get the initial score of the Dataset.
Returns
-------
init_score : numpy array or None
Init score of Booster.
"""
if self.init_score is None:
self.init_score = self.get_field('init_score')
return self.init_scor... | [
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