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23,800 | apache/incubator-mxnet | example/image-classification/train_mnist.py | get_mnist_iter | def get_mnist_iter(args, kv):
"""
create data iterator with NDArrayIter
"""
(train_lbl, train_img) = read_data(
'train-labels-idx1-ubyte.gz', 'train-images-idx3-ubyte.gz')
(val_lbl, val_img) = read_data(
't10k-labels-idx1-ubyte.gz', 't10k-images-idx3-ubyte.gz')
train = mx... | python | def get_mnist_iter(args, kv):
"""
create data iterator with NDArrayIter
"""
(train_lbl, train_img) = read_data(
'train-labels-idx1-ubyte.gz', 'train-images-idx3-ubyte.gz')
(val_lbl, val_img) = read_data(
't10k-labels-idx1-ubyte.gz', 't10k-images-idx3-ubyte.gz')
train = mx... | [
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23,801 | apache/incubator-mxnet | example/fcn-xs/image_segmentaion.py | main | def main():
"""Module main execution"""
# Initialization variables - update to change your model and execution context
model_prefix = "FCN8s_VGG16"
epoch = 19
# By default, MXNet will run on the CPU. Change to ctx = mx.gpu() to run on GPU.
ctx = mx.cpu()
fcnxs, fcnxs_args, fcnxs_auxs = mx.... | python | def main():
"""Module main execution"""
# Initialization variables - update to change your model and execution context
model_prefix = "FCN8s_VGG16"
epoch = 19
# By default, MXNet will run on the CPU. Change to ctx = mx.gpu() to run on GPU.
ctx = mx.cpu()
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23,802 | apache/incubator-mxnet | example/ssd/dataset/concat_db.py | ConcatDB._check_classes | def _check_classes(self):
"""
check input imdbs, make sure they have same classes
"""
try:
self.classes = self.imdbs[0].classes
self.num_classes = len(self.classes)
except AttributeError:
# fine, if no classes is provided
pass
... | python | def _check_classes(self):
"""
check input imdbs, make sure they have same classes
"""
try:
self.classes = self.imdbs[0].classes
self.num_classes = len(self.classes)
except AttributeError:
# fine, if no classes is provided
pass
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23,803 | apache/incubator-mxnet | example/ssd/dataset/concat_db.py | ConcatDB._load_image_set_index | def _load_image_set_index(self, shuffle):
"""
get total number of images, init indices
Parameters
----------
shuffle : bool
whether to shuffle the initial indices
"""
self.num_images = 0
for db in self.imdbs:
self.num_images += db.... | python | def _load_image_set_index(self, shuffle):
"""
get total number of images, init indices
Parameters
----------
shuffle : bool
whether to shuffle the initial indices
"""
self.num_images = 0
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23,804 | apache/incubator-mxnet | example/ssd/dataset/concat_db.py | ConcatDB._locate_index | def _locate_index(self, index):
"""
given index, find out sub-db and sub-index
Parameters
----------
index : int
index of a specific image
Returns
----------
a tuple (sub-db, sub-index)
"""
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"""
given index, find out sub-db and sub-index
Parameters
----------
index : int
index of a specific image
Returns
----------
a tuple (sub-db, sub-index)
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23,805 | apache/incubator-mxnet | python/mxnet/callback.py | module_checkpoint | def module_checkpoint(mod, prefix, period=1, save_optimizer_states=False):
"""Callback to checkpoint Module to prefix every epoch.
Parameters
----------
mod : subclass of BaseModule
The module to checkpoint.
prefix : str
The file prefix for this checkpoint.
period : int
... | python | def module_checkpoint(mod, prefix, period=1, save_optimizer_states=False):
"""Callback to checkpoint Module to prefix every epoch.
Parameters
----------
mod : subclass of BaseModule
The module to checkpoint.
prefix : str
The file prefix for this checkpoint.
period : int
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23,806 | apache/incubator-mxnet | python/mxnet/callback.py | log_train_metric | def log_train_metric(period, auto_reset=False):
"""Callback to log the training evaluation result every period.
Parameters
----------
period : int
The number of batch to log the training evaluation metric.
auto_reset : bool
Reset the metric after each log.
Returns
-------
... | python | def log_train_metric(period, auto_reset=False):
"""Callback to log the training evaluation result every period.
Parameters
----------
period : int
The number of batch to log the training evaluation metric.
auto_reset : bool
Reset the metric after each log.
Returns
-------
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23,807 | apache/incubator-mxnet | python/mxnet/monitor.py | Monitor.install | def install(self, exe):
"""install callback to executor.
Supports installing to multiple exes.
Parameters
----------
exe : mx.executor.Executor
The Executor (returned by symbol.bind) to install to.
"""
exe.set_monitor_callback(self.stat_helper, self.m... | python | def install(self, exe):
"""install callback to executor.
Supports installing to multiple exes.
Parameters
----------
exe : mx.executor.Executor
The Executor (returned by symbol.bind) to install to.
"""
exe.set_monitor_callback(self.stat_helper, self.m... | [
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23,808 | apache/incubator-mxnet | python/mxnet/monitor.py | Monitor.tic | def tic(self):
"""Start collecting stats for current batch.
Call before calling forward."""
if self.step % self.interval == 0:
for exe in self.exes:
for array in exe.arg_arrays:
array.wait_to_read()
for array in exe.aux_arrays:
... | python | def tic(self):
"""Start collecting stats for current batch.
Call before calling forward."""
if self.step % self.interval == 0:
for exe in self.exes:
for array in exe.arg_arrays:
array.wait_to_read()
for array in exe.aux_arrays:
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23,809 | apache/incubator-mxnet | python/mxnet/monitor.py | Monitor.toc | def toc(self):
"""End collecting for current batch and return results.
Call after computation of current batch.
Returns
-------
res : list of """
if not self.activated:
return []
for exe in self.exes:
for array in exe.arg_arrays:
... | python | def toc(self):
"""End collecting for current batch and return results.
Call after computation of current batch.
Returns
-------
res : list of """
if not self.activated:
return []
for exe in self.exes:
for array in exe.arg_arrays:
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23,810 | apache/incubator-mxnet | python/mxnet/monitor.py | Monitor.toc_print | def toc_print(self):
"""End collecting and print results."""
res = self.toc()
for n, k, v in res:
logging.info('Batch: {:7d} {:30s} {:s}'.format(n, k, v)) | python | def toc_print(self):
"""End collecting and print results."""
res = self.toc()
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23,811 | apache/incubator-mxnet | example/rnn/old/bucket_io.py | BucketSentenceIter.make_data_iter_plan | def make_data_iter_plan(self):
"make a random data iteration plan"
# truncate each bucket into multiple of batch-size
bucket_n_batches = []
for i in range(len(self.data)):
bucket_n_batches.append(np.floor((self.data[i]) / self.batch_size))
self.data[i] = self.data... | python | def make_data_iter_plan(self):
"make a random data iteration plan"
# truncate each bucket into multiple of batch-size
bucket_n_batches = []
for i in range(len(self.data)):
bucket_n_batches.append(np.floor((self.data[i]) / self.batch_size))
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23,812 | apache/incubator-mxnet | amalgamation/amalgamation.py | expand | def expand(x, pending, stage):
"""
Expand the pending files in the current stage.
Parameters
----------
x: str
The file to expand.
pending : str
The list of pending files to expand.
stage: str
The current stage for file expansion, used for matching the prefix of f... | python | def expand(x, pending, stage):
"""
Expand the pending files in the current stage.
Parameters
----------
x: str
The file to expand.
pending : str
The list of pending files to expand.
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23,813 | apache/incubator-mxnet | example/gluon/data.py | get_imagenet_iterator | def get_imagenet_iterator(root, batch_size, num_workers, data_shape=224, dtype='float32'):
"""Dataset loader with preprocessing."""
train_dir = os.path.join(root, 'train')
train_transform, val_transform = get_imagenet_transforms(data_shape, dtype)
logging.info("Loading image folder %s, this may take a b... | python | def get_imagenet_iterator(root, batch_size, num_workers, data_shape=224, dtype='float32'):
"""Dataset loader with preprocessing."""
train_dir = os.path.join(root, 'train')
train_transform, val_transform = get_imagenet_transforms(data_shape, dtype)
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23,814 | apache/incubator-mxnet | python/mxnet/contrib/text/embedding.py | _TokenEmbedding._load_embedding | def _load_embedding(self, pretrained_file_path, elem_delim, init_unknown_vec, encoding='utf8'):
"""Load embedding vectors from the pre-trained token embedding file.
For every unknown token, if its representation `self.unknown_token` is encountered in the
pre-trained token embedding file, index... | python | def _load_embedding(self, pretrained_file_path, elem_delim, init_unknown_vec, encoding='utf8'):
"""Load embedding vectors from the pre-trained token embedding file.
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23,815 | apache/incubator-mxnet | python/mxnet/contrib/text/embedding.py | _TokenEmbedding._set_idx_to_vec_by_embeddings | def _set_idx_to_vec_by_embeddings(self, token_embeddings, vocab_len, vocab_idx_to_token):
"""Sets the mapping between token indices and token embedding vectors.
Parameters
----------
token_embeddings : instance or list `mxnet.contrib.text.embedding._TokenEmbedding`
One or m... | python | def _set_idx_to_vec_by_embeddings(self, token_embeddings, vocab_len, vocab_idx_to_token):
"""Sets the mapping between token indices and token embedding vectors.
Parameters
----------
token_embeddings : instance or list `mxnet.contrib.text.embedding._TokenEmbedding`
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23,816 | apache/incubator-mxnet | python/mxnet/contrib/text/embedding.py | _TokenEmbedding.get_vecs_by_tokens | def get_vecs_by_tokens(self, tokens, lower_case_backup=False):
"""Look up embedding vectors of tokens.
Parameters
----------
tokens : str or list of strs
A token or a list of tokens.
lower_case_backup : bool, default False
If False, each token in the ori... | python | def get_vecs_by_tokens(self, tokens, lower_case_backup=False):
"""Look up embedding vectors of tokens.
Parameters
----------
tokens : str or list of strs
A token or a list of tokens.
lower_case_backup : bool, default False
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23,817 | apache/incubator-mxnet | python/mxnet/contrib/text/embedding.py | _TokenEmbedding.update_token_vectors | def update_token_vectors(self, tokens, new_vectors):
"""Updates embedding vectors for tokens.
Parameters
----------
tokens : str or a list of strs
A token or a list of tokens whose embedding vector are to be updated.
new_vectors : mxnet.ndarray.NDArray
A... | python | def update_token_vectors(self, tokens, new_vectors):
"""Updates embedding vectors for tokens.
Parameters
----------
tokens : str or a list of strs
A token or a list of tokens whose embedding vector are to be updated.
new_vectors : mxnet.ndarray.NDArray
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23,818 | apache/incubator-mxnet | python/mxnet/contrib/text/embedding.py | _TokenEmbedding._check_pretrained_file_names | def _check_pretrained_file_names(cls, pretrained_file_name):
"""Checks if a pre-trained token embedding file name is valid.
Parameters
----------
pretrained_file_name : str
The pre-trained token embedding file.
"""
embedding_name = cls.__name__.lower()
... | python | def _check_pretrained_file_names(cls, pretrained_file_name):
"""Checks if a pre-trained token embedding file name is valid.
Parameters
----------
pretrained_file_name : str
The pre-trained token embedding file.
"""
embedding_name = cls.__name__.lower()
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23,819 | apache/incubator-mxnet | example/bayesian-methods/algos.py | step_HMC | def step_HMC(exe, exe_params, exe_grads, label_key, noise_precision, prior_precision, L=10, eps=1E-6):
"""Generate the implementation of step HMC"""
init_params = {k: v.copyto(v.context) for k, v in exe_params.items()}
end_params = {k: v.copyto(v.context) for k, v in exe_params.items()}
init_momentums =... | python | def step_HMC(exe, exe_params, exe_grads, label_key, noise_precision, prior_precision, L=10, eps=1E-6):
"""Generate the implementation of step HMC"""
init_params = {k: v.copyto(v.context) for k, v in exe_params.items()}
end_params = {k: v.copyto(v.context) for k, v in exe_params.items()}
init_momentums =... | [
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23,820 | apache/incubator-mxnet | example/bayesian-methods/algos.py | HMC | def HMC(sym, data_inputs, X, Y, X_test, Y_test, sample_num,
initializer=None, noise_precision=1 / 9.0, prior_precision=0.1,
learning_rate=1E-6, L=10, dev=mx.gpu()):
"""Generate the implementation of HMC"""
label_key = list(set(data_inputs.keys()) - set(['data']))[0]
exe, exe_params, exe_grad... | python | def HMC(sym, data_inputs, X, Y, X_test, Y_test, sample_num,
initializer=None, noise_precision=1 / 9.0, prior_precision=0.1,
learning_rate=1E-6, L=10, dev=mx.gpu()):
"""Generate the implementation of HMC"""
label_key = list(set(data_inputs.keys()) - set(['data']))[0]
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23,821 | apache/incubator-mxnet | example/bayesian-methods/algos.py | SGD | def SGD(sym, data_inputs, X, Y, X_test, Y_test, total_iter_num,
lr=None,
lr_scheduler=None, prior_precision=1,
out_grad_f=None,
initializer=None,
minibatch_size=100, dev=mx.gpu()):
"""Generate the implementation of SGD"""
if out_grad_f is None:
label_key = list(se... | python | def SGD(sym, data_inputs, X, Y, X_test, Y_test, total_iter_num,
lr=None,
lr_scheduler=None, prior_precision=1,
out_grad_f=None,
initializer=None,
minibatch_size=100, dev=mx.gpu()):
"""Generate the implementation of SGD"""
if out_grad_f is None:
label_key = list(se... | [
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23,822 | apache/incubator-mxnet | example/bayesian-methods/algos.py | SGLD | def SGLD(sym, X, Y, X_test, Y_test, total_iter_num,
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lr_scheduler=None, prior_precision=1,
out_grad_f=None,
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dev=mx.gp... | python | def SGLD(sym, X, Y, X_test, Y_test, total_iter_num,
data_inputs=None,
learning_rate=None,
lr_scheduler=None, prior_precision=1,
out_grad_f=None,
initializer=None,
minibatch_size=100, thin_interval=100, burn_in_iter_num=1000, task='classification',
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23,823 | apache/incubator-mxnet | ci/build.py | get_platforms | def get_platforms(path: str = get_dockerfiles_path()) -> List[str]:
"""Get a list of architectures given our dockerfiles"""
dockerfiles = glob.glob(os.path.join(path, "Dockerfile.*"))
dockerfiles = list(filter(lambda x: x[-1] != '~', dockerfiles))
files = list(map(lambda x: re.sub(r"Dockerfile.(.*)", r"... | python | def get_platforms(path: str = get_dockerfiles_path()) -> List[str]:
"""Get a list of architectures given our dockerfiles"""
dockerfiles = glob.glob(os.path.join(path, "Dockerfile.*"))
dockerfiles = list(filter(lambda x: x[-1] != '~', dockerfiles))
files = list(map(lambda x: re.sub(r"Dockerfile.(.*)", r"... | [
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23,824 | apache/incubator-mxnet | ci/build.py | load_docker_cache | def load_docker_cache(tag, docker_registry) -> None:
"""Imports tagged container from the given docker registry"""
if docker_registry:
# noinspection PyBroadException
try:
import docker_cache
logging.info('Docker cache download is enabled from registry %s', docker_registr... | python | def load_docker_cache(tag, docker_registry) -> None:
"""Imports tagged container from the given docker registry"""
if docker_registry:
# noinspection PyBroadException
try:
import docker_cache
logging.info('Docker cache download is enabled from registry %s', docker_registr... | [
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23,825 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | _load_data | def _load_data(batch, targets, major_axis):
"""Load data into sliced arrays."""
if isinstance(batch, list):
new_batch = []
for i in range(len(targets)):
new_batch.append([b.data[i] for b in batch])
new_targets = [[dst for _, dst in d_target] for d_target in targets]
_... | python | def _load_data(batch, targets, major_axis):
"""Load data into sliced arrays."""
if isinstance(batch, list):
new_batch = []
for i in range(len(targets)):
new_batch.append([b.data[i] for b in batch])
new_targets = [[dst for _, dst in d_target] for d_target in targets]
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23,826 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | _merge_multi_context | def _merge_multi_context(outputs, major_axis):
"""Merge outputs that lives on multiple context into one, so that they look
like living on one context.
"""
rets = []
for tensors, axis in zip(outputs, major_axis):
if axis >= 0:
# pylint: disable=no-member,protected-access
... | python | def _merge_multi_context(outputs, major_axis):
"""Merge outputs that lives on multiple context into one, so that they look
like living on one context.
"""
rets = []
for tensors, axis in zip(outputs, major_axis):
if axis >= 0:
# pylint: disable=no-member,protected-access
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23,827 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | _prepare_group2ctxs | def _prepare_group2ctxs(group2ctxs, ctx_len):
"""Prepare the group2contexts, will duplicate the context
if some ctx_group map to only one context.
"""
if group2ctxs is None:
return [None] * ctx_len
elif isinstance(group2ctxs, list):
assert(len(group2ctxs) == ctx_len), "length of grou... | python | def _prepare_group2ctxs(group2ctxs, ctx_len):
"""Prepare the group2contexts, will duplicate the context
if some ctx_group map to only one context.
"""
if group2ctxs is None:
return [None] * ctx_len
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23,828 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.decide_slices | def decide_slices(self, data_shapes):
"""Decide the slices for each context according to the workload.
Parameters
----------
data_shapes : list
list of (name, shape) specifying the shapes for the input data or label.
"""
assert len(data_shapes) > 0
ma... | python | def decide_slices(self, data_shapes):
"""Decide the slices for each context according to the workload.
Parameters
----------
data_shapes : list
list of (name, shape) specifying the shapes for the input data or label.
"""
assert len(data_shapes) > 0
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23,829 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup._collect_arrays | def _collect_arrays(self):
"""Collect internal arrays from executors."""
# convenient data structures
self.data_arrays = [[(self.slices[i], e.arg_dict[name]) for i, e in enumerate(self.execs)]
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"""Collect internal arrays from executors."""
# convenient data structures
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23,830 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.bind_exec | def bind_exec(self, data_shapes, label_shapes, shared_group=None, reshape=False):
"""Bind executors on their respective devices.
Parameters
----------
data_shapes : list
label_shapes : list
shared_group : DataParallelExecutorGroup
reshape : bool
"""
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"""Bind executors on their respective devices.
Parameters
----------
data_shapes : list
label_shapes : list
shared_group : DataParallelExecutorGroup
reshape : bool
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23,831 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.reshape | def reshape(self, data_shapes, label_shapes):
"""Reshape executors.
Parameters
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data_shapes : list
label_shapes : list
"""
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"""Reshape executors.
Parameters
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data_shapes : list
label_shapes : list
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23,832 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.set_params | def set_params(self, arg_params, aux_params, allow_extra=False):
"""Assign, i.e. copy parameters to all the executors.
Parameters
----------
arg_params : dict
A dictionary of name to `NDArray` parameter mapping.
aux_params : dict
A dictionary of name to `... | python | def set_params(self, arg_params, aux_params, allow_extra=False):
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A dictionary of name to `NDArray` parameter mapping.
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23,833 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.get_params | def get_params(self, arg_params, aux_params):
""" Copy data from each executor to `arg_params` and `aux_params`.
Parameters
----------
arg_params : list of NDArray
Target parameter arrays.
aux_params : list of NDArray
Target aux arrays.
Notes
... | python | def get_params(self, arg_params, aux_params):
""" Copy data from each executor to `arg_params` and `aux_params`.
Parameters
----------
arg_params : list of NDArray
Target parameter arrays.
aux_params : list of NDArray
Target aux arrays.
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23,834 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.forward | def forward(self, data_batch, is_train=None):
"""Split `data_batch` according to workload and run forward on each devices.
Parameters
----------
data_batch : DataBatch
Or could be any object implementing similar interface.
is_train : bool
The hint for the... | python | def forward(self, data_batch, is_train=None):
"""Split `data_batch` according to workload and run forward on each devices.
Parameters
----------
data_batch : DataBatch
Or could be any object implementing similar interface.
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23,835 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.get_output_shapes | def get_output_shapes(self):
"""Get the shapes of the outputs."""
outputs = self.execs[0].outputs
shapes = [out.shape for out in outputs]
concat_shapes = []
for key, the_shape, axis in zip(self.symbol.list_outputs(), shapes, self.output_layouts):
the_shape = list(the... | python | def get_output_shapes(self):
"""Get the shapes of the outputs."""
outputs = self.execs[0].outputs
shapes = [out.shape for out in outputs]
concat_shapes = []
for key, the_shape, axis in zip(self.symbol.list_outputs(), shapes, self.output_layouts):
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23,836 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.get_outputs | def get_outputs(self, merge_multi_context=True, begin=0, end=None):
"""Get outputs of the previous forward computation.
If begin or end is specified, return [begin, end)-th outputs,
otherwise return all outputs.
Parameters
----------
merge_multi_context : bool
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"""Get outputs of the previous forward computation.
If begin or end is specified, return [begin, end)-th outputs,
otherwise return all outputs.
Parameters
----------
merge_multi_context : bool
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23,837 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.set_states | def set_states(self, states=None, value=None):
"""Set value for states. Only one of states & value can be specified.
Parameters
----------
states : list of list of NDArrays
source states arrays formatted like [[state1_dev1, state1_dev2],
[state2_dev1, state2_dev2... | python | def set_states(self, states=None, value=None):
"""Set value for states. Only one of states & value can be specified.
Parameters
----------
states : list of list of NDArrays
source states arrays formatted like [[state1_dev1, state1_dev2],
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23,838 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.get_input_grads | def get_input_grads(self, merge_multi_context=True):
"""Get the gradients with respect to the inputs of the module.
Parameters
----------
merge_multi_context : bool
Defaults to ``True``. In the case when data-parallelism is used, the outputs
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23,839 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.backward | def backward(self, out_grads=None):
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Parameters
----------
out_grads : NDArray or list of NDArray, optiona... | python | def backward(self, out_grads=None):
"""Run backward on all devices. A backward should be called after
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23,840 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup.update_metric | def update_metric(self, eval_metric, labels, pre_sliced):
"""Accumulate the performance according to `eval_metric` on all devices
by comparing outputs from [begin, end) to labels. By default use all
outputs.
Parameters
----------
eval_metric : EvalMetric
The ... | python | def update_metric(self, eval_metric, labels, pre_sliced):
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23,841 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup._bind_ith_exec | def _bind_ith_exec(self, i, data_shapes, label_shapes, shared_group):
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23,842 | apache/incubator-mxnet | python/mxnet/module/executor_group.py | DataParallelExecutorGroup._sliced_shape | def _sliced_shape(self, shapes, i, major_axis):
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23,843 | apache/incubator-mxnet | python/mxnet/name.py | NameManager.get | def get(self, name, hint):
"""Get the canonical name for a symbol.
This is the default implementation.
If the user specifies a name,
the user-specified name will be used.
When user does not specify a name, we automatically generate a
name based on the hint string.
... | python | def get(self, name, hint):
"""Get the canonical name for a symbol.
This is the default implementation.
If the user specifies a name,
the user-specified name will be used.
When user does not specify a name, we automatically generate a
name based on the hint string.
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23,844 | apache/incubator-mxnet | example/rcnn/symnet/model.py | load_param | def load_param(params, ctx=None):
"""same as mx.model.load_checkpoint, but do not load symnet and will convert context"""
if ctx is None:
ctx = mx.cpu()
save_dict = mx.nd.load(params)
arg_params = {}
aux_params = {}
for k, v in save_dict.items():
tp, name = k.split(':', 1)
... | python | def load_param(params, ctx=None):
"""same as mx.model.load_checkpoint, but do not load symnet and will convert context"""
if ctx is None:
ctx = mx.cpu()
save_dict = mx.nd.load(params)
arg_params = {}
aux_params = {}
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tp, name = k.split(':', 1)
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23,845 | apache/incubator-mxnet | python/mxnet/rnn/rnn.py | rnn_unroll | def rnn_unroll(cell, length, inputs=None, begin_state=None, input_prefix='', layout='NTC'):
"""Deprecated. Please use cell.unroll instead"""
warnings.warn('rnn_unroll is deprecated. Please call cell.unroll directly.')
return cell.unroll(length=length, inputs=inputs, begin_state=begin_state,
... | python | def rnn_unroll(cell, length, inputs=None, begin_state=None, input_prefix='', layout='NTC'):
"""Deprecated. Please use cell.unroll instead"""
warnings.warn('rnn_unroll is deprecated. Please call cell.unroll directly.')
return cell.unroll(length=length, inputs=inputs, begin_state=begin_state,
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23,846 | apache/incubator-mxnet | python/mxnet/rnn/rnn.py | save_rnn_checkpoint | def save_rnn_checkpoint(cells, prefix, epoch, symbol, arg_params, aux_params):
"""Save checkpoint for model using RNN cells.
Unpacks weight before saving.
Parameters
----------
cells : mxnet.rnn.RNNCell or list of RNNCells
The RNN cells used by this symbol.
prefix : str
Prefix o... | python | def save_rnn_checkpoint(cells, prefix, epoch, symbol, arg_params, aux_params):
"""Save checkpoint for model using RNN cells.
Unpacks weight before saving.
Parameters
----------
cells : mxnet.rnn.RNNCell or list of RNNCells
The RNN cells used by this symbol.
prefix : str
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23,847 | apache/incubator-mxnet | python/mxnet/rnn/rnn.py | load_rnn_checkpoint | def load_rnn_checkpoint(cells, prefix, epoch):
"""Load model checkpoint from file.
Pack weights after loading.
Parameters
----------
cells : mxnet.rnn.RNNCell or list of RNNCells
The RNN cells used by this symbol.
prefix : str
Prefix of model name.
epoch : int
Epoch ... | python | def load_rnn_checkpoint(cells, prefix, epoch):
"""Load model checkpoint from file.
Pack weights after loading.
Parameters
----------
cells : mxnet.rnn.RNNCell or list of RNNCells
The RNN cells used by this symbol.
prefix : str
Prefix of model name.
epoch : int
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23,848 | apache/incubator-mxnet | python/mxnet/rnn/rnn.py | do_rnn_checkpoint | def do_rnn_checkpoint(cells, prefix, period=1):
"""Make a callback to checkpoint Module to prefix every epoch.
unpacks weights used by cells before saving.
Parameters
----------
cells : mxnet.rnn.RNNCell or list of RNNCells
The RNN cells used by this symbol.
prefix : str
The fil... | python | def do_rnn_checkpoint(cells, prefix, period=1):
"""Make a callback to checkpoint Module to prefix every epoch.
unpacks weights used by cells before saving.
Parameters
----------
cells : mxnet.rnn.RNNCell or list of RNNCells
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prefix : str
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23,849 | apache/incubator-mxnet | python/mxnet/gluon/nn/basic_layers.py | Sequential.hybridize | def hybridize(self, active=True, **kwargs):
"""Activates or deactivates `HybridBlock` s recursively. Has no effect on
non-hybrid children.
Parameters
----------
active : bool, default True
Whether to turn hybrid on or off.
**kwargs : string
Additi... | python | def hybridize(self, active=True, **kwargs):
"""Activates or deactivates `HybridBlock` s recursively. Has no effect on
non-hybrid children.
Parameters
----------
active : bool, default True
Whether to turn hybrid on or off.
**kwargs : string
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23,850 | apache/incubator-mxnet | example/ctc/lstm_ocr_infer.py | read_img | def read_img(path):
""" Reads image specified by path into numpy.ndarray"""
img = cv2.resize(cv2.imread(path, 0), (80, 30)).astype(np.float32) / 255
img = np.expand_dims(img.transpose(1, 0), 0)
return img | python | def read_img(path):
""" Reads image specified by path into numpy.ndarray"""
img = cv2.resize(cv2.imread(path, 0), (80, 30)).astype(np.float32) / 255
img = np.expand_dims(img.transpose(1, 0), 0)
return img | [
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23,851 | apache/incubator-mxnet | example/ctc/lstm_ocr_infer.py | lstm_init_states | def lstm_init_states(batch_size):
""" Returns a tuple of names and zero arrays for LSTM init states"""
hp = Hyperparams()
init_shapes = lstm.init_states(batch_size=batch_size, num_lstm_layer=hp.num_lstm_layer, num_hidden=hp.num_hidden)
init_names = [s[0] for s in init_shapes]
init_arrays = [mx.nd.ze... | python | def lstm_init_states(batch_size):
""" Returns a tuple of names and zero arrays for LSTM init states"""
hp = Hyperparams()
init_shapes = lstm.init_states(batch_size=batch_size, num_lstm_layer=hp.num_lstm_layer, num_hidden=hp.num_hidden)
init_names = [s[0] for s in init_shapes]
init_arrays = [mx.nd.ze... | [
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23,852 | apache/incubator-mxnet | example/ctc/lstm_ocr_infer.py | load_module | def load_module(prefix, epoch, data_names, data_shapes):
"""Loads the model from checkpoint specified by prefix and epoch, binds it
to an executor, and sets its parameters and returns a mx.mod.Module
"""
sym, arg_params, aux_params = mx.model.load_checkpoint(prefix, epoch)
# We don't need CTC loss ... | python | def load_module(prefix, epoch, data_names, data_shapes):
"""Loads the model from checkpoint specified by prefix and epoch, binds it
to an executor, and sets its parameters and returns a mx.mod.Module
"""
sym, arg_params, aux_params = mx.model.load_checkpoint(prefix, epoch)
# We don't need CTC loss ... | [
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23,853 | apache/incubator-mxnet | amalgamation/python/mxnet_predict.py | c_str | def c_str(string):
""""Convert a python string to C string."""
if not isinstance(string, str):
string = string.decode('ascii')
return ctypes.c_char_p(string.encode('utf-8')) | python | def c_str(string):
""""Convert a python string to C string."""
if not isinstance(string, str):
string = string.decode('ascii')
return ctypes.c_char_p(string.encode('utf-8')) | [
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23,854 | apache/incubator-mxnet | amalgamation/python/mxnet_predict.py | _find_lib_path | def _find_lib_path():
"""Find mxnet library."""
curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
amalgamation_lib_path = os.path.join(curr_path, '../../lib/libmxnet_predict.so')
if os.path.exists(amalgamation_lib_path) and os.path.isfile(amalgamation_lib_path):
lib_path... | python | def _find_lib_path():
"""Find mxnet library."""
curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
amalgamation_lib_path = os.path.join(curr_path, '../../lib/libmxnet_predict.so')
if os.path.exists(amalgamation_lib_path) and os.path.isfile(amalgamation_lib_path):
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23,855 | apache/incubator-mxnet | amalgamation/python/mxnet_predict.py | _load_lib | def _load_lib():
"""Load libary by searching possible path."""
lib_path = _find_lib_path()
lib = ctypes.cdll.LoadLibrary(lib_path[0])
# DMatrix functions
lib.MXGetLastError.restype = ctypes.c_char_p
return lib | python | def _load_lib():
"""Load libary by searching possible path."""
lib_path = _find_lib_path()
lib = ctypes.cdll.LoadLibrary(lib_path[0])
# DMatrix functions
lib.MXGetLastError.restype = ctypes.c_char_p
return lib | [
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23,856 | apache/incubator-mxnet | amalgamation/python/mxnet_predict.py | load_ndarray_file | def load_ndarray_file(nd_bytes):
"""Load ndarray file and return as list of numpy array.
Parameters
----------
nd_bytes : str or bytes
The internal ndarray bytes
Returns
-------
out : dict of str to numpy array or list of numpy array
The output list or dict, depending on wh... | python | def load_ndarray_file(nd_bytes):
"""Load ndarray file and return as list of numpy array.
Parameters
----------
nd_bytes : str or bytes
The internal ndarray bytes
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-------
out : dict of str to numpy array or list of numpy array
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23,857 | apache/incubator-mxnet | amalgamation/python/mxnet_predict.py | Predictor.forward | def forward(self, **kwargs):
"""Perform forward to get the output.
Parameters
----------
**kwargs
Keyword arguments of input variable name to data.
Examples
--------
>>> predictor.forward(data=mydata)
>>> out = predictor.get_output(0)
... | python | def forward(self, **kwargs):
"""Perform forward to get the output.
Parameters
----------
**kwargs
Keyword arguments of input variable name to data.
Examples
--------
>>> predictor.forward(data=mydata)
>>> out = predictor.get_output(0)
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23,858 | apache/incubator-mxnet | amalgamation/python/mxnet_predict.py | Predictor.reshape | def reshape(self, input_shapes):
"""Change the input shape of the predictor.
Parameters
----------
input_shapes : dict of str to tuple
The new shape of input data.
Examples
--------
>>> predictor.reshape({'data':data_shape_tuple})
"""
... | python | def reshape(self, input_shapes):
"""Change the input shape of the predictor.
Parameters
----------
input_shapes : dict of str to tuple
The new shape of input data.
Examples
--------
>>> predictor.reshape({'data':data_shape_tuple})
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23,859 | apache/incubator-mxnet | amalgamation/python/mxnet_predict.py | Predictor.get_output | def get_output(self, index):
"""Get the index-th output.
Parameters
----------
index : int
The index of output.
Returns
-------
out : numpy array.
The output array.
"""
pdata = ctypes.POINTER(mx_uint)()
ndim = mx_u... | python | def get_output(self, index):
"""Get the index-th output.
Parameters
----------
index : int
The index of output.
Returns
-------
out : numpy array.
The output array.
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23,860 | apache/incubator-mxnet | example/reinforcement-learning/dqn/atari_game.py | AtariGame.begin_episode | def begin_episode(self, max_episode_step=DEFAULT_MAX_EPISODE_STEP):
"""
Begin an episode of a game instance. We can play the game for a maximum of
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"""
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"""
Begin an episode of a game instance. We can play the game for a maximum of
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23,861 | apache/incubator-mxnet | python/mxnet/gluon/rnn/rnn_cell.py | RecurrentCell.forward | def forward(self, inputs, states):
"""Unrolls the recurrent cell for one time step.
Parameters
----------
inputs : sym.Variable
Input symbol, 2D, of shape (batch_size * num_units).
states : list of sym.Variable
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"""Unrolls the recurrent cell for one time step.
Parameters
----------
inputs : sym.Variable
Input symbol, 2D, of shape (batch_size * num_units).
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23,862 | apache/incubator-mxnet | python/mxnet/module/base_module.py | _check_input_names | def _check_input_names(symbol, names, typename, throw):
"""Check that all input names are in symbol's arguments."""
args = symbol.list_arguments()
for name in names:
if name in args:
continue
candidates = [arg for arg in args if
not arg.endswith('_weight') a... | python | def _check_input_names(symbol, names, typename, throw):
"""Check that all input names are in symbol's arguments."""
args = symbol.list_arguments()
for name in names:
if name in args:
continue
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23,863 | apache/incubator-mxnet | python/mxnet/module/base_module.py | _check_names_match | def _check_names_match(data_names, data_shapes, name, throw):
"""Check that input names matches input data descriptors."""
actual = [x[0] for x in data_shapes]
if sorted(data_names) != sorted(actual):
msg = "Data provided by %s_shapes don't match names specified by %s_names (%s vs. %s)"%(
... | python | def _check_names_match(data_names, data_shapes, name, throw):
"""Check that input names matches input data descriptors."""
actual = [x[0] for x in data_shapes]
if sorted(data_names) != sorted(actual):
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23,864 | apache/incubator-mxnet | python/mxnet/module/base_module.py | _parse_data_desc | def _parse_data_desc(data_names, label_names, data_shapes, label_shapes):
"""parse data_attrs into DataDesc format and check that names match"""
data_shapes = [x if isinstance(x, DataDesc) else DataDesc(*x) for x in data_shapes]
_check_names_match(data_names, data_shapes, 'data', True)
if label_shapes i... | python | def _parse_data_desc(data_names, label_names, data_shapes, label_shapes):
"""parse data_attrs into DataDesc format and check that names match"""
data_shapes = [x if isinstance(x, DataDesc) else DataDesc(*x) for x in data_shapes]
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23,865 | apache/incubator-mxnet | python/mxnet/module/base_module.py | BaseModule.forward_backward | def forward_backward(self, data_batch):
"""A convenient function that calls both ``forward`` and ``backward``."""
self.forward(data_batch, is_train=True)
self.backward() | python | def forward_backward(self, data_batch):
"""A convenient function that calls both ``forward`` and ``backward``."""
self.forward(data_batch, is_train=True)
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23,866 | apache/incubator-mxnet | python/mxnet/module/base_module.py | BaseModule.score | def score(self, eval_data, eval_metric, num_batch=None, batch_end_callback=None,
score_end_callback=None,
reset=True, epoch=0, sparse_row_id_fn=None):
"""Runs prediction on ``eval_data`` and evaluates the performance according to
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Checkout `... | python | def score(self, eval_data, eval_metric, num_batch=None, batch_end_callback=None,
score_end_callback=None,
reset=True, epoch=0, sparse_row_id_fn=None):
"""Runs prediction on ``eval_data`` and evaluates the performance according to
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23,867 | apache/incubator-mxnet | python/mxnet/module/base_module.py | BaseModule.iter_predict | def iter_predict(self, eval_data, num_batch=None, reset=True, sparse_row_id_fn=None):
"""Iterates over predictions.
Examples
--------
>>> for pred, i_batch, batch in module.iter_predict(eval_data):
... # pred is a list of outputs from the module
... # i_batch is ... | python | def iter_predict(self, eval_data, num_batch=None, reset=True, sparse_row_id_fn=None):
"""Iterates over predictions.
Examples
--------
>>> for pred, i_batch, batch in module.iter_predict(eval_data):
... # pred is a list of outputs from the module
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23,868 | apache/incubator-mxnet | python/mxnet/module/base_module.py | BaseModule.predict | def predict(self, eval_data, num_batch=None, merge_batches=True, reset=True,
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"""Runs prediction and collects the outputs.
When `merge_batches` is ``True`` (by default), the return value will be a list
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23,869 | apache/incubator-mxnet | python/mxnet/module/base_module.py | BaseModule.load_params | def load_params(self, fname):
"""Loads model parameters from file.
Parameters
----------
fname : str
Path to input param file.
Examples
--------
>>> # An example of loading module parameters.
>>> mod.load_params('myfile')
"""
... | python | def load_params(self, fname):
"""Loads model parameters from file.
Parameters
----------
fname : str
Path to input param file.
Examples
--------
>>> # An example of loading module parameters.
>>> mod.load_params('myfile')
"""
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23,870 | apache/incubator-mxnet | python/mxnet/libinfo.py | find_include_path | def find_include_path():
"""Find MXNet included header files.
Returns
-------
incl_path : string
Path to the header files.
"""
incl_from_env = os.environ.get('MXNET_INCLUDE_PATH')
if incl_from_env:
if os.path.isdir(incl_from_env):
if not os.path.isabs(incl_from_e... | python | def find_include_path():
"""Find MXNet included header files.
Returns
-------
incl_path : string
Path to the header files.
"""
incl_from_env = os.environ.get('MXNET_INCLUDE_PATH')
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23,871 | apache/incubator-mxnet | example/ctc/captcha_generator.py | CaptchaGen.image | def image(self, captcha_str):
"""Generate a greyscale captcha image representing number string
Parameters
----------
captcha_str: str
string a characters for captcha image
Returns
-------
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"""Generate a greyscale captcha image representing number string
Parameters
----------
captcha_str: str
string a characters for captcha image
Returns
-------
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23,872 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer.register | def register(klass):
"""Registers a new optimizer.
Once an optimizer is registered, we can create an instance of this
optimizer with `create_optimizer` later.
Examples
--------
>>> @mx.optimizer.Optimizer.register
... class MyOptimizer(mx.optimizer.Optimizer):
... | python | def register(klass):
"""Registers a new optimizer.
Once an optimizer is registered, we can create an instance of this
optimizer with `create_optimizer` later.
Examples
--------
>>> @mx.optimizer.Optimizer.register
... class MyOptimizer(mx.optimizer.Optimizer):
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23,873 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer.create_optimizer | def create_optimizer(name, **kwargs):
"""Instantiates an optimizer with a given name and kwargs.
.. note:: We can use the alias `create` for ``Optimizer.create_optimizer``.
Parameters
----------
name: str
Name of the optimizer. Should be the name
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"""Instantiates an optimizer with a given name and kwargs.
.. note:: We can use the alias `create` for ``Optimizer.create_optimizer``.
Parameters
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name: str
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23,874 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer.create_state_multi_precision | def create_state_multi_precision(self, index, weight):
"""Creates auxiliary state for a given weight, including FP32 high
precision copy if original weight is FP16.
This method is provided to perform automatic mixed precision training
for optimizers that do not support it themselves.
... | python | def create_state_multi_precision(self, index, weight):
"""Creates auxiliary state for a given weight, including FP32 high
precision copy if original weight is FP16.
This method is provided to perform automatic mixed precision training
for optimizers that do not support it themselves.
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23,875 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer.update_multi_precision | def update_multi_precision(self, index, weight, grad, state):
"""Updates the given parameter using the corresponding gradient and state.
Mixed precision version.
Parameters
----------
index : int
The unique index of the parameter into the individual learning
... | python | def update_multi_precision(self, index, weight, grad, state):
"""Updates the given parameter using the corresponding gradient and state.
Mixed precision version.
Parameters
----------
index : int
The unique index of the parameter into the individual learning
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23,876 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer.set_lr_mult | def set_lr_mult(self, args_lr_mult):
"""Sets an individual learning rate multiplier for each parameter.
If you specify a learning rate multiplier for a parameter, then
the learning rate for the parameter will be set as the product of
the global learning rate `self.lr` and its multiplier... | python | def set_lr_mult(self, args_lr_mult):
"""Sets an individual learning rate multiplier for each parameter.
If you specify a learning rate multiplier for a parameter, then
the learning rate for the parameter will be set as the product of
the global learning rate `self.lr` and its multiplier... | [
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23,877 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer.set_wd_mult | def set_wd_mult(self, args_wd_mult):
"""Sets an individual weight decay multiplier for each parameter.
By default, if `param_idx2name` was provided in the
constructor, the weight decay multipler is set as 0 for all
parameters whose name don't end with ``_weight`` or
``_gamma``.
... | python | def set_wd_mult(self, args_wd_mult):
"""Sets an individual weight decay multiplier for each parameter.
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constructor, the weight decay multipler is set as 0 for all
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23,878 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer._set_current_context | def _set_current_context(self, device_id):
"""Sets the number of the currently handled device.
Parameters
----------
device_id : int
The number of current device.
"""
if device_id not in self._all_index_update_counts:
self._all_index_update_counts... | python | def _set_current_context(self, device_id):
"""Sets the number of the currently handled device.
Parameters
----------
device_id : int
The number of current device.
"""
if device_id not in self._all_index_update_counts:
self._all_index_update_counts... | [
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23,879 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer._update_count | def _update_count(self, index):
"""Updates num_update.
Parameters
----------
index : int or list of int
The index to be updated.
"""
if not isinstance(index, (list, tuple)):
index = [index]
for idx in index:
if idx not in self.... | python | def _update_count(self, index):
"""Updates num_update.
Parameters
----------
index : int or list of int
The index to be updated.
"""
if not isinstance(index, (list, tuple)):
index = [index]
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23,880 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Optimizer._get_lrs | def _get_lrs(self, indices):
"""Gets the learning rates given the indices of the weights.
Parameters
----------
indices : list of int
Indices corresponding to weights.
Returns
-------
lrs : list of float
Learning rates for those indices.
... | python | def _get_lrs(self, indices):
"""Gets the learning rates given the indices of the weights.
Parameters
----------
indices : list of int
Indices corresponding to weights.
Returns
-------
lrs : list of float
Learning rates for those indices.
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23,881 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Updater.sync_state_context | def sync_state_context(self, state, context):
"""sync state context."""
if isinstance(state, NDArray):
return state.as_in_context(context)
elif isinstance(state, (tuple, list)):
synced_state = (self.sync_state_context(i, context) for i in state)
if isinstance(... | python | def sync_state_context(self, state, context):
"""sync state context."""
if isinstance(state, NDArray):
return state.as_in_context(context)
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23,882 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Updater.set_states | def set_states(self, states):
"""Sets updater states."""
states = pickle.loads(states)
if isinstance(states, tuple) and len(states) == 2:
self.states, self.optimizer = states
else:
self.states = states
self.states_synced = dict.fromkeys(self.states.keys(),... | python | def set_states(self, states):
"""Sets updater states."""
states = pickle.loads(states)
if isinstance(states, tuple) and len(states) == 2:
self.states, self.optimizer = states
else:
self.states = states
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23,883 | apache/incubator-mxnet | python/mxnet/optimizer/optimizer.py | Updater.get_states | def get_states(self, dump_optimizer=False):
"""Gets updater states.
Parameters
----------
dump_optimizer : bool, default False
Whether to also save the optimizer itself. This would also save optimizer
information such as learning rate and weight decay schedules.
... | python | def get_states(self, dump_optimizer=False):
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Parameters
----------
dump_optimizer : bool, default False
Whether to also save the optimizer itself. This would also save optimizer
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23,884 | apache/incubator-mxnet | example/gluon/lipnet/utils/preprocess_data.py | Video.from_frames | def from_frames(self, path):
"""
Read from frames
"""
frames_path = sorted([os.path.join(path, x) for x in os.listdir(path)])
frames = [ndimage.imread(frame_path) for frame_path in frames_path]
self.handle_type(frames)
return self | python | def from_frames(self, path):
"""
Read from frames
"""
frames_path = sorted([os.path.join(path, x) for x in os.listdir(path)])
frames = [ndimage.imread(frame_path) for frame_path in frames_path]
self.handle_type(frames)
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23,885 | apache/incubator-mxnet | example/gluon/lipnet/utils/preprocess_data.py | Video.from_video | def from_video(self, path):
"""
Read from videos
"""
frames = self.get_video_frames(path)
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"""
Read from videos
"""
frames = self.get_video_frames(path)
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23,886 | apache/incubator-mxnet | example/gluon/lipnet/utils/preprocess_data.py | Video.handle_type | def handle_type(self, frames):
"""
Config video types
"""
if self.vtype == 'mouth':
self.process_frames_mouth(frames)
elif self.vtype == 'face':
self.process_frames_face(frames)
else:
raise Exception('Video type not found') | python | def handle_type(self, frames):
"""
Config video types
"""
if self.vtype == 'mouth':
self.process_frames_mouth(frames)
elif self.vtype == 'face':
self.process_frames_face(frames)
else:
raise Exception('Video type not found') | [
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23,887 | apache/incubator-mxnet | example/gluon/lipnet/utils/preprocess_data.py | Video.process_frames_face | def process_frames_face(self, frames):
"""
Preprocess from frames using face detector
"""
detector = dlib.get_frontal_face_detector()
predictor = dlib.shape_predictor(self.face_predictor_path)
mouth_frames = self.get_frames_mouth(detector, predictor, frames)
self.... | python | def process_frames_face(self, frames):
"""
Preprocess from frames using face detector
"""
detector = dlib.get_frontal_face_detector()
predictor = dlib.shape_predictor(self.face_predictor_path)
mouth_frames = self.get_frames_mouth(detector, predictor, frames)
self.... | [
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23,888 | apache/incubator-mxnet | example/gluon/lipnet/utils/preprocess_data.py | Video.process_frames_mouth | def process_frames_mouth(self, frames):
"""
Preprocess from frames using mouth detector
"""
self.face = np.array(frames)
self.mouth = np.array(frames)
self.set_data(frames) | python | def process_frames_mouth(self, frames):
"""
Preprocess from frames using mouth detector
"""
self.face = np.array(frames)
self.mouth = np.array(frames)
self.set_data(frames) | [
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23,889 | apache/incubator-mxnet | example/gluon/lipnet/utils/preprocess_data.py | Video.get_frames_mouth | def get_frames_mouth(self, detector, predictor, frames):
"""
Get frames using mouth crop
"""
mouth_width = 100
mouth_height = 50
horizontal_pad = 0.19
normalize_ratio = None
mouth_frames = []
for frame in frames:
dets = detector(frame, ... | python | def get_frames_mouth(self, detector, predictor, frames):
"""
Get frames using mouth crop
"""
mouth_width = 100
mouth_height = 50
horizontal_pad = 0.19
normalize_ratio = None
mouth_frames = []
for frame in frames:
dets = detector(frame, ... | [
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23,890 | apache/incubator-mxnet | example/gluon/lipnet/utils/preprocess_data.py | Video.get_video_frames | def get_video_frames(self, path):
"""
Get video frames
"""
videogen = skvideo.io.vreader(path)
frames = np.array([frame for frame in videogen])
return frames | python | def get_video_frames(self, path):
"""
Get video frames
"""
videogen = skvideo.io.vreader(path)
frames = np.array([frame for frame in videogen])
return frames | [
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23,891 | apache/incubator-mxnet | example/gluon/lipnet/utils/preprocess_data.py | Video.set_data | def set_data(self, frames):
"""
Prepare the input of model
"""
data_frames = []
for frame in frames:
#frame H x W x C
frame = frame.swapaxes(0, 1) # swap width and height to form format W x H x C
if len(frame.shape) < 3:
frame =... | python | def set_data(self, frames):
"""
Prepare the input of model
"""
data_frames = []
for frame in frames:
#frame H x W x C
frame = frame.swapaxes(0, 1) # swap width and height to form format W x H x C
if len(frame.shape) < 3:
frame =... | [
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23,892 | apache/incubator-mxnet | example/gluon/style_transfer/utils.py | subtract_imagenet_mean_preprocess_batch | def subtract_imagenet_mean_preprocess_batch(batch):
"""Subtract ImageNet mean pixel-wise from a BGR image."""
batch = F.swapaxes(batch,0, 1)
(r, g, b) = F.split(batch, num_outputs=3, axis=0)
r = r - 123.680
g = g - 116.779
b = b - 103.939
batch = F.concat(b, g, r, dim=0)
batch = F.swapax... | python | def subtract_imagenet_mean_preprocess_batch(batch):
"""Subtract ImageNet mean pixel-wise from a BGR image."""
batch = F.swapaxes(batch,0, 1)
(r, g, b) = F.split(batch, num_outputs=3, axis=0)
r = r - 123.680
g = g - 116.779
b = b - 103.939
batch = F.concat(b, g, r, dim=0)
batch = F.swapax... | [
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23,893 | apache/incubator-mxnet | example/gluon/style_transfer/utils.py | imagenet_clamp_batch | def imagenet_clamp_batch(batch, low, high):
""" Not necessary in practice """
F.clip(batch[:,0,:,:],low-123.680, high-123.680)
F.clip(batch[:,1,:,:],low-116.779, high-116.779)
F.clip(batch[:,2,:,:],low-103.939, high-103.939) | python | def imagenet_clamp_batch(batch, low, high):
""" Not necessary in practice """
F.clip(batch[:,0,:,:],low-123.680, high-123.680)
F.clip(batch[:,1,:,:],low-116.779, high-116.779)
F.clip(batch[:,2,:,:],low-103.939, high-103.939) | [
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23,894 | apache/incubator-mxnet | example/gluon/audio/urban_sounds/train.py | evaluate_accuracy | def evaluate_accuracy(data_iterator, net):
"""Function to evaluate accuracy of any data iterator passed to it as an argument"""
acc = mx.metric.Accuracy()
for data, label in data_iterator:
output = net(data)
predictions = nd.argmax(output, axis=1)
predictions = predictions.reshape((-... | python | def evaluate_accuracy(data_iterator, net):
"""Function to evaluate accuracy of any data iterator passed to it as an argument"""
acc = mx.metric.Accuracy()
for data, label in data_iterator:
output = net(data)
predictions = nd.argmax(output, axis=1)
predictions = predictions.reshape((-... | [
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23,895 | apache/incubator-mxnet | python/mxnet/engine.py | set_bulk_size | def set_bulk_size(size):
"""Set size limit on bulk execution.
Bulk execution bundles many operators to run together.
This can improve performance when running a lot of small
operators sequentially.
Parameters
----------
size : int
Maximum number of operators that can be bundled in ... | python | def set_bulk_size(size):
"""Set size limit on bulk execution.
Bulk execution bundles many operators to run together.
This can improve performance when running a lot of small
operators sequentially.
Parameters
----------
size : int
Maximum number of operators that can be bundled in ... | [
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Bulk execution bundles many operators to run together.
This can improve performance when running a lot of small
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Parameters
----------
size : int
Maximum number of operators that can be bundled in a bulk.
Returns
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23,896 | apache/incubator-mxnet | example/gluon/lipnet/BeamSearch.py | applyLM | def applyLM(parentBeam, childBeam, classes, lm):
"""
calculate LM score of child beam by taking score from parent beam and bigram probability of last two chars
"""
if lm and not childBeam.lmApplied:
c1 = classes[parentBeam.labeling[-1] if parentBeam.labeling else classes.index(' ')] # first char... | python | def applyLM(parentBeam, childBeam, classes, lm):
"""
calculate LM score of child beam by taking score from parent beam and bigram probability of last two chars
"""
if lm and not childBeam.lmApplied:
c1 = classes[parentBeam.labeling[-1] if parentBeam.labeling else classes.index(' ')] # first char... | [
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23,897 | apache/incubator-mxnet | example/gluon/lipnet/BeamSearch.py | addBeam | def addBeam(beamState, labeling):
"""
add beam if it does not yet exist
"""
if labeling not in beamState.entries:
beamState.entries[labeling] = BeamEntry() | python | def addBeam(beamState, labeling):
"""
add beam if it does not yet exist
"""
if labeling not in beamState.entries:
beamState.entries[labeling] = BeamEntry() | [
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23,898 | apache/incubator-mxnet | example/gluon/lipnet/BeamSearch.py | ctcBeamSearch | def ctcBeamSearch(mat, classes, lm, k, beamWidth):
"""
beam search as described by the paper of Hwang et al. and the paper of Graves et al.
"""
blankIdx = len(classes)
maxT, maxC = mat.shape
# initialise beam state
last = BeamState()
labeling = ()
last.entries[labeling] = BeamEntry... | python | def ctcBeamSearch(mat, classes, lm, k, beamWidth):
"""
beam search as described by the paper of Hwang et al. and the paper of Graves et al.
"""
blankIdx = len(classes)
maxT, maxC = mat.shape
# initialise beam state
last = BeamState()
labeling = ()
last.entries[labeling] = BeamEntry... | [
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23,899 | apache/incubator-mxnet | example/gluon/lipnet/BeamSearch.py | BeamState.norm | def norm(self):
"""
length-normalise LM score
"""
for (k, _) in self.entries.items():
labelingLen = len(self.entries[k].labeling)
self.entries[k].prText = self.entries[k].prText ** (1.0 / (labelingLen if labelingLen else 1.0)) | python | def norm(self):
"""
length-normalise LM score
"""
for (k, _) in self.entries.items():
labelingLen = len(self.entries[k].labeling)
self.entries[k].prText = self.entries[k].prText ** (1.0 / (labelingLen if labelingLen else 1.0)) | [
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