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add embedding 2.0 #26649
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seiriosPlus
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Sep 1, 2020
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add embedding 2.0 #26649
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8d9ea96
add embedding 2.0
seiriosPlus 1c2fe3e
add embedding 2.0
seiriosPlus a275b2f
Merge branch 'develop' of https://github.com/PaddlePaddle/Paddle into…
seiriosPlus 309b9b1
fix reviewer's comments
seiriosPlus d7b4ded
Merge branch 'develop' of https://github.com/PaddlePaddle/Paddle into…
seiriosPlus c48e73c
fix fuse
seiriosPlus c5a569d
add nn.Embedding
seiriosPlus fc528b2
add nn.Embedding
seiriosPlus a4194bd
add nn.Embedding
seiriosPlus 51611c4
add nn.Embedding
seiriosPlus 1bc093a
add nn.Embedding
seiriosPlus c2ebb07
merge develop
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merge develop
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merge develop
seiriosPlus ac9f917
fix API
seiriosPlus e4e440f
fix UT
seiriosPlus 7fb14a5
fix docstring
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fix UT
seiriosPlus 4d19d63
support INT32 input
seiriosPlus 924851b
support INT32 input
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support INT32 input
seiriosPlus 1c387bc
support INT32 input
seiriosPlus bdb2399
fix embedding 2.0 doc
seiriosPlus 8cf4b3a
add BugfixWithBehaviorChanged
seiriosPlus 5e3de1c
add UT
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add UT
seiriosPlus 569536d
add cuda support for int32
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69 changes: 69 additions & 0 deletions
69
python/paddle/fluid/tests/unittests/test_nn_functional_embedding.py
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,69 @@ | ||
# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. | ||
# | ||
# Licensed under the Apache License, Version 2.0 (the "License"); | ||
# you may not use this file except in compliance with the License. | ||
# You may obtain a copy of the License at | ||
# | ||
# http://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# Unless required by applicable law or agreed to in writing, software | ||
# distributed under the License is distributed on an "AS IS" BASIS, | ||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
# See the License for the specific language governing permissions and | ||
# limitations under the License. | ||
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from __future__ import print_function | ||
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import unittest | ||
import numpy as np | ||
import paddle.fluid as fluid | ||
import paddle.nn.functional as functional | ||
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class EmbeddingStatic(unittest.TestCase): | ||
def test_1(self): | ||
prog = fluid.Program() | ||
with fluid.program_guard(prog): | ||
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def test_bad_x(): | ||
initializer = fluid.initializer.NumpyArrayInitializer( | ||
np.random.random(size=(128, 100))) | ||
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param_attr = fluid.ParamAttr( | ||
name="emb_weight", | ||
learning_rate=0.5, | ||
initializer=initializer, | ||
trainable=True) | ||
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weight = prog.global_block().create_parameter( | ||
(128, 100), attr=param_attr, dtype="float32") | ||
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label = fluid.layers.data( | ||
name="label", | ||
shape=[4], | ||
append_batch_size=False, | ||
dtype="int64") | ||
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emb = functional.embedding( | ||
x=label, weight=weight, sparse=True, name="embedding") | ||
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test_bad_x() | ||
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class EmbeddingDygraph(unittest.TestCase): | ||
def test_1(self): | ||
import paddle | ||
import paddle.nn as nn | ||
import numpy as np | ||
paddle.disable_static() | ||
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# example 1 | ||
inp_word = np.array([[2, 3, 5], [4, 2, 1]]).astype('int64') | ||
inp_word.shape # [2, 3] | ||
dict_size = 20 | ||
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emb = nn.Embedding(dict_size, 32, weight_attr='emb.w', sparse=False) | ||
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if __name__ == '__main__': | ||
unittest.main() |
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Original file line number | Diff line number | Diff line change |
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@@ -19,7 +19,7 @@ | |
from ...fluid.layers import core | ||
from ...fluid.data_feeder import check_variable_and_dtype, check_dtype | ||
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__all__ = ['one_hot'] | ||
__all__ = ['one_hot', 'embedding'] | ||
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def one_hot(x, num_classes, name=None): | ||
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@@ -83,6 +83,7 @@ def one_hot(x, num_classes, name=None): | |
# [0., 1., 0., 0.], | ||
# [0., 0., 0., 1.], | ||
# [1., 0., 0., 0.]] | ||
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""" | ||
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if in_dygraph_mode(): | ||
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@@ -108,3 +109,101 @@ def one_hot(x, num_classes, name=None): | |
outputs={'Out': one_hot_out}, | ||
stop_gradient=True) | ||
return one_hot_out | ||
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def embedding(x, weight, padding_idx=None, sparse=False, name=None): | ||
""" | ||
The operator is used to lookup embeddings vector of ids provided by :attr:`input` . | ||
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The shape of output Tensor is generated by appending the last dimension of the input Tensor shape | ||
with emb_size. | ||
**Note:** The id in :attr:`input` must satisfy :math:`0 =< id < size[0]` , | ||
otherwise the program will throw an exception and exit. | ||
.. code-block:: text | ||
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Case 1: | ||
input is a Tensor. padding_idx = -1 | ||
input.data = [[1, 3], [2, 4], [4, 127]] | ||
input.shape = [3, 2] | ||
Given size = [128, 16] | ||
output is a Tensor: | ||
out.shape = [3, 2, 16] | ||
out.data = [[[0.129435295, 0.244512452, ..., 0.436322452], | ||
[0.345421456, 0.524563927, ..., 0.144534654]], | ||
[[0.345249859, 0.124939536, ..., 0.194353745], | ||
[0.945345345, 0.435394634, ..., 0.435345365]], | ||
[[0.945345345, 0.435394634, ..., 0.435345365], | ||
[0.0, 0.0, ..., 0.0 ]]] # padding data | ||
The input padding_idx is less than 0, it is automatically converted to padding_idx = -1 + 128 = 127 | ||
It will pad all-zero data when ids is 127. | ||
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Args: | ||
x(Tensor): A Tensor or LoDTensor with type int64, which contains the id information. | ||
The last dimension of Tensor shape must be equal to 1. The value of the input id should | ||
satisfy :math:`0<= id < size[0]` . | ||
weight (Tensor): The weight. A Tensor with shape of lookup table parameter. It should have two elements which | ||
indicates the size of the dictionary of embeddings and the size of each embedding vector respectively. | ||
sparse(bool): The flag indicating whether to use sparse update. This parameter only | ||
affects the performance of the backwards gradient update. It is recommended to set | ||
True because sparse update is faster. But some optimizers does not support sparse update, | ||
such as :ref:`api_fluid_optimizer_AdadeltaOptimizer` , :ref:`api_fluid_optimizer_AdamaxOptimizer` , | ||
:ref:`api_fluid_optimizer_DecayedAdagradOptimizer` , :ref:`api_fluid_optimizer_FtrlOptimizer` , | ||
:ref:`api_fluid_optimizer_LambOptimizer` and :ref:`api_fluid_optimizer_LarsMomentumOptimizer` . | ||
In these cases, is_sparse must be False. Default: False. | ||
padding_idx(int|long|None): padding_idx needs to be in the interval [-vocab_size, vocab_size). | ||
If :math:`padding\_idx < 0`, the :math:`padding\_idx` will automatically be converted | ||
to :math:`vocab\_size + padding\_idx` . It will output all-zero padding data whenever lookup | ||
encounters :math:`padding\_idx` in id. And the padding data will not be updated while training. | ||
If set None, it makes no effect to output. Default: None. | ||
name(str|None): For detailed information, please refer | ||
to :ref:`api_guide_Name`. Usually name is no need to set and | ||
None by default. | ||
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Returns: | ||
Tensor: Embedding Tensor mapped by input. The data type is the same as :attr:`weight`. | ||
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Examples: | ||
.. code-block:: python | ||
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import paddle | ||
import paddle.nn as nn | ||
import numpy as np | ||
paddle.disable_static() | ||
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# example 1 | ||
inp_word = np.array([[2, 3, 5], [4, 2, 1]]).astype('int64') | ||
inp_word.shape # [2, 3] | ||
dict_size = 20 | ||
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emb = nn.Embedding(dict_size, 32, weight_attr='emb.w', sparse=False) | ||
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""" | ||
if in_dygraph_mode(): | ||
return core.ops.lookup_table_v2( | ||
weight, x, 'is_sparse', sparse, 'is_distributed', False, | ||
'remote_prefetch', False, 'padding_idx', padding_idx) | ||
else: | ||
helper = LayerHelper('embedding', **locals()) | ||
dtype = helper.input_dtype() | ||
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check_variable_and_dtype(x, 'input', ['int64'], 'embedding') | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. 支持下int32 |
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is_distributed = False | ||
remote_prefetch = sparse and (not is_distributed) | ||
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tmp = helper.create_variable_for_type_inference(dtype) | ||
padding_idx = -1 if padding_idx is None else padding_idx if padding_idx >= 0 else ( | ||
weight.shape[0] + padding_idx) | ||
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helper.append_op( | ||
type='lookup_table_v2', | ||
inputs={'Ids': x, | ||
'W': weight}, | ||
outputs={'Out': tmp}, | ||
attrs={ | ||
'is_sparse': sparse, | ||
'is_distributed': is_distributed, | ||
'remote_prefetch': remote_prefetch, | ||
'padding_idx': padding_idx | ||
}) | ||
return tmp |
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这个embedding和 functional下面的embedding不一样,应该直接说这个接口被直接废弃了