Add python wrapper for multiplex operator. #7739
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… fix-7717 Conflicts: doc/api/v2/fluid/layers.rst python/paddle/v2/fluid/layers/nn.py python/paddle/v2/fluid/tests/test_layers.py
kuke
reviewed
Jan 24, 2018
python/paddle/v2/fluid/layers/nn.py
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| input variables and let :math:`I_i` represents the i-th input variable and i | ||
| is in [0, :math:`m`). All input variables are tensors with same shape | ||
| [:math:`d_0`, :math:`d_1`, ..., :math:`d_R`]. Please note that rank of the | ||
| input tensor should be at least 2. Each input variable will be viewed as a |
python/paddle/v2/fluid/layers/nn.py
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| and :math:`N` for :math:`d_1` * :math:`d_2` * ... * :math:`d_R`. Let | ||
| :math:`I_i[j]` be the j-th row of the i-th input variable. The given index | ||
| variable should be a 2-D tensor with shape [:math:`M`, 1]. Let `ID[i]` be | ||
| the i-th index value of index variable. Then the output variable will be a |
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the i-th index value of index variable -> the i-th index of the index variable
python/paddle/v2/fluid/layers/nn.py
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| :math:`I_i[j]` be the j-th row of the i-th input variable. The given index | ||
| variable should be a 2-D tensor with shape [:math:`M`, 1]. Let `ID[i]` be | ||
| the i-th index value of index variable. Then the output variable will be a | ||
| tensor with shape [:math:`d_0`, :math:`d_1`, ..., :math:`d_R`]. If we view |
python/paddle/v2/fluid/layers/nn.py
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| the i-th index value of index variable. Then the output variable will be a | ||
| tensor with shape [:math:`d_0`, :math:`d_1`, ..., :math:`d_R`]. If we view | ||
| the output tensor as a 2-D matrix with shape [:math:`M`, :math:`N`] and let | ||
| :math:`O[i]` be the i-th row of the matrix, then values of `O[i]` come from |
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then values of O[i] come from -> then O[i] is equal to
python/paddle/v2/fluid/layers/nn.py
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| :math:`I_{ID[i]}[i]`. | ||
| Args: | ||
| inputs (list): Input variables which are tensors with same shape and the |
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Input variables which are tensors with same shape -> A variable list in which every variable has the same shape
python/paddle/v2/fluid/layers/nn.py
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| inputs (list): Input variables which are tensors with same shape and the | ||
| rank is at least 2. | ||
| index (Variable): Tensor<int32>, index variable which is a 2-D tensor | ||
| with shape [M, 1] where M for batch size. |
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where M for batch size -> where M is the batch size
kuke
reviewed
Jan 24, 2018
python/paddle/v2/fluid/layers/nn.py
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| Referring to the given index variable, this layer gathers from the input | ||
| variables to output a multiplex variable. Assuming that there are :math:`m` | ||
| input variables and let :math:`I_i` represents the i-th input variable and i |
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represents->represent or delete let
python/paddle/v2/fluid/layers/nn.py
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| """ | ||
| **Multiplex Layer** | ||
| Referring to the given index variable, this layer gathers from the input |
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this layer gathers from the input variables to output a multiplex variable -> this layer fetches rows from the input variables and constructs a multiplex variable for output
gather is not a suitable word.
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Resolves #7717