update reshape spec (#5575)

* update reshape spec

* fix input description

* use T_SHAPE instead T_INT

Co-authored-by: Patryk Elszkowski <patryk.elszkowki@intel.com>
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Patryk Elszkowski 2021-05-17 12:44:31 +02:00 committed by GitHub
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**Detailed description**:
*Reshape* layer takes two input tensors: the tensor to be resized and the output tensor shape. The values in the second tensor could be -1, 0 and any positive integer number. The two special values -1 and 0:
*Reshape* takes two input tensors: `data` to be resized and `shape` of the new output. The values in the `shape` could be `-1`, `0` and any positive integer number. The two special values `-1` and `0`:
* `0` means "copy the respective dimension *(left aligned)* of the input tensor" if `special_zero` is set to `true`; otherwise it is a normal dimension and is applicable to empty tensors.
* `-1` means that this dimension is calculated to keep the overall elements count the same as in the input tensor. Not more than one `-1` can be used in a reshape operation.
* `-1` means that this dimension is calculated to keep the overall elements count the same as in the input tensor. Not more than one `-1` can be used in a reshape operation.
If `special_zero` is set to `true` index of `0` cannot be larger than the rank of the input tensor.
If `special_zero` is set to `true` index of `0` cannot be larger than the rank of the input tensor.
**Attributes**:
* *special_zero*
* **Description**: *special_zero* controls how zero values in `shape` are interpreted. If *special_zero* is `false`, then 0 is interpreted as-is which means that output shape will contain a zero dimension at the specified location. Input and output tensors are empty in this case. If *special_zero* is `true`, then all zeros in `shape` implies the copying of corresponding dimensions from `data.shape` into the output shape *(left aligned)*.
* **Description**: *special_zero* controls how zero values in `shape` are interpreted. If *special_zero* is `false`, then `0` is interpreted as-is which means that output shape will contain a zero dimension at the specified location. Input and output tensors are empty in this case. If *special_zero* is `true`, then all zeros in `shape` implies the copying of corresponding dimensions from `data.shape` into the output shape *(left aligned)*.
* **Range of values**: `false` or `true`
* **Type**: boolean
* **Type**: `boolean`
* **Default value**: None
* **Required**: *yes*
**Inputs**:
* **1**: `data` -- multidimensional input tensor of type *T*. *Required*.
* **1**: `data` a tensor of type T and arbitrary shape. **Required**.
* **2**: `shape` -- 1D tensor of type *T_SHAPE* describing output shape. *Required*.
* **2**: `shape` 1D tensor of type *T_SHAPE* describing output shape. **Required**.
**Outputs**:
* **1**: Output tensor with the same content as a tensor at input `data` but with shape defined by input `shape`.
* **1**: Output tensor of type *T* with the same content as `data` input tensor but with shape defined by `shape` input tensor.
**Types**
* *T*: supported type.
* *T*: any numeric type.
* *T_SHAPE*: supported integer type.
* *T_SHAPE*: any supported integer type.
**Examples**
*Example 1: reshape empty tensor*
```xml
<layer ... type="Reshape" ...>
<data special_zero="false"/>
@ -65,6 +66,7 @@ If `special_zero` is set to `true` index of `0` cannot be larger than the rank o
</layer>
```
*Example 2: reshape tensor - preserve first dim, calculate second and fix value for third dim*
```xml
<layer ... type="Reshape" ...>
<data special_zero="true"/>
@ -89,6 +91,7 @@ If `special_zero` is set to `true` index of `0` cannot be larger than the rank o
</layer>
```
*Example 3: reshape tensor - preserve first two dims, fix value for third dim and calculate fourth*
```xml
<layer ... type="Reshape" ...>
<data special_zero="true"/>
@ -113,6 +116,7 @@ If `special_zero` is set to `true` index of `0` cannot be larger than the rank o
</layer>
```
*Example 4: reshape tensor - calculate first dim and preserve second dim*
```xml
<layer ... type="Reshape" ...>
<data special_zero="true"/>
@ -135,6 +139,7 @@ If `special_zero` is set to `true` index of `0` cannot be larger than the rank o
</layer>
```
*Example 5: reshape tensor - preserve first dim and calculate second dim*
```xml
<layer ... type="Reshape" ...>
<data special_zero="true"/>
@ -155,4 +160,4 @@ If `special_zero` is set to `true` index of `0` cannot be larger than the rank o
</port>
</output>
</layer>
```
```