joddiy commented on issue #700:
URL: https://github.com/apache/singa/issues/700#issuecomment-654043371
> Hi,
>
> Will work on RoiAlign. Also can GatherElements be implemented similar to
ScatterElements?
>
> Thanks and Regards,
> Shashank Nigam
Thanks @Shashankwer . I guess you can implement the ScatterElements firstly,
it's easy to follow the formula:
```
output[indices[i][j]][j] = updates[i][j] if axis = 0,
output[i][indices[i][j]] = updates[i][j] if axis = 1,
```
For more information, please check this link:
https://github.com/onnx/onnx/blob/master/docs/Operators.md#scatterelements
It's ok to implement this operator on NumPy array and then convert it to
SINGA Tensor.
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