Hello,
Your implementation uses the Micro-block as: BN-Act-Conv2d.
However, the ResNeXt uses the micro-block structure: Conv2d-BN-Act.
So between the two implementations, the Conv2d is missing at the first block.
Reading your paper, if I understand correctly, the implementation should follow the ResNeXt style
, such as implemented by Titu1994
Can you help to clarify the difference (if any)? Thanks for your help.