Question about the spatial-wise RSC

[YijinHuang]

I am confused about the spatial-wise RSC. If you apply average pooling to z (final feature map) and feed in the fully connected layer, I believe that for any channel of z, all values in that channel will be the same. Therefore, after an average pooling along channel dimension, all cells in the 7*7 weighting matrix will have the same value too. So, how do you select top p percentage? Did I miss something? Thank you.

[Justinhzy]

Hi, you are right. For alexnet, z is diretly used to guide muting. For resnet, downsampled middle layer spatial gradients are used to guide muting for z. Now I have seperated the code for alexnet and resnet respectively. Hope it helps.

[YijinHuang]

Hi, you are right. For alexnet, z is diretly used to guide muting. For resnet, downsampled middle layer spatial gradients are used to guide muting for z. Now I have seperated the code for alexnet and resnet respectively. Hope it helps.

Got it. Thank you.