Question about cls token

[eremo2002]

Hi author! thanks for your nice work.

I have a question about cls token in PVT.

In ViT and DeiT, cls token is appended at input embedding process. But PVT append cls token at input of last stage.

Why PVT doesn't append cls token at input embedding process?

Thanks.

[IwantNewway]

Hi author! thanks for your nice work.

I have a question about cls token in PVT.

In ViT and DeiT, cls token is appended at input embedding process. But PVT append cls token at input of last stage.

Why PVT doesn't append cls token at input embedding process?

Thanks.

would u tell me placement where appended cls ?, i find here