should be “deg_inv[col].view(-1, 1) * x_j” ，The inverse of the node's degree multiplied by the neighbor vector

[moguizhizi]

https://github.com/malllabiisc/CaRE/blob/8d6f0b93301a55f1db517acce2708102d73fb3e7/CaRe(B%3DConvE)/cn_variants.py#L29