About the chanel-wise

[ZJJTSL]

i can't understand the chanel-wise implementation, file "sem_ch_graph_conv.py" and "sem_graph_conv.py", what's the difference between them. And i wonder the size of "W" in file "sem_ch_graph_conv.py" line 19, how to understand its first dimention of 2.
Looking forward your guidance ,thanks!

[garyzhao]

Hi @ZJJTSL ,

Thanks for your interest in our work!

"sem_graph_conv.py" is the implementation according to Eq. (2) in the main paper, while "sem_ch_graph_conv.py" is the channel-wise implementation according to Eq. (3). We use two weights for the node itself and its neighbors, respectively, so that's why the first dimension is two. For more details, please see https://arxiv.org/pdf/1904.03345.pdf Eq. (9) on page 12 (Section A.2.). Thanks!

Best,
Long