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Paper here: https://arxiv.org/abs/2011.02100
TF implementation here: https://github.com/JimLiu96/DeosciRec
The algorithm is pretty similar to LightGCN so there wasn't too much to do. The paper claims an improvement over LightGCN, which I'm not seeing. So, there might be a mistake somewhere in my implementation.
Named DeosGCF because DGCF is already taken.