https://github.com/tkipf/gcn
https://towardsdatascience.com/understanding-graph-convolutional-networks-for-node-classification-a2bfdb7aba7b
https://www.experoinc.com/post/node-classification-by-graph-convolutional-network
https://www.cnblogs.com/wangxiaocvpr/p/8299336.html
https://stellargraph.readthedocs.io/en/stable/demos/node-classification/gcn-node-classification.html
https://tkipf.github.io/graph-convolutional-networks/
https://towardsdatascience.com/how-to-do-deep-learning-on-graphs-with-graph-convolutional-networks-62acf5b143d0
https://docs.dgl.ai/en/0.4.x/tutorials/models/1_gnn/6_line_graph.html