深度学习中的图卷积

参考:
https://zhuanlan.zhihu.com/p/54505069
https://blog.youkuaiyun.com/weixin_40013463/article/details/81089223
https://blog.youkuaiyun.com/qq_41727666/article/details/84622965#CNN_3
https://www.bilibili.com/video/av51204684?p=8