Overview of Variational Inference

Frame reference:

https://blog.csdn.net/c9yv2cf9i06k2a9e/article/details/102735795

https://www.zhihu.com/question/31032863/answer/315311293

Some formula derivation:

https://blog.csdn.net/weixin_42431920/article/details/108291088

https://blog.csdn.net/weixin_40255337/article/details/83088786

https://blog.csdn.net/step_forward_ML/article/details/78077383