Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

http://nlp.seas.harvard.edu/2018/04/03/attention.html

https://blog.floydhub.com/the-transformer-in-pytorch/

http://jalammar.github.io/illustrated-transformer/

https://towardsdatascience.com/transformers-141e32e69591