https://academy.yandex.ru/dataschool/book
https://education.yandex.ru/handbook/ml

https://ml-handbook.ru/
https://ml-handbook.ru/chapters/intro/intro
    http://www.machinelearning.ru/wiki/index.php?title=%D0%9C%D0%B0%D1%88%D0%B8%D0%BD%D0%BD%D0%BE%D0%B5_%D0%BE%D0%B1%D1%83%D1%87%D0%B5%D0%BD%D0%B8%D0%B5_%28%D0%BA%D1%83%D1%80%D1%81_%D0%BB%D0%B5%D0%BA%D1%86%D0%B8%D0%B9%2C_%D0%9A.%D0%92.%D0%92%D0%BE%D1%80%D0%BE%D0%BD%D1%86%D0%BE%D0%B2%29
    https://lena-voita.github.io/nlp_course.html
    https://github.com/lena-voita
    https://github.com/yandexdataschool/nlp_course

https://lena-voita.github.io/nlp_course/seq2seq_and_attention.html