Machine Learning 강의노트 (박수진)
수학기호 정리
http://www.deeplearningbook.org/contents/notation.html
수학기호 마크다운
http://csrgxtu.github.io/2015/03/20/Writing-Mathematic-Fomulars-in-Markdown/
Sebastian Raschka 홈페이지
http://sebastianraschka.com/Articles/2014_about_feature_scaling.html
구글 GPU 이용해서 모델 학습시키기
https://medium.com/deep-learning-turkey/google-colab-free-gpu-tutorial-e113627b9f5d