https://tensorflow.blog/%ED%85%90%EC%84%9C%ED%94%8C%EB%A1%9C-%EC%B2%AB%EA%B1%B8%EC%9D%8C/
https://github.com/rickiepark/first-steps-with-tensorflow
https://nbviewer.jupyter.org/gist/SDRLurker/c552ddfdf4df4df72dc652e0834b45d3
https://nbviewer.jupyter.org/gist/SDRLurker/331bd25d683c0190e04467bea2a5a9e2
https://nbviewer.jupyter.org/gist/SDRLurker/87303091f6d9ef0ea737f1c10218d92a
http://nbviewer.jupyter.org/gist/SDRLurker/1e1ad1d5ea5c96bad11535df7a366e28
http://nbviewer.jupyter.org/gist/SDRLurker/cde9cc2ad540d7f593617706dc851677
http://nbviewer.jupyter.org/gist/SDRLurker/968a240e2f70ef41ea8430c1fa331c0c
http://nbviewer.jupyter.org/gist/SDRLurker/77afa08ed3d27015a300e6e26625a931
http://nbviewer.jupyter.org/gist/SDRLurker/311bb8626958873666e0078cabc47e52
http://nbviewer.jupyter.org/gist/SDRLurker/7b1d13174950c27cd26b6906348fd784