李宏毅机器学习课程从入门到放弃（一）

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先加备忘：
Ref:
[1] https://blog.csdn.net/soulmeetliang/article/details/77461607
[2] https://www.youtube.com/channel/UC2ggjtuuWvxrHHHiaDH1dlQ/playlists
[3] https://github.com/GitYCC/NTU_HYLee_MachineLearning_Homework
[4] http://speech.ee.ntu.edu.tw/~tlkagk/courses_MLDS18.html