- https://fanpu.io/cmu-online/
- https://www.andrew.cmu.edu/user/yuanzhil/cov.html
- https://www.andrew.cmu.edu/user/yuanzhil/
- https://web.stanford.edu/class/ee364a/
- https://www.stat.cmu.edu/~ryantibs/convexopt/#review
- http://faculty.bicmr.pku.edu.cn/~wenzw/opt-2020-fall.html
- http://faculty.bicmr.pku.edu.cn/~wenzw/optbook.html#lecture
- https://ee227c.github.io/