This organization is mainly some course codes written by Ruopeng Gao during the studying in Nanjing University. Most of them are coursework for Computer Science courses during the undergraduate period.
When you cannot understand the design of some experiments, you can refer to the existing code to understand. But DO NOT just copy other people's (include this organization's) code.
If you are a course teacher and think that it is inappropriate to open source the code of your course, please contact me. 