Reviews of professor Xiaolong Yang

Rating: 1.0/5, difficulty: 5.0/5
Strongly recommend everyone not to take his course. Unnecessary heavy workload and you will not learn anything. If you have taken a introductory CS course in high school you are overqualified for this course. and he uses outdated softwares beware of that !

Rating: 3.0/5, difficulty: 3.0/5
He did taught something about big data, so for some students it is a good introductory course about data engineer. But the software system he gave was soooooo stupid and outdated. You have to use that system on your own PC and can not even rent remote server.

Rating: 1.0/5, difficulty: 4.0/5
Instead of showing students coding, just read the code invintage PowerPoint, even for a coding heavy class. Wired, strict&meaningless naming rules and instructions for homework that if you dont follow, prepare for points taken off. expect students to know everything even for a flippant comment. Leetcode SQL50 would be better.

Rating: 1.0/5, difficulty: 5.0/5
For the sake of your mental health, please don't take this man's class. I wouldn't even call him a professor. I honestly have no idea how is he even teaching this class and many other classes and being part of statistics faculty at Cornell. He reads off a slides that were made in 90s and doesn't know anything. He's the worlds worst prof. periodt