I got my Ph.D. in computer science, machine learning in 2011 and worked in the industry for 4 years. I have built a large-scale web analytics for my employer, which successfully attracted big clients like Walmart (Walmart purchased over 15,000 automated dispensing machines each worthing several thousand). I am now self-employed building websites for clients, including but not limited to https://www.createclassicsudoku.com and http://www.ocanewsonline.com and http://www.csltutor.com and many more. I also wrote a book about making puzzle game (Create Classic Sudoku: Make Your Own in Minutes). Also a relator in Great Akron/Cleveland area for Howard Hanna https://yalingzheng.howardhanna.com.
In my spare time, I teach Chinese. I like hiking with friends; cooking with my family (Spring Roll, Drunken Chicken, Kimchi etc); I love making things, getting to know people and be able to help them.