I know this is a very good company in China. While I go through the interview process, I feel so disappointed. First, I did an online test which is about some basic data analysis knowledge. Second, I had an interview with an employee of the company, the lady asked me some questions about machine learning models, she shocked me. She asked me logistic regression, what is the function of that? I said exp()/[1+exp()], the lady said, no, the right one should be 1/[1+exp()]. Excuse me? That is the same, just decide the upper and lower side by exp(). Then we talked about more advanced models, she asked me what is the function of the cross entropy or gini index? After I said my answer( I am pretty sure that I am correct), she said so you do not remember the function. Me:???!!!!