# [2018.10.14] Quiet Day I felt much better today and tried not only to do some household chores but also to prepare another version of a talk I will give in the beginning of the next year in Kiev. The talk is based on my experience of evaluation recommender systems working in production environment and how it differs from evaluation of the same ML models when you're doing research. I decided not to sit a final test of my massage learning course because I still have no idea about how the theory given to us was related to practical skills I acquired. My skills were only assessed by several other students and my wife but nobody told me that my massage was bad or inefficient yet. And I know one good way to develop it, namely having some practice in the near future:)