# [2019.01.23] EDA

I haven't done an exploratory data analysis for quite a while. The
project seems to be interesting. I even have a kind of déjà vu now
since there is a service not in a great need of a recommender system.
And the first question that we need to answer is how to involve
people in a type of activity new for them. Not how to retain --- that
would be too simple since it's a direct application of recommenders.
But first of all, how to involve. That, of course, can have a dead
simple answer: use the same techniques as in online advertising.
After all, promoting any new activity is very similar to showing
banners in a hope of growing conversion.