Julia 1.0 Programming Complete Reference Guide

Explicit and implicit ratings

When looking for personalization features, we must take into account both explicit data that's willingly provided by the user, as well as relevant information that's generated by their behavior in the app or on the website (or anywhere else where we're tracking user behavior really, since the boundary between the online and physical realms is becoming more blurry, for example, with the introduction of smart cars and autonomous shop checkouts, to name just a few). The explicit rating includes actions such as grading a product or an experience, awarding stars to a movie or purchase, and retweeting or liking a post. On the other hand, not bouncing back to the search results page, sharing a song, or watching a video ...