https://www.quora.com/session/Joaquin-Quiñonero-Candela/1 "In core ML, we focus on researching and shipping large scale and realtime ML/AI algorithms for some of the biggest ML applications in the world. Whenever a users logs into Facebook, these models are used to rank news feed stories (1B users every day, 1.5K stories per user per day on average), ads, search results (1B+ queries a day), trending news, friend recommendations and even rank notifications that a user receives, or rank the comments on a post. "
1500 stories per user per day on average. ‎- псы в рапиде