23. Massive Intersection Queries select * from checkins where user in friends and venue in nearby select * from similarities where venue1 in myHistory and venue2 in nearby
32. The Anatomy of a Data Team Analytics (Stats) Science (ML) Engineering (CS) Mix of all of these!
33. Building a Data Team It’s hard Good references: http://radar.oreilly.com/2011/09/building-data-science-teams.html http://mathbabe.org/2011/09/25/why-and-how-to-hire-a-data-scientist-for-your-business/
34. Join us! foursquare is hiring www.foursquare.com/jobs Justin Moore @injust justin@foursquare.com