At foursquare, we believe there is a huge opportunity to apply machine learning algorithms to the collective movement patterns of millions of people and build new services which help people better understand and connect with places. Foursquare is now aware of 25 million places worldwide, each of which can be described by unique signals about who is coming to these places, when, and for how long. We employ a variety of machine learning algorithms at foursquare to distill these signals into useful data for our app and our platform. In the slides below, we talk briefly about the data at foursquare and some interesting applications of machine learning. Enjoy!