Analyzing Foursquare Check-Ins
Location-based services—especially on mobile phones—are growing dramatically. With an ever increasing number of GPS-enabled smartphones in use, location data is adding a whole new dimension of applications, including advertising, recommendations of nearby businesses, and weather. In this chapter, we will focus on some of the basic concepts related to geographical (geo) location. We also discuss the intricacies of handling multiple time zones. For this, we will use the Foursquare service as the base of our examples.