Group items tagged

You can learn a lot about the world from Wikipedia, sometimes without reading the articles. Kalev Leetaru, a researcher at the University of Illinois, has been looking at the capacious volunteer-written encyclopedia as a Big Data resource, concentrating on the connections between cities around the globe over time. To understand these connections, he focuses on the type of language used to talk about a particular place, to see whether the writers have a generally positive or negative sentiment toward the place at that time.