Predicting gang violence with networks

Chicago is famous for three things: art, architecture, and gang violence. The Chicago Police Department is trying all sorts things to get rid of that third claim to fame. One idea that they have been working with is “Predictive Policing”, read more about it in this article.
Congested Roads

Traffic jams are one of the biggest inconveniences in modern time. They lead to stressful situations for commuters, and cause huge economical and environmental damage. How could mathematics help?
Mapping militants with networks

A group of researchers at Stanford University took the many narratives of some of the biggest players in recent conflicts, and turned those into networks of time-lines.