TEF Data Challenge 2017, a Datathon by Telefónica

A Datathon is like a Hackathon where data scientists & software engineers work and compete in teams on a data and visualization challenge. Here's a teaser of the challenge you and you teammates will have to solve, using real-world data from Telefónica's mobile network in Germany: "To improve customer experience and reduce costs, participants in teams of four will build a model that can predict and prevent potential network outages before they even occur. The model should be accompanied by a creative data visualization that conveys valuable insights." www.tefdatachallenge.com