Zillow is one of the largest real estate and rental marketplaces in the world, with a database of 100 million homes in the US. The company pioneered data-driven, automated home value estimates with the Zestimate score. On this episode, we speak with Zillow's Chief Analytics Officer and Chief Economist, Dr. Stan Humphries, to learn how Zillow uses data science and big data to make a variety of real estate predictions.