Dr. Soups Ranjan is a Data Mining Engineer at Yelp where he's using Machine Learning to make local ads relevant. He has over a decade of experience in Computational Advertising and worked on Social Media ads, Mobile App Installs ads and most recently Local ads. He's worked on all aspects of advertising: RTB, 2nd price auctions, CTR prediction, click-fraud detection, etc. He obtained his PhD in Electrical and Computer Engineering from Rice University in 2005. He has co-­authored 18 USPTO patents and published 25 IEEE/ACM papers at KDD, SIGCOMM, SIGMETRICS and other venues.