Deepak Agarwal is a statistician at Yahoo! who is interested in developing statistical and machine learning methods to enhance the performance of large scale recommender systems. Deepak and his collaborators significantly improved article recommendation on several Yahoo! websites, most notably on the Yahoo! front page (a 200+% improvement in click-rates). He also works closely with teams in computational advertising to deploy elaborate statistical models on the RightMedia Ad Exchange, yet another large scale recommender system. He currently serves as associate editor for the Journal of American Statistical Association (JASA) and IEEE Transaction on Knowledge discovery and Data Engineering (TKDE). He is also a program co-chair for KDD 2012.