Dr. Fuchun Peng joined Yahoo in January 2006, and is currently a Senior Scientist and Manager in Yahoo Search. Prior to Yahoo, he was a Research Scientist in BBN Technologies in Cambridge, MA, and a Postdoc at UMass Amherst, and he obtained his Ph.D. in computer science from the University of Waterloo, Canada, in 2003. His research interests include natural language processing, information retrieval, and machine learning.