Yinfeng Qin is an M.S. student in Electrical Engineering at Stanford University. He worked at The Bill Lane Center for the American West as a research assistant in building software for data collection, data processing and designing visualizations. Before Stanford, Yinfeng received B.S. in Electronics Engineering from Tsinghua University with an emphasis on pattern recognition and machine learning. He also has relevant experiences with NetEase, Microsoft Research Asia and Amazon.com, and will start as an engineer at Google in summer 2011.