Bo Long joined Yahoo! in Oct. 2008, and is currently a scientist in Yahoo! Labs, focusing on relevance and ranking. He obtained his Ph.D. in computer science from SUNY Binghamton 2008. His dissertation was in the field of machine learning and data mining with focus on unsupervised learning of relational data and graph data. Before joining Yahoo!, he interned at IBM Watson Center, Google Research, and Yahoo! Research.