Luis Gravano is a Professor of Computer Science at Columbia University. Luis joined Columbia in 1997. In 2001, Luis was a Senior Research Scientist at Google (on leave from Columbia). He received his Ph.D. degree in Computer Science from Stanford University in 1997. He also received an M.S. degree from Stanford in 1994 and a B.S. degree from the Escuela Superior Latinoamericana de Informática (ESLAI), Argentina, in 1991. His research interests are in databases, information retrieval, and web search. Luis is a recipient of an NSF CAREER award. He has received multiple best paper awards, including at the ACM SIGMOD 2006 and IEEE ICDE 2005 conferences.