George Kollios is a Professor in the  Computer Science Department at Boston University in Boston, Massachusetts. He received his Diploma in Electrical and Computer Engineering in 1995 from the National Technical University of AthensGreece; and the M.Sc.  and Ph.D. degree in Computer Science from Polytechnic University, New York in  1998 and 2000 respectively. His research interests include temporal and spatio-temporal indexing, data mining, database security, multimedia indexing, and approximation algorithms for large scale data management problems. His research has been supported by NSF, including an NSF CAREER Award, and IARPA. He is a member of ACM and IEEE Computer Society.