Ahmed R MahmoodAhmed R. Mahmood is a Ph.D. candidate at the Department of Computer Science, Purdue University. His research interests are big data, database systems, spatial, spatial-keyword, and distributed stream processing. He is the first-place winner of the 207 ACM SIGSPATIAL student research competition. He has been awarded the Purdue CS Teaching Fellowship, the Teaching Academy Graduate Teaching Award, and the Raymond Boyce Graduate Teacher Award. Ahmed is the main designer and developer of Tornado, the first distributed spatial-keyword stream processing system. He published several scholarly articles in the area of spatial and spatial-keyword processing in top venues including ACM SIGSPATIAL, ICDE, and VLDB. Read More Read Less