Walid G. Aref

Professor of Computer Science

Joined department: 1999
BSc, Alexandria University, Egypt, Computer Science (1983)
MSc, Alexandria University, Egypt, Computer Science (1986)
PhD, University of Maryland at College Park, Computer Science (1993)

Walid G. Aref is a professor of computer science at Purdue. His research interests are in extending the functionality of database systems in support of emerging applications, e.g., spatial, spatio-temporal, multimedia, biological, and sensor databases. He is also interested in query processing, indexing, data streaming, and geographic information systems (GIS). Walid's research has been supported by the National Science Foundation, the National Institute of Health, Purdue Research Foundation, Qatar National Research Foundation, CERIAS, Panasonic, and Microsoft Corp. In 2001, he received the CAREER Award from the National Science Foundation and in 2004, he received a Purdue University Faculty Scholar award. Walid is a member of Purdue's CERIAS. He is an associate editor of the ACM Transactions of Database Systems (ACM TODS) and the ACM Transactions of Spatial Algorithms and Systems (ACM TSAS), and has been an editor of the VLDB Journal. Walid has won several best paper awards including the 2016 VLDB ten-year best paper award. He is a senior member of the IEEE, and a member of the ACM. Walid is an executive committee member and the past chair of the ACM Special Interest Group on Spatial Information (SIGSPATIAL).

Selected Publications

M.S. Hassan, W.G. Aref, A.M. Aly: Graph Indexing for Shortest-Path Finding over Dynamic Sub-Graphs. ACM SIGMOD Conference, pp. 1183-1197 (2016).

A.M. Aly, A.R. Mahmood, M.S. Hassan, W.G. Aref, M. Ouzzani, H. Elmeleegy, T. Qadah: AQWA: Adaptive Query-Workload-Aware Partitioning of Big Spatial Data. PVLDB 8(13): 2062-2073 (2015).

A.M. Aly, W.G. Aref, M. Ouzzani: Spatial queries with k-nearest-neighbor and relational predicates. ACM SIGSPATIAL, pp. 28:1-28:10 (2015).

Y.N. Silva, W.G. Aref, P. Larson, S. Pearson, M.H. Ali: Similarity queries: their conceptual evaluation, transformations, and processing. VLDB J. 22(3): 395-420 (2013).

L.-V. Nguyen-Dinh, W.G. Aref, M.F. Mokbel, "Spatio-Temporal Access Methods: Part 2 (2003 - 2010)", IEEE Data Engineering Bulletin,, Vol. 33, No. 2, pp. 46-55 (2010).