ACM Fellow; IEEE Fellow; Director of Digital Library Research Laboratory (DLRL) at Virginia Tech; Professor of Department of Computer Science at Virginia Tech

ACM Fellow; Fellow of the American Physical Society; Professor in the Biocomplexity Institute & Initiative and Computer Science Department at the University of Virginia; Recipient of the 2019 ACM-IEEE CS Ken Kennedy Award, and the 2019 HPDC (High-Performance Parallel and Distributed Computing) Achievement Award.

AAAI Fellow; IEEE Fellow; Fellow of the Engineering Institute of Canada; Distinguished Professor of Urban System Engineering at the University of Toronto; Professor of Industrial Engineering and Computer Science; Associate Director for Research, School of Cities; Head, Enterprise Integration Laboratory