Regents' Professor, Georgia Institute of Technology

Carleton University, Department of Systems and Computer Engineering, Ottawa, Canada

Professor, University of Exeter Business School, University of Exeter

Associate Professor, University of Amsterdam

Professor at University of Central Florida

Full Professor, HDR, IMT - Ecole des Mines d'Alès

University of Salerno

Georgia Tech Research Institute

Kent State University

Profesor of Computer Science, University of Zaragoza