Lotfi Tadj is Professor of Decision Sciences at the Department of Management and E-Business at the American University in Dubai (United Arab Emirates). He holds a BSc in Mathematics from the University of Algiers (Algeria), where he was also lecturer, an MSc in Applied Mathematics from Carnegie-Mellon University (USA) and a PhD in Operations Research from the Florida Institute of Technology (USA), where he was Research Assistant and then Adjunct Professor.
M.-Salah Ouali is Associate Professor at the Department of Mathematical and Industrial Engineering in the École Polytechnique de Montreal (Canada). He received his doctorate from the Institut Nationale Polytechnique de Grenoble (France). M.-Salah Ouali has also worked at the École Nationale des Science Appliquées de Strasbourg (France), Université Laval (Canada), the École Nationale d'Ingénieurs de Metz (France) and the École Nationale d'Ingénieurs de Tunis (Tunisia).
