Professor of Computer Science, Oxford University

Professor of Electrical and Systems Engineering, University of Pennsylvania

Professor Computer Science, University of São Paulo

Retired Professor, Dept. of Math., Ruhr-University Bochum

University of Sydney

Researcher at CONACYT / CICESE-UT3

Reader in Computer Science, Royal Holloway, University of London

National Chengchi University, Taiwan

Associate Professor , Graphic Era Hill University

Independent Researcher