Professor Ayyub is engaged in research activities focused on uncertainty modeling and analysis, systems modeling, decision analysis, homeland security, various defense and infrastructure systems, safety systems, and mathematical modeling using statistics, probability theory, fuzzy sets, and the theory of evidence. He is a fellow of ASCE, ASME, and SNAME; a recipient of the ASNE 'Jimmie' Hamilton Award for the best paper in the Naval Engineers Journal during 1985, 1992, 2000 and 2002; the award for the outstanding research oriented paper in the ASCE Journal of Water Resources Planning and Management in 1987; and the ASCE Edmund Friedman Young Engineer Award for Professional Achievement, 1989; the North American Fuzzy Information Processing Society's K. S. Fu Award for Distinguished Service 1995; the ASCE Walter L. Huber Research Prize, 1997; and several leadership and distinguished service awards. He is the founder and co-chairman of the International Symposia on Uncertainty Modeling and Analysis held in 1990, 1993, 1995, and 2003. Dr. Ayyub is the author and co-author of about 450 publications including many edited books and textbooks.
Reliability and risk analysis, forensic engineering, uncertainty modeling and analysis, decision methods, infrastructure systems, sea level rise.