Arvid Naess has been a professor of structural engineering since 1987 and of mathematical statistics since 2001 at the Norwegian University of Science and Technology. Professor Naess has worked on a wide range of problems related to stochastic dynamics of structures and structural safety and reliability. He has published more than 250 scientific papers and lectured at conferences and universities worldwide. He is the associate editor of several international engineering journals. He is a recipient of the Alfred M. Freudenthal Medal from ASCE and is an elected Fellow of the ASME and ASCE. Torgeir Moan has been a professor of marine structures at the Norwegian University of Science and Technology since 1977. He was the first Keppel Professor at the National University of Singapore (2002–2007). Professor Moan's work focuses on structural analysis and design of marine structures, with an emphasis on structural risk and reliability analysis; as well as probabilistic analysis of wave- and wind-induced stochastic dynamic load effects. He is an editor of the Journal of Marine Structures and serves on the boards of several other journals. Professor Moan has received various awards for his research, including the Statoil and the ASME James W. Rice Awards. He is an elected Fellow of ASCE, IABSE and The Offshore Energy Center Hall of Fame.