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A. Biographies, D. Jacquemart-tomi, and . Ph, D student in applied mathematics at ONERA and INRIA. He obtained agrégation in mathematics, in 2010. Then, he graduated from the University of Marseille, France with a Research Masters Degree in Probability and Statistics His research interests include rare event estimation with aerospace applications, 2011.

F. Le, directeur de recherche) at INRIA Rennes since 1993, where he is the head of the ASPI research team. He graduated from Ecole Centrale Paris in 1978 and obtained a Ph.D. in applied mathematics from université Paris Dauphine in 1981. His main research theme is the application of interacting particle systems to Bayesian estimation, to rare event estimation and to global optimization. His email address is francois

J. Morio and R. Engineer, He graduated from Ecole Nationale Supérieure de Physique de Marseille, France His main research interests include rare event estimations, sensitivity analysis and uncertainty propagation, Ph.D. in physics from, 2007.