The goal of the Reliability, Optimisation and Uncertainties Labex DEFI Team is to study the interplay between recent uncertainty models and the optimisation of system reliabilities.
In the past decades, uncertainty theories and representations incompleteness (i.e., modelled by intervals) and variability (i.e., modelled by a probability distribution) have progressed to a maturity level allowing them to be applied to more and more complex problems. On the other hand, both the reliability and optimisation domains acknowledge the needs to model both aspects of uncertainty. As these three fields are essential tools to deal with systems of systems (both to ensure their efficiency and robustness), the aim of this projects is to deepen the foundational links between them, and to apply the obtained results to systems of systems. In particular, the following lines of research will be followed :