Statistical and probabilistic methods have frequently been used to model and analyze electromagnetic scattering problems. This approach may in some cases be the most realistic one. In others, when combined with deterministic methods, it allows to extract from the available data information that is otherwise difficult to obtain. The aim of this chapter is to provide an introduction to some statistically based approaches to the analysis of scattering problems, and to illustrate their efficiency and limitations. A general methodology of prediction of the behavior of a complex system can thus be established which, among many advantages, allows a significant reduction of the computational cost.
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