“…Concerning the mathematical statistics, one can refer to [40,49] and to [15,59,55,39] for the general principles on the statistical inverse problems. Early works on the statistical inverse identification of stochastic fields for random elastic media, using partial and limited experimental data, have primarily be devoted to the identification of the hyperparameters of prior stochastic models (such as the spatial correlation scales and the level of statistical fluctuations) [19,20,1,18,17,29], and then, methodologies have recently been proposed for the identification of general stochastic representations of random fields in high stochastic dimension [52,53,44,43]. Those probabilistic/statistical methods are able to solve the statistical inverse problems related to the identification of prior stochastic models for the apparent elastic fields at mesoscale.…”