In this section, we apply the acquisition method described in Section 2.2.2. We first must note that the implementation of the ALC was more time consuming compared to that of the ALM as the integral in needs to be computed. The first, second, and third rows of Figure show 𝜎 avg 2 , 𝜎 max 2 , and OMSE as functions of the iteration number, respectively. In that figure, the results shown correspond to the use of the A-criterion for ALM and ALC. Corresponding plots for the D-and Ecriteria are shown in Figures and. We observed that most curves were discontinuous after 30 iterations, which was a consequence of the hyperparameter value update (see Section 2.2.2).