Fig. 5

Current (ith iteration) EM-evaluated dataset {x_T^(i.j)}: small circles mark N_T samples and large circles indicate the Pareto non-dominated solutions selected therefrom, with [F_1.j⁽ⁱ⁾ F_2.j⁽ⁱ⁾], j = 1, …, K_i, where K_i is the number of non-dominated points, being the corresponding set of design objectives.