Figure 6

Sampling efficiency of the single and tangent spherical shells test cases. Panel and inset (a): Number of sampled parameters before convergence as a function of the dimension of the parameter space for the single spherical shell test case. The main panel and the inset show linear and logarithmic scales, respectively. Panel (b): Proportion of sampled viable volume before convergence for the single spherical shell test case. Panel and inset (c): Number of sampled parameters before convergence as a function of the dimension of the parameter space for the two tangent spherical shells test case. The main panel and the inset show linear and logarithmic scales, respectively. Panel (d): Proportion of identified viable volume before convergence for the two tangent spherical shells test case. Red, blue, magenta, green, and black circles represent the results obtained by OEAMC, MEBS, the combination of OEAMC and MEBS, the Hafner's method [20], and uniform samplings over the whole parameter space, respectively.