Table 5.

Best fit 3-D-CLB parameters at 99th iterations of the genetic algorithm.

Nodule heterogeneity	$K_{\text{density}}$	$N_{\text{mean}}$	${\sigma }_x$	${\sigma }_y$	${\sigma }_z$	$\alpha$	$B$	$L_x$	$L_y$	$L_z$
Category 2	$9.2\times {10}^{-3}$	14	4	3	5	1.2	1.1	5	4	1
Category 3	$9.9\times {10}^{-3}$	18	3	4	4	1	1	4	1	3