Table 5.

The best overall CCO results before postprocessing are achieved for a radius exponent λ = 2.0 in the cost function (12).

Cost exponent λ	1.4	1.6	1.8	2.0	2.2	2.4	2.6
Radius average	0.442	0.428	0.393	0.322	0.333	0.407	0.332
Length average	0.348	0.387	0.460	0.860	0.489	0.405	0.342
Angle average	0.852	0.820	0.748	0.554	0.429	0.498	0.469
Total average	0.560	0.559	0.549	0.603	0.425	0.440	0.386