Table 4 Statistical results for 10-bar case 1 and 2 using CI–SAPF and CI–SAPF–CBO

From: Cohort intelligence with self-adaptive penalty function approach hybridized with colliding bodies optimization algorithm for discrete and mixed variable constrained problems

Results CI–SAPF CI–SAPF–CBO
Case 1 Case 2 Case 1 Case 2
Best 5490.60 5061.76 5490.60 5061.76
Mean 5505.75 5062.22 5505.71 5061.81
Worst 5534.96 5067.33 5532.85 5062.12
Std. Dev 16.65 1.54 14.09 0.13
Avg. CPU time \((\mathrm{sec})\) 10.64 12.70 10.80 33.42
Avg. function evaluations 22,654 22,874 16,845 24,325