Table 15 Statistical results for stepped cantilever beam problem using CI–SAPF, CI–SAPF–CBO and 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 CBO
Best 63,839.45 63,893.47 80,329.37
Mean 64,248.96 64,229.23 85,830.51
Worst 64,333.45 64,579.43 101,024.23
Std. Dev 175.29 207.14 6610.61
Avg. CPU time \((\mathrm{sec})\) 5.36 7.45 1.14
Avg. function evaluations 21,552 30,437 4448