Table 20 Statistical results for reinforced concrete 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 359.21 359.21 362.63
Mean 359.24 359.32 379.02
Worst 359.47 359.95 386.40
Std. Dev 0.08 0.18 9.35
Avg. CPU time \((\rm sec)\) 0.73 0.47 0.03
Avg. function evaluations 3047 2255 182