Table 13 Statistical results for 72-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 372.41 380.18 372.41 379.06
Mean 381.53 383.24 398.08 387.81
Worst 384.63 385.96 418.90 397.39
Std. Dev 3.25 1.69 11.89 5.43
Avg. CPU time \((\rm sec)\) 78.61 118.52 53.88 80.39
Avg. Function evaluations 85,500 124,080 85,872 91,872
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