Research Article

Two-Swim Operators in the Modified Bacterial Foraging Algorithm for the Optimal Synthesis of Four-Bar Mechanisms

Table 6

Statistical results obtained in 30 independent runs by MBFOA, IMBFOA, and TS-MBFOA when solving the three four-bar synthesis problems. Best results are remarked in boldface. All differences are significant based on the 95%-confidence Wilcoxon test.

Problem Stat MBFOA IMBFOA TS-MBFOA

01 Evaluations 500,000 500,000 500,000
Best
Average
Std.

02 Evaluations 100,000 100,000 100,000
Best 0.002997125 0.003726955 0.002628079
Average
Std.

03 Evaluations 500,000 500,000 500,000
Best 0.5630512 3.537282325 0.2750193
Average
Std.