Table 2: Comparisons of BOHGAS, HGAS, BOHGATD, and HGATD in terms of mean of the number of evaluations under the eight settings of GA operators for the Schwefel's function in 20 dimensions by stopping rule 1.

8 settings of GA operators Mean (evaluation)
Replacement Crossover Mutation BOHGASHGASBOHGATDHGATD

Ranking
4
0.05 13595 471668 26792 31243
0.06 15049 471251 26972 31590
8
0.05 13230 518101 20588 28070
0.06 13792 546366 20207 29972

Tournament
4
0.05 28631 1059412 47893 132294
0.06 37991 1404750 94763 281186
8
0.05 37792 1408634 74805 221730
0.06 57270 1824465 214563 815384

Overall average 27169 963081 65823 196434