Table 8: Results of Wilcoxon test for the MEs obtained using the proposed RGA-PSO and AIA-PSO methods for 14 UGO problems.

TP numberFunction nameRGA-PSO versus AIA-PSO
P value

1SHCB**
2GP**
3ES**
4B2**
5DJ**
6Booth**
7RC**
8RA**
9RS2**
10RS50.833
11SH**
12ZA2**
13ZA5**
14ZA10**