Table 4: Comparative results of all the compared algorithms on the DTLZ test problems regarding IGD.

ProblemsAlgorithms
MOEA/D-DEMOEA/D-DRAMOEA/D-FRRMABMOEA/D-STMMOEA/D-UCB-TMOEA/D-ARGMOEA/D-LSIAS

DTLZ1
 Mean
 IQR
 Rank7264531
DTLZ2
 Mean
 IQR
 Rank2375614
DTLZ3
 Mean
 IQR
 Rank7653421
DTLZ4
 Mean
 IQR
 Rank7641352
DTLZ5
 Mean
 IQR
 Rank6742≈531
DTLZ6
 Mean
 IQR
 Rank7635241
DTLZ7
 Mean
 IQR
 Rank6741523

Rank Sum42373321302013

+/−/≈1/6/01/6/00/7/02/4/10/7/02/5/0

“+,” “−,” and “≈,” respectively, indicate the result of the algorithm is better than, worse than, and similar to that of MOEA/D-LSIAS based on the Wilcoxon’s rank sum test with a significance .