An Improved PSO Algorithm for Optimized Material Scheduling in Emergency Relief

Table 8

Wilcoxon signed ranks test results.

Algorithm			value
GP-APSO vs. PSO	402	63	0.027627	Yes	Yes
GP-APSO vs. APSO	370	95	0.092663	No	Yes
GP-APSO vs. GP-PSO	386	79	0.079244	No	Yes
GP-APSO vs. DE	392	73	0.036532	Yes	Yes
GP-APSO vs. JADE	408	57	0.001729	Yes	Yes
GP-APSO vs. GA	411	54	0.006782	Yes	Yes

annotation: the symbol “R+” means the sum of ranks for the problems in which the first algorithm outperformed the second, and the “R−” means the sum of ranks for the opposite.