Research Article

Intelligent Warehouse Robot Scheduling System Using a Modified Nondominated Sorting Algorithm

Table 2

Experimental results of IGD on ZDTs (mean and standard deviation).

ProblemMNSGAIIIBEAMBNSGAII

ZDT124.7879e-3 (1.31e-4) -4.0901e-3 (1.01e-4) -3.9627e-3 (6.92e-5)
ZDT224.9504e-3 (2.24e-4) +8.4212e-3 (7.74e-4) -5.3033e-3 (1.32e-4)
ZDT325.4102e-3 (1.31e-4) -1.6020e-2 (8.05e-4) -5.0404e-3 (1.24e-4)
ZDT425.0667e-3 (4.10e-4) +2.2761e-2 (1.59e-2) -6.3474e-3 (2.30e-4)
ZDT525.1086e-1 (8.31e-2) +1.8513e+0 (4.39e-1)=1.6593e+0 (7.13e-1)
ZDT623.7200e-3 (1.20e-4)=4.4425e-3 (1.14e-4) -3.7006e-3 (5.32e-5)