Hybrid Metaheuristics for Solving a Fuzzy Single Batch-Processing Machine Scheduling Problem

Table 2

Factors and their levels.

SA, VNS and VNS-SA				GA and GA-VNS
Parameters	SA levels	VNS levels	VNS-SA levels	Parameters	GA levels	GA-VNS levels
𝑇0	A(1)—300	—	A(1)—200	popsize	A(1)—45	A(1)—30
	A(2)—350	—	A(2)—250		A(2)—50	A(2)—35
	A(3)—400	—	A(3)—300		A(3)—60	A(3)—40
n max	B(1)—600	A(1)—400	B(1)—400	𝑝𝑐	B(1)—80%	B(1)—80%
	B(2)—650	A(2)—450	B(2)—450		B(2)—85%	B(2)—85%
	B(3)—700	A(3)—500	B(3)—500		B(3)—90%	B(3)—90%
α	C(1)—0.91	—	C(1)—0.89	𝑝𝑚	C(1)—0.1	C(1)—0.1
	C(2)—0.92	—	C(2)—0.9		C(2)—0.15	C(2)—0.15
	C(3)—0.93	—	C(3)—0.91		C(3)—0.2	C(3)—0.2
				n max		D(1)—300
						D(2)—350
						D(3)—400