Hybrid Algorithms for Fuzzy Reverse Supply Chain Network Design

Table 7

Multiple comparison on convergence time.

	^CT𝜇PSO	^CT𝜇GA	^CT𝜇PSO-GA	^CT𝜇GA-SA
^CT𝜇GA	(−, −)
^CT𝜇PSO-GA	(+, +)	(+, +)
^CT𝜇GA-SA	(−, −)	(+, +)	(−, −)
^CT𝜇PSO-SA	(−, −)	(+, +)	(−, −)	(+, +)