Table 3.

SF-AHP linguistic terms used for pairwise comparisons.

Linguistics terms	Symbol	Fuzzy number $(\mu ,v,\pi )$	Score index (SI)
Absolutely more importance	AMI	(0.9, 0.1, 0.0)	9
Very high importance	VHI	(0.8, 0.2, 0.1)	7
High importance	HI	(0.7, 0.3, 0.2)	5
Slightly more importance	SMI	(0.6, 0.4, 0.3)	3
Equally importance	EI	(0.5, 0.4, 0.4)	1
Slightly low importance	SLI	(0.4, 0.6, 0.3)	1/3
Low importance	LI	(0.3, 0.7, 0.2)	1/5
Very low importance	VLI	(0.2, 0.8, 0.1)	1/7
Absolutely low importance	ALI	(0.1, 0.9, 0.0)	1/9