Table III.

Linguistic Expressions and Equivalent Triangular Fuzzy Numbers (Wang, Liu, Fan, & Feng, 2009)

Linguistic judgment	Fuzzy number
Approximately equal	$1/2,1,2$
Approximately x times more significant	$x-1,x,x+1$
Approximately x times less significant	$\frac{1}{x-1},\frac{1}{x},\frac{1}{x+1}$
Between y and z times more significant	$y,\frac{y+z}{2},\mathrm{z}$
Between y and z times less significant	$\frac{1}{z},\frac{2}{y+z},\frac{1}{y}$