Table 2.

Weight of different scales.

No	Scale	Value	Weight (Wm)
1	Linear (Saaty, 1977)	Vm = (Np + 1 − m)	Wm = Vm/V1
2	Logarithmic	Vm = $lo{g}_2^{\left(N_p+1-m+1\right)}$	Wm = Vm/V1
3	Root Square (Harker and Vargas, 1987)	Vm = $\sqrt[2]{N_p+1-m}$	Wm = Vm/V1
4	Inverse Linear (Ma and Zheng, 1991)	Np/m	Wm = Vm/V1
5	Power (Harker and Vargas, 1987)	Vm = (Np + 1 − m)2	Wm = Vm/V1
6	Geometric (Lootsma, 1989)	Vm = $2^{(N_p-m)}$	Wm = Vm/V1
7	Rank-Order Centroid (ROC)	Vm = $\frac{1}{N_p}{{\displaystyle \sum }}_{k=m}^{N_p}\frac{1}{k}$	Wm = Vm/V1
8	Gaussian Function	Vm = $e^{(-\frac{{\left(m-1\right)}^2}{c})}$ c = −(Np − 1)2/ln(1/(Nt − 1))	Wm = Vm