Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The fuzzy scale used in this research
| Lingual variable | Fuzzy scale |
|---|---|
| Equal importance | (1, 1, 1) |
| Very weak advantage | (0.5, 1, 1.5) |
| Weak advantage | (1, 1.5, 2) |
| Medium advantage | (1.5, 2, 2.5) |
| Strong advantage | (2, 2.5, 3) |
| Very strong advantage | (2.5, 3, 3.5) |
