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Linguistic variables and corresponding TFNs for criteria influence degree.
| Linguistic variables of influence description | Triangular fuzzy number (TFN) |
|---|---|
| No influence (NI) | (0, 0, 0.25) |
| Very low influence (VL) | (0, 0.25, 0.5) |
| Low influence (L) | (0.25, 0.5, 0.75) |
| High influence (HL) | (0.5, 0.75, 1) |
| Very high influence (VH) | (0.75, 1, 1) |
