Membership functions for uncertain concepts , ,
| Uncertain concept | Membership function (m.f.) | The type of m.f. | |
|---|---|---|---|
| Quantifier | Few | (0.05, 0.10, 0.25, 0.30) | Trapezoidal |
| Half | (0.30, 0.45, 0.55, 0.70) | Trapezoidal | |
| Most | (0.70, 0.75, 0.90, 0.95) | Trapezoidal | |
| Subject (ESG, E, S, G) | insufficient | (0, 20, 30) | Right ramp |
| moderate | (20, 25, 40, 55) | Trapezoidal | |
| good | (45, 50, 60, 70) | Trapezoidal | |
| high | (65, 75, 100) | Left ramp | |
| Predicate (ROA) | poor | (−100%, 0%, 1%) | Right ramp |
| low | (−0.5%, 1%, 3%, 5%) | Trapezoidal | |
| good | (4%, 5%, 8%, 10%) | Trapezoidal | |
| high | (8%, 10%, 100%) | Left ramp | |
| Uncertain concept | Membership function (m.f.) | The type of m.f. | |
|---|---|---|---|
| Quantifier | Few | (0.05, 0.10, 0.25, 0.30) | Trapezoidal |
| Half | (0.30, 0.45, 0.55, 0.70) | Trapezoidal | |
| Most | (0.70, 0.75, 0.90, 0.95) | Trapezoidal | |
| Subject | insufficient | (0, 20, 30) | Right ramp |
| moderate | (20, 25, 40, 55) | Trapezoidal | |
| good | (45, 50, 60, 70) | Trapezoidal | |
| high | (65, 75, 100) | Left ramp | |
| Predicate | poor | (−100%, 0%, 1%) | Right ramp |
| low | (−0.5%, 1%, 3%, 5%) | Trapezoidal | |
| good | (4%, 5%, 8%, 10%) | Trapezoidal | |
| high | (8%, 10%, 100%) | Left ramp | |
Source(s): Own elaboration
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