Research Article

Digital Twin Driven Green Performance Evaluation Methodology of Intelligent Manufacturing: Hybrid Model Based on Fuzzy Rough-Sets AHP, Multistage Weight Synthesis, and PROMETHEE II

Table 1

The trapezoid fuzzy number values of nine-level scales.

Nine-level scaleTrapezoid fuzzy number value

EI(0.1111, 0.1111, 0.1765, 0.2500)
SI(0.1111, 0.1765, 0.3333, 0.4286)
OI(0.2500, 0.3333, 0.5385, 0.6667)
WI(0.4286, 0.5385, 0.8182, 1.0000)
E(1.0000, 1.0000, 1.0000, 1.0000)
WS(1.0000, 1.2222, 1.8571, 2.3333)
OS(1.5000, 1.8571, 3.0000, 4.0000)
SS(2.3333, 3.0000, 5.6667, 9.0000)
ES(4.0000, 5.6667, 9.0000, 9.0000)