Combining Users’ Cognition Noise with Interactive Genetic Algorithms and Trapezoidal Fuzzy Numbers for Product Color Design

Table 1

Semantic terms and the corresponding fuzzy numbers for Kansei attribute.

Semantic label	Semantic terms (perceived preference)	Trapezoidal fuzzy number
VL	Very low Kansei preference	(0, 0, 0.1, 0.2)
L	Low Kansei preference	(0.1, 0.2, 0.2, 0.3)
ML	Moderately low Kansei preference	(0.2, 0.3, 0.4, 0.5)
M	Medium Kansei preference	(0.4, 0.5, 0.5, 0.6)
MH	Moderately high Kansei preference	(0.5, 0.6, 0.7, 0.8)
H	High Kansei preference	(0.7, 0.8, 0.8, 0.9)
VH	Very high Kansei preference	(0.8, 0.9, 1, 1)