Security Check Mutual Recognition between High-Speed Railway and Urban Rail Transit Based on Variable Fuzzy Set Theory

Table 1

Fuzzy mood operator, fuzzy scale, and relative membership degree relations.

Fuzzy mood operator	Fuzzy scale	Relative membership degree relations
Equally	0.50	1.0
	0.525	0.905
Slightly	0.55	0.818
	0.575	0.739
Somewhat	0.60	0.667
	0.625	0.60
Rather	0.65	0.538
	0.675	0.481
Obviously	0.70	0.429
	0.725	0.379
Remarkably	0.75	0.333
	0.775	0.290
Very	0.80	0.250
	0.825	0.212
Extra	0.85	0.176
	0.875	0.143
Exceedingly	0.90	0.111
	0.925	0.081
Extremely	0.95	0.053
	0.975	0.026
Incomparably	1.0	0
—	—	—