An Improved Model of Variable Fuzzy Sets with Normal Membership Function for Crane Safety Evaluation

Table 8

Assessment results of port crane and comparison.

Weighting method	Evaluation method	Ranking feature value				Mean ranking feature value	level
		,	,	,	,
Subjective weigh; (AHP)	Ref. [31]						III
	IVFS	3.39	3.54	3.80	3.97	3.68	IV
	SPA-VFS	3.29	3.52	3.64	4.00	3.62	IV
	VFS	3.26	3.46	3.68	3.89	3.57	IV
Objective weigh; (entropy)	Ref. [31]						II
	IVFS	2.66	2.73	2.44	2.48	2.58	III
	SPA-VFS	2.66	2.77	2.46	3.13	2.75	III
	VFS	2.63	2.70	2.51	2.44	2.57	III