Ship Electric Propulsion Simulation System Reliability Evaluation Based on Improved D-S Expert Weight Calculation Method

Table 1

The scale method of 1~9.

Scale	Meaning
1	Two factors have the same importance
3	A factor relative to another factor a little important
5	A factor relative to another obvious important factors
7	A factor relative to another important factor strongly
9	A factor relative to another extremely important factor
	Median in two adjacent judgments
Reciprocal	Factors and are to judge ; the factors and compare judgment