Vague set method of multi-criteria fuzzy decision making
Lili Wei · Systems Engineering - Theory & Practice · 2010
The shortages of existed score function for the multi-criteria fuzzy decision making issue of the fuzzy environment are pointed.According to the size of the relationship between membership nonmembership of vague sets and the partition of the set that is composed of vague value,the new methods are provided.They are called score function method and weighted score function method.The weight of criteria is also denoted by vague set.This method provides a effective tool for decision-makers.