多准则模糊决策的区间值Vague集方法

Multicriteria decision-making based on interval-value Vague sets

区间值(i-v)模糊集合和Vague集是不精确知识表达的两种新理论。他们已被广泛地应用于决策系统中对不确定决策数据的描述。因此在Vague集基础上给出i-v Vague集的相关概念及性质,并将实数型Vague集群决策上的记分函数方法扩展到i-v Vague集上,提出新的记分函数,并用实例比较改进的记分函数与各种记分函数方法的优劣性。

Interval valued （i-v） fuzzy sets and vague sets are two new theories representing inexact knowledge.They have been widely applied to describe the uncertain data in decision systems.In this paper,the notions and properties of i-v vague sets are first introduced based on vague sets.Then,the score functions of real number vague sets group are extended to i-v vague sets and a new seore function is given.Finally,using example to compare all kinds of score functions with the new ones.