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属性权重和属性值都是梯形模糊数的多属性决策问题是一种带有不确定性的决策,需要作不确定性分析后才能得出结论.为此把梯形模糊数表示的属性值和属性权重先用其特征函数“均值+偏差”联系数(特征联系数)表示,再利用联系数运算法则作“加权求和”运算,不仅获得与其它决策方法相同的结果,而且借助联系数中i的不同取值考察决策对象的排序变化,方法简便易行,且具有较强适用性.
Property weights and property values are both trapezoidal fuzzy numbers Multi-attribute decision making problem is a kind of decision with uncertainties, which needs to be analyzed after uncertainty analysis.For this reason, the attribute values and attributes represented by trapezoidal fuzzy numbers The weight is expressed by its characteristic function “mean + deviation ” (characteristic number of connection), and then the “number of weighted sum ” operation is used to calculate not only the same result as other decision methods, but also by means of The different values of i in the connection numbers examine the sorting changes of the decision objects. The method is simple and easy to use and has strong applicability.