隶属函数确定方法模糊决策测度及改善

Further study on the determination of membership function

隶属函数的确定以往主要侧重于对信息自身模糊性的识别和描述,忽视对描述主体的心理测度,存在着不重视主体认识水平的缺陷。本文通过对隶属函数度量方法的分析,来测量人们决策时心理测度上的模糊性,对具体不同情况给出描述函数及改善,可在一定程度上更准确地反映决策心理测度的模糊性,使决策更趋合理性。

The determination of membership function should not only describe the fuzziness of the information, but also correctly describe psychological measure of main body and take the limitation of cognition ability into account. In this paper, the simple and feasible methods of measuring membership function are presented. These methods are used to measure the fuzziness of psychological measurement when human being is making decision. The description function is presented according to the condition. These methods can describe fuzzy information more exactly and make decision more rationally.