集合的特征函数 meaning in Chinese

characteristic function of a set

Rs theory was proposed by pawlak in 1982 . the focus of rs theory is on the ambiguity caused by limited discernibility of objects in domain of discourse . fuzzy set theory was proposed by zadeh in 1965 and hinges on the notion of a membership function on the domain of discourse , assigning to each object a grade of belongingness in order to represent an imprecise concept . the combination of fuzzy sets and rough sets are a new study and is very value in fact
粗糙集理论是波兰数学家z . pawlak于1982年提出来的两种处理不确定和不精确数据的理论,是通过等价关系来研究对象之间的不可分辨关系;模糊集理论是美国控制论专家zadeh于1965年提出的一种处理非精确的现象的数学工具,是利用集合的特征函数来处理边界的不可定义性,在模糊集合中并没有应用对象之间不可分辨性的概念。