摘要
分析了传统的基于随机集的粗糙上(下)近似在刻画或近似概念时的缺陷。考虑到元素的集值函数与对象集重叠部分的定量信息。依据集值函数与对象集重叠的多少来刻画或近似对象集。给出了基于随机集的程度粗糙集模型,得出了一系列重要的结论。
In this paper,the limitation of traditional upper（lower） approximation based on random set is analyzed,when it characterizes or approximates the conception.The overlapped part＇s quantitative information of elementary set-valued function and object set is taken into account;the numbers of overlapping are used to characterize or approximate object set.At the same time,degree rough set model based on random set is provided,and a series of important conclusions are also given.
出处
《淮阴工学院学报》
CAS
2010年第1期14-16,共3页
Journal of Huaiyin Institute of Technology
关键词
系统理论
粗糙集
随机集
程度
system theory
rough set
random set
degree
