计算机工程与应用2011，Vol.47Issue(10)：30-34,5.DOI:10.3778/j.issn.1002-8331.2011.10.009
集值映射下的覆盖粗糙集模型
Covering-based rough set model based on set-valued mapping.
摘要
Abstract
Covering-based rough set theory is a generalization of rough set theory. According to the objective relation,a covering on a universe is obtained and a new model of covering-based rough set is constructed through set-valued mapping. And then,the properties of this model are studied. The relationships between this model and the existing five models of covering-based rough set are compared as well. These works provide a new way to obtain a covering of the universe from a datasheet. And it also enriches the research method of coving-based rough set. At the same time, it proposes the concept of two-coverings and gets some interesting properties and conclusions of the interchange between two coverings.关键词
集值映射/覆盖粗糙集/双覆盖/双论域/映射Key words
set-valued mapping/ covering-based rough sets /two-covering/ two-universe /mapping分类
信息技术与安全科学引用本文复制引用
汤建国,佘堃,祝峰,李凯..集值映射下的覆盖粗糙集模型 [J].计算机工程与应用,2011,47(10):30-34,5.基金项目
国家自然科学基金(the National Natural Science Foundation of China under Grant No.60873077). （the National Natural Science Foundation of China under Grant No.60873077）
