计算机与现代化Issue(7)：1-5,5.DOI:10.3969/j.issn.1006-2475.2012.07.001
覆盖粗糙集上下近似的对偶性分析
Duality Analysis of Approximation Operations in Covering-based Rough Sets
摘要
Abstract
Covering-based rough set theory is an extension of the classical rough set theory. In a variety of definitions of approximations operations, duality is always the focus of debate. This paper analyses duality of approximation operations through the definable properties of positive region, negative region and boundary region. With duality, this paper shows how to choose approximation operations for different applications. This paper also investigates the duality of approximation operations in reduct covering. Finally, the paper analyzes two pairs of approximation operations satisfying the duality in covering-based rough sets.关键词
粗糙集/覆盖/对偶性/约简/上近似Key words
rough sets/ covering/ duality/ reduct/ upper approximation分类
信息技术与安全科学引用本文复制引用
陈文,刘绍清,郑若鹢,黄河清..覆盖粗糙集上下近似的对偶性分析[J].计算机与现代化,2012,(7):1-5,5.基金项目
福建省教育厅资助项目(JB11320) （JB11320）
