基于覆盖粗糙集的属性约简

摘要

利用覆盖粗糙集研究信息系统的属性约简.首先,回顾了覆盖粗糙集的基础知识,然后提出了相关类的概念以及几个相关定理,并且逐步阐述如何用相关类的方法来进行属性约简,最后用例子证明了此方法的可行性,并得出结论.%Recently, many scholars try to extend the rough set theory to the more general situation. The approach to attribute reduction in information systems is studied based on covering rough sets. A review of some basic notions is first made related to covering rough sets. Then, the definition of relevant classes and several related theorems is given, and the method is presented for reducing attributes. Finally, an example is employed to show that the proposed reduction method is an effective technique.