不完备信息系统中一种拓展粗糙集模型  

Extension of rough set model in incomplete information system

作　　者：申锦标[1] 

机构地区：[1]广西大学数学与信息科学学院,南宁530004

出　　处：《计算机应用研究》2009年第6期2101-2103,共3页Application Research of Computers

基　　金：广西教育厅面上基金资助项目(200707MS061);广西大学科研基金资助项目(X071087)

摘　　要：以同时具有遗漏型和缺席型未知属性值的不完备信息系统为研究对象,提出了一种使用参数进行控制的二元关系以及相应的粗糙集模型,将这种拓展粗糙集模型与不完备信息系统中现有的几种拓展粗糙集模型进行了对比研究。对一不完备信息系统进行了实例分析,以说明新提出的二元关系的有效性。This paper investigated the incomplete information system in which lost and absent unknown values were coexisting deeply. In such information systems, proposed a reflective relation which was based on the controlling of one parameter. Compared the rough set model based on this reflective relation with some other existing rough set models which had been used to deal with incomplete information system. Analyzed an illustrative example to indicate the validity of the new-defined binary relation.

关 键 词：不完备信息系统 粗糙集 容差关系 相似关系 特征关系 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]