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粗糙集理论在属性约简及知识分类中的应用
The Application of Rough Set Theory in Attributes Reduction and Knowledge Partition
【摘要】 本文针对不完备信息系统属性约简的两种定义,证明了两者的等价性。在此基础上结合粗糙集理论提出了相似矩阵、相似区间的概念,并将其应用于不完备信息系统知识分类的问题中。
【Abstract】 In this paper, the equivalence of two definitions of attributes reduction in incomplete information system is proved. On this bases, similar matrix and similar interval are proposed in combination with rough set theory. They are useful in knowledge partition problem in incomplete information system.
【关键词】 运筹学;
粗糙集;
不完备信息系统;
属性约简;
知识分类;
相似矩阵;
【Key words】 operational research; rough set; incomplete information system; attributes reduction; knowledge partition; similar matrix;
【Key words】 operational research; rough set; incomplete information system; attributes reduction; knowledge partition; similar matrix;
【基金】 国家自然科学基金资助项目(10271048);上海市重点学科建设项目
- 【文献出处】 运筹与管理 ,Operations Research and Management Science , 编辑部邮箱 ,2003年06期
- 【分类号】O159
- 【被引频次】14
- 【下载频次】216