摘要
对于不完备信息系统完备化问题,现在常采用的方法是数据补齐法和扩充法,在研究和分析了其优劣后,提出一种完全依据信息系统提供的信息来产生布尔可辨矩阵的方法。给出一个基于对布尔可辨矩阵进行化简的求属性约简(或最小属性约简)的高效算法。
The popular method of completion for incomplete information system includes data complementation and extension method.In this paper,several methods solving the incomplete information system is analyzed and another method which generates boolean discernibility matrix based on information offered totally by information system is presented.And an efficient algorithm is provided for attribute reduction based on boolean discernibility matrix.
出处
《计算机工程与应用》
CSCD
北大核心
2010年第1期119-121,共3页
Computer Engineering and Applications
基金
江苏省科技攻关计划No.BE2006357~~
关键词
粗糙集
不完备信息系统
布尔可辨矩阵
属性约简
rough set
incomplete information system
boolean discernibility matrix
attribute reduction
