摘要
给出基于S-粗集的单向属性迁移集合,双向属性迁移集合以及单向信息系统和双向信息系统的模型;又给出属性迁移的若干性质。从Skowron提出的分辨矩阵的角度出发,给出了S-粗集中的分辨矩阵,并在此基础上提出了基于S-粗集理论上的属性约简算法。最后给出该算法在医学方面中的应用,证明了该算法的有效性。
This PAPER puts forward the one-direction singular set,two-direction singular set;a model based on the S-rough sets information system is also given.And it discusses some features of the attribute transfer.From Skowron＇s discernbility matrix point of view,discernable matrix of S-rough is proposed.Then,an attributes reduction algorithm based on the S-rough set theory for information system is rendered.Finally,the algorithm in the application of medicine is given.It has proven this algorithm validity.
出处
《计算机工程与应用》
CSCD
北大核心
2009年第34期44-46,共3页
Computer Engineering and Applications
基金
国家自然科学基金青年基金资助项目(No.10201029)
关键词
S-粗集
分辨矩阵
属性迁移
属性约简
singular rough set
discernbility matrix
attribute transfer
attribute reduction
