摘要
决策表属性核的计算往往是基于Rough集理论的决策信息系统约简过程的出发点和关键.不相容决策信息系统是信息系统约简处理研究的重点.本文对不相容决策信息系统属性核的计算问题进行研究,证明了Rough集理论代数观和信息观中属性核概念的包含关系,以及几种属性核计算方法所得到的结果之间的包含关系.
The attribute core of a decision table is often the start and key of many decision information system reduction procedures based on rough set theory. Recent studies of information system reduction and processing focus on inconsistent decision information systems. The problem of calculating the attribute core of inconsistent decision information systems was studied. The inclusion relation among the two definitions of the attribute core in the algebra view and information view of rough set theory and the results of several algorithms for computing the attribute core of decision information systems were proved.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2004年第12期2094-2098,共5页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目(60373111)
科技部攀登-特别支持费
高等学校骨干教师资助计划(GG-520-10617-1001)
重庆市教委科学技术研究(040505)
重庆市应用基础研究基金资助项目
