信息系统约简的若干问题  

Research on some theoretical problems of data enriching in information system

作　　者：杨建新[1] 陆金桂[1] 黄振仁[2] 胡平[1] 

机构地区：[1]南京工业大学信息科学与工程学院,江苏南京210009 [2]南京工业大学机械工程学院,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2002年第1期72-77,共6页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：教育部优秀青年教师资助项目;国家自然科学基金项目(60 175 0 19);江苏省教育厅资助项目

摘　　要：信息系统约简是个重要的课题 ,借鉴粗糙隶属度、最小分类规则及关联规则可信度等概念 ,推广了粗集理论中知识的核与简化的概念 ,使之能更好地描述决策表的属性约简 ;Data enriching was an important problem in information system. In order to describe the attributes enriching in decision table more effectively, the concept of core and reduction of knowledge in rough set theory was generalized to define the core and reduction of attribute of decision table, by virtue of the concept of rough membership function, minimum classified rules, rule confidence of association rules. The relationship between data enriching in information table and that in decision table was investigated theoretically.

关 键 词：信息系统 数据浓缩 粗集理论 约简 信息表 决策表 关联规则 知识 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程] G201[自动化与计算机技术—控制科学与工程]