区间值信息系统在变精度优势关系下的粗集模型  

Rough Set Model of Interval-valued Information Systems Based on Variable Precision Dominance Relation

作　　者：林耀进[1] 李进金[1] 周忠眉[1] 

机构地区：[1]漳州师范学院计算机科学与工程系,福建漳州363000

出　　处：《模糊系统与数学》2011年第6期157-161,共5页Fuzzy Systems and Mathematics

基　　金：国家自然科学基金资助项目(10971186;11061004;71140004);漳州师范学院科研基金资助项目(SK09005)

摘　　要：借助于属性区间值的优势程度在区间值信息系统中定义了一种具有变精度的优势关系,给出了这种变精度优势关系下的属性约简与判定,得到了区间值信息系统上属性约简的具体操作方法。考虑对象的属性值具有优劣顺序,基于变精度优势度提出了对象排序的方法。A variable precision dominance relation was defined in interval-valued information systems by the dominance degree of attribute＇s interval-valued. Based on variable precision dominance relation, the attribute reduction and judgment was presented, a practical method of attribute reduction was provided from interval-valued system. Based on variable precision dominance degree, an approach to queuing problems for objects in present of attributes are criteria is developed.

关 键 词：区间值信息系统 变精度优势关系 优势水平 属性约简 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]