摘要
针对属性评价值为三参数区间灰数的不完备信息系统,提出了一种基于θ-灰色优势关系的信息系统属性约简方法。根据三参数区间灰数的定义,给出两个三参数区间灰数基于可能度的大小关系,在此基础上,构建方案属性值之间的一种θ-灰色优势关系,并结合可辨识矩阵,给出了这类不完备信息系统属性约简方法。应用实例表明了方法的合理性和有效性。
For the incomplete information system, in which the attribute value of alternatives is three-parameter intervalgrey number, an attribute reduction of information system based on θ -grey dominance relation is proposed. According tothe definition of three-parameter interval grey number, the order relation of two three-parameter interval grey numbersbased on possibility is presented. On this basis, a θ -grey dominance relation between attribute value is established. Atlast, the attribute reduction of this type of incomplete information system is put forward combined with the discernibilitymatrix. An applied example is given to illustrate the usefulness and effectiveness of the proposed method.
作者
罗党
毛文鑫
孙慧芳
LUO Dang;MAO Wenxin;SUN Huifang(School of Mathematics and Information Sciences, North China University of Water Resources and Electric Power, Zhengzhou 450046, China;School of Management and Economics, North China University of Water Resources and Electric Power, Zhengzhou 450046,China)
出处
《计算机工程与应用》
CSCD
北大核心
2016年第16期156-161,共6页
Computer Engineering and Applications
基金
国家自然科学基金(No.71271086)
河南省科技厅重点攻关项目(No.142102310123)
河南省高等学校重点科研项目资助计划(No.15A630005)
关键词
三参数区间灰数
不完备信息系统
灰色优势关系
属性约简
three-parameter interval grey number
incomplete information system
grey dominance relation
attribute reduction
