基于不完备信息的粗糙集确定备件品种

基于不完备信息的粗糙集确定备件品种
黄建新, 　杨建军, 　张志峰
(空军工程大学导弹学院,陕西三原713800)
　　摘　　　要: 针对确定备件品种不完备信息的多属性决策问题,给出了基于不完备信息系统的粗糙集模型,并依据扩展优势关系确定粗糙集的上、下近似集,从而获取分类决策规则;通过一个实例说明该方法的可行性和有效性。
关　键　词: 不完备信息; 粗糙集; 备件
中图分类号: E 911
文献标识码: A 　　　　文章编号: 167320127 (2005) 0320044203
Defining the Cla ss of Spare Part s Ba sed on the Rough Set of Incomplete Information
HUAN GJ ian2xin , 　YAN GJ ian2jun , 　ZHAN G Zhi2feng
( The Missile Institute , Air Force Engineering University , Sanyuan Shaanxi 713800 , China)
Abstract : In this paper , a model based on t he rough set of t he incomplete information system is proposed to multi2att ribute decision making problems to define incomplete information of t he spare part s class. Then up and down2approximation set s of t he rough set are defined by t he extended dominance relation , and t he sorting decision rules are obtained. Finally , t he feasibility and effectiveness of
t he met hod are demonst rated by a real example.
Key words : incomplete information ; rough set ; spare parts