基于可能度优势关系的区间序粗糙集模型  

Interval Ordered Rough Set Model Based on Possible Degree Dominance Relation

作　　者：徐智明[1] 刘宏 马琳[3] 陈小卫[4] 

机构地区：[1]92819部队 [2]海军驻航天一院军代室 [3]海军军训器材研究所 [4]海军航空工程学院

出　　处：《舰船电子工程》2012年第9期40-42,100,共4页Ship Electronic Engineering

摘　　要：针对当前区间序信息系统上五种优势关系的不足,提出了一种新的优势关系—α-可能度优势关系。分析了α-可能度优势关系的基本性质以及与其他优势关系的联系,进而定义了基于α-可能度优势关系的扩展粗糙集模型。算例表明,α-可能度优势关系通过α的变化来调节优势关系的"优于"程度,能够克服以往优势关系定义过宽或过窄而带来的不足。To sovle the deficiencies of five dominance relations in interval ordered systems, a new dominance relation-α-possible degree dominance relation is proposed. The basic properties of α-possible degree dominance relation and the relationships with other dominance relation are analysed. Furthermore, an extended rough set based on α-possible degree dominance relation is defined. The example shows that：by the variety the value of a to adjust the degree of dominance, α-possible degree dominance relation can overcome the deficiencies of former dominance relation in in interval ordered systems.

关 键 词：区间序信息系统 α-可能度优势关系 粗糙近似 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]