An Alpha-Dominance Relation in Disjunctive Set-valued Ordered Information Systems

摘要：

　　By defining the degree of dominance between two sets with respect to a certain criterion,a new alpha-dominance relation is proposed in this paper.And then a rough set approach based on this relation in disjunctive set-valued ordered information systems is presented.After that,a ranking method for all objects is introduced to the disjunctive set-valued ordered information systems,and a numerical example is illustrated to demonstrate the validity of this ranking method.

关键词： Rough set Set-valued ordered information systems Dominance relation Ranking

作者: Yuejin Lv Wusong Yang

作者单位: School of Mathematics and Information Science, Guangxi University, Nanning 530004, China

会议类型: 国际会议

会议名称: 2012 2nd international Conference on Materials Science and Information Technology(2012第二届材料科学与信息技术国际会议)(MSIT2012)

会议地点: 西安

会议语种:英文

页码: 969-973

在线出版日期: 2012-08-24（万方平台首次上网日期，不代表论文的发表时间）