摘要
由于不完备信息系统中得到等价关系比较困难,这使粗信理论的应用受到限制,为此相似关系信息系统被得出,它利用对象之间相似性的把握能力对传统粗集理论进行扩充.在改进相似关系的基础上,提出以相似关系的量化值为尺度,并考虑决策规则的相容性对不完备决策信息系统的缺省数据进行填补.
For the difficulties of achieving equal relation in incomplete decision information system, the application of rough set theory is restricted. Using the control ability about the similar degree between individuals, the similar rellation system is put forward to extend the traditional rough set theory. In this paper, based on the improved simialr relation, an arithmetic is put fotward to fill up the default value accrding to the simiar degree and the tolerance of the decision rule in incomplete decision information system.
出处
《湖南工程学院学报（自然科学版）》
2007年第1期65-67,共3页
Journal of Hunan Institute of Engineering(Natural Science Edition)
关键词
粗集
不完备决策信息系统
相似关系
相似度
rough set
incomplete decision information system
simailar relation
similar degree
