摘要
知识约简是粗糙集理论研究中的一个重要内容,可辨识矩阵是属性约简的一个重要方法,把这种方法推广到不完备模糊决策信息中,定义了相似关系下的可辨识矩阵,提出了不完备模糊决策信息系统中相似关系的可辨识矩阵属性约简的算法,最后用实例验证了算法的可行性.
Knowledge reduction is one of the important topics in the research on rough set theory,discernibility matrix is one of the important methods in knowledge reduction.In this paper,we extend it to incomplete fuzzy decision information system,a new discernibility matrix based on the similarity relation was defined,a new discernibility matrix algorithm based on the similarity relation is presented.At last the effectiveness of the algorithm is proved by an example.
出处
《甘肃联合大学学报（自然科学版）》
2013年第3期38-41,共4页
Journal of Gansu Lianhe University :Natural Sciences
基金
国家自然科学基金项目(10961002)
宁夏高等研究生创新计划项目(A09009)
宁夏自然科学基金项目(NZ1057)
关键词
粗糙集
可辨识矩阵
知识约简
相似关系
rough set
discernibility matrix
knowledge reduction
similarity relation
