%A QIU Ting-ting, LI Ke-dian %T μ-reduction based on the subset of the objects in inconsistent information systems %0 Journal Article %D 2015 %J JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) %R 10.6040/j.issn.1671-9352.0.2014.096 %P 35-39 %V 50 %N 05 %U {http://lxbwk.njournal.sdu.edu.cn/CN/abstract/article_2686.shtml} %8 2015-05-20 %X The μ-reduction based on the subsets of the objects in inconsistent information systems is given by the equivalence relation on the set group. Also, some properties of μ-reduction,the judgement theorem and corresponding discernibility matrix with respect to the μ-reduction are obtained. And an approach to calculate μ-reduction is provided. A numerical example is used to illustrate the validity of this method.