太赫兹科学与电子信息学报2016，Vol.14Issue(4)：625-629,5.DOI:10.11805/TKYDA201604.0625
一种改进的无核信息系统属性约简算法
Attribute reduction algorithm for non-core information system
摘要
Abstract
According to the characteristics of non-core information system, one new heuristic attribute reduction algorithm is proposed based on mutual information, in which the evaluation ofattribute importance depends on two indexes, the increment of mutual information and the information entropy. When one attribute is added to the reduction sets, the attribute with the largest attribute importance is selected for the core attribute. This method can solve the problem of increased computational complexity caused by the randomly selected attributes. The simulation experiments indicate that the proposed algorithm is effective, which can not only improve the efficiency ofattribute reduction,but also decrease the number of attribute reduction.关键词
粗糙集/属性约简/互信息/无核信息系统Key words
rough set/attribute reduction/mutual information/non-core information system分类
信息技术与安全科学引用本文复制引用
杨素敏,蒙洁,张政保,袁红丽..一种改进的无核信息系统属性约简算法[J].太赫兹科学与电子信息学报,2016,14(4):625-629,5.基金项目
国家实验室开放课题基金资助项目(2015K0304B) （2015K0304B）
