Abstract：Attribute reduction of ordered information systems is an important issue in rough set theory and knowledge discovery.And the Boolean matrix presentation of rough set concept and operation is given by scholars.Based on this foundation，ordered information systems are represented by Boolean matrices and the distinguishing ability of attributes is defined.And then，an attribute reduction approach in an ordered information system based on Boolean matrix is put forward and is proven that it is equivalent to that one based on discernibility matrix.A demonstration at the end of the paper verifies the validity of the improved method.
黄琴，魏玲. 基于布尔矩阵的序信息系统属性约简方法[J]. 小型微型计算机系统, 2016, 37(8): 1717-1720.
HUANG Qin， WEI Ling. Attribute Reduction Approach to an Ordered Information System Based on Boolean Matrix. Journal of Chinese Computer Systems, 2016, 37(8): 1717-1720.