含属性加权模糊序决策信息系统的近似约简
徐伟华, 孔子默, 陈曜琦

Approximate reduction of fuzzy ordered decision information system with attribute weighting
Weihua Xu, Zimo Kong, Yaoqi Chen
表2 表1的上近似辨识矩阵
Table 2 The upper approximation identification matrix of Table 1
x1x2x3x4x5
x1?????
x2??a3??
x3?????
x4?????
x5?????