南京大学学报(自然科学版) ›› 2022, Vol. 58 ›› Issue (2): 255263.doi: 10.13232/j.cnki.jnju.2022.02.009
• • 上一篇
Weihua Xu(), Zimo Kong, Yaoqi Chen
摘要:
为保证关键属性在属性约简时能够被保留,可对信息系统的属性进行加权,从而提高关键属性的影响力.基于此,在属性加权的模糊序决策信息系统中建立了上、下近似约简的模型,得到两种约简的判定定理,并且给出求解上、下近似约简的辨识矩阵以及约简方法.最后,通过实例验证了该约简方法的有效性.
中图分类号:
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