南京大学学报(自然科学版) ›› 2023, Vol. 59 ›› Issue (1): 111.doi: 10.13232/j.cnki.jnju.2023.01.001
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摘要:
以直觉模糊信息表为背景,利用粗糙集和模糊集,旨在筛除信息表中冗余的属性,提出获取决策规则的近似约简方法.首先,通过在直觉模糊集中引入带权重评分函数来定义加权直觉模糊序关系;进一步,为了提高模型分类的容错率,结合变精度粗糙集模型构建加权变精度直觉模糊序决策信息表;接着,在该决策表中提出上、下近似约简的判定定理和可辨识矩阵,进而生成两种求解上、下近似约简的方法;最后,通过具体案例和数值实验分析验证了该方法的有效性.
中图分类号:
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