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相应于变精度粗糙集模型下的β上(下)分布约简利用重新标识的办法把不一致决策表变换成了一致决策表.证明了变换前的不一致决策表的β上(下)分布约简同变换后的一致决策表的属性约简是相同的.定义了不一致决策表的β上(下)分布核属性、β上(下)分布属性集重要度,证明了它们分别同对应的一致决策表的核属性、属性集重要度是相同的.
Corresponding to the upper (lower) distribution reduction of β in the variable precision rough set model, the inconsistency decision table is transformed into a consensus decision table by using the re-identification method. It is proved that the β upper (lower) distribution reduction of the inconsistency decision table before transformation Which is the same as the attribute reduction of the transformed consistent decision table.It defines the core of β upper (lower) distribution and the importance of the upper (lower) distribution attribute set of the inconsistent decision table, and proves that they are consistent with the corresponding consistent decision The core attribute of the table, attribute set importance is the same.