【Key words】 Missing Value； Minimum Description Length Principle； Knowledge Reduction； Minimum Reduction； Granular； Granular Computing；
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It proved that the algorithm is complete, and can obtain the minimum reduction for compatible or incompatible information systems.
证明了该算法是完备算法,能得到最小约简且适用于相容与不相容信息系统。
参考来源 - 基于粗糙集的属性约简算法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
People always expect to find out minimum reduction, but it has already been proved that it is a NP complete problem.
人们总期望找到最小约简，但这已被证明是一个NP完全问题。
RESULTS:The content of DATS in freeze-drying powders of inclusion complex had a minimum reduction among the three under conditions of illumination and high temperature.
结果：在光照、高温条件下， 包合物冻干粉中DATS含量下降程度为三者中最小。
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