Secondly, according to the characters of the knowledge base, a new fault diagnosis is presented based on fuzzy set covering theory.
其次，在此知识库基础上提出了基于模糊简单覆盖集理论的故障诊断方法。
参考来源 - 地区电网故障诊断与报警分析的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This article applies the generalized covering rough set theory to information retrieval model.
将广义覆盖粗糙集理论及其计算运用到信息检索模型。
Then discusses the attributes reduction based on Rough Set theory and set covering problem to combine them.
然后简单探讨了粗糙集理论的属性约简和集合覆盖问题，从而将二者联系起来。
Furthermore the deeper properties of rough sets and topology are achieved by covering Spaces, and rough sets theory and topology have been enriched from the operator-oriented and set-oriented views.
利用覆盖空间，得到了粗糙集和拓扑中更深刻的性质，从算子论和集合论的角度丰富和深化了粗糙集与拓扑的内容。
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