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- We validate that the multi-level rough set approximation induced by a sequence of reflexive relations is a special case of CBM-RS. 经过验证，二元自反关系序列下的多层粗糙集模型是CBM-RS模型的特例。
- rough set approximation 粗糙近似
- Rough set theory as a new mathematical tool is fit for data mining. It consists of information table, equivalent relation, upper/lower approximation and reduction. 粗糙集作为一种新型的数学工具，它用信息表作为知识表达工具，把定义在属性集上的等价关系看作知识，把属性约简作为规则获取的途径，是一种有效的数据挖掘工具。
- The advantage of Rough set is the ability to acquire the knowledge. 粗糙集理论的要点是将分类与知识联系在一起，粗糙集理论认为知识即是将对象进行分类的能力。
- Reduction of knowledge is the core of rough set theory. 摘要知识约简是粗糙集理论的核心问题。
- This paper presents a rough set theory based on the text classification. 文章提出了一种基于粗糙集理论的文本分类方法。
- Granular computing is emerging as a powerful tool for rough set theory. 粒度计算是粗糙集理论研究的一种强有力的工具。
- The key of the rough set theory is deal with the approximation of an arbitrarysubset of a universe by two subsets called lower and upper approximations. 粗糙集理论的关键是建立两个被称为下、上近似的子集来近似表示论域上的任意集合.
- The attributes reduction of Rough Set is NP problem, and it makes Rough Set hard to use broadly in reality. 摘要粗糙集的属性约简属于NP问题，这就使得粗糙集很难在现实中得到广泛的应用。
- In addition, we process the polysemous problem using rough sets. 本系统还利用模糊集来处理多义词的问题。
- The rough communication is a new application of rough sets theory. 信息粗传递是粗糙集理论的一个新的应用。
- In addition,we process the polysemous problem using rough sets. 另外,本系统还利用模糊集来处理多义词的问题。
- Based on rough set theory, a new fault diagnosis method of power electronic circuits was presented. 基于粗糙集理论,提出了一种电力电子电路故障诊断的新方法:粗糙集方法。
- A new method of rough set and neural network for fan trouble diagnosis is presented. 提出了一种粗糙集理论与神经网络集成的风机故障诊断方法。
- Rough set theory and synthesis reasoning theory can be integrated and generalized successfully. 实现了对粗糙集理论和综合推理理论的融合和成功扩展。
- According to the two practical situations of information communication, this paper proposes the concepts of lower and upper approximation information rough communication using rough sets. 摘要针对实际中两种信息传递情况，提出了两种信息粗传递概念一下近似和上近似信息粗传递。
- Through these studies, the study of rough set's algebraic properties are spreaded to right involution groupoid. 这些结果将粗糙集代数性质的研究扩展到右对合广群这个代数系统中。
- With the basic principle of rough set, customers dig out the decision rules they wanted. 利用粗糙集理论的基本原理,挖掘出用户需要的决策规则。
- In this paper,the authors present a method combined rough set(RS) with least square support vector regression(LS-SVR). 该文提出结合粗糙集(RS)和最小二乘支持向量回归(LS-SVR)的方法。
- Weighted rough set(WRS) model is an extension of rough set(RS),based on variable precision rough set(VPRS) model. 加权粗糙集模型是粗糙集基于变精度模型的一种扩展。
