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一种改进的二进制可辨识矩阵及属性核计算方法 被引量:5

An Improved Binary Discernibility and Approach to Computing the Feature Core
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摘要 属性约简是粗糙集理论中的一个重要内容,其核心任务是得到属性集的核。本文对目前求核方法存在的问题进行了分析,提出了一种改进的二进制可辨识矩阵及属性核计算方法,并证明了方法的正确性。该方法适用于任何决策表(相容的或不相容的)。 Attribute reduction is considered one of the most important contents of the Rough Set Theory. The problem of calculating the core attributes of a dicision table is studied,an improved binary discernibility and approach to computing the feature core is put forward in this paper,and the correctness of this method is proved. This method is suitable for any dicision tables. A
作者 徐凤生
出处 《计算机工程与科学》 CSCD 2006年第8期66-69,共4页 Computer Engineering & Science
基金 德州市科学技术攻关计划项目(040705)
关键词 粗糙集 上近似集 下近似集 属性核 关键属性 rough set upper approximation set lower approximation set feature core key feature
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