| 基于支撑函数的概念格属性约简 |
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| 引用本文： | 葛方斌,杨林,刘伟,王建新.基于支撑函数的概念格属性约简[J].计算机科学,2008,35(5):169-171. |
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| 作者姓名： | 葛方斌 杨林 刘伟 王建新 |
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| 作者单位： | 1. 解放军理工大学指挥自动化学院,南京,210007
2. 中国电子系统工程研究所,北京,100039 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 依据概念格中一个概念的内涵属性相对于另一个概念的内涵的不同关系,提出了区分属性概念,并研究了其性质;利用区分属性构造出概念格支撑函数.提出并证明了以支撑函数为基础的形式背景属性约简定理,改进了文献7]中基于辨识函数的属性约简方法.
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| 关 键 词： | 形式背景 概念格 区分属性 支撑函数 属性约简 |
Improvement of Attributes Reduction of Concept Lattices |
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| GE Fang-bin,YANG Lin,LIU Wei,WANG Jian-xin.Improvement of Attributes Reduction of Concept Lattices[J].Computer Science,2008,35(5):169-171. |
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| Authors: | GE Fang-bin YANG Lin LIU Wei WANG Jian-xin |
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| Affiliation: | GE Fang-bin~1 YANG Lin~2 LIU Wei~1 WANG Jian-xin~2 (College of Comm, Automation,PLA University of Science , Technology,Nanjing 210007,China)~1(Institute of China Electronic System Engineering,Beijing 100039,China)~2 |
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| Abstract: | There are two kinds of relations between the connotation attributes of concepts and the connotation of another concept in concept lattices.Based on them,the concept of distinguishable attributes is presented,and its properties are studied.At the same time,the supporting function is constructed with distinguishable attributes,and the theorem, which is about attributes reduction of formal contexts,is presented and proved based on supporting functions.The method of attributes reduction in the literature7]is i... |
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| Keywords: | Formal context Concept lattice Distinguishable attribute Supporting function Attributes reduction |
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