| 近似空间映射与属性约简算法 |
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| 引用本文： | 李德玉,张永涛.近似空间映射与属性约简算法[J].山西大学学报(自然科学版),2005,28(4):337-341. |
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| 作者姓名： | 李德玉 张永涛 |
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| 作者单位： | 山西大学,计算机与信息技术学院,山西,太原,030006 |
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| 基金项目： | Natural Science Foundation of China （No. 60573074）, Natural Science Foundation of Shanxi （No. 20041040）, Shanxi Foundation of Tackling Key Problem in Science and Technology （No. 051129）, Youth Science Foundation of Shanxi（No. 20031027） |
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| 摘 要： | 信息系统作为一种基本的数学模型广泛应用于人工智能的各个分支，例如分类问题、专家系统、决策支持、上下文分析和数据挖掘．而属性约简是信息系统研究的基本问题．文章提出了近似空间映射（ASM）的概念，并讨论了它与属性约简的关系，提出了基于ASM的属性约简新算法．
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| 关 键 词： | 信息系统 属性依赖 属性约简 近似空间映射 |
| 文章编号： | 0253-2395(2005)04-0337-05 |
| 收稿时间： | 09 8 2005 12:00AM |
| 修稿时间： | 2005年9月8日 |
Approximation Space Mapping and Attribute Reduction Algorithms |
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| LI Deyu,ZHANG Yongtao.Approximation Space Mapping and Attribute Reduction Algorithms[J].Journal of Shanxi University (Natural Science Edition),2005,28(4):337-341. |
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| Authors: | LI Deyu ZHANG Yongtao |
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| Institution: | School of Computer and Information Technology,Shanxi University, Taiyuan 030006, China |
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| Abstract: | Information system is a basic mathematical model of many branches of Artificial Intelligence such asclassification problem,expert system,decision making,context analysis and data mining.The problem ofattribute reduction is one of the basic problems in study of information system.In this paper,the notion of anapproximation space mapping(ASM) is introduced,the relationship between ASM and attribute reduction isdiscussed and some new algorithms of attribute reduction based on ASM is presented. |
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| Keywords: | information system attribute dependence attribute reduction approximation space mapping |
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