| 信息表的闭离散化方案研究 |
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| 引用本文： | 王立宏.信息表的闭离散化方案研究[J].计算机工程与应用,2008,44(16):30-33. |
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| 作者姓名： | 王立宏 |
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| 作者单位： | 烟台大学 计算机科学与技术学院，山东 烟台 264005 |
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| 基金项目： | 国家自然科学基金
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山东省自然科学基金 |
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| 摘 要： | 提出对象域U的有序划分概念，讨论一种特殊的离散化方案（闭离散化方案）。给出对象域U的有序划分对应的闭离散化方案获取算法CDA，分析闭离散化方案与对象域U的有序划分之间的关系，证明了闭离散化方案在离散格到划分格的映射f下能保持交并运算。
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| 关 键 词： | 闭离散化方案 离散格 有序划分 粗集 |
| 文章编号： | 1002-8331(2008)16-0030-04 |
| 收稿时间： | 2008-1-17 |
| 修稿时间： | 2008年1月17日 |
Study of closed discretization schemes of information tables |
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| WANG Li-hong.Study of closed discretization schemes of information tables[J].Computer Engineering and Applications,2008,44(16):30-33. |
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| Authors: | WANG Li-hong |
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| Affiliation: | School of Computer Science and Technology，Yantai University，Yantai，Shandong 264005，China |
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| Abstract: | This paper reviews the concept of discretization lattice composed by discretization schemes,proposes the concept of ordered partition of universe U,and discusses a special kind of discretization schemes named closed discretization schemes.We give a closed discretization scheme acquisition algorithm(CDA) for an ordered partition of universe U,analyze the relationship between closed discretization schemes and ordered partitions,and draw the conclusion that under the function f from discretization lattice to partition lattice,closed discretization schemes hold the union and intersection operations. |
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| Keywords: | closed discretization schemes discretization lattice ordered partition rough set |
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