| 变精度双向IS-粗集及其应用 |
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| 引用本文： | 郭志林.变精度双向IS-粗集及其应用[J].海军工程大学学报,2008,20(5). |
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| 作者姓名： | 郭志林 |
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| 作者单位： | 商丘师范学院,数学系,河南,商丘,476000 |
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| 基金项目： | 河南省自然科学基金，河南省高校科技创新人才支持计划，河南省教育厅自然科学基金 |
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| 摘 要： | 在S-粗集的基础上,提出了双向IS-粗集(two direction improper singular rough sets)的概念,给出双向IS-粗集及变精度双向IS-粗集的数学结构,讨论了变精度双向IS-粗集上、下近似算子的性质,并举例说明了变精度双向IS-粗集的应用.
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| 关 键 词： | S-粗集 IS-粗集 变精度双向IS-粗集 近似算子 α β-迁移 |
Two-direction improper singular rough sets with variable precision and its application |
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| GUO Zhi-lin.Two-direction improper singular rough sets with variable precision and its application[J].Journal of Naval University of Engineering,2008,20(5). |
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| Authors: | GUO Zhi-lin |
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| Institution: | Dept.of Mathematics;Shangqiu Normal College;Shangqiu 476000;China |
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| Abstract: | This paper presented the concepts of improper singular rough sets based on the theory of singular rough sets,and established the general mathematics structures of two-direction improper singular rough sets and the two-direction improper singular rough sets with variable precision.After dealing with its approximate operator nature,this paper gave an example to show the application of the two-direction improper singular rough sets with variable precision. |
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