| 集值信息系统在相容关系下的属性约简 |
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| 引用本文： | 陈子春,秦克云. 集值信息系统在相容关系下的属性约简[J]. 模糊系统与数学, 2009, 23(1) |
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| 作者姓名： | 陈子春 秦克云 |
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| 作者单位： | 西南交通大学理学院,四川,成都,610013;西华大学数学与计算机学院,四川,成都,610039;西南交通大学理学院,四川,成都,610013 |
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| 摘 要： | 借助于属性集值的相似程度在集值信息系统上定义了一种新的相客关系,给出了这种相客关系下集值信息系统的属性约简与判定,得到了集值信息系统属性约简的具体探作方法,并讨论了相似水平对集值信息系统的属性约简的影响.
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| 关 键 词： | 集值信息系统 相似水平 相客关系 属性约简 |
Attribute Reduction of Set-valued Information System Based on Tolerance Relation |
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| CHEN Zi-chun,QIN Ke-yun. Attribute Reduction of Set-valued Information System Based on Tolerance Relation[J]. Fuzzy Systems and Mathematics, 2009, 23(1) |
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| Authors: | CHEN Zi-chun QIN Ke-yun |
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| Affiliation: | 1.Department of Mathematics;Southwest Jiaotong University;Chengdu 610013;China;2.School of Mathematics and Computer;Xihua University;Chengdu 610039;China |
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| Abstract: | A new tolerance relation is defined in set-valued information system by similarity grade of attribute' set-valued,based on the tolerance relation the problem of attribute reduction and the judgment in set-valued information system are studied,from which a new approach to attribute reductions can be provided in set-valued information system,and the influence of similarity level on attribute reduction are discussed. |
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| Keywords: | Set-valued Information System Similarity level Tolerance Relation Attribute Reduction |
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