| 基于集值决策属性的集值信息系统 |
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| 引用本文： | 宋笑雪,张文修.基于集值决策属性的集值信息系统[J].计算机工程与应用,2007,43(17):8-10. |
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| 作者姓名： | 宋笑雪 张文修 |
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| 作者单位： | 1. 西安交通大学,理学院,信息与系统科学研究所,西安,710049;咸阳师范学院,计算机系,陕西,成阳,712000
2. 西安交通大学,理学院,信息与系统科学研究所,西安,710049 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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成阳师范学院专项科研基金 |
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| 摘 要： | 定义了决策属性也是集合子集的集值决策信息系统,给出了基于集值决策属性的协调集值决策信息系统的定义,得到了协调集值决策信息系统属性约简的判定定理和辨识矩阵,并讨论了在属性约简中起不同作用的属性分类及其特征。定义了不协调集值决策信息系统的分配协调集,给出了基于集值决策属性的不协调集值决策信息系统属性约简的方法。
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| 关 键 词： | 集值决策信息系统 约简 辨识矩阵 属性特征 分配约简 |
| 文章编号： | 1002-8331（2007）17-0008-03 |
| 修稿时间： | 2007-03 |
Set-valued information systems based on set-valued decision attributes |
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| SONG Xiao-Xue,ZHANG Wen-Xiu.Set-valued information systems based on set-valued decision attributes[J].Computer Engineering and Applications,2007,43(17):8-10. |
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| Authors: | SONG Xiao-Xue ZHANG Wen-Xiu |
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| Affiliation: | 1.Institute of Information and System Science，Xi’an Jiaotong University，Xi’an 710049，China 2.Department of Computer，Xianyang Normal College，Xianyang，Shaanxi 712000，China |
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| Abstract: | The paper defines a set-valued decision information system which the decision attributes are also the subsets.The definition of a consistent set-valued decision information system based on the set-valued decision attributes is given.The judgment theorems and the discernibility matrices of attribute reduction in a consistent set-valued decision information system are discussed.The characteristics of different type of attributes in set-valued decision information system are studied,and the judgment theorems about them are obtained.The assignment reduction is introduced in the inconsistent set-valued decision information system in this paper,and the method about reduction of the inconsistent system is given. |
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| Keywords: | set-valued decision information system reduction discernibility matrices attributes characteristics assignment reduction |
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