| 序目标信息系统中分布约简的矩阵算法 |
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| 引用本文： | 张晓燕,徐伟华,张文修.序目标信息系统中分布约简的矩阵算法[J].重庆工学院学报,2010(3):56-61. |
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| 作者姓名： | 张晓燕 徐伟华 张文修 |
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| 作者单位： | 重庆理工大学数理学院;西安交通大学理学院; |
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| 基金项目： | 重庆市教委科学技术研究项目(KJ090612) |
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| 摘 要： | 在序信息系统中引入了优势矩阵和目标分布矩阵的概念,建立了此类信息系统中分布约简的矩阵算法,同时通过实例分析验证了该算法的有效性,其优点是对数据复杂的信息表可相对容易地给出所有的分配约简,为序信息系统分配约简提供了一种便捷操作的属性约简方法.
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| 关 键 词： | 粗糙集 信息系统 分布约简 矩阵计算 |
Matrix Computation for Distribution Reduction in Ordered Information Systems |
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| ZHANG Xiao-yan,XU Wei-hua,ZHANG Wen-xiu.Matrix Computation for Distribution Reduction in Ordered Information Systems[J].Journal of Chongqing Institute of Technology,2010(3):56-61. |
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| Authors: | ZHANG Xiao-yan XU Wei-hua ZHANG Wen-xiu |
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| Affiliation: | 1.School of Mathematics and Physics;Chongqing Univtrsity of Technology;Chongqing 400054;China;2.School of Sciences;Xi'an Jiaotong University;Xi'an 710049;China |
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| Abstract: | This paper studies the problem of matrix computation for distribution reduction in ordered information systems.The dominance matrix and decision distribution matrix are introduced in ordered information systems.Furthermore,the algorithm of distribution reduction is obtained,from which we can provide new approach to attributes reductions in inconsistent ordered information systems.Finally,an example illustrates the validity of this method and shows that the method is applicable to a complex information syste... |
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| Keywords: | rough set information system distribution reduction matrix computation |
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