| 随机信息系统中基于不可辨识矩阵的属性约简 |
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| 引用本文： | 成蓉华,吴兆兵. 随机信息系统中基于不可辨识矩阵的属性约简[J]. 云南民族大学学报(自然科学版), 2007, 16(4): 324-326,340 |
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| 作者姓名： | 成蓉华 吴兆兵 |
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| 作者单位： | 1. 云南财经大学,统计与数学学院,云南昆明650221
2. 红云集团,昆明卷烟厂,云南昆明650202 |
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| 摘 要： | 在随机信息系统中,根据不可辨识关系,提出了不可辨识属性矩阵的概念,证明了不可辨识属性矩阵与可辨识属性矩阵的关系,最后提出了一种基于不可辨识属性矩阵约简算法.实例研究表明,相对于可辨识属性矩阵算法,该算法在时间和存储空间上都有较大的改善和提高.
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| 关 键 词： | 不可辨识属性矩阵 可辨识属性矩阵 信任测度 似然测度 mass函数 |
| 文章编号： | 1672-8513（2007）04-0324-03 |
| 收稿时间： | 2007-05-23 |
| 修稿时间： | 2007-05-23 |
Property Reduction Based on Indiscernibility Attribute Matrix |
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| Cheng Ronghua,Wu Zhaobing. Property Reduction Based on Indiscernibility Attribute Matrix[J]. Journal of Yunnan Nationalities University:Natural Sciences Edition, 2007, 16(4): 324-326,340 |
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| Authors: | Cheng Ronghua Wu Zhaobing |
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| Affiliation: | 1. Facuhy of Statistics and Mathermatics,Yurman University of Finance and Economics, Kunming 650221, China; 2. Cigarette Factory, Hongyun Group, Kunming 650202, China |
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| Abstract: | In random information systems,based on the indiscernibility relation,the concept of indiscernibility attribute matrix is proposed and the relationship between discernibility attribute matrix and indiscernibility attribute matrix is shown.Then a reduction algorithm based on indiscernibility attribute matrix is introduced.Compared with discernibility attribute matrix algorithm,from the example,this algorithm greatly reduces running time and memory space. |
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| Keywords: | indiscernibility attribute matrix discernibility attribute matrix belief measure approximation measure mass function |
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