| 基于不可区分矩阵的属性频率约简 |
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| 引用本文： | 傅强,张天永,彭隆泽.基于不可区分矩阵的属性频率约简[J].重庆建筑大学学报,2004,26(1):123-128. |
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| 作者姓名： | 傅强 张天永 彭隆泽 |
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| 作者单位： | 1. 重庆大学,数理学院,重庆,400044
2. 重庆大学,工商管理学院,重庆,400044 |
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| 摘 要： | 根据不可区分关系,提出了不可区分矩阵的概念.证明了不可区分矩阵与区分矩阵的关系,指出了不可区分矩阵约简算法的优势.给出了基于不可区分矩阵的属性频率约简算法.相对于区分矩阵算法,该算法在时间和存储空间花费上都有较大的改善和提高.
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| 关 键 词： | 不可区分矩阵 区分矩阵 属性约简 |
| 文章编号： | 1006-7329(2004)01-0123-06 |
| 修稿时间： | 2003年5月22日 |
Attribute Reduction Based on Indiscernibility Matrix |
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| FU Qiang,ZHANG Tian-yong,PEN Long-ze.Attribute Reduction Based on Indiscernibility Matrix[J].Journal of Chongqing Jianzhu University,2004,26(1):123-128. |
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| Authors: | FU Qiang~ ZHANG Tian-yong~ PEN Long-ze~ |
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| Affiliation: | FU Qiang~1,ZHANG Tian-yong~2,PEN Long-ze~1 |
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| Abstract: | According to the indiscernibility relation, in this paper, the concept of indiscernibility matrix is proposed and the relation between discernibility matrix and indiscernibility matrix is shown. The advantage of indiscernibility matrix is pointed out. Then, an attribute reduction algorithm based on indiscernibility matrix is introduced. Compared with discernibility matrix algorithm, this algorithm greatly reduces running time and memory space. |
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| Keywords: | indiscernibility matrix discernibility matrix attribute reduction |
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