| 一种改进的粗糙集权重方法 |
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| 引用本文： | 谭宗凤,除章艳,王帅. 一种改进的粗糙集权重方法[J]. 计算机工程与应用, 2012, 48(18): 115-118 |
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| 作者姓名： | 谭宗凤 除章艳 王帅 |
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| 作者单位： | 1. 广西师范大学数学科学学院,广西桂林,541004
2. 广西师范大学计算机科学与信息工程学院,广西桂林,541004 |
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| 基金项目： | 国家自然科学基金，广西自然科学基金 |
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| 摘 要： | 深入研究粗糙集表征的属性重要度,针对现有粗糙集理论的属性权重确立方法的不足,结合属性集中各个条件属性的重要度及其确定的条件属性取值个数,提出了改进的粗糙集权重的确定方法,分析了其合理性。通过实例说明了,改进的粗糙集权重方法可以解决原有粗糙集权重确定方法存在的问题。
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| 关 键 词： | 权重 粗糙集 属性重要度 决策表 |
Improved method of attribute weight based on rough sets theory |
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| TAN Zongfeng , XU Zhangyan , WANG Shuai. Improved method of attribute weight based on rough sets theory[J]. Computer Engineering and Applications, 2012, 48(18): 115-118 |
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| Authors: | TAN Zongfeng XU Zhangyan WANG Shuai |
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| Affiliation: | 1.College of Mathematical Sciences,Guangxi Normal University,Guilin,Guangxi 541004,China 2.College of Computer Science & Information Engineering,Guangxi Normal University,Guilin,Guangxi 541004,China |
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| Abstract: | This paper deeply studies the attribute importance represented by rough set.Considering the drawbacks of the existing methods of attribute weight assignment based on rough set and both individual significance degree and the number of values of each attribute in the conditional attributes,it proposes an improved method of attribute weight assignment based on rough set,and it’s rationality is proved.A case is used to prove that improved weighting method can solve the existing problem. |
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| Keywords: | weight rough sets attribute significance degree decision table |
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