| 一种基于一致性准则的属性约简算法 |
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| 引用本文： | 杨明.一种基于一致性准则的属性约简算法[J].计算机学报,2010,33(2). |
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| 作者姓名： | 杨明 |
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| 作者单位： | 南京师范大学计算机科学与技术学院,南京,210097;江苏省信息安全保密技术工程研究中心,南京,210097 |
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| 基金项目： | 国家自然科学基金(60873176);;江苏省自然科学基金(BK2008430)资助~~ |
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| 摘 要： | 粗糙集方法提供了一种新的处理不精确、不完全与不相容知识的数学工具.属性约简是粗糙集理论的重要研究内容之一,已有的大多数属性约简算法主要针对离散值属性的约简,面向连续值属性的约简报道较少.为此,在引入新的对象一致性定义后,提出一种新的基于一致性准则的属性约简模型,该模型可针对离散或连续值属性进行有效的约简,是经典粗糙集属性约简模型的有效推广.依据新模型,提出了一种基于一致性准则的属性约简算法,该算法可有效进行连续值属性的约简,且通过错分对象数的控制可有效增强属性约简的有效性.理论分析和实验表明提出的算法是有效可行的.
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| 关 键 词： | 粗糙集 属性约简 一致性准则 |
A Novel Algorithm for Attribute Reduction Based on Consistency Criterion |
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| YANG Ming.A Novel Algorithm for Attribute Reduction Based on Consistency Criterion[J].Chinese Journal of Computers,2010,33(2). |
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| Authors: | YANG Ming |
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| Affiliation: | School of Computer Science and Technology/a>;Nanjing Normal University/a>;Nanjing 210097;Jiangsu Research Center of Information Security & Privacy Technology/a>;Nanjing 210097 |
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| Abstract: | Rough set theory is a new mathematical tool to deal with imprecise,incomplete and inconsistent data.Attribute reduction is one of important parts researched in rough set theory.Many existing algorithms mainly aim at the reduction of discrete-valued attributes,very little work has been done for attribute reduction aiming to continuous-valued attributes.Therefore,in this paper,after introducing a new definition on consistency of objects,a novel model based on consistency criterion for attribute reduction is i... |
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| Keywords: | rough set attributes reduction consistency criterion |
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