| 集值信息系统的粗糙集扩展模型 |
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| 引用本文： | 鲍忠奎,杨善林.集值信息系统的粗糙集扩展模型[J].计算机工程与应用,2011,35(35):22-24. |
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| 作者姓名： | 鲍忠奎 杨善林 |
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| 作者单位： | 1. 合肥工业大学管理学院,合肥230009;安徽大学数学科学学院,合肥230601
2. 合肥工业大学管理学院,合肥,230009 |
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| 基金项目： | 国家自然科学基金(No.71071045); 国家高技术研究发展计划(863)(No.2008AA042901)~~ |
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| 摘 要： | 通过分析研究现有集值信息系统下定义的二元关系,基于集合包含度在集值信息系统中引入相似度概念,定义了一种基于相似度的α-相容关系,提出基于α-相容关系的粗糙集扩展模型,并分析比较了该模型与现有粗糙集扩展模型之间的关系。最后,给出实例加以验证。
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| 关 键 词： | 集值信息系统 粗糙集 相似度 α-相容关系 |
| 修稿时间： | |
Extended rough set model in set-valued information systems |
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| BAO Zhongkui
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YANG Shanlin.Extended rough set model in set-valued information systems[J].Computer Engineering and Applications,2011,35(35):22-24. |
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| Authors: | BAO Zhongkui YANG Shanlin |
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| Affiliation: | BAO Zhongkui1,2,YANG Shanlin11.School of Management,Hefei University of Technology,Hefei 230009,China 2.School of Mathematical Sciences,Anhui University,Hefei 230601,China |
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| Abstract: | Kinds of relations in the classical set-valued information systems are analyzed.Based on set inclusion degree,the concept of tolerance degree is introduced in set-valued information systems, and then a tolerance relation based on tolerance degree is defined.An extension model of rough set based on a-tolerance relation is proposed,then the relations between this extension model and classical models are compared.Finally,an illustrative example is analyzed. |
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| Keywords: | set-valued information systems rough set tolerance degree a -tolerance relation |
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