| 集值决策系统中粗糙集理论与知识约简 |
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| 引用本文： | 朱军,朱士高.集值决策系统中粗糙集理论与知识约简[J].淮阴工学院学报,2008,17(3):14-17. |
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| 作者姓名： | 朱军 朱士高 |
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| 作者单位： | 江苏财经职业技术学院,计算机工程系,江苏,淮安,223003 |
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| 摘 要： | 以集值决策系统为研究对象,根据偏序关系讨论了知识约简问题。提出了近似分布约简的概念,并给出了相应的判定定理与辨识公式,最后用一个实例说明了此方法的有效性。
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| 关 键 词： | 集值决策系统 粗糙集 知识约简 近似分布约简 |
Rough Set and Knowledge Reduction in Set- valued Decision System |
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| ZHU Jun,ZHU Shi-gao.Rough Set and Knowledge Reduction in Set- valued Decision System[J].Journal of Huaiyin Institute of Technology,2008,17(3):14-17. |
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| Authors: | ZHU Jun ZHU Shi-gao |
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| Affiliation: | ZHU Jun, ZHU Shi-gao (Department of Computer Engineering, Jiangsu Vocational and Technical College of Finance ＆ Economics, Huai＇an Jiangsu 223003, China) |
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| Abstract: | In this paper,the set-valued decision system is deeply investigated by rough set technique.In such systems,approach to knowledge reduction is studied based on the preference-ordered relation.The concepts of lower and upper approximate distribution reduction are introduced into the set-valued decision system.The judgment theorems and discernibility formulas associated with these reductions are presented.Finally,an illustrative example is used to show the validity of these reducts. |
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| Keywords: | set-valued decision system rough set knowledge reduction approximate distribution reduction |
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