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粗集理论的矩阵方法 被引量:22

The Matrix Approaches of Rough Sets
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摘要 粗糙集理论是近年来发展起来的一种有效的处理不精确、不确定信息的理论,在机器学习及数据挖掘等领域获得了成功的应用,该文用矩阵的方法来研究粗糙集,即从一个二元关系矩阵出发,给出粗糙集上下近似的矩阵描述,实际上是用矩阵的方法重新定义上下近似,矩阵的方法不仅提供了上下近似的简单的计算方法,也提供了一种新的推理的方法,我们还把矩阵方法用于信息系统的约简。 The theory of rough sets deals with the approximation of an arbitrary subset of a universe by two definable or observable subsets called lower and upper approximation.This paper studies some matrix properties of rough sets.The lower and upper approximation operators of rough sets are redefined using the matrix representation.Matrix approach provides an explicit formula for computing lower and upper approximations.The reduction of knowledge using matrix view is researched.The procedure enables us to eliminate all unnecessary knowledge from the knowledge base.
作者 雷晓蔚
出处 《计算机工程与应用》 CSCD 北大核心 2006年第17期73-75,共3页 Computer Engineering and Applications
关键词 粗糙集 上下近似 关系矩阵 信息系统 决策系统 rough set,lower and upper approximation,relation matrix,information system,decision system
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参考文献11

  • 1Z Pawlak.rough sets-theoretical aspects of reasoning about data[M].Kluwer academic publishers,1991.
  • 2Banerjee M,Pal S K.roughness of a fuzzy set[J].Information Sciences,1996; 93:235~246.
  • 3Y Y Yao.constructive and algebraic methods of the theory of rough sets[J].Information Sciences,1998; 119; (1~4):21~47.
  • 4Y Y Yao.two views of the theory of rough sets in finite universes[J].International Journal of approximate reasoning,1996; (15):291 ~317.
  • 5Y Y Yao,P J Lingras.interpretations of belief functions in the theory of rough sets[J].Information Sciences,1998; 104:81~106.
  • 6Nanda S,Majumdar S.fuzzy rough sets[J].Fuzzy sets and systems,1992 ;45:157~160.
  • 7R Intan,M Mukaidono.generalization of rough sets and its applications in information system[J].Intelligent Data Analysis,2002; 6:323~339.
  • 8T Y Lin,Liu Q.rough approximate operators:axiomatic rough set theory[C].In:Ziarko Wed.Rough sets,Fuzzy sets and Knowledge Discovery,Berlin,Springer,1994:256~260.
  • 9刘贵龙.模糊近似空间上的粗糙模糊集及其粗糙度[J].计算机科学,2002,29(9):144-146.
  • 10刘贵龙.模糊近似空间上的粗糙模糊集的公理系统[J].计算机学报,2004,27(9):1187-1191. 被引量:18

二级参考文献10

  • 1Banerjee M., Pal S.K.. Roughness of a fuzzy set. Information Sciences, 1996,93:235~246
  • 2Lin T.Y., Liu Q.. Rough approximate operators, axiomatic rough set theory. In: Ziarko W.P. ed.. Rough sets,Fuzzy sets and Knowledge Discovery. London: Springer-Verlag, 1994, 256~260
  • 3Li Hong-Xin, Wang Pei-Zhuang. Fuzzy Mathematics. Beijing: National Defence Industry Press,1994(in Chinese)(李洪兴,汪培庄. 模糊数学. 北京:国防工业出版社,1994)
  • 4Liu Qing. Rough Sets and Rough Reasoning. Beijing: Science Press, 2001(in Chinese)(刘清. Rough集及Rough推理. 北京:科学出版社,2001)
  • 5Lin T Y,Liu Q. Rough approximate operators, axiomatic rough set theory. In: Ziarko W P, ed. Rough sets , Fuzzy sets and Knowledge Discovery,London,Springer-Verlag, 1994. 256-260.
  • 6Yao Y Y,Wong S K M,Lin T Y. A review of rough set models, Rough set and data mining, Analysis for imprecise data, T, Y, Lin, N, Cercone, eds, Kluwer Academic Publishers. Boston, 1997, 47-75.
  • 7Banerjee M, Pal S K. Roughness of a fuzzy set. Information Sciences, 1996,93 : 235- 246.
  • 8刘贵龙.模糊近似空间上的粗糙模糊集及其粗糙度[J].计算机科学,2002,29(9):144-146.
  • 9祝峰,何华灿.粗集的公理化[J].计算机学报,2000,23(3):330-333. 被引量:51
  • 10孙辉,刘大有,李文.粗集公理组的极小化[J].计算机学报,2002,25(2):202-209. 被引量:14

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同被引文献146

引证文献22

二级引证文献50

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