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  2012, Vol. 25 Issue (4): 709-720    DOI:
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Variable Multigranulation Rough Set Model
ZHANG Ming1,2 , TANG Zhen-Min1, XU Wei-Yan3, YANG Xi-Bei1,2
1.School of Computer Science and Technology,Nanjing University of Science and Technology, Nanjing 210094
2.School of Computer Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003
3.School of Mathematics and Physics,Jiangsu University of Science and Technology,Zhenjiang 212003

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Abstract  By analyzing the limitations of the optimistic multigranulation rough set and the pessimistic multigranulation rough set, the variable multigranulation rough set is proposed. The properties and measure relations of these kinds of rough sets are discussed. Furthermore, the acquisition of decision rules by the proposed variable multigranulation rough set is presented, and the heuristic algorithm of the attribute reduction based on the attribute significance is introduced. Finally, the experimental results show the effectiveness of the approach.
Key wordsVariable Multigranulation Rough Set      Granular Computing      Measure      Reduction     
Received: 11 January 2011     
ZTFLH: TP181  
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ZHANG Ming
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Cite this article:   
ZHANG Ming,TANG Zhen-Min,XU Wei-Yan等. Variable Multigranulation Rough Set Model[J]. , 2012, 25(4): 709-720.
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http://manu46.magtech.com.cn/Jweb_prai/EN/      OR     http://manu46.magtech.com.cn/Jweb_prai/EN/Y2012/V25/I4/709
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