Computer Science ›› 2016, Vol. 43 ›› Issue (2): 83-85.doi: 10.11896/j.issn.1002-137X.2016.02.018

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Granularity Reduction of Variable Precision Pessimistic Multi-granulation Rough Set Based on Granularity Entropy of Lower Approximate Distribution

MENG Hui-li, MA Yuan-yuan and XU Jiu-cheng   

  • Online:2018-12-01 Published:2018-12-01

Abstract: The lower approximate distribution reduction was introduced into the variable precision pessimistic multi-granulation rough set.The granularity entropy of the lower approximate distribution of the variable precision pessimistic multi-granulation rough set was defined.The importance of a granularity was also defined based on the granularity entropy of the lower approximate distribution,and a heuristic granularity reduction algorithm of variable precision pessimistic multi-granulation rough set was presented.The experimental results show the validity of the algorithm.

Key words: Lower approximate distribution reduction,Granularity entropy of lower approximate distribution,Variable precision pessimistic multi-granulation rough set,Granularity reduction

[1] Pawlak Z.Rough set[J].International Journal of Computer and Information Science,1982,11:341-356
[2] Lin T Y.Granular computing on binary relations II:Rough set representations and belief functions[M]∥Rough Sets and Knowledge Discovery.1998:122-140
[3] Qian Yu-hua,Liang Ji-ye.Rough set method based on multi-granulations[C]∥Proceeding of the Fifth IEEE International Conference on Cognitive Informatics.Beijing,China,July 2006:297-304
[4] Qian Yu-hua,Liang Ji-ye,Yao Yi-yu,et al.MGRS:A multigra-nulation rough set[J].Information Sciences,2010,180:949-970
[5] Qian Yu-hua,Liang Ji-ye,Wei Wei.Pessimistic rough decision[C]∥Second International Workshop on Rough Sets Theory.2010:440-449
[6] Yang Xi-bei,Dou Hui-li,Yang Jing-yu.Hybird Multigranulation Rough Sets Based on Equivalence Relations[J].Computer Science,2012,0(11):165-169(in Chinese) 杨习贝,窦慧莉,杨静宇.基于等价关系的混合多粒度粗糙集[J].计算机科学,2012,0(11):165-169
[7] Zhang Ming,Tang Zhen-min,Xu Wei-yan,et al.Variable Multigranulation Rough Set Model[J].Pattern Recognition and Artificial Intelligence,2012,5(4):709-720(in Chinese) 张明,唐振民,徐维艳,等.可变多粒度粗糙集模型[J].模式识别与人工智能,2012,5(4):709-720
[8] Sang Yan-li,Qian Yu-hua.A Granular Space Reduction Ap-proach to Pessimistic Multi-Granulation Rough Sets[J].Pattern Recognition and Artificial Intelligence,2012,5(3):361-366(in Chinese) 桑妍丽,钱宇华.一种悲观多粒度粗糙集中的粒度约简算法[J].模式识别与人工智能,2012,5(3):361-366
[9] Liu Cai-hui.Covering-based Multigranulation Rough Set Model Based on Maximal Description of Elements[J].Computer Science,2013,0(12):64-67(in Chinese) 刘财辉.一种元素最大描述下的多粒度覆盖粗糙集模型[J].计算机科学,2013,40(12):64-67
[10] Qian Yu-hua,Zhang Hu,Sang Yan-li,et al.Multigranulation decision-theoretic rough sets[J].International Journal of Approximate Reasoning,2014,5(1):225-237
[11] Dou Hui-li,Wu Chen,Yang Xi-bei,et al.Variable PrecisionMultigranulation Rough Sets[J].Journal of Jiangsu University of Science and Technology,2012,6(1):65-69(in Chinese) 窦慧莉,吴陈,杨习贝,等.可变精度多粒度粗糙集模型[J].江苏科技大学学报,2012,26(1):65-69
[12] Zhai Yong-jian,Zhang Hong.Reduction of Variable PrecisionMulti-granulation Rough Sets[J].Journal of Jinling Institute of Technology,2013,9(4):1-8(in Chinese) 翟永健,张宏.变精度多粒度粗糙集的约简研究[J].金陵科技学院学报,2013,29(4):1-8
[13] Ziarko W.Variable precision rough set model[J].Journal ofComputer and System Sciences,1993,46(1):39-59
[14] Zhang Wen-xiu,Mi Ju-sheng,Wu Wei-zhi.Knowledge Reduc-tions in Inconsistent Information Systems[J].Chinese Journal of Computers,2003,6(1):12-18(in Chinese) 张文修,米据生,吴伟志.不协调目标信息系统的知识约简[J].计算机学报,2003,26(1):12-18

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