| 基于下近似分布粒度熵的变精度悲观多粒度粗糙集粒度约简 |
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| 引用本文： | 孟慧丽,马媛媛,徐久成.基于下近似分布粒度熵的变精度悲观多粒度粗糙集粒度约简[J].计算机科学,2016,43(2):83-85, 104. |
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| 作者姓名： | 孟慧丽 马媛媛 徐久成 |
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| 作者单位： | 河南师范大学计算机与信息工程学院 新乡453007 河南省高校计算智能与数据挖掘工程技术研究中心 新乡453007 智慧商务与物联网技术河南省工程实验室 新乡453007,河南师范大学计算机与信息工程学院 新乡453007 河南省高校计算智能与数据挖掘工程技术研究中心 新乡453007 智慧商务与物联网技术河南省工程实验室 新乡453007,河南师范大学计算机与信息工程学院 新乡453007 河南省高校计算智能与数据挖掘工程技术研究中心 新乡453007 智慧商务与物联网技术河南省工程实验室 新乡453007 |
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| 基金项目： | 本文受国家自然科学基金项目(60873104,9),河南省科技攻关重点项目(112102210194),河南省教育厅自然科学研究项目(2011A520054)资助 |
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| 摘 要： | 将下近似分布约简引入变精度悲观多粒度粗糙集,定义了变精度悲观多粒度粗糙集的下近似分布粒度熵,基于下近似分布粒度熵定义了变精度悲观多粒度粗糙集粒度的重要度,并设计了基于下近似分布粒度熵的悲观多粒度粗糙集启发式粒度约简算法,通过实例验证了算法的有效性。
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| 关 键 词： | 下近似分布约简 下近似分布粒度熵 变精度悲观多粒度粗糙集 粒度约简 |
| 收稿时间： | 2015/5/11 0:00:00 |
| 修稿时间： | 2015/6/29 0:00:00 |
Granularity Reduction of Variable Precision Pessimistic Multi-granulation Rough Set Based on Granularity Entropy of Lower Approximate Distribution |
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| MENG Hui-li,MA Yuan-yuan and XU Jiu-cheng.Granularity Reduction of Variable Precision Pessimistic Multi-granulation Rough Set Based on Granularity Entropy of Lower Approximate Distribution[J].Computer Science,2016,43(2):83-85, 104. |
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| Authors: | MENG Hui-li MA Yuan-yuan and XU Jiu-cheng |
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| Affiliation: | College of Computer & Information Engineering,Henan Normal University,Xinxiang 453007,China Engineering Technology Research Center for Computing Intelligence & Data Mining of Henan Province,Xinxiang 453007,China Engineering Lab of Intelligence Business & Internet of Things of Henan Province,Xinxiang 453007,China,College of Computer & Information Engineering,Henan Normal University,Xinxiang 453007,China Engineering Technology Research Center for Computing Intelligence & Data Mining of Henan Province,Xinxiang 453007,China Engineering Lab of Intelligence Business & Internet of Things of Henan Province,Xinxiang 453007,China and College of Computer & Information Engineering,Henan Normal University,Xinxiang 453007,China Engineering Technology Research Center for Computing Intelligence & Data Mining of Henan Province,Xinxiang 453007,China Engineering Lab of Intelligence Business & Internet of Things of Henan Province,Xinxiang 453007,China |
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| 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. |
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| Keywords: | Lower approximate distribution reduction Granularity entropy of lower approximate distribution Variable precision pessimistic multi-granulation rough set Granularity reduction |
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