| 基于相似关系的变精度多粒度粗糙集 |
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| 引用本文： | 许韦. 基于相似关系的变精度多粒度粗糙集[J]. 科学技术与工程, 2013, 13(9): 2517-2522 |
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| 作者姓名： | 许韦 |
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| 作者单位： | 江苏科技大学计算机科学与工程学院 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 在不完备信息系统中基于相似关系,引入了可变精度和多粒度粗糙集,进而提出一种基于相似关系的变精度多粒度粗糙集模型。研究了基于相似关系的变精度多粒度粗糙集的相关性质和关系。随后讨论了基于相似关系变精度多粒度粗糙集的约简问题,提出了一种基于属性重要度的启发式分布约简算法,实例分析的结果验证了该方法的可行性。
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| 关 键 词： | 相似关系 多粒度粗糙集 变精度多粒度粗糙集 约简 |
| 收稿时间： | 2012-10-22 |
| 修稿时间： | 2012-12-27 |
Variable Precision Multi-granulation Rough Sets Based On Similarity Relation |
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| xuwei. Variable Precision Multi-granulation Rough Sets Based On Similarity Relation[J]. Science Technology and Engineering, 2013, 13(9): 2517-2522 |
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| Authors: | xuwei |
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| Affiliation: | 1,2(School of Computer Science and Technology,Jiangsu University of Science and Technology1,Zhenjiang 212003,P.R.China; School of Computer Science and Technology,Nanjing University of Science and Technology2,Nanjing 210094,P.R.China) |
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| Abstract: | By introducing the variable precision rough set and multi-granulations rough set in the incomplete information system, the variable precision Multi-granulation rough sets based on similarity relation is proposed, and the properties of variable precision multi-granulation approximation is discussed. Then, the reduction problem of the variable precision Multi-granulation rough sets based on similarity relation is discussed, and heuristic algorithm of the attribute reduction based on the significant attributes is proposed. Finally, results of the experiments show the effectiveness of the approach. |
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| Keywords: | Similarity relation Multi-granulation rough set Variable precision multi-granulations rough set Reduction |
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