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| 可变粒度粗糙集 | |
| 引用本文： | 张明,唐振民,徐维艳,杨习贝.可变粒度粗糙集[J].计算机科学,2011,38(10):220-222. |
| 作者姓名： | 张明 唐振民 徐维艳 杨习贝 |
| 作者单位： | 1. 南京理工大学计算机科学与技术学院 南京210094;江苏科技大学计算机科学与工程学院 镇江212003 2. 南京理工大学计算机科学与技术学院 南京210094 3. 江苏科技大学数理学院 镇江212003 |
| 基金项目： | 国家自然科学基金重点项目(90820306); 中国博士后科学基金项目(20100481149)资助 |
| 摘 要： | 分析乐观多粒度粗糙集和悲观多粒度粗糙集的不足之后，提出一种可变粒度粗糙集模型，定义了可变粒度粗
糙集的下、上近似集，研究了可变粒度粗糙集与这两种多粒度粗糙集的性质，证明了可变粒度粗糙集是多粒度粗糙集
的泛化，最后给出几种可变粒度粗糙集的度量因子，研究了变粒度粗糙集与多粒度粗糙集度量之间的关系。 |
| 关 键 词： | 可变粒度粗糙集，多粒度粗糙集，度量 |
Variable Granulation Rough Set |
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| ZHANG Ming,TANG Zhen-min,XU Wei-yan,YANG Xi-bei.Variable Granulation Rough Set[J].Computer Science,2011,38(10):220-222. | |
| Authors: | ZHANG Ming TANG Zhen-min XU Wei-yan YANG Xi-bei |
| Affiliation: | (School of Computer Science and Technology, }anjing University of Science and "Technology, Nanjing 210094, China);(School of Computer Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China);(School of Mathematics and Physics,Jiangsu University of Science and Technology,Zhenjiang 212003,China) |
| Abstract: | By analyzing the weakness of optimistic Muitl-granulation rough set and pessimistic Muitl-granulation rough set, the Variable granulation rough set was proposed, the lower and the upper approximation were defined. Further- more, the properties of these three kinds of rough sets were discussed, and that the Variable granulation Rough Set is the generalization of Muitl-granulation rough set was proved. At last, some measures of those rough sets were defined, the relation of their measures was discussed. |
| Keywords: | Variable granulation rough set Muitl-granulation rough set Measure |
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