| 优势关系下的多粒度粗糙集 |
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| 引用本文： | 李气芳,李进金,林国平.优势关系下的多粒度粗糙集[J].计算机工程与应用,2012,48(17):53-57,62. |
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| 作者姓名： | 李气芳 李进金 林国平 |
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| 作者单位： | 漳州师范学院数学与信息科学系,福建漳州,363000 |
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| 摘 要： | 从粒计算的角度,经典的粗糙集是建立在单一的粒(等价关系)上的,把它推广到建立在优势关系上的多粒度粗糙集,定义了多粒度下的上下近似。通过对经典粗糙集的比较,得到了二粒度和多粒度下粗糙集的一些性质和结论。并在二粒度和多粒度下,对粗糙集里的边界、近似精度、优势度和综合优势度进行了研究。通过地震数据的例子说明了单粒度和多粒度之间的差异。
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| 关 键 词： | 优势关系 多粒度 粗糙集 近似精度 优势度 |
Multi-granulation rough set based on dominance relation |
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| LI Qifang
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LI Jinjin
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LIN Guoping.Multi-granulation rough set based on dominance relation[J].Computer Engineering and Applications,2012,48(17):53-57,62. |
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| Authors: | LI Qifang LI Jinjin LIN Guoping |
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| Affiliation: | Department of Mathematic and Information Science,Zhangzhou Normal University,Zhangzhou,Fujian 363000,China |
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| Abstract: | The classical rough set is based on single granulation(equivalence relation)from the perspective of granular computing,It is extended to the multi-granulation rough set based on dominance relation,and the approximate upper and lower are defined.By comparison of the classical rough set,more properties and conclusions based on two-granulation and multi-granulation are got.And the boundary,approximate accuracy,dominance measure,general dominance measure in rough set are studied.Some examples of seismic data are given to illustrate the differences between single-granulation and multi-granulation. |
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| Keywords: | dominance relation multi-granulation rough set approximate accuracy dominance measure |
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