| 覆盖决策信息系统的约简 |
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| 引用本文： | 许晴媛,李进金,张燕兰. 覆盖决策信息系统的约简[J]. 山东大学学报(理学版), 2010, 45(1): 89-93 |
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| 作者姓名： | 许晴媛 李进金 张燕兰 |
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| 作者单位： | 1. 漳州师范学院计算机系,福建,漳州,363000
2. 漳州师范学院数学与信息科学系,福建,漳州,363000 |
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| 基金项目： | 国家自然科学基金，福建省科技计划项目，福建省教育厅科技项目，漳州师范学院科学研究基金 |
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| 摘 要： | 利用集合之间的包含度概念,讨论了覆盖决策信息系统的覆盖决策约简、覆盖分布约简、最大覆盖分布约简之间的关系,讨论了不协调覆盖决策信息系统中覆盖上、下近似约简的刻画及它们与覆盖分布约简、最大覆盖分布约简之间的关系。这些结果推广和深化了决策信息系统约简理论。
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| 关 键 词： | 包含度 覆盖决策信息系统 约简 |
| 收稿时间： | 2009-01-21 |
Reductions about covering decision information system |
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| XU Qing-yuan,LI Jin-jin,ZHANG Yan-lan. Reductions about covering decision information system[J]. Journal of Shandong University, 2010, 45(1): 89-93 |
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| Authors: | XU Qing-yuan LI Jin-jin ZHANG Yan-lan |
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| Affiliation: | XU Qing-Yuan, ZHANG Yan-Lan:Department of Computer Science and Engineering, Zhangzhou Normal University,Zhangzhou 363000, Fujian, China; LI Jin-Jin:Department of Mathematics, Zhangzhou Normal University, Zhangzhou 363000, Fujian, China |
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| Abstract: | By using inclusion degree between sets, the relationships among covering decision reduction, covering distribution reduction and the largest covering distribution reduction about covering decision information system are discussed. Also the characterizations of covering upper and lower approximation reduction about inconsistent covering decision information system and their relationships to covering distribution reduction and the largest covering distribution reduction are studied. The results generalize and deepen the reduction theories of decision information system. |
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| Keywords: | inclusion degree covering decision information system reduction |
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