| 属性集的有限闭包和有限依赖基算法 |
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| 引用本文： | 李艳娟,郝忠孝. 属性集的有限闭包和有限依赖基算法[J]. 哈尔滨理工大学学报, 2005, 10(2): 19-22 |
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| 作者姓名： | 李艳娟 郝忠孝 |
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| 作者单位： | 哈尔滨理工大学,计算机与控制学院,黑龙江,哈尔滨,150080;哈尔滨理工大学,计算机与控制学院,黑龙江,哈尔滨,150080 |
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| 摘 要： | 本文定义了时态类型集的强封闭集、属性集的有限闭包、属性集在给定时态类型上的有限依赖基、属性集的有限依赖基等概念．给出了求属性集的有限闭包和有限依赖基的算法，并对算法的可终止性、正确性进行了证明，对时间复杂度进行了分析．
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| 关 键 词： | 时态数据库 有限闭包 有限依赖基 成员籍 |
| 文章编号： | 1007-2683(2005)02-0019-04 |
| 修稿时间： | 2004-10-15 |
Algorithm of Finite Closure and Finite Dependency Base of Attribution Sets |
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| LI Yan-juan,HAO Zhong-xiao. Algorithm of Finite Closure and Finite Dependency Base of Attribution Sets[J]. Journal of Harbin University of Science and Technology, 2005, 10(2): 19-22 |
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| Authors: | LI Yan-juan HAO Zhong-xiao |
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| Abstract: | In this paper, strong close set of set of temporal types, finite closure of attribution sets, finite dependency base of attribution sets based on a certain temporal type and finite dependency base of attribution sets are introduced; the algorithm of finite closure and finite dependency base of attribution sets and the proof for its termination and correction are given. |
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| Keywords: | temporal database finite closure finite dependency base membership |
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