| 数值和名义属性混合数据空间上的轮廓体查询方法 |
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| 引用本文： | 张忠平,夏炎,李立宁. 数值和名义属性混合数据空间上的轮廓体查询方法[J]. 小型微型计算机系统, 2011, 32(6): 1157-1163 |
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| 作者姓名： | 张忠平 夏炎 李立宁 |
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| 作者单位： | 燕山大学信息科学与工程学院计算机系,河北秦皇岛,066004 |
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| 基金项目： | 国家自然科学基金项目(60773100)资助; 河北省教育厅科研计划项目(2006143)资助 |
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| 摘 要： | 近年来,数值和名义属性混合数据空间上的轮廓查询仅局限在单个空间上进行,而实际应用中存在对不同子空间轮廓查询的需求.为此,本文结合IPO-tree Search半物化轮廓的方法,定义了半物化轮廓体的概念,提出通过共享子空间轮廓结果集及查询条件计算半物化轮廓体的算法SMS,并设计了存储半物化轮廓体的索引结构NNAS-tre...
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| 关 键 词： | 数值属性 名义属性 半物化轮廓体 SMS NNAS-tree |
Query Method for Skycube on the Data Space Mixed by Numeric and Nominal Attributes |
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| ZHANG Zhong-ping,XIA Yan,LI Li-ning. Query Method for Skycube on the Data Space Mixed by Numeric and Nominal Attributes[J]. Mini-micro Systems, 2011, 32(6): 1157-1163 |
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| Authors: | ZHANG Zhong-ping XIA Yan LI Li-ning |
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| Affiliation: | ZHANG Zhong-ping,XIA Yan,LI Li-ning(Information Science and Engineering Institute,Yanshan University,Qinhuangdao 066004,China) |
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| Abstract: | In recent years,the study of the skyline query on data space mixed by numeric and nominal attributes is only confined to proceed in a single space.However,there are many skyline queries demand for different sub-space in practical application.In order to satisfy the needs for different sub-space skyline queries,we combine with IPO-tree Search semi-materialization method and propose the concept of semi-materialization skycube.Moreover,algorithm SMS is presented to efficiently calculate the semi-materializatio... |
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| Keywords: | numeric attribute nominal attribute semi-materialization skycube numeric and nominal attributes skycube tree |
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