| 基于语义的通用数据抽取方法 |
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| 引用本文： | 张建英,孙永洁,王秀坤.基于语义的通用数据抽取方法[J].计算机科学,2010,37(3):178-181. |
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| 作者姓名： | 张建英 孙永洁 王秀坤 |
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| 作者单位： | 大连理工大学计算机科学与工程系,大连,116024 |
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| 基金项目： | 国家自然科学基金(60873054)资助 |
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| 摘 要： | 关系数据库可以看作是元组以及外键关系构成的有向图。为便于数据复制以及共享,在进行数据抽取时,往往既要使语义上相关的数据一起抽取,又要使得抽取的数据尽量逻辑上独立。将多根树作为语义上相关、逻辑独立的数据集,给出了关系数据抽取方法并进行了实现。在Oracle中,使用TPC-C数据库结构对该方法进行了测试与分析,从而验证了算法的有效性和通用性。
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| 关 键 词： | 多根树 语义相关 数据抽取 |
| 收稿时间： | 2009/5/14 0:00:00 |
| 修稿时间： | 2009/8/14 0:00:00 |
Generic&Semantic-based Data Extraction Approach |
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| ZHANG Jian-ying,SUN Yong-jie,WANG Xiu-kun.Generic&Semantic-based Data Extraction Approach[J].Computer Science,2010,37(3):178-181. |
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| Authors: | ZHANG Jian-ying SUN Yong-jie WANG Xiu-kun |
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| Affiliation: | Department of Computer Science and Engineering/a>;Dalian University of Technology/a>;Dalian 116024/a>;China |
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| Abstract: | A relational database can be viewed as a directed graph constructed by tuples and foreign key references.To facilitate data replication and sharing,semantic-relativity and logically independence should be satisfied when relational data is extracted.Multi-tree structures are employed as clusters of such data extracted from a relational database in this paper.Then the corresponding data extraction approach was proposed and implemented.We evaluated the extraction algorithm on a TPC-C database in Oracle,demonst... |
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| Keywords: | Multi-tree Semantic-related Data extraction |
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