| 一种可行的Web数据抽取包装器的设计方法 |
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| 引用本文： | 李宏伟,史培中,张素智. 一种可行的Web数据抽取包装器的设计方法[J]. 计算机应用与软件, 2009, 26(3) |
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| 作者姓名： | 李宏伟 史培中 张素智 |
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| 作者单位： | 郑州轻工业学院计算机与通信工程学院,河南,郑州,450002 |
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| 摘 要： | Web包装器是根据特定的抽取规则从特定的Web数据源执行数据抽取程序,设计Web包装器是Web信息抽取和集成的关键技术.针对网页结构的不确定性和易变性,详细阐述了一种基于预定义模式的Web包装器的设计与实现过程,并选取了几个出版社的新书发布Web页面进行了数据抽取验证和抽取结果分析,取得了较好的效果.充分体现了此Web包装器的可行性,并具有一定的高效性及可维护性,能够应用在基于Wrapper/Mediator方法的Web数据集成.
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| 关 键 词： | 包装器 抽取规则 信息抽取 Web数据集成 |
A PRACTICAL DESIGNING METHOD FOR THE WRAPPER OF WEB DATA EXTRACTION |
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| LI Hongwei,SHI Peizhong,ZHANG Suzhi. A PRACTICAL DESIGNING METHOD FOR THE WRAPPER OF WEB DATA EXTRACTION[J]. Computer Applications and Software, 2009, 26(3) |
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| Authors: | LI Hongwei SHI Peizhong ZHANG Suzhi |
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| Affiliation: | College of Computer and Communication Engineering;Zhengzhou University of Light Industry;Zhengzhou 450002;Henan;China |
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| Abstract: | Web Wrapper is a program extracting the data from given Web sources according to corresponding extraction rules of them.Its design is a key technology for Web information extraction and integration.Confronted with the uncertainty and variability of Web pages' structure,in this paper it elucidates the design and implementation process of a kind of the Web Wrapper which is based on pre-defined schema,and validates the data extraction from the Web pages of some publishers with information of new books releasin... |
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| Keywords: | Wrapper Extraction rule Information extraction Web data integration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
