网页数据抽取中Wrapper的维护

Wrapper Maintenance During Web Data Extracting

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摘要当网页结构发生动态变化时,所构建的网页数据抽取器Wrapper往往会失灵.为了解决这一问题,提出了Wrapper维护模型结构.实验证明,当网页数据结构发生变化时,该模型结构能更有效地支持网页数据的抽取. Currently when the web page structure experiences dynamic change,the web data extraction devices often fail to work.In order to solve the problem,Wrapper maintenance model is proposed.Experimental comparison shows that this model could more effectively help web data extraction when data structure is different.

作者邓莎莎李嘉

机构地区上海电力学院计算机与信息工程学院华东理工大学商学院

出处《上海电力学院学报》 CAS 2011年第4期378-382,共5页 Journal of Shanghai University of Electric Power

关键词 Wrapper维护网页数据抽取语义块 Wrapper maintenance web data extracting semantic block

分类号 N37 [自然科学总论]

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参考文献6

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二级参考文献12

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共引文献3

1赵赛,陈松乔,邓莎莎.基于规则树的Web数据集成包装器的设计与实现[J].计算机技术与发展,2006,16(6):242-244.
2李石君,于俊清,欧伟杰.基于HTML模式代数的Web信息提取方法[J].计算机研究与发展,2006,43(9):1644-1650. 被引量：8
3LIU Wei LIN Can MENG Xiaofeng.Web Database Query Interface Annotation Based on User Collaboration[J].Wuhan University Journal of Natural Sciences,2006,11(5):1403-1406.

1邓莎莎,杜明干.电子政务数据集成系统中数据模式的研究[J].上海电力学院学报,2007,23(1):41-44.

上海电力学院学报

2011年第4期

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网页数据抽取中Wrapper的维护

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