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Schema-Based Web Wrapping

  • Conference paper
Conceptual Modeling – ER 2004 (ER 2004)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 3288))

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Abstract

An effective solution to automate information integration is represented by wrappers, i.e. programs which are designed for extracting relevant contents from a particular information source, such as web pages. Wrappers allow such contents to be delivered through a self-describing and easily processable representation model. However, most existing approaches to wrapper designing focus mainly on how to generate extraction rules, while do not weigh the importance of specifying and exploiting the desired schema of the extracted information. In this paper, we propose a new wrapping approach which encompasses both extraction rules and the schema of required information in wrapper definitions. We investigate the advantages of suitably exploiting extraction schemata, and we define a clean declarative wrapper semantics by introducing (preferred) extraction models for source HTML documents with respect to a given wrapper.

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Author information

Authors and Affiliations

  1. DEIS, University of Calabria, Italy

    Sergio Flesca & Andrea Tagarelli

Authors
  1. Sergio Flesca
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  2. Andrea Tagarelli
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Editor information

Editors and Affiliations

  1. Informatica e Automazione, Università Roma Tre, Via Vasca Navale 79, 00146, Roma, Italy

    Paolo Atzeni

  2. Computer Science Department, University of California, 3731 Boelter Hall, 90095, Los Angeles, CA, USA

    Wesley Chu

  3. Department of Computer Science, Tsinghua University, 100084, Beijing, P.R. China

    Hongjun Lu

  4. Department of Computer Science and Engineering, Fudan University, 200433, China

    Shuigeng Zhou

  5. School of Computing, National University of Singapore,  

    Tok-Wang Ling

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© 2004 Springer-Verlag Berlin Heidelberg

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Flesca, S., Tagarelli, A. (2004). Schema-Based Web Wrapping. In: Atzeni, P., Chu, W., Lu, H., Zhou, S., Ling, TW. (eds) Conceptual Modeling – ER 2004. ER 2004. Lecture Notes in Computer Science, vol 3288. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30464-7_23

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  • DOI: https://doi.org/10.1007/978-3-540-30464-7_23

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-23723-5

  • Online ISBN: 978-3-540-30464-7

  • eBook Packages: Springer Book Archive

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