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Automatic Wrapper Generation for Multilingual Web Resources

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Discovery Science (DS 2002)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 2534))

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Abstract

We present a wrapper generation system to extract contents of semi-structured documents which contain instances of a record. The generation is done automatically using general assumptions on the structure of instances. It outputs a set of pairs of left and right delimiters surrounding instances of a field. In addition to input documents, our system also receives a set of symbols with which a delimiter must begin or end. Our system treats semi-structured documents just as strings so that it does not depend on markup and natural languages. It does not require any training examples which show where instances are. We show experimental results on both static and dynamic pages which are gathered from 13 Web sites, markuped in HTML or XML, and written in four natural languages. In addition to usual contents, generated wrappers extract useful information hidden in comments or tags which are ignored by other wrapper generation algorithms. Some generated delimiters contain whitespaces or multibyte characters.

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Author information

Authors and Affiliations

  1. Graduate School of Information Science and Electrical Engineering, Kyushu University, 812-8581, Fukuoka, Japan

    Yasuhiro Yamada

  2. Computing and Communications Center, Kyushu University, 812-8581, Fukuoka, Japan

    Daisuke Ikeda & Sachio Hirokawa

Authors
  1. Yasuhiro Yamada
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  2. Daisuke Ikeda
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  3. Sachio Hirokawa
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Editor information

Editors and Affiliations

  1. Deutsches Forschungszentrum für Künstliche Intelligenz, Stuhlsatzenhausweg 3, 66123, Saarbrücken, Germany

    Steffen Lange

  2. National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, 101-8430, Tokyo, Japan

    Ken Satoh

  3. Department of Computer Science, University of Maryland, College Park, 20742, Maryland, MD, USA

    Carl H. Smith

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© 2002 Springer-Verlag Berlin Heidelberg

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Yamada, Y., Ikeda, D., Hirokawa, S. (2002). Automatic Wrapper Generation for Multilingual Web Resources. In: Lange, S., Satoh, K., Smith, C.H. (eds) Discovery Science. DS 2002. Lecture Notes in Computer Science, vol 2534. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-36182-0_33

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  • DOI: https://doi.org/10.1007/3-540-36182-0_33

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-00188-1

  • Online ISBN: 978-3-540-36182-4

  • eBook Packages: Springer Book Archive

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