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    » Expressive Power of Tree and String Based Wrappers
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    IJCAI
    2003
    103views Artificial Intelligence» more  IJCAI 2003»
    Expressive Power of Tree and String Based Wrappers
    13 years 5 months ago
    Expressive Power of Tree and String Based Wrappers
    Download  www.isi.edu
    There exist two types of wrappers: the string based wrapper such as the LR wrapper, and the tree based wrapper. A tree based wrapper designates extraction regions by nodes on the ...
    Daisuke Ikeda, Yasuhiro Yamada, Sachio Hirokawa
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    IJCAI
    2003
    120views Artificial Intelligence» more  IJCAI 2003»
    Information Extraction from Tree Documents by Learning Subtree Delimiters
    13 years 5 months ago
    Information Extraction from Tree Documents by Learning Subtree Delimiters
    Download  www.isi.edu
    Information extraction from HTML pages has been conventionally treated as plain text documents extended with HTML tags. However, the growing maturity and correct usage of HTML/XHT...
    Boris Chidlovskii
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    PODS
    2002
    ACM
    117views Database» more  PODS 2002»
    Monadic Datalog and the Expressive Power of Languages for Web Information Extraction
    14 years 4 months ago
    Monadic Datalog and the Expressive Power of Languages for Web Information Extraction
    Download  www.cs.cornell.edu
    Research on information extraction from Web pages (wrapping) has seen much activity in recent times (particularly systems implementations), but little work has been done on formal...
    Georg Gottlob, Christoph Koch
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    AAAI
    2006
    233views Intelligent Agents» more  AAAI 2006»
    Automatic Wrapper Generation Using Tree Matching and Partial Tree Alignment
    13 years 6 months ago
    Automatic Wrapper Generation Using Tree Matching and Partial Tree Alignment
    Download  www.aaai.org
    This paper is concerned with the problem of structured data extraction from Web pages. The objective of the research is to automatically segment data records in a page, extract da...
    Yanhong Zhai, Bing Liu
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    PODS
    2004
    ACM
    189views Database» more  PODS 2004»
    The Lixto Data Extraction Project - Back and Forth between Theory and Practice
    14 years 4 months ago
    The Lixto Data Extraction Project - Back and Forth between Theory and Practice
    Download  www.cs.cornell.edu
    We present the Lixto project, which is both a research project in database theory and a commercial enterprise that develops Web data extraction (wrapping) and Web service definiti...
    Georg Gottlob, Christoph Koch, Robert Baumgartner,...
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