Learning Logic Wrappers for Information Extraction from the Web

Authors:
Costin Badica;Elvira Popescu;Amelia Badica
Affiliations:
University of Craiova;University of Craiova;University of Craiova
Venue:
SAINT-W '05 Proceedings of the 2005 Symposium on Applications and the Internet Workshops
Year:
2005

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Abstract

This paper discusses a methodology for applying general-purpose first-order inductive learning to extract information from Web documents structured as unranked ordered trees. The methodology is applied to information extraction from real-world HTML page sets that represent product information sheets, an important task in product data integration. The methodology addresses the problems of defining information extraction rules in the form of logic wrappers and mapping the task of learning these rules to general purpose first-order inductive learning.