A formal comparison of visual web wrapper generators

Authors:
Georg Gottlob;Christoph Koch
Affiliations:
Database and Artificial Intelligence Group, Technische Universität Wien, Vienna, Austria;Lehrstuhl für Informationssysteme, Universität des Saarlandes, Saarbrücken, Germany
Venue:
SOFSEM'06 Proceedings of the 32nd conference on Current Trends in Theory and Practice of Computer Science
Year:
2006

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Abstract

We study the core fragment of the Elog wrapping language used in the Lixto system (a visual wrapper generator) and formally compare Elog to other wrapping languages proposed in the literature.