Gesellschaft für Informatik e.V.

Lecture Notes in Informatics

Datenbanksysteme in Business, Technologie und Web (BTW 2007) P-103, 475-485 (2007).



Alfons Kemper (ed.), Harald Schöning (ed.), Thomas Rose (ed.), Matthias Jarke (ed.), Thomas Seidl (ed.), Christoph Quix (ed.), Christoph Brochhaus (ed.)


Topx - efficient and versatile top-k query processing for text, semistructured, and structured data

Martin Theobald , Ralf Schenkel and Gerhard Weikum


This paper presents a comprehensive overview of the TopX search engine, an extensive framework for unified indexing and querying large collections of unstructured, semistructured, and structured data. Residing at the very synapse of database (DB) engineering and information retrieval (IR), it integrates efficient scheduling algorithms for top-k-style ranked retrieval with powerful scoring models, as well as dynamic and self-throttling query expansion facilities.

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ISBN 978-3-88579-197-3

Last changed 04.10.2013 18:13:35