05736148

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05736148 Stecher, Rodolfo Costache, Stefania Nieder\'ee, Claudia Nejdl, Wolfgang Query ranking in information integration. Pernici, Barbara (ed.), Advanced information systems engineering. 22nd international conference, CAiSE 2010, Hammamet, Tunisia, June 7--9, 2010. Proceedings. Berlin: Springer (ISBN 978-3-642-13093-9/pbk). Lecture Notes in Computer Science 6051, 230-235 (2010). 2010 Berlin: Springer EN Query Ranking Information Systems Query Relaxation

doi:10.1007/978-3-642-13094-6_19

Summary: Given the growing number of structured and evolving online repositories, the need for lightweight information integration has increased in the past years. We have developed an integration approach which relies on partial mappings for query rewriting and combines them with a controlled way of relaxation. In this paper we propose a novel approach for ranking results of such rewritten and relaxed queries over different sources, by punishing lack of confidence in mappings used for rewriting, as well as punishing higher degrees of controlled relaxation introduced, and present the performed evaluation.