UJM at INEX 2009 ad hoc track

Authors:
Mathias Géry;Christine Largeron
Affiliations:
Université de Lyon, Saint-Étienne, France and CNRS, UMR, Laboratoire Hubert Curien, Université de Saint-Étienne Jean Monnet, France;Université de Lyon, Saint-Étienne, France and CNRS, UMR, Laboratoire Hubert Curien, Université de Saint-Étienne Jean Monnet, France
Venue:
INEX'09 Proceedings of the Focused retrieval and evaluation, and 8th international conference on Initiative for the evaluation of XML retrieval
Year:
2009

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Abstract

This paper presents our participation to the INEX 2009 Ad-Hoc track. We have experimented the tuning of various parameters using a "training" collection (i.e. INEX 2008) quite different than the "testing" collection used for 2009 INEX Ad-Hoc track. Several parameters have been studied for article retrieval as well as for element retrieval, especially the two main BM25 weighting function parameters: b and k1.