LIG at CLEF 2015 SBS Lab

Nawal Ould-Amer 1, 2, 3 Philippe Mulhem 2, 3 Mathias Géry 1
3 MRIM - Modélisation et Recherche d’Information Multimédia [Grenoble]
LIG - Laboratoire d'Informatique de Grenoble, Inria - Institut National de Recherche en Informatique et en Automatique
Abstract : This paper describes the work achieved by the MRIM research group of Grenoble, using some data from the LaHC of Saint-´ Etienne, in a way to test personalized retrieval of books for the Social Book Search Lab of CLEF 2015. Our proposal rely on a biased fusion of content-only retrieval, using BM25F and LGD retrieval models, user non-social profile based on the catalog of the requester, and social profiles using user/user links generated from their catalogs and ratings on books. The official results obtained show a clear positive impact of user profile, and a small positive impact of the social elements we used. Post official results that present non biased fusion scores are also presented.
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Submitted on : Friday, October 23, 2015 - 4:22:36 PM
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Nawal Ould-Amer, Philippe Mulhem, Mathias Géry. LIG at CLEF 2015 SBS Lab. Conference and Labs of the Evaluation Forum, Sep 2015, Toulouse, France. ⟨ujm-01219459⟩

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