%0 Conference Proceedings %T LIG at CLEF 2015 SBS Lab %+ Laboratoire Hubert Curien (LHC) %+ Laboratoire d'Informatique de Grenoble (LIG) %+ Modélisation et Recherche d’Information Multimédia [Grenoble] (MRIM) %A Ould-Amer, Nawal %A Mulhem, Philippe %A Géry, Mathias %< avec comité de lecture %( Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum %B Conference and Labs of the Evaluation Forum %C Toulouse, France %8 2015-09-08 %D 2015 %K user profile %K social links %K Fusion of scores %Z Computer Science [cs]/Information Retrieval [cs.IR]Conference papers %X 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. %G English %2 https://ujm.hal.science/ujm-01219459/document %2 https://ujm.hal.science/ujm-01219459/file/LIG-SBS_final.pdf %L ujm-01219459 %U https://ujm.hal.science/ujm-01219459 %~ UNIV-ST-ETIENNE %~ IOGS %~ UGA %~ CNRS %~ UNIV-GRENOBLE1 %~ UNIV-PMF_GRENOBLE %~ INPG %~ LAHC %~ LIG %~ PARISTECH %~ LIG_TDCGE_MRIM %~ UDL %~ LIG_SIDCH