Telecom Bretagne at Image CLEF WikipediaMM 2010
Adrian Stefan Popescu, Département Informatique · 2010
Abstract. In this paper, I describe the approach proposed by Télécom Bretagne for the WikipediaMM 2010 evaluation campaign [6]. One of the main challenges in large scale image retrieval is the mismatch between query terms and image textual descriptions from the database. This mismatch can be reduced using query expansion and here I present a Wikipedia based query expansion approach. In order to boost results’ accuracy, the expansion is followed by a reranking step which uses query models extracted from Flickr. 1