Gabriela Csurka Stéphane Clinchant Adrian Popescu XRCE's Participation at Wikipedia Retrieval of ImageCLEF 2011. 2011 CLEF (Notebook Papers/Labs/Workshop) http://clef2011.org/resources/proceedings/Csurka_Image_Wikipedia_Clef2011.pdf conf/clef/2011w db/conf/clef/clef2011w.html#CsurkaCP11