Marin Ferecatu Nozha Boujemaa Michel Crucianu Semantic interactive image retrieval combining visual and conceptual content description. 309-322 2008 13 Multimedia Syst. 5-6 http://dx.doi.org/10.1007/s00530-007-0094-9 db/journals/mms/mms13.html#FerecatuBC08