Stanislav Barton Vlastislav Dohnal Jan Sedmidubský Pavel Zezula Building self-organized image retrieval network. 51-58 2008 LSDS-IR http://doi.acm.org/10.1145/1458469.1458474 conf/cikm/2008lsdsir db/conf/cikm/lsdsir2008.html#BartonDSZ08