Afzal Ballim Nastaran Fatemi Hatem Ghorbel Vincenzo Pallotta A knowledge-based approach to semi-automatic annotation of multimedia documents via user adaptation http://arxiv.org/abs/cs.DL/0410059 2004 CoRR cs.DL/0410059 db/journals/corr/corr0410.html#cs-DL-0410059 informal publication