Wen Gao Yong Rui Alan Hanjalic Changsheng Xu Eckehard G. Steinbach Abdulmotaleb El-Saddik Michelle X. Zhou Proceedings of the 17th International Conference on Multimedia 2009, Vancouver, British Columbia, Canada, October 19-24, 2009 978-1-60558-608-3 ACM Multimedia ACM 2009 db/conf/mm/mm2009.html http://dl.acm.org/citation.cfm?id=1631272