Zeitschrift International Journal of Multimedia Information Retrieval Ausgabe 4/2012 Inhaltsverzeichnis ( 5 Artikel ) 01.12.2012 | Trends and Surveys | Ausgabe 4/2012 Cost-sensitive learning in social image tagging: review, new ideas and evaluation Zhenyang Li, Michael S. Lew 01.12.2012 | Regular Paper | Ausgabe 4/2012 Video concept detection by audio-visual grouplets Wei Jiang, Alexander C. Loui 01.12.2012 | Regular Paper | Ausgabe 4/2012 Fast shape retrieval using a graph theoretic approach Chunyuan Li, A. Ben Hamza 01.12.2012 | Regular Paper | Ausgabe 4/2012 Acquisition of multimedia ontology: an application in preservation of cultural heritage Anupama Mallik, Santanu Chaudhury 01.12.2012 | Regular Paper | Ausgabe 4/2012 Leveraging visual concepts and query performance prediction for semantic-theme-based video retrieval Stevan Rudinac, Martha Larson, Alan Hanjalic