Osama El Demerdash Sabine Bergler Leila Kosseim P. Karen Langshaw Generating Adaptive Multimedia Presentations Based on a Semiotic Framework. 417-421 2005 conf/ai/2005 Canadian Conference on AI http://dx.doi.org/10.1007/11424918_44 db/conf/ai/ai2005.html#DemerdashBKL05