Structural, Syntactic, and Statistical Pattern Recognition Joint IAPR International Workshops, SSPR 2004 and SPR 2004, Lisbon, Portugal, August 18-20, 2004. Proceedings - Fred, Ana; Caelli, Terry M.; Duin, Robert P. W.; Campilho, Aurélio C.; de Ridder, Dick (Springer Berlin Heidelberg, 2004)