Advances in Artificial Intelligence - IBERAMIA-SBIA 2006 2nd International Joint Conference, 10th Ibero-American Conference on AI, 18th Brazilian AI Symposium, Ribeirão Preto, Brazil, October 23-27, 2006. Proceedings - Sichman, Jaime Simão; Coelho, Helder; Rezende, Solange Oliveira (Springer Berlin Heidelberg, 2006)