The Ninth Brazilian Symposium on Neural Networks, SBRN 2006 October 23-27, 2006, Ribeirao Preto, SP, Brazil / edited by Anne M.P. Canuto, Marcilio C.P. de Souto, Antonio C. Roque da Silva ; sponsored by Brazilian Computer Society (SBC), Special Interest Group of the International Neural Network Society in Brazil (SIG/INNS/BR) ; organized by ICMC/USP-Sao Carlos and FFCLRP/USP-Ribeirao Preto ; supported by CAPES, CNPq, FAPESP. - Canuto, Anne M. P.; Souto, Marcilio C. P. de; Silva, Antonio C. Roque da (IEEE Computer Society, 2006)