edited by Carlos H. C. Ribeiro, Felipe M. G. Franca ; sponsored by Brazilian Computer Society (SBC), Special Interest Group of the International Neural Network Society in Brazil (SIG/INNS/BR) ; organized by COPPE/UFRJ, ILTC, ITA ; supported by CAPES, CNPq, EMBRAER S.A., FAPERJIEEE Computer Societyc2000