• SBAC-PAD 2004 - 16th Symposium on Computer Architecture and High Performance Computing - Foz do Iguaçu - PR - Brazil
  October 27-29, 2004.
• WOB 2004 - Third Brazillian Workshop on Bioinformatics - Brasília - DF - Brazil, October 20-22, 2004.
  
• GRACO 2005 - II Brazilian Symposium on Graphs, Algorithms and Combinatorics, April 27-29, 2005, Rio de Janeiro, Brazil.