- 2012
- P. H. E. Oliveira, F. B. L. Neto, and R. A. M. Melo, "Computational application of semiotic principles in intensive care units," in 2012 Fourth World Congress on Nature and Biologically Inspired Computing (NaBIC), 2012, pp. 37-43.
- D. M. L. Martins, "Proposal for a decision support system for shopping based on computational semiotics." Technical Report, Computer Engineering, Polytechnic School of Pernambuco, UPE, Recife, PE, p. 50, 2012.
- 2009
- R. C. de Barros, "Preliminary studies of the semeiose automatic perception subsystem intelligent agents." Technical Report, Computer Engineering, Polytechnic School of Pernambuco, UPE, Recife, PE, p. 58, 2009.