1. Institute of Computing, Universidade Federal Fluminense, Niterói, Brazil
2. Computer Department, Federal Center for Technological Education Celso Suckow da Fonseca, Rio de Janeiro, Brazil
3. Graduate Program in Computer and Electrical Engineering, Rio Grande do Norte Federal University, Natal, Brazil
4. Université de Lille and CNRS CRIStAL Laboratory, Villeneuve d’Ascq, France