1. Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte (DCA-UFRN), Natal 59072-970, Brazil
2. Federal Institute of Education, Science and Technology of Rio Grande do Norte (IFRN), Natal 59015-300, Brazil
3. Department of Natural Sciences, Mathematics, and Statistics, Federal Rural University of Semi-Arid (DCME-UFERSA), Mossoró 59625-900, Brazil
4. School of Science & Technology, Federal University of Rio Grande do Norte (ECT-UFRN), Natal 59072-970, Brazil