English character recognition algorithm by improving the weights of MLP neural network with dragonfly algorithm. Periodicals of Engineering and Natural Sciences, [S. l.], v. 9, n. 2, p. 616–628, 2021. DOI: 10.21533/pen.v9.i2.767. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/767. Acesso em: 10 jun. 2026.