SHIN-JYE LEE. A Brief Concept of Natural Language Processing: The Chomsky Hierarchy and Hidden Markov Models. iJournals:International Journal of Software & Hardware Research in Engineering ISSN:2347-4890, [S. l.], v. 9, n. 6, 2021. DOI: 10.26821/IJSHRE.9.6.2021.9614. Disponível em: https://ijournals.in/journal/index.php/ijshre/article/view/40. Acesso em: 9 may. 2026.