Systematic Review of Artificial Intelligence-Based Techniques for Extracting Information from Unstructured Documents. Innovation & Development in Engineering and Applied Science, [S. l.], v. 8, n. 2, p. 29, 2026. DOI: 10.53358/ideas.v8i2.1354. Disponível em: https://revistasojs.utn.edu.ec/index.php/ideas/article/view/1354. Acesso em: 13 aug. 2026.