KHAN, K.; ULLAH, A.; BAHARUDIN, B. Pattern and semantic analysis to improve unsupervised techniques for opinion target identification. Kuwait Journal of Science, [S. l.], v. 43, n. 1, 2016. Disponível em: https://journalskuwait.org/kjs/index.php/KJS/article/view/371. Acesso em: 24 apr. 2026.