MUHAMMAD AQEEL; QUTAB, Irfan; KHAWAR IQBAL; HABIBA FIAZ; HIRA AROOJ. Improving Roman Urdu Topic Classification through Custom Stemming and an SGD-Optimized Machine Learning Pipeline. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences, [S. l.], v. 62, n. 4, 2025. DOI: 10.53560/PPASA(62-4)845. Disponível em: https://www.ppaspk.org/index.php/PPAS-A/article/view/1247. Acesso em: 31 dec. 2025.