Which Features Matter Most? Evaluating Numerical and Textual Features for Helpfulness Classification in Imbalance Dataset using XGBoost. Scientific Journal of Informatics, [S. l.], v. 12, n. 4, 2025. DOI: 10.15294/sji.v12i4.33443. Disponível em: https://journal.unnes.ac.id/journals/sji/article/view/33443. Acesso em: 17 jan. 2026.