Ifriza, Yahya Nur, Ratna Nur Mustika Sanusi, Hendra Febriyanto, and Azlina Kamaruddin. 2025. “Optimization CatBoost Using GridSearchCV for Sentiment Analysis Customer Reviews in Digital Transportation Industry ”. TIERS Information Technology Journal 6 (2):205-16. https://doi.org/10.38043/tiers.v6i2.7201.