PRASETYANINGRUM, PUTRI TAQWA; NORSHAHILA IBRAHIM; OZZI SURIA. Optimizing Sentiment Analysis of Hotel Reviews Using PCA and Machine Learning for Tourism Business Decision Support. Indonesian Journal of Information Systems, [S. l.], v. 8, n. 1, p. 36–49, 2025. DOI: 10.24002/ijis.v8i1.10978. Disponível em: https://ojs.uajy.ac.id/index.php/IJIS/article/view/10978. Acesso em: 23 jul. 2026.