Fusion: Practice and Applications FPA 2692-4048 2770-0070 10.54216/FPA https://www.americaspg.com/journals/show/2692 2018 2018 Faculty of Computer Science and Information Technology, Universiti Tun Hussein Onn, MALAYSIA; Faculty of Computer Science and Information Technology, Universiti Tun Hussein Onn, Malaysia Noor Noor Faculty of Computer Science and Information Technology, Universiti Tun Hussein Onn, Malaysia Noor Zuraidin M. Safar Informatic Engineering Department, Faculty of Computer Science, Universitas Dian Nuswantoro, Semarang, Indonesia Catur Supriyanto This study explores the enhancement of accuracy in Indonesian sentiment analysis by incorporating text segmentation features during the pre-processing phase. One of the most important steps in creating a high-quality Bag of Words is to separate Indonesian sentences with no spacing, which is made possible by the created text segmentation algorithm. Through the conducted observations and analyses, it was observed that text comments from social media frequently exhibit connected sentences without spacing. The segmentation process was developed through a matching model utilizing a standard Indonesian word dictionary. Implementation involved testing Indonesian text data related to COVID-19 management, resulting in a substantial increase of 3,036 features. The Bag of Words was then constructed using the Term Frequency-Inverse Document Frequency method. Subsequently, sentiment analysis classification testing was conducted using both deep learning and machine learning models to assess data quality and accuracy. The sentiment analysis accuracy for applying Deep Learning, Support Vector Machine and Naive Bayes is 86.46%, 88.02% and 86.19% respectively. 2024 2024 145 154 10.54216/FPA.150213 https://www.americaspg.com/articleinfo/3/show/2692