Universitas Negeri Surabaya

The study collected user reviews of the EV Charging/SPKLU feature in PLN Mobile from Google Play Store, labeled sentiment using ratings as weak labels, applied algorithm-specific class weighting on the training data to address class imbalance, and compared seven classifiers—Logistic Regression, SVM, Naive Bayes, MLP, RNN, BiLSTM, and DistilBERT—finding that MLP achieved the highest validation macro F1 (67.80%) and was selected for final testing, where it reached 89.16% accuracy and 59.42% macro F1 on 286 test instances, indicating high overall classification performance with uneven performance across sentiment classes.

The study collected user reviews of the EV Charging/SPKLU feature in PLN Mobile from Google Play Store, labeled sentiment using ratings as weak labels, applied algorithm-specific class weighting on the training data to address class imbalance, and compared seven classifiers—Logistic Regression, SVM, Naive Bayes, MLP, RNN, BiLSTM, and DistilBERT—finding that MLP achieved the highest validation macro F1 (67.80%) and was selected for final testing, where it reached 89.16% accuracy and 59.42% macro F1 on 286 test instances, indicating high overall classification performance with uneven performance across sentiment classes.