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All Journal EKONOMIA Jurnal Informatika dan Teknik Elektro Terapan Informatika Mulawarman: Jurnal Ilmiah Ilmu Komputer JIKO (Jurnal Informatika dan Komputer) JURNAL MEDIA INFORMATIKA BUDIDARMA Indonesian Journal of Artificial Intelligence and Data Mining Jurnal Ilmiah Matrik JURNAL INSTEK (Informatika Sains dan Teknologi) Jurnal Teknologi Sistem Informasi dan Aplikasi JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Psychology, Evaluation, and Technology in Educational Research INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi METIK JURNAL Building of Informatics, Technology and Science Progresif: Jurnal Ilmiah Komputer JISKa (Jurnal Informatika Sunan Kalijaga) Jurnal Ilmiah Betrik : Besemah Teknologi Informasi dan Komputer Jurnal Mnemonic JATI (Jurnal Mahasiswa Teknik Informatika) Scientific Journal of Informatics JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Didaktik : Jurnal Ilmiah PGSD STKIP Subang Reswara: Jurnal Pengabdian Kepada Masyarakat TIN: TERAPAN INFORMATIKA NUSANTARA Journal of Computer Networks, Architecture and High Performance Computing BAKTI BANUA : JURNAL PENGABDIAN KEPADA MASYARAKAT Teknika Jurnal Informatika Teknologi dan Sains (Jinteks) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Jurnal Bangkit Indonesia CONSEN: Indonesian Journal of Community Services and Engagement Jurtik STMIK Bandung Jurnal Abdimas Lamin Jurnal Informatika: Jurnal Pengembangan IT Journal of Innovative and Creativity Kesatria : Jurnal Penerapan Sistem Informasi (Komputer dan Manajemen) Buffer Informatika Computer Journal INOVTEK Polbeng - Seri Informatika JSE Journal of Science and Engineering Journal of Information Technology KREATIF: Jurnal Pengabdian Masyarakat Nusantara Jurnal Abdimas Mahakam
Taghfirul Azhima Yoga Siswa
Universitas Muhammadiyah Kalimantan Timur
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Analisis Sentimen Ulasan Pengguna inDrive Menggunakan IndoBERT dan Algoritma Genetika pada Klasifikasi K-Nearest Neighbor Muhammad Sigit Nurhafid; Rudiman Rudiman; Taghfirul Azhima Yoga
Computer Journal Vol. 4 No. 2 (2026): August
Publisher : Yayasan Pendidikan Mitra Mandiri Aceh (YPMMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58477/cj.v4i2.497

Abstract

This study analyzes sentiment in InDrive user reviews from the Google Play Store using IndoBERT, Genetic Algorithm (GA), and K-Nearest Neighbor (KNN). A total of 2,000 reviews were assigned to three sentiment classes: 1,695 negative, 235 positive, and 70 neutral reviews. The pretrained indobenchmark/indobert-base-p1 model was used as a feature extractor by taking the [CLS] representation to produce 768-dimensional embeddings. The dataset was divided using a stratified 80:20 split into 1,600 training and 400 testing samples. The optimal K value was determined through stratified five-fold cross-validation on the training data. GA was applied only to the training set using a population of 30 individuals, 25 generations, a crossover rate of 0.8, a mutation rate of 0.005, and a feature penalty of 0.002. GA selected 250 features, reducing the dimensionality by 67.45%. IndoBERT + KNN correctly classified 365 of 400 test samples, achieving 91.25% accuracy (95% CI: 88.07–93.64%) and a macro F1-score of 66.88%. IndoBERT + GA + KNN correctly classified 362 samples, achieving 90.50% accuracy (95% CI: 87.23–93.00%) and a macro F1-score of 62.71%. Both models exceeded the 84.75% majority-class baseline. However, only three and two of the 14 neutral samples were correctly classified, respectively. GA substantially reduced feature dimensionality but did not improve predictive performance, indicating a trade-off between representation compactness and minority-class classification performance.
Co-Authors Abdul Rahim Abdul Rahim Abror, Irfan Fiqry Agustya Nanda Pratiwi Akbar, Zakaria Ihza Alfi Arif Anis Siti Nurrohkayati Anitasari, Dini Anton Prafanto Anton Saputra Arbansyah Arbansyah Ari Ahmad Dhani Ariyadi, Dedy Asnur Karima Aspianur Azwar Damari Bahrudin, Faizal Bayu Wijayantini, Bayu Betris Dea Maretta, Nanda Catur Kumala Dewi Damari, Azwar Darmawan Setiya Budi Daryanto Dion Ikhzanza Rabbil Dzul Rachman, Dzul Ekawati Ekawati Enriko Chiesa Sipahutar Fadhil Irsyad Ramadhani Faizal Bahrudin FAUZI Fendy Yulianto Fendy Yulianto Gubtha Mahendra Putra Haryadi, Rina Mashitoh Hasudungan, Rofilde Heri Abijono Hery Kurniawan Hidayati Ramadhani, Novia Hidayatullah, Muhammad Wahyu Istimaroh Istimaroh Jubaidi Khanisa Octavia Khatimah, Khusnul lia, Alvina Lidya Sari Mardiana Mardiana Mi'raj Fattah Mu. Aldi Rahmad Fahrozi Muhammad Aditya Rahman Muhammad Afif Aunur Rohman Muhammad Fadly Ramadhani Muhammad Najeri Al Syahrin Muhammad Norhalimi Muhammad Rhosyid Akhmad Muhammad Sigit Nurhafid Muhammad Ulil Albab Muhammad Wildan Hadinata Naufal Azmi Verdhika Naufal Azmi Verdikha Naufal Azmi Verdikha Naufal Azmi Verdikha Nur Dila Yuanti Nursaid Nursaid Pambudi, Faldy Alfareza Paula Mariana Kustiawan Pitoyo Pitoyo Pitoyo, Pitoyo Poernamawan, Ahmad Nugraha Prihandoko . Putri, Azzahra Namira Raenald Syaputra Rahman, Febrian Nor Ramadhani, Daib Jidan Renaldi Panji Wibowo Renaldi Yoga Rendy Menono Restu, Anggiq Karisma Aji Rina Masithoh Haryadi Rivaldo, Vito Junivan Rizky Aspiah Rochman, Bagus Fathur Rofilde Hasudungan Rudiman Rudiman Rudiman, R Rudiman, Rudiman Salsabila, Cindy Azra Santi Yatnikasari Sarina Safitri Satria, Bima Sidiq, Reza June Siti Muawwanah Taufik Sobri Taufiq, Ilham Taufiqurrahman Taufiqurrahman Triawan Adi Cahyanto Wahyu Hidayat Wawan Joko Pranoto Wawan Joko Pranoto Wawan Joko Pranoto Widyastuti, Dessy Yoga Priantama