Andreans Pratama, 3012210007 (2026) PERBANDINGAN ALGORITMA NAIVE BAYES, RANDOM FOREST, KNN, LSTM, DAN INDOBERT UNTUK ANALISIS SENTIMEN KOMENTAR PUBLIK TERHADAP ISU REDENOMINASI RUPIAH. Undergraduate thesis, Universitas Internasional Semen Indonesia.
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Abstract
Wacana kebijakan redenominasi rupiah memicu beragam opini publik di media sosial TikTok, sehingga diperlukan analisis sentimen otomatis berbasis empat klaster opini: Optimis Mendukung, Edukasi Netral, Ragu, dan Menolak. Penelitian ini bertujuan untuk menganalisis sentimen publik serta membandingkan kinerja lima algoritma klasifikasi, yaitu Naïve Bayes, Random Forest, K-Nearest Neighbor (KNN), Long Short-Term Memory (LSTM), dan IndoBERT. Data sebanyak 6.493 komentar dikumpulkan melalui web scraping dan diseleksi menjadi 1.943 komentar relevan. Pelabelan manual oleh dua anotator menghasilkan tingkat kesepakatan Almost Perfect Agreement (Cohen’s Kappa = 0,8915). Dataset dibagi menggunakan stratified split (80:20) melalui tahap text preprocessing, ekstraksi fitur TF-IDF untuk machine learning, serta fine-tuning pada model IndoBERT. Hasil evaluasi menunjukkan bahwa IndoBERT meraih performa terbaik dengan accuracy 69,41%, precision 70,49%, recall 69,41%, dan F1-score 69,75%, mengungguli Naïve Bayes (66,58%), Random Forest (62,18%), KNN (58,03%), dan LSTM (33,16%). Model IndoBERT kemudian berhasil diimplementasikan ke dalam prototype sistem analisis sentimen berbasis web menggunakan framework Flask. Dapat disimpulkan bahwa IndoBERT merupakan algoritma paling efektif karena kemampuannya dalam memahami konteks bahasa Indonesia secara dwiarah (bidirectional) pada data teks media sosial.
| Item Type: | Thesis (Undergraduate) | ||||||
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| Additional Information: | Softfile/KK.26/UISI-01/IF | ||||||
| Uncontrolled Keywords: | Analisis Sentimen, TikTok, Redenominasi Rupiah, Naïve Bayes, Random Forest, K-Nearest Neighbor, LSTM, IndoBERT | ||||||
| Contributors: |
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| Subjects: | T Technology > T Technology (General) | ||||||
| Divisions: | Department of Informatics | ||||||
| Depositing User: | Andreans Pratama | ||||||
| Date Deposited: | 21 Aug 2026 16:41 | ||||||
| Last Modified: | 21 Aug 2026 16:43 | ||||||
| URI: | https://repository.uisi.ac.id/id/eprint/9234 |
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