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All Journal JSM (Jurnal SIFO Mikroskil) JURTEKSI Engineering Science Letter
Rivaldi Lubis
Universitas Mikroskil
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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BERT Model Implementation for Dynamic Sentiment Analysis of Pertamina on Social Media X Purba, Ronsen; Lubis, Rivaldi; Sikana, Nadya; Situmorang, Gilbert Fernando
Engineering Science Letter Vol. 4 No. 02 (2025): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/IISTR.esl.001139

Abstract

This study aims to investigate the dynamics of public sentiment on platform X in response to the Pertamina corruption scandal, exploring how trust and perception shifted before and after the incident. Utilizing BERT-based sentiment classification model trained on real-world social media posts, the model achieved a validation loss of 0.5078 and an F1-score of 82.12%, demonstrating strong predictive performance for large-scale sentiment analysis. Results revealed a significant rise in negative sentiment and a decline in positive sentiment following the public disclosure of the scandal on February 25, 2025, reflecting a deep erosion of public trust in Pertamina. Qualitative thematic analysis further identified a shift from neutral or positive discussions focused on service quality and innovation to emotionally charged critiques emphasizing betrayal, distrust and institutional failure. These findings highlight the value of integrating deep learning classification with qualitative insights to monitor real-time public opinion and institutional reputation. The study underscores the critical need for transparency and effective communication strategies during reputational crises to rebuild public confidence. Limitations include the focus on a single social media platform, suggesting future research should incorporate cross-platform and multilingual analyses. Practically, this research offers actionable insights for corporate crisis management and contributes to understanding social media’s role in shaping public trust and accountability in the digital age.
Analisis Sentimen untuk Ulasan Produk E-Commerce Shopee Menggunakan BERT Sikana, Nadya; Winardi, Sunaryo; -, Gunawan; Situmorang, Gilbert Fernando; Lubis, Rivaldi
Jurnal Sifo Mikroskil Vol. 26 No. 2 (2025): JSM VOLUME 26 NOMOR 2 TAHUN 2025
Publisher : Fakultas Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55601/jsm.v26i2.1796

Abstract

Analisis sentimen sangat penting untuk memahami opini konsumen dan menyempurnakan strategi e-commerce. Analisis ini menghadapi tantangan seperti bahasa informal, ambiguitas semantik, dan inkonsistensi antara sentimen tekstual dan peringkat bintang, yang memengaruhi akurasi klasifikasi. Penelitian ini menerapkan model BERT (Bidirectional Encoder Representations from Transformersi) untuk mengklasifikasikan sentimen dalam ulasan pengguna Shopee. Data dikumpulkan dari penelitian sebelumnya dan menjalani praproses, termasuk tokenisasi, penghapusan stopword, dan normalisasi teks. Pendekatan analisis sentimen berbasis leksikon digunakan sebagai dasar perbandingan. Model BERT disempurnakan menggunakan optimasi hiperparameter, mencapai akurasi 83,08%, presisi 82,91%, recall 83,08%, dan F1-score 82,87%. Dibandingkan dengan studi sebelumnya yang menggunakan Naïve Bayes dengan N-Gram dan Information Gain, yang mencapai akurasi 92% tetapi presisi lebih rendah (56%), recall (65%), dan F1-score (60%), BERT mengungguli dengan metrik evaluasi yang lebih seimbang dan keandalan prediktif yang lebih besar. Hasil ini menunjukkan kemampuan BERT untuk menangkap konteks semantik dua arah, melampaui metode tradisional dalam menangani tugas analisis sentimen yang kompleks.
LITERATURE REVIEW OF THE APPLICATION FRAMEWORK IN THE ENTERPRISE ARCHITECTURE OF SECONDARY SCHOOLS Lubis, Rivaldi; Panjaitan, Erwin Setiawan
JURTEKSI (jurnal Teknologi dan Sistem Informasi) Vol. 10 No. 3 (2024): Juni 2024
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) STMIK Royal Kisaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurteksi.v10i3.3235

Abstract

Abstract: The widespread use of information and communication technology (ICT) has enhanced effectiveness and quality in management, research, and education at educational institutions. In this digital age, secondary schools are required to improve operational efficiency and educational strategies through the use of information technology. Therefore, the implementation of an enterprise architecture (EA) framework is crucial to ensure a strategic alignment between educational goals and technology. However, before implementing the framework, schools must evaluate various factors that influence the suitability and effectiveness of EA, including current technology needs, staff competencies, existing infrastructure conditions, and other factors. This study gathers and analyzes data from related studies, and the results indicate the importance of understanding EA principles to optimize academic and administrative processes. By considering variables in the selection of the EA framework, evaluating school readiness, and identifying existing challenges, this research aims to assist secondary schools in effectively implementing EA. The expected outcome of this research provides theoretical support for the adoption of EA, thus facilitating more efficient strategic and operational planning in secondary schools.      Keywords: enterprise architecture; framework; information and communication technology; secondary school.  Abstrak: Penggunaan teknologi informasi dan komunikasi (TIK) secara luas telah meningkatkan efektivitas dan kualitas dalam manajemen, penelitian, dan pendidikan di institusi pendidikan. Di era digital ini, sekolah menengah dituntut untuk meningkatkan efisiensi operasional dan strategi pendidikan melalui pemanfaatan teknologi informasi. Oleh karena itu, penerapan framework arsitektur enterprise (EA) menjadi penting untuk memastikan aliansi strategis antara tujuan pendidikan dan teknologi. Namun, sebelum penerapan framework dilakukan, sekolah harus mengevaluasi berbagai faktor yang mempengaruhi kesesuaian dan efektivitas EA, termasuk kebutuhan teknologi terkini, kompetensi staf, kondisi infrastruktur yang ada, dan faktor lainnya. Penelitian ini mengumpulkan dan menganalisis data dari studi terkait, hasilnya menunjukkan bahwa pentingnya pemahaman tentang prinsip-prinsip EA untuk mengoptimalkan proses akademik dan administratif. Dengan mempertimbangkan variabel-variabel dalam pemilihan framework EA, evaluasi kesiapan sekolah, dan identifikasi tantangan yang ada, penelitian ini bertujuan untuk membantu sekolah menengah dalam mengimplementasikan EA secara efektif. Diharapkan hasil dari penelitian ini memberikan kontribusi teoretis yang mendukung pengadopsian EA, sehingga memfasilitasi perencanaan strategis dan operasional yang lebih efisien di sekolah menengah.Kata kunci:arsitektur enterprise; framework; sekolah menengah; teknologi informasi dan komunikasi. 
Co-Authors Gunawan - Nadya Sikana Panjaitan, Erwin Setiawan Ronsen Purba Situmorang, Gilbert Fernando Winardi, Sunaryo