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All Journal Jurnas Nasional Teknologi dan Sistem Informasi JOURNAL OF APPLIED INFORMATICS AND COMPUTING Jurnal Telematika JIEMS (Journal of Industrial Engineering and Management Systems) Indonesian Journal of Applied Informatics JOISIE (Journal Of Information Systems And Informatics Engineering) Jurnal Tekno Kompak Zonasi: Jurnal Sistem Informasi JATI (Jurnal Mahasiswa Teknik Informatika) INFORMASI (Jurnal Informatika dan Sistem Informasi) Journal of Business and Audit Information System (JBASE) OISAA Journal of Indonesia Emas Jurnal Pengabdian dan Kewirausahaan Computer Science (CO-SCIENCE) JURNAL ILMIAH GLOBAL EDUCATION Jurnal Minfo Polgan (JMP) Jurnal Sistem Informasi Triguna Dharma (JURSI TGD) Journal of Information Technology Jurnal Teknoinfo
Bhustomy Hakim
Universitas Bunda Mulia
Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Other

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Indonesian Hate Speech Detection Across Diverse Domains Using Parameter-Efficient Fine-Tuning with IndoBERT and LoRA Fergie Joanda Kaunang; Bhustomy Hakim; Angelina Pramana Thenata
Jurnal Minfo Polgan Vol. 15 No. 2 (2026): Artikel Penelitian
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/jmp.v15i2.16581

Abstract

The rapid proliferation of digital connectivity in Indonesia has catalyzed an unprecedented surge in harmful online content, necessitating robust automated systems for hate speech detection that can generalize across diverse digital platforms. Traditional models often struggle with domain shift and the linguistic complexities of Indonesian social media discourse, including informal slang and code-mixing. This research proposes a multi-domain detection framework leveraging the IndoBERT-base-p1 architecture integrated with Low-Rank Adaptation (LoRA), a parameter-efficient fine-tuning (PEFT) strategy. The study utilizes a multi-source corpus from Instagram, Twitter, and news portals, employing back-translation to augment scarce Instagram data and stratified downsampling to ensure domain equilibrium. By training only 1–2% of the total 110 million parameters, specifically targeting the query and value attention modules, the model achieves significant computational savings with a training loss of 0.345. Experimental results demonstrate high robustness, with the framework attaining F1-scores of 0.83 for both Instagram and Twitter, and 0.81 for news portals, while maintaining accuracies between 0.81 and 0.85. Qualitative validation through word cloud analysis further confirms the model's ability to distinguish between aggressive sociopolitical triggers and neutral functional discourse. This study contributes a scalable and resource-efficient solution for real-time content moderation, proving effective across both formal journalistic Indonesian and informal digital dialects. The findings indicate that IndoBERT+LoRA provides a promising and resource-efficient approach for multi-domain Indonesian hate and abusive speech classification, while stricter leave-one-domain-out evaluation remains an important direction for future work.
Co-Authors ., Ranny Abednego Marcello Akhmat Fauzi Anak Agung Ayu Putri Ardyanti Asvian Sulaeman Carlos Hia, Juan Chandra, Michelle Mei Diana Chang, Jennefer Febiola, Febiola Fendyanto Fendyanto Fendyanto, Fendyanto Ferdian Aditya Pratama Fergie Joanda Kaunang Fraderic, Fedelis Franclin, Marcell Gabriella, Theresia Geasela, Yemima Monica Geasela, Yemima Monica Hanna Mariana Angelika Hansen Handoko, Hie Hansen, Yoel Hartono, Sherren Hazimah, Malahayati Hendri, Glenda Jocelyn Hon, Peter Raymond Jen, Phangestin Johanes Shane Jonathan Mikhael Anthony Kaunang, Fergie Joanda Kaunang, Fergie Joanda Kinasih, Putri Rindu Kosasi Kosasi Leoflavianus Jang Carlos Lirungan, Maria Carol Stephanie Lukman, Nicholas Merryana Lestari Michael Wijaya Monica Geasela, Yemima Mulyanto, Andrew Kristanto Peter Nolasco Jong Petrisa, Sisilia Ranny Ranny Ranny, Ranny Rarasati, Dionisa Bhisetya Reji Darmawan Rendy Sarudin Rendy Sarudin Sophia Reni Susilo Talarice Felicia Elvinata Happy Clarissa Thenata, Angelina P. Thenata, Angelina Pramana Theresia Gabriella Vinsensius Sugito Lein Wendy, Albert Widjaja, Florence Aurelia Wijayanti, Theresia Puspa Yemima Monica Geasela