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All Journal Buletin Peternakan Animal Agricultural Journal Journal of the Indonesian Tropical Animal Agriculture Agriplus Livestock and Animal Research Animal Production : Indonesian Journal of Animal Production Insect (Informatics and Security) : Jurnal Teknik Informatika Proceeding INTERNATIONAL SEMINAR IMPROVING TROPICAL ANIMAL PRODUCTION FOR FOOD SECURITY J-SAKTI (Jurnal Sains Komputer dan Informatika) IJISTECH (International Journal Of Information System & Technology) Jurnal Riset Agribisnis dan Peternakan JURNAL MAHAJANA INFORMASI bit-Tech Jurnal Penelitian Peternakan Terpadu AGROMEDIA: Berkala Ilmiah Ilmu-ilmu Pertanian IJISTECH Abdimas: Papua Journal Of Community Service Indonesian Journal of Animal Agricultural Science (IJAAS) J-SAKTI (Jurnal Sains Komputer dan Informatika) TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Anoa : Jurnal Pengabdian Masyarakat Sosial, Politik, Budaya, Hukum. Ekonomi Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) TRANSFORMASI : JURNAL PENGABDIAN PADA MASYARAKAT Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Jurnal Pengabdian Nusantara (JPN) Chalaza Journal of Animal Husbandry Joong-Ki Indonesian Journal of Community Services Jurnal Pengabdian Masyarakat FRAMEWORK Jurnal Ilmu Komputer dan Informatika Joong-Ki Jurnal Pengabdian Kepada Masyarakat (JAPIMAS)
Surahmanto
Department Of Animal Science, Halu Oleo University, Indonesia
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Journal : bit-tech

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NLP Based Tourism Service Optimization on Multilingual Voice Chatbot Jundullah, Muhammad; Ermin, Ermin; Surahmanto, Muhammad; Fakhri, La Jupriadi; Muslim, Hatari
bit-Tech Vol. 8 No. 3 (2026): bit-Tech
Publisher : Komunitas Dosen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32877/bt.v8i3.3473

Abstract

The rapid advancement of artificial intelligence has created significant opportunities to enhance tourism services, a vital sector of Indonesia’s economy, particularly in Raja Ampat as a leading ecotourism destination. (R1-1 Background) A persistent challenge in this region is effective communication for homestay management, where limited human resources and linguistic diversity constrain service quality. (R1-1 Methodology) This study evaluates a multilingual voice chatbot integrating Natural Language Processing, Large Language Models, and a Retrieval-Augmented Generation architecture, supporting Indonesian, English, and a virtual local language. System performance is quantitatively assessed using Speech-to-Text accuracy measured by Word Error Rate, intent classification metrics, semantic retrieval effectiveness, and end-to-end evaluation. The proposed pipeline includes speech data collection, text normalization, multilingual embedding, vector storage, semantic retrieval, and response generation. (R1-2 Results) Results show that STT quality strongly determines downstream performance. Indonesian achieves the lowest WER (0.14) and the highest intent F1-score (0.89), while the virtual language records the highest WER (0.25) and the lowest intent F1-score (0.65). The semantic retriever attains a Mean Average Precision of 0.55, indicating moderate document ranking quality. The integrated end-to-end system achieves an F1-score of 0.857 with a user satisfaction score of 4.4. (A-1 Contribution) Compared with existing tourism chatbots, the proposed system uniquely combines multilingual voice interaction with RAG-based grounding to improve response reliability in low-resource settings. (A-2 Conclusion and applicability) These findings demonstrate practical effectiveness for homestay services and highlight scalability to other multilingual tourism regions in Indonesia and beyond.
Co-Authors A Setiadi, A A. Muktiani A. Purnomoadi A. Subrata A.A. Ketut Agung Cahyawan W Abda Abda Abdul Rizal Abdul Rizal Ahmad Ilham Amiluddin Indi Amiluddin Indi Amiludin Indi Andi Murlina Tasse Andini Sulfitrana Anindyaningrum Zainal Putri Aras, Suhardi Arpandi, Arpandi AS Aku, AS Asma Bio Kimestri Asma Bio Kimestri Asmaul Husna B. Rahmi, B. Bahari Putra, Fajar Rahardika Bambang W.H.E Prasetiyono, Bambang W.H.E Deki Zulkarnain Dewi S, Rachmita Dewi, Ghina Meriyana Dimas Adi Suseno E. Pangestu E. Pangestu Eko Harianto . Eny Fuskhah Ermin Ermin Ermin F. Trisakti Haryadi Fadli Ma’mun Pancar Faida Musa’ad Fajar Rahardika Bahari Putra Fakhri, La Jupriadi Faridah, Alfiyyah Fatmawati Fatmawati Firman Nasiu Fitrianingsih Fitrianingsih Fuji Astuty Auza Fuskhah, E. G. Gerhana Gerhana Gerhana Gerhana Hairil Adzuliyatno Hadini Harapin Hafid H. Haris, H Ichwan, Saiful J. Achmadi Jabuddin, La Ode Jamaluddin K, Kusrini Kemistri, Asma Bio L. K. Nuswantara La Harudin La Jupriadi Fakhri La Malesi La Ode Arsad Sani La Ode Hadini La Ode Muhamad Munadi La Ode Nafiu La Ode Sahaba M. Christiyanto Mallisa, Bita Mardin, Mardin Muh. Rusdin Muhammad Amrullah Pagala Muhammad Jundullah Muhammad Jundullah Muhammad Rizki Setyawan Muhammad Syukri Mustafa, Muhammad Syukri Muhammad Yusuf MUHAMMAD YUSUF Munadi Munadi Murni Muslim, Hatari Musram Abadi Muzakkir Pangri Natsir Sandiah Nur Miswar Nur Santy Asminaya Nurdjan, Nirwana Nurhayu Pambudi, Ditto Satria Putra, Fajar Rahardika Bahari Putu Arimbawa Putu Nara Kusuma Prasanjaya Restu Libriani Rezki REZKI, REZKI Risna Wati S. Surono S. Sutrisno Safitri Sakti, Abdul Sandiah, N. Saputra, Tirta Romadhon Cipta Sa’ad, Muhammad Ibnu Sensu, La Soekarta, Rendra Soemari, Muhammad Rizki Pratono Sri Wulandari Srimawati (Srimawati) Sudjatmogo Sudjatmogo Sumadi (Sumadi) Sumarsono Sumarsono Surya Cipta Ramadhan Kete Syah, Muhamad Azwar Syamsuddin Syamsuddin T. B. Iskandar Moeda T. Miyagi, T. TAKDIR SAILI Talaohu, Syamsudin Aliphadji Tampoebolon, Baginda Iskandar Muda V. D. Yunianto Virasanty Muslimah Widiyanto (Widiyanto) Widiyanto Widiyanto Y. Kawamoto Y. Yanti Yamin Yaddi