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All Journal JUTIM (Jurnal Teknik Informatika Musirawas)
Hery Kristianto
UNIVERSITAS HASYIM ASY'ARI
Computer Science & IT Control & Systems Engineering Engineering Other

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IMPLEMENTASI CHATBOT WHATSAPP UNTUK LAYANAN INFORMASI DESA MENGGUNAKAN TF-IDF DAN COSINE SIMILARITY BERBASIS NATURAL LANGUAGE PROCESSING Andika Ramadhana; Hery Kristianto; Edwin Hari Agus Prastyo
JUTIM (Jurnal Teknik Informatika Musirawas) Vol. 11 No. 2 (2026): JUTIM (Jurnal Teknik Informatika Musirawas) Juni
Publisher : LPPM UNIVERSITAS BINA INSAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32767/jutim.v11i2.3091

Abstract

Village information services are still conducted manually, limiting public access to timely information. This study aims to develop a WhatsApp-based chatbot to automate village information services using Natural Language Processing (NLP), TF-IDF, and Cosine Similarity. The system employs a text preprocessing pipeline (case folding, tokenization, stopword removal, stemming), TF-IDF weighting, and similarity matching against a knowledge base of 15 FAQ pairs. Evaluation on 15 test queries yielded an average Cosine Similarity of 0.91, with 14 out of 15 queries exceeding the 0.80 threshold (93.33% success rate). This system contributes to reducing the administrative burden on village staff and improving public service response time.
Co-Authors Andika Ramadhana Edwin Hari Agus Prastyo