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All Journal Jurnal Ilmiah Informatika dan Komputer
Febrisari Amalia
Universitas Islam Negeri Sunan Ampel Surabaya
Computer Science & IT

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Three-Category News Text Classification Using LSTM on a Local Government Portal Febrisari Amalia; Andhy Permadi; Ilham Ilham
Jurnal Ilmiah Informatika dan Komputer Vol. 3 No. 1 (2026): June 2026
Publisher : CV.RIZANIA MEDIA PRATAMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69533/informatech.volume3number1.582

Abstract

This research develops an automated three-category news classification system for the official news portal of the Regional Revenue Agency (Bapenda) of Surabaya City, using a Long Short-Term Memory (LSTM) deep learning model to reduce reliance on manual, inconsistent categorization. The training corpus combined original institutional data, web-scraped articles from other regional revenue agencies, and GPT-generated synthetic text, all validated by domain experts, then processed through a structured preprocessing pipeline. On an unseen test set of 513 authentic institutional articles, the model achieved an overall accuracy of 77.78% and a weighted F1-score of 0.78, driven mainly by strong performance on the majority "Important Information" class (F1-score 0.87). However, the macro-averaged F1-score was only 0.4434, reflecting substantially weaker performance on minority classes, particularly "Information Technology" (F1-score 0.069). The model was deployed as a human-in-the-loop recommendation feature within the agency's existing dashboard.
Co-Authors Andhy Permadi, Andhy Ilham Ilham