JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika)
Vol 10, No 4 (2025)

TOPIC MODELING OF UNDERGRADUATE THESES METADATA USING LDA FOR TREND ANALYSIS IN LIS

Sherly Rosa Anggraeni (Universitas Negeri Malang)
Moh Safii (Universitas Negeri Malang)
Rani Auliawati Rachman (Universitas Negeri Malang)
Amalia Nurma Dewi (Universitas Negeri Malang)



Article Info

Publish Date
01 Dec 2025

Abstract

Uncovering latent trends in academic metadata is critical for under-standing research dynamics in information systems. This study em-ploys Latent Dirichlet Allocation (LDA), a probabilistic machine learning algorithm in artificial intelligence, to analyze metadata from 180 undergraduate theses (2020–2024) at Universitas Negeri Malang, using Library and Information Science (LIS) as a case study. The da-taset, comprising titles and abstracts, underwent preprocessing (tokeni-zation, lowercasing, stopword removal, and domain-specific term fil-tering) to create a clean text corpus. Using Gensim’s variational Bayes, LDA models with K=5–15 topics were tested, selecting K=8 based on optimal C_v coherence (0.65) and perplexity (~150). Topics, labeled via top keywords, include Digital Libraries, User Behavior, and Ar-chive Management. Annual topic distributions, visualized via stacked bar charts, revealed a surge in digital topics during 2021–2022 (pan-demic-driven) and rising user behavior focus in 2022–2023. This LDA framework demonstrates scalability for text mining in academic data-bases, offering a replicable pipeline for trend analysis across domains like education or social media. Findings complement global studies, providing insights for curriculum alignment. Limitations include small dataset size and metadata-only analysis. Future work could integrate full-text data or advanced models like BERTopic for enhanced seman-tic discovery.

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Journal Info

Abbrev

Publisher

Subject

Computer Science & IT Education

Description

JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) e-ISSN: 2540 - 8984 was made to accommodate the results of scientific work in the form of research or papers are made in the form of journals, particularly the field of Information Technology. JIPI is a journal that is managed by the ...