Analyzing COVID-19's Educational Impact in Indonesia: K-Means and Self-Organizing Map Approach
Abstract
The COVID-19 pandemic has affected the education sector. This research aimed to investigate the impact of COVID-19 on the education sector in Indonesia, especially on school participation indicators, using cluster analysis. We used fifteen factors related to the involvement indicators of students in elementary, junior secondary, and senior secondary education. The comparison of factors between 2019 and 2020 related to the effects of COVID-19, which began to proliferate in Indonesia in March 2020. Consequently, comparing those periods yields insights into the timeframe before and after the spread of COVID-19. To assess the pandemic's influence on the education sector, we performed an inferential statistical analysis using a nonparametric location test to identify significant changes between variables in 2019 and 2020. Subsequently, we performed cluster analysis using K-Means and Self-Organizing Map (SOM) approaches. The optimal cluster obtained for K-Means and SOM is three clusters. The results indicate that SOM and K-Means exhibit similar performances. Changes in cluster members in 2019 and 2020 indicate an enormous impact due to COVID-19. Cluster 3, which consists of DKI Jakarta, West Java, Central Java, East Java, and North Sumatra, is most affected by the pandemic from the educational sector.
References
A. Abidah, H. N. Hidaayatullaah, R. M. Simamora, D. Fehabutar, L. Mutakinati, and N. Suprapto, “The Impact of Covid-19 to Indonesian Education and Its Relation to the Philosophy of ‘Merdeka Belajar,’” Studies in Philosophy of Science and Education (SiPoSE), vol. 1, no. 1, pp. 38–49, 2020, [Online]. Available: http://scie-journal.com/index.php/SiPoSE
J. E. Wallace, “The Impact of Remote Learning on Student Engagement and Academic Performance during the COVID-19 Pandemic,” Journal of Education and Teaching Methods, vol. 2, no. 2, pp. 20–32, 2023.
Z. Abidin and Tobibatussa’adah, “THE IMPACT OF COVID-19 PANDEMIC ON EDUCATION AND JUDICIAL PRACTICE IN INDONESIA,” RI’AYAH, vol. 5, no. 2, pp. 122–130, 2020, Accessed: Jan. 31, 2026. [Online]. Available: https://e-journal.metrouniv.ac.id/riayah/article/view/2794/1886
N. Rulandari, “The Impact of the Covid-19 Pandemic on the World of Education in Indonesia,” IJSS Ilomata International Journal of Social Science, vol. 1, no. 4, pp. 242–250, 2020, [Online]. Available: https://www.ilomata.org/index.php/ijss
R. Afkar and N. Yarrow, Rewrite the future: How Indonesia’s education system can overcome the losses from the COVID-19 pandemic and raise learning outcomes for all. Washington DC: World Bank, 2021. Accessed: Jan. 31, 2026. [Online]. Available: https://documents1.worldbank.org/curated/en/589551630680730676/pdf/Rewrite-the-Future-How-Indonesias-Education-System-can-Overcome-the-Losses-From-the-COVID-19-Pandemic-and-Raise-Learning-Outcomes-for-All.pdf
OECD, “PISA 2022 Results Factsheets Indonesia,” 2023. Accessed: Jan. 31, 2026. [Online]. Available: https://oecdch.art/a40de1dbaf/C108.
V. Ayuningtyas and I. M. Arsana, “Hambatan Pembelajaran Jarak Jauh di Masa Pandemi Covid-19,” Jurnal Pendidikan Teknik Mesin, vol. 11, no. 2, pp. 186–194, 2022.
N. F. Azzahra, “Addressing Distance Learning Barriers in Indonesia Amid the Covid-19 Pandemic,” Jakarta, 2020. Accessed: Jan. 31, 2026. [Online]. Available: https://hdl.handle.net/10419/249436
OECD, “Education at a Glance 2024: OECD Indicators,” Education at a Glance, vol. 2024, Sep. 2024, doi: 10.1787/C00CAD36-EN.
UNESCO, “Education: From disruption to recovery | UNESCO.” Accessed: Jan. 31, 2026. [Online]. Available: https://www.unesco.org/en/covid-19/education-disruption-recovery
World Bank, “The State of Global Learning Poverty: 2022 Update,” World Bank. Accessed: Jan. 31, 2026. [Online]. Available: https://www.worldbank.org/en/topic/education/publication/state-of-global-learning-poverty
A. Karim, S. Esabella, K. Kusmanto, M. Hidayatullah, and S. Suryadi, “Penerapan Data Mining Untuk Pengelompokan Terhadap Kualitas Kinerja Karyawan Dengan Menggunakan Algoritma K-Medoids Clustering,” Jurnal Media Informatika Budidarma, vol. 8, no. 2, p. 1001, 2024, doi: 10.30865/mib.v8i2.7445.
J. D. Gibbons and S. Chakraborti, Nonparametric Statistical Inference, 6th ed. New York: Chapman and Hall/CRC, 2020. doi: 10.1201/9781315110479.
A. M. Ikotun, A. E. Ezugwu, L. Abualigah, B. Abuhaija, and J. Heming, “K-means clustering algorithms: A comprehensive review, variants analysis, and advances in the era of big data,” Inf. Sci. (N. Y)., vol. 622, pp. 178–210, Apr. 2023, doi: 10.1016/j.ins.2022.11.139.
S. Licen, A. Astel, and S. Tsakovski, “Self-organizing map algorithm for assessing spatial and temporal patterns of pollutants in environmental compartments: A review,” Science of The Total Environment, vol. 878, p. 163084, Jun. 2023, doi: 10.1016/J.SCITOTENV.2023.163084.
T. Kohonen, Self-Organizing Maps, vol. 30. in Springer Series in Information Sciences, vol. 30. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. doi: 10.1007/978-3-642-56927-2.
J. Han, M. Kamber, and J. Pei, Data Mining: Concepts and Techniques, 3rd ed. USA: Morgan Kaufmann, 2012. doi: 10.1016/B978-0-12-381479-1.00001-0.
D. Xu and Y. Tian, “A Comprehensive Survey of Clustering Algorithms,” Annals of Data Science 2015 2:2, vol. 2, no. 2, pp. 165–193, Aug. 2015, doi: 10.1007/S40745-015-0040-1.
I. G. A. N. K. Sukiastini, “Dunia Pendidikan di Wilayah Pedalaman Papua Sebelum dan Setelah Terdampak Covid-19,” Syntax Idea, vol. 2, no. 8, pp. 381–388, 2020, Accessed: Feb. 01, 2026. [Online]. Available: https://jurnal.syntax-idea.co.id/index.php/syntax-idea/article/view/497/392
S. Paling and M. Sitorus, “Efektifitas Pembelajaran Daring Pada Masa Pandemi Covid-19 di Papua,” Jurnal Education and development, vol. 9, pp. 64–71, May 2021.
J.-L. N. Upoalkpajor and C. B. Upoalkpajor, “The Impact of COVID-19 on Education in Ghana,” Asian Journal of Education and Social Studies, pp. 23–33, Jun. 2020, doi: 10.9734/AJESS/2020/V9I130238.
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