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All Journal JOSAR (Journal of Students Academic Research)
Santi Meliani
Universitas Ngudi Waluyo
Economics, Econometrics & Finance Education Electrical & Electronics Engineering

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Cluster Analysis of Provinces Based on the Prevalence of Undernourishment Using the K-Means Algorithm Lana Astria; Santi Meliani; Ade Pratama; Abdul Rohman
JOSAR (Journal of Students Academic Research) Vol 11 No 2 (2026): September
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/9wjmrq51

Abstract

Food security is a fundamental prerequisite for human development, and Indonesia still faces wide disparities in the Prevalence of Undernourishment (PoU) across provinces. This study aims to group 38 Indonesian provinces based on their average PoU for the 2018-2024 period using the K-Means Clustering algorithm to support evidence-based food security policy prioritization. Secondary PoU data compiled from official statistics underwent data cleaning (correction of naming and regional code inconsistencies), z-score standardization, and optimal cluster determination through a combination of the Elbow Method, Silhouette Score, and Davies-Bouldin Index. The analysis identified three optimal clusters (Silhouette Score = 0.593): a low-risk cluster (26 provinces, mean PoU 7.85%), a moderate-risk cluster (6 provinces, mean PoU 17.16%), and a high-risk cluster (6 provinces, mean PoU 32.13%) dominated by provinces in Papua and Maluku. This study contributes a methodological framework for handling administrative data inconsistencies arising from regional redistricting, as well as a nutrition-intervention priority map that can serve as a reference for policymakers in achieving SDG 2 (Zero Hunger).
Co-Authors Abdul Rohman Ade Pratama Lana Astria