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All Journal G-Tech : Jurnal Teknologi Terapan
Gerfasius Take Piran
Universitas Nusa Nipa, Indonesia
Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering

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Implementation K-Means Algorithm and Decision Tree for Prediction Graduation in Vocational School Student Diploma Data Yohanes Brekmans M Darkel; Hilarius Alfan; Gerfasius Take Piran; Henderikus Basilius Nong Muda
G-Tech: Jurnal Teknologi Terapan Vol 10 No 3 (2026): G-Tech, Vol. 10 No. 3 July 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i3.10139

Abstract

This study aims to analyze vocational high school (SMK) students' diploma data using two data mining approaches: the K-Means algorithm for clustering and the Decision Tree for classification and graduation prediction. The application of these two methods provides insights into the clustering structure of students based on their diploma scores and produces a more accurate graduation prediction model. Data processing was conducted using RapidMiner through preprocessing, K-Means clustering, and classification modeling with Decision Tree. The results indicate that K-Means successfully forms student clusters based on the similarity of their scores, while Decision Tree generates classification rules that can be used to predict graduation categories. This study contributes to academic evaluation and enhances data-driven decision-making in the school environment.
Co-Authors Henderikus Basilius Nong Muda Hilarius Alfan Yohanes Brekmans M Darkel