BAREKENG: Jurnal Ilmu Matematika dan Terapan
Vol 19 No 3 (2025): BAREKENG: Journal of Mathematics and Its Application

IMPACT OF FEATURE SELECTION ON DECISION TREE AND RANDOM FOREST FOR CLASSIFYING STUDENT STUDY SUCCESS

Satiranandi Wibowo, Firdaus Amruzain (Unknown)
Retnawati, Heri (Unknown)
Sakti, Muhammad Lintang Damar (Unknown)
Khoirunnisa, Asma (Unknown)
Batubara, Angella Ananta (Unknown)
Berlian, Miftah Okta (Unknown)
Ibrahim, Zulfa Safina (Unknown)
Jailani, Jailani (Unknown)
Sumaryanto, Sumaryanto (Unknown)
Prasojo, Lantip Diat (Unknown)



Article Info

Publish Date
01 Jul 2025

Abstract

The advancement of technology has a profound impact on the field of education. Education plays a crucial role in enhancing quality of life, particularly in higher education, where one of the key parameters is student success. This study investigates the influence of feature selection on the performance of machine learning models, particularly Decision Tree and Random Forest, in classifying student academic success. Utilizing a dataset of 19,061 students, the research aims to identify significant variables impacting classification outcomes. Feature selection was conducted using LASSO regression, resulting in a refined dataset of critical predictors. To address data imbalance, Synthetic Minority Over-sampling Technique (SMOTE) was applied, improving the representation of underrepresented classes. Both Decision Tree and Random Forest models were trained on balanced datasets, with performance evaluated using accuracy, precision, recall, and F1-score metrics. The Random Forest model demonstrated superior accuracy (96.41%) compared to the Decision Tree (67.15%), as well as higher AUC values. Model interpretability was enhanced using SHAP (SHapley Additive exPlanations). This study underscores the utility of advanced machine learning techniques in educational analytics, paving the way for data-driven decision-making to support student achievement.

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Journal Info

Abbrev

barekeng

Publisher

Subject

Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Mathematics Mechanical Engineering Physics Transportation

Description

BAREKENG: Jurnal ilmu Matematika dan Terapan is one of the scientific publication media, which publish the article related to the result of research or study in the field of Pure Mathematics and Applied Mathematics. Focus and scope of BAREKENG: Jurnal ilmu Matematika dan Terapan, as follows: - Pure ...