Engineering Science Letter
Vol. 5 No. 03 (2026): Engineering Science Letter - Articles in Press

Performance Comparison of SMOTE-Based Ran-dom Forest and Decision Tree Models for Chronic Kidney Disease Classification

Rahmat Dwi Cahyono (Universitas Ahmad Dahlan)
Herman Yuliansyah (Universitas Ahmad Dahlan)
Sunardi (Universitas Ahmad Dahlan)



Article Info

Publish Date
27 Oct 2026

Abstract

Chronic Kidney Disease (CKD) is a chronic condition characterized by a gradual decline in kidney function and is often detected at an advanced stage. Previous studies have employed machine learning methods-such as Random Forest and Decision Trees-for CKD classification; however, there is no consensus regarding which algorithm is most optimal for CKD datasets. The large number of clinical variables in CKD data increases computational complexity, necessitating high-performance machine learning methods to improve classification accuracy and support early disease detection. This study aims to develop a CKD classification model and compare the performance of Decision Tree and Random Forest algorithms. The research utilized a health dataset obtained from Mendeley Data. The methodology involved data acquisition, exploratory data analysis, data preprocessing (including addressing class imbalance via the Synthetic Minority Over-sampling Technique, or SMOTE), and model development using Random Forest and Decision Trees, with evaluation performed via 10-fold stratified cross-validation. Model performance was assessed using confusion matrices and classification reports, covering metrics such as accuracy, precision, recall, and F1-score. Experimental results indicate that Random Forest yielded the best classification performance, achieving an accuracy of 0.9437. It is concluded that comparing Random Forest and Decision Tree methods-combined with SMOTE-is an effective approach for identifying the optimal algorithm to enhance accuracy and support decision-making systems for the early detection of CKD.

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Journal Info

Abbrev

ESL

Publisher

Subject

Computer Science & IT Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

Description

Engineering Science Letter is an international peer-reviewed letter that welcomes short original research submissions on any branch of engineering, computer science, and technology, as well as their applications in industry, education, health, business, and other fields. Artificial intelligence, ...