Scientific Journal of Informatics
Vol. 13 No. 2: May 2026

A Multi-Model Forecasting Framework for New Student Admissions: SMA, ARIMA, and Random Forest Approaches

Falentino Sembiring (Department of Information Systems, Nusa Putra University, Indonesia)
Rieska Rahayu Ayuningsih (Department of Information Systems, Nusa Putra University, Indonesia)
Adhitia Erfina (Department of Informatics and Computer Engineering, Vietnam National University, Vietnam)
Risky (Department of Information Systems, Nusa Putra University, Indonesia)



Article Info

Publish Date
03 May 2026

Abstract

Purpose: This study evaluates and compares the forecasting performance of traditional statistical methods (Simple Moving Average and ARIMA) and a machine learning approach (Random Forest) in predicting student applicant numbers across multiple study programs at XYZ University for 2024–2026. The objective is to identify the most accurate model to support data-driven strategic planning and enrollment management. Methods: A quantitative comparative forecasting design was applied using historical admission data from 2018–2023. Three models SMA, ARIMA, and Random Forest were implemented and assessed using Mean Absolute Percentage Error (MAPE), Mean Absolute Deviation (MAD), and Mean Squared Error (MSE). Model robustness was evaluated across several study programs with different growth patterns. Result: The findings reveal an overall upward enrollment trend, particularly in Management and Informatics Engineering. Random Forest achieved the highest predictive accuracy, with MAPE values ranging from 6.17% to 17.95%, outperforming ARIMA (17.95%–33.13%) and SMA (14.5%–28.25%). The results indicate that Random Forest more effectively captures complex and non-linear enrollment dynamics. Novelty: This study provides a systematic multi-program comparison between classical time-series models and a machine learning approach within a single institutional context. It demonstrates the superior robustness of Random Forest and supports integrating machine learning–based forecasting into higher education information systems for improved strategic decision-making.

Copyrights © 2026






Journal Info

Abbrev

sji

Publisher

Subject

Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering

Description

Scientific Journal of Informatics (p-ISSN 2407-7658 | e-ISSN 2460-0040) published by the Department of Computer Science, Universitas Negeri Semarang, a scientific journal of Information Systems and Information Technology which includes scholarly writings on pure research and applied research in the ...