• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Predicting Housing Price in Seoul using Explainable AI (XAI) and Machine Learning

Vol. 19, No. 4, April 30, 2025
10.3837/tiis.2025.04.002, Download Paper (Free):

Abstract

This study analyzed 61,593 cases of real transaction price of apartments in Seoul from January 1, 2021 to September 30, 2023, with the output variable being set as the sales price per dedicated area and the input variables being set as the contract month, floor, year of construction, number of units, and distance to the subway station, etc. After determining which of the machine learning (ML) models, LGBM, XGBoost, and GBDT, had the best predictive power, the importance of each variable was analyzed using XAI's SHAP (SHapley Additive exPlanations) technique. The R2 value of XGBoost was 0.917, MAE value was 134.971, and RMSE value was 191.325, showing the best predictive power. According to the results of applying the SHAP technique to the XGBoost model, heating method, year of construction, distance to subway station, contract month, number of households, distance to market, distance to middle school, distance to high school, distance to elementary school, number of floors, home network, contract date, and management method have the highest influence and importance on the sales price per dedicated area.


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Cite this article

[IEEE Style]
H. J. Chun, U. H. Lee, B. G. Lee, "Predicting Housing Price in Seoul using Explainable AI (XAI) and Machine Learning," KSII Transactions on Internet and Information Systems, vol. 19, no. 4, pp. 1077-1096, 2025. DOI: 10.3837/tiis.2025.04.002.

[ACM Style]
Hae Jung Chun, U Hui Lee, and Bong Gyou Lee. 2025. Predicting Housing Price in Seoul using Explainable AI (XAI) and Machine Learning. KSII Transactions on Internet and Information Systems, 19, 4, (2025), 1077-1096. DOI: 10.3837/tiis.2025.04.002.

[BibTeX Style]
@article{tiis:102442, title="Predicting Housing Price in Seoul using Explainable AI (XAI) and Machine Learning", author="Hae Jung Chun and U Hui Lee and Bong Gyou Lee and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2025.04.002}, volume={19}, number={4}, year="2025", month={April}, pages={1077-1096}}