An Adaptive Simulated Annealing-Based Machine Learning Approach for Developing an E-Triage Tool for Hospital Emergency Operations

Abdulaziz Ahmed (), Mohammed Al-Maamari, Mohammad Firouz and Dursun Delen
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Abdulaziz Ahmed: The University of Alabama at Birmingham
Mohammed Al-Maamari: University of Passau
Mohammad Firouz: The University of Alabama at Birmingham
Dursun Delen: Oklahoma State University

Information Systems Frontiers, 2024, vol. 26, issue 5, No 18, 1893-1913

Abstract: Abstract Patient triage at emergency departments (EDs) is necessary to prioritize care for patients with critical and time-sensitive conditions. In this paper, the metaheuristic optimization algorithms simulated annealing (SA) and adaptive simulated annealing (ASA) are proposed to optimize the parameters of extreme gradient boosting (XGB) and categorical boosting (CaB). The proposed algorithms are SA-XGB, ASA-XGB, SA-CaB, and ASA-CaB. Grid search (GS), a traditional approach used for machine learning fine-tuning, is also used to fine-tune the parameters of XGB and CaB, which are named GS-XGB and GS-CaB. The optimized model is used to develop an e-triage tool that can be used at EDs to predict ED patients' emergency severity index (ESI). The results show ASA-CaB outperformed all the proposed algorithms with accuracy, precision, recall, and f1 of 83.3%, 83.2%, 83.3%, and 83.2%, respectively.

Keywords: E-triage automaton; Emergency severity index (ESI); Hyperparameter optimization; Simulated annealing; Machine learning; Hospital emergency department (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10796-023-10431-4

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