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This paper proposes a call triage system for emergency medical service with multiple random forests (RFs). A call triage is an operation to determine the level of first‐aid service quality required based on the severity and urgency of a victim. The aim is to achieve higher overall performance and clarify the method for deciding the determination thresholds while simultaneously achieving both fail‐safe determination and overall accuracy. To achieve the former aim, we apply the RF to determine the category. Furthermore, to achieve the latter aim, we propose a new algorithm for determining the severity using multiple RFs. The results of evaluation experiment show that the proposed algorithm can provide both accuracy and fail‐safe operation in the determination of severity.
Yasuda et al. (Fri,) studied this question.