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  • 12-2bHave you established a notification process by developing procedures and indicators to evaluate the low system performance?
    • Unlike general software, AI systems can have performance changes in the distribution and operation of services due to the continuous accumulation of data, extension of service functions, and changes in the environment.

    • Since it is tricky to immediately find the cause of the sudden degradation of an AI system’s performance while operating the service, the system must include metrics and procedures to continuously measure and manage performance degradation. You must establish a procedure for notifying users and system operators of pertinent information when a performance degradation is discovered during a system performance inspection.

    • The performance metrics for the healthcare sector include F1-score, intersection over union, mean average precision, accuracy, recall, specificity, precision, threat score, true positive, true negative, false positive, and false negative. The medical staff needs to be trained to be able to interpret the used performance metrics. Any observation of performance degradation must be notified to the system operator in the evaluation, and the operator must prepare a procedure to find the cause for the low performance and carry out improvements. Due to the nature of healthcare, medical staff should review the data again for reassessment if there is deteriorated performance such as judgment error or unreadable when implementing an AI system.

    • After updates to improve the performance, there must be a review on the reexamination by referring to regulations related to approval and certification for changes stipulated in MFDS’ Guidelines for Approval and Evaluation of AI Medical Devices. If variables in an algorithm need to be changed, provide a thorough explanation with scholarly sources for adding variables or changing attributes considering the purpose of the data, usage period, dataset type, dataset size and storage, and dataset attributes.