Towards more efficient and robust evaluation of sepsis treatment with deep reinforcement learning

Author:

Yu Chao,Huang Qikai

Abstract

Abstract Background In recent years, several studies have applied advanced AI methods, i.e., deep reinforcement learning, in discovering more efficient treatment policies for sepsis. However, due to a paucity of understanding of sepsis itself, the existing approaches still face a severe evaluation challenge, that is, how to properly evaluate the goodness of treatments during the learning process and the effectiveness of the final learned treatment policies. Methods We propose a deep inverse reinforcement learning with mini-tree model that integrates different aspects of factors into the reward formulation, including the critical factors in causing mortality and the key indicators in the existing sepsis treatment guidelines, in order to provide a more comprehensive evaluation of treatments during learning. A new off-policy evaluation method is then proposed to enable more robust evaluation of the learned policies by considering the weighted averaged value functions estimated until the current step. Results Results in the MIMIC-III dataset show that the proposed methods can achieve more efficient treatment policies with higher reliability compared to those used by the clinicians. Conclusions A more sound and comprehensive evaluation of treatments of sepsis should consider the most critical factors in infulencing the mortality during treatment as well as those key indicators in the existing sepsis diagnosis guidelines.

Funder

Hongkong Scholar Program

National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Health Informatics,Health Policy,Computer Science Applications

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2. Artificial intelligence and machine learning’s role in sepsis-associated acute kidney injury;Kidney Research and Clinical Practice;2024-07-31

3. Optimizing Sepsis Treatment Through Reinforcement Learning: A Revisitation of Reward and Loss Functions in Dueling Double Deep Q-Network;2024 5th International Seminar on Artificial Intelligence, Networking and Information Technology (AINIT);2024-03-29

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