物流工程学院专家讲座：Physician Staffing for Emergency Departments with Time-Varying Demand

报告时间：2024年5月23日（周四），10:00-11:30

报告地点：物流楼506

主 讲 人: 刘冉

报告摘要：

Fluctuations in Emergency Department (ED) patient arrivals during a day are one of the main causes of the long waiting times that are frequently encountered, and ED staffing is one of the key drivers of ED service quality improvement. This paper first proposes discrete-time models for approximating the patient waiting times for any given ED staffing. The waiting time approximation is based on three simple ideas: separation of patients served in a period and patients overflowed; combination of M/M/c approximation for patients served and waiting time analysis of overflow patients; and transformation of the performance evaluation into an optimization problem with the number of overflow patients as decision variables. The resulting waiting time approximations are then integrated into ED staffing optimization models, and Variable Neighborhood Search (VNS) algorithms are developed to solve the ED staffing models. Numerical experiments with real-life data from Chinese hospitals are performed to validate the proposed models and algorithms. The results show that the proposed methodology is able to significantly reduce the total waiting time of patients without increasing staff capacity.

主讲人简介：

刘冉，上海交通大学工业工程与管理系副教授。2002和2005年于西北工业大学获得学士和硕士学位，2011年于上海交通大学获得博士学位，2008-2009年于香港城市大学工业与系统工程系担任研究助理，2011-2012年于法国圣艾蒂安高等矿业大学进行博士后工作。