运筹与管理2018，Vol.27Issue(3)：9-16,8.DOI:10.12005/orms.2018.0054
基于离散事件仿真的妇产科孕妇建卡接收规则优化
A Discrete Event Simulation Based Approach for Admission Control of Pregnant Women in Obstetrics Units
摘要
Abstract
Pregnant women need to go to one hospital and apply for admission afterthe 9th pregnant week.The scheduler should make the instant decision of admission or not.Once the women are accepted,the obstetrics unit will provide long-term consistent cares for women from the antenatal care to perinatal stage.It is a challeng for the scheduler to make such a decision due to the features of multiple resources requirement, multi-reentrance, and uncertainties in both demand arrival time and service time of the critical resources.Improper decision will lead to the unbalanced distribution of resource utilization rate of obstetrics and gynecology,and eventhe diversion of pregnant women to other hospitals.To solve this problem,this paper develops the dynamic programming(DP) model to control the resource utilization distribution.However, it is difficult to establish structural properties of the optimal control policy due to the complex structure of the model.Therefore, this paper proposes a discrete-event simulation model and multiple threshold-based admission control policies.The parameters of the policies are improved with the objective of minimizing the weighted cost of beds' idle and overloaded and patients' diver-sion penalty by using the extensive search method.Thenumerical experiments show that the optimal threshold per-forms much better than that from practices.A sensitivity ana lysis is performed and finds that the match between the capacity and the demand can further reduce the criteria value.关键词
离散事件仿真/建卡优化/阈值策略/妇产科Key words
simulation/admission control/threshold-based rules/obstetrics units分类
医药卫生引用本文复制引用
易佳琪,耿娜..基于离散事件仿真的妇产科孕妇建卡接收规则优化[J].运筹与管理,2018,27(3):9-16,8.基金项目
国家自然科学基金资助项目(71471113) （71471113）
