Journal
MANAGEMENT SCIENCE
Volume -, Issue -, Pages -Publisher
INFORMS
DOI: 10.1287/mnsc.2023.4933
Keywords
hospital operations; flow management; machine learning; multistage robust optimization
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This study proposes a method for coordinating and optimizing hospital operations to improve quality and services. By combining machine learning techniques, the bed assignment process across the entire hospital is unified and various factors are considered, leading to positive outcomes.
An ideal that supports quality and delivery of care is to have hospital operations that are coordinated and optimized across all services in real time. As a step toward this goal, we propose a multistage adaptive robust optimization approach combined with machine learning techniques. Informed by data and predictions, our framework unifies the bed assignment process across the entire hospital and accounts for present and future inpatient flows, discharges, and bed requests from the emergency department, scheduled surgeries and admissions, and outside transfers. We evaluate our approach through simulations calibrated on historical data from a large academic medical center. For the 600 bed institution, our optimization model was solved in seconds and reduced off-service placement by 24% on average and boarding delays in the emergency department and post anesthesia units by 35% and 18%, respectively. We also illustrate the benefit of using adaptive linear decision rules instead of static assignment decisions.
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