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A hybrid tabu search algorithm for automatically assigning patients to beds
Peter Demeester1, Wouter Souffriau, Patrick De Causmaecker
1KaHo Sint-Lieven, Information Technology, Gent, Belgium. Peter.Demeester@kahosl.be
Objective:
We describe a patient admission scheduling algorithm that supports the operational decisions in a hospital. It involves efficiently assigning patients to beds in the appropriate departments, taking into account the medical needs of the patients as well as their preferences, while keeping the number of patients in the different departments balanced.
Methods:
Due to the combinatorial complexity of the admission scheduling problem, there is a need for an algorithm that intelligently assists the admission scheduler in taking decisions fast. To this end a hybridized tabu search algorithm is developed to tackle the admission scheduling problem. For testing, we use a randomly generated data set. The performance of the algorithm is compared with an integer programming approach.
Results And Conclusion:
The metaheuristic allows flexible modelling and presents feasible solutions even when disrupted by the user at an early stage in the calculation. The integer programming approach is not able to find a solution in 1h of calculation time.
