Year 2020, Volume 8 , Issue 2, Pages 237 - 248 2020-12-31

A Different Approach to Nurse Scheduling Problem: Lagrangian Relaxation


The problem of nurse scheduling is categorized in a Np-Hard complexity as it is inherently composed of many limitations and assumptions. As the number of nurses and the number of days increase, finding the solution of the problem becomes quite difficult. Therefore, this paper propose both an integer-programming model and a Lagrangian relaxation approach for solving nurse-scheduling problem. Numerical results show that while the developed mathematical model works on small-scale problems, Lagrangian relaxation method finds better results for large scale scheduling problem with much smaller duality gap in a reasonable computational time.
Nurse, Scheduling, Lagrangian Relaxation
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Primary Language en
Subjects Operations Research and Management Science
Journal Section Articles

Orcid: 0000-0002-9569-8178
Author: Yücel ÖZTÜRKOĞLU (Primary Author)
Country: Turkey


Application Date : December 16, 2019
Acceptance Date : September 24, 2020
Publication Date : December 31, 2020

APA Öztürkoğlu, Y . (2020). A Different Approach to Nurse Scheduling Problem: Lagrangian Relaxation . Alphanumeric Journal , 8 (2) , 237-248 . DOI: 10.17093/alphanumeric.659121