A GRASP-knapsack hybrid for a nurse-scheduling problem

Goodman, Melissa D., Dowsland, Kathryn Anne and Thompson, Jonathan Mark 2009. A GRASP-knapsack hybrid for a nurse-scheduling problem. Journal of Heuristics 15 (4) , pp. 351-379. 10.1007/s10732-007-9066-7

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Abstract

This paper is concerned with the application of a GRASP approach to a nurse-scheduling problem in which the objective is to optimise a set of preferences subject to a set of binding constraints. The balance between feasibility and optimality is a key issue. This is addressed by using a knapsack model to ensure that the solutions produced by the construction heuristic are easy to repair. Several construction heuristics and neighbourhoods are compared empirically. The best combination is further enhanced by a diversification strategy and a dynamic evaluation criterion. Tests show that it outperforms previously published approaches and finds optimal solutions quickly and consistently

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Mathematics
Subjects:	Q Science > QA Mathematics
Publisher:	Springer
ISSN:	1381-1231
Last Modified:	04 Jun 2017 01:41
URI:	https://orca.cardiff.ac.uk/id/eprint/1704

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