| Article ID: | iaor200971211 |
| Country: | United States |
| Volume: | 15 |
| Issue: | 4 |
| Start Page Number: | 351 |
| End Page Number: | 379 |
| Publication Date: | Aug 2009 |
| Journal: | Journal of Heuristics |
| Authors: | Goodman Melissa D, Dowsland Kathryn A, Thompson Jonathan M |
| Keywords: | personnel & manpower planning |
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.