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Appears in Collections:Computing Science and Mathematics Journal Articles
Peer Review Status: Refereed
Title: Progress control in iterated local search for nurse rostering
Authors: Burke, Edmund
Curtois, Tim
van, Draat Laurens F
van, Ommeren Jan-Kees
Post, Gerhard
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Keywords: local search
iterated local search
nurse rostering
Issue Date: 2011
Publisher: Palgrave Macmillan
Citation: Burke E, Curtois T, van Draat LF, van Ommeren J & Post G (2011) Progress control in iterated local search for nurse rostering, Journal of the Operational Research Society, 62 (2), pp. 360-367.
Abstract: This paper describes an approach in which a local search technique is alternated with a process which ‘jumps' to another point in the search space. After each ‘jump' a (time-intensive) local search is used to obtain a new local optimum. The focus of the paper is in monitoring the progress of this technique on a set of real world nurse rostering problems. We propose a model for estimating the quality of this new local optimum. We can then decide whether to end the local search based on the predicted quality. The fact that we avoid searching these bad neighbourhoods enables us to reach better solutions in the same amount of time. We evaluate the approach on five highly constrained problems in nurse rostering. These problems represent complex and challenging real world rostering situations and the approach described here has been developed during a commercial implementation project by ORTEC bv.
Type: Journal Article
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Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Deputy Principal's Office
University of Nottingham
ORTEC, The Netherlands
University of Twente
ORTEC, The Netherlands

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