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Parallel machine scheduling problems considering regular measures of performance and machine cost / A. J. Ruiz-Torres in Journal of the operational research society (JORS), Vol. 61 N° 5 (Mai 2010) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 61 N° 5 (Mai 2010) . - pp. 849–857 Titre : Parallel machine scheduling problems considering regular measures of performance and machine cost Type de document : texte imprimé Auteurs : A. J. Ruiz-Torres, Auteur ; F. J. López, Auteur ; P. J. Wojciechowski, Auteur Année de publication : 2010 Article en page(s) : pp. 849–857 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Scheduling  Multi-objective  criteria  Parallel  machines  Machine  utilization  Pareto  solutions Index. décimale : 001.424 Résumé : This research considers a broad range of scheduling problems in the parallel machines environment. Schedules are evaluated according to two independent components of the objective function: (1) machine cost consisting of a fixed cost and a variable cost; and (2) a regular measure of performance. This study is only one of a few that take the selection of machines among those available as a decision variable. For machine cost with concave functions, we derive the general characteristics of optimal solutions with respect to decisions on the number of machines to use and the way to load the machines. Our analysis is not restricted to the machine cost criterion, but may be extended to other measures with concave functions. Furthermore, we provide a Pareto efficient perspective in understanding the tradeoff between machine cost and any regular measure of performance. DEWEY : 001.424 ISSN : 0361-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n5/abs/jors200938a.html [article] Parallel machine scheduling problems considering regular measures of performance and machine cost [texte imprimé] / A. J. Ruiz-Torres, Auteur ; F. J. López, Auteur ; P. J. Wojciechowski, Auteur . - 2010 . - pp. 849–857. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 5 (Mai 2010) . - pp. 849–857 Mots-clés : Scheduling  Multi-objective  criteria  Parallel  machines  Machine  utilization  Pareto  solutions Index. décimale : 001.424 Résumé : This research considers a broad range of scheduling problems in the parallel machines environment. Schedules are evaluated according to two independent components of the objective function: (1) machine cost consisting of a fixed cost and a variable cost; and (2) a regular measure of performance. This study is only one of a few that take the selection of machines among those available as a decision variable. For machine cost with concave functions, we derive the general characteristics of optimal solutions with respect to decisions on the number of machines to use and the way to load the machines. Our analysis is not restricted to the machine cost criterion, but may be extended to other measures with concave functions. Furthermore, we provide a Pareto efficient perspective in understanding the tradeoff between machine cost and any regular measure of performance. DEWEY : 001.424 ISSN : 0361-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n5/abs/jors200938a.html