An improvement on the Tracy and Chen model / M. Khalili in Journal of the operational research society (JORS), Vol. 61 N° 12 (Décembre 2010)  

Public ISBD [article]  inJournal of the operational research society (JORS) > Vol. 61 N° 12 (Décembre 2010) . - pp. 1789–1793 Titre : An improvement on the Tracy and Chen model : a generalized model for weight restrictions in DEA Type de document : texte imprimé Auteurs : M. Khalili, Auteur ; A. S. Camanho, Auteur ; M. C. A. S. Portela, Auteur Année de publication : 2011 Article en page(s) : pp. 1789–1793 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Data envelopment analysis Relative efficiency Generalized weight restrictions Index. décimale : 001.424 Résumé : Recently Tracy and Chen presented a parametric DEA model (PDEA) to assess relative efficiency in the presence of a generalized form of linear weight restrictions. This paper proposes a modification to the PDEA model that avoids the need to resort to searching algorithms to estimate efficiency, and assures that the correct efficiency scores are obtained in a single stage using mathematical programming solvers. The results of this model and the results of Tracy and Chen's PDEA model are compared using the examples reported in their paper. The results confirm the superiority of the model proposed in this paper. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n12/abs/jors2009140a.html [article] An improvement on the Tracy and Chen model : a generalized model for weight restrictions in DEA [texte imprimé] / M. Khalili, Auteur ; A. S. Camanho, Auteur ; M. C. A. S. Portela, Auteur . - 2011 . - pp. 1789–1793. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 61 N° 12 (Décembre 2010) . - pp. 1789–1793 Mots-clés : Data envelopment analysis Relative efficiency Generalized weight restrictions Index. décimale : 001.424 Résumé : Recently Tracy and Chen presented a parametric DEA model (PDEA) to assess relative efficiency in the presence of a generalized form of linear weight restrictions. This paper proposes a modification to the PDEA model that avoids the need to resort to searching algorithms to estimate efficiency, and assures that the correct efficiency scores are obtained in a single stage using mathematical programming solvers. The results of this model and the results of Tracy and Chen's PDEA model are compared using the examples reported in their paper. The results confirm the superiority of the model proposed in this paper. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v61/n12/abs/jors2009140a.html

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