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Mostrando ítems 451-460 de 504
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On minimax and Pareto optimal security payoffs in multicriteria games
(Elsevier, 2018)
In this paper, we characterize minimax and Pareto-optimal security payoff vectors for general multicriteria zero-sum matrix games, using properties similar to the ones that have been used in the single criterion case. ...
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Linear prediction of weak records: the discrete case
(Society for Industrial and Applied Mathematics, 2004)
We characterize the family of discrete distributions for which the best mean square error predictor of a future weak record is a linear function of a past or observed weak record.
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An Exact Method for Fractional Goal Programming
(Springer, 2004-01-04)
Goal Programming with fractional objectives can be reduced to mathematical programming with a linear objective under linear and quadratic constraints, thus optimal solutions can be obtained by using existing Global ...
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Finding GM-estimators with global optimization techniques
(Springer, 2001-01-01)
In this note we address the problem of finding the GM-estimator for the location parameter of a univariate random variable. When this problem is non-convex but d.c. one can use a standard covering method, which, in the ...
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Sum-of-squares clustering on networks
(University of Belgrade, 2011)
Finding p prototypes by minimizing the sum of the squared distances from a set of points to its closest prototype is a well-studied problem in clustering, data analysis and continuous location. In this note, this very ...
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Pareto optimality conditions and duality for vector quadratic fractional optimization problems
(Hindawi, 2014)
One of the most important optimality conditions to aid in solving a vector optimization problem is the first-order necessary optimality condition that generalizes the Karush-Kuhn-Tucker condition. However, to obtain the ...
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Contaminación metálica en los sedimentos litorales del norte del Golfo de Cádiz (SO de España)
(Sociedad Geológica de España, 1997)
El estudio geoquímico de los sedimentos superficiales del litoral de Huelva ha permitido establecer el área marina bajo la influencia de las aguas muy contaminadas de los ríos Tinto y Odiel. Esta zona está localizada al ...
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La Encuesta de Población Activa: aspectos metodológicos
(Universidad de Huelva, 1996)
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A comparison of formulations and solution methods for the minimum-envy location problem. Additional results
(2008)
We consider a discrete facility location problem with a new form of equity criterion. The model discussed in the paper analyzes the case where demand points only have strict preference order on the sites where the plants ...
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Tests for the equality of conditional variance functions in nonparametric regression
(Institute of Mathematical Statistics, 2015)
In this paper we are interested in checking whether the conditional variances are equal in k ≥ 2 location-scale regression models. Our procedure is fully nonparametric and is based on the comparison of the error distributions ...