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Mostrando ítems 321-330 de 504
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On approximate Monetary Unit Sampling
(ELSEVIER SCIENCE BV, 2011-09-28)
Monetary Unit Sampling (MUS), also known as Dollar-Unit Sampling, is a popular sampling strategy in Auditing, in which all units are to be randomly selected with probabilities proportional to the book value. However, if ...
Artículo
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Optimal Positioning of a Mobile Service Unit on a Line
(Springer, 2002-03-01)
In this paper we address the problem of locating a mobile response unit when demand is distributed according to a random variable on a line. Properties are proven which reduce the problem to locating a non-mobile facility, ...
Artículo
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The Markovian arrival process: A statistical model for daily precipitation amounts
(ELSEVIER SCIENCE BV, 2013-12-21)
The Markovian arrival process (MAP) is a stochastic process that allows for modeling dependent and non-exponentially distributed observations. Due to its versatility, it has been widely applied in different contexts, from ...
Artículo
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Aplicación de la distribución de Poisson al análisis autoecológico de Ammonia tepida (Foraminifera) en medios estuarinos del suroeste de España
(Universidad de Huelva, 2004)
This work analyzes the populations of Ammonia tepida (Foraminifera) In the southwestern Spanish estuaries with the application of the Poisson's distribution. Although the general model is unsatisfactory for a possible ...
Artículo
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A biobjective method for sample allocation in stratified sampling
(ELSEVIER SCIENCE BV, 2006-02-16)
The two main and contradicting criteria guiding sampling design are accuracy of estimators and sampling costs. In stratified random sampling, the sample size must be allocated to strata in order to optimize both objectives. ...
Artículo
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VNS heuristic for the (r|p)-centroid problem on the plane
(Elsevier, 2012-12-01)
In the (r | p)-centroid problem, two players, called leader and follower, open facilities to service clients. We assume that clients are identified with their location on the Euclidean plane, and facilities can be opened ...
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Ponencia
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Generalizations of nondifferentiable convex functions and some characterizations
(1991)
In this paper we generalize the convex functions, defining the concept of preconvex function and we study some characterizations by intervals, some characterizations by polytopes, some characterizations by level sets, ...
Artículo
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On Mathematical Optimization for the visualization of frequencies and adjacencies as rectangular maps
(ELSEVIER SCIENCE BV, 2018-02-18)
In this paper, we address the problem of visualizing a frequency distribution and an adjacency relation attached to a set of individuals. We represent this information using a rectangular map, i.e., a subdivision of a ...
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Dominating sets for convex functions with some applications
(Springer, 1998-02)
A number of optimization methods require as a rst step the construction of a dominating set (a set containing an optimal solution) enjoying properties such as compactness or convexity. In this note we address the problem ...