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Artículo
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A mathematical programming approach to overlapping community detection
(Elsevier, 2022-06-02)
We propose a new optimization model to detect overlapping communities in networks. The model elaborates suggestions contained in Zhang et al. (2007), in which overlapping communities were identified through the use of a ...
Artículo
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Estimadores de razón: una revisión
(Universidad Politécnica de Cataluña, 1997)
En este trabajo de revision exponemos los principios básicos de la utilización de información adicional en la estimación de parámetros definidos sobre poblaciones finitas, mediante el empleo de estimadores de razón. Aunque ...
Artículo
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Unequal probability sampling from a finite population: A multicriteria approach
(ELSEVIER SCIENCE BV, 2010-03-01)
In this note we address the problem of determining selection probabilities for multipurpose surveys, when the aim is the simultaneous minimization of variances for each variable under study. A characterization of the set ...
Artículo
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Analysis of the barriers to the adoption of zero-emission vehicles in Spain
(Elsevier, 2022)
This paper investigates Spanish drivers’ perceptions of the main barriers existing in Spain to the purchase of zero-emission vehicles (ZEVs). Following a comprehensive literature review in this field, this paper ...
Artículo
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Robust positioning of service units
(Taylor & Francis, 2003)
In this paper, we address the problem of locating mobile service units to cover random incidents. The model does not assume complete knowledge of the probability distribution of the location of the incident to be covered. ...
Artículo
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Multi-criteria analysis with partial information about the weighting coefficients
(ELSEVIER SCIENCE BV, 1993-04-01)
In this paper we address the problem of ranking a set of alternatives with partial information about the weighting coefficients. We introduce a family of quasiorders that are easily interpretable and manageable, which ...
Tesis Doctoral
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Conic programming for routing and location problems
(2024-01-19)
Esta tesis doctoral desarrolla nuevos problemas en el campo de los modelos de transporte, con una perspectiva orientada al uso de drones. En este trabajo se definen nuevos modelos de transporte, tomando ciertos elementos ...
Artículo
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Local influence on the general linear model
(Indian Statistical Institute, 1998)
We study the Local Influence on the General Linear Model with a perturbation scheme in the variance-covariance matrix of the random errors. The comparison of the results obtained and the conditional bias have been used to ...
Artículo
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Visualizing proportions and dissimilarities by space-filling maps: a large neighborhood search approach
(Elsevier, 2017-02)
In this paper we address the problem of visualizing a set of individuals, which have attached a statistical value given as a proportion, and a dissimilarity measure. Each individual is represented as a region within the ...
Tesis Doctoral