Artículos (Instituto de Matemáticas de la Universidad de Sevilla (Antonio de Castro Brzezicki)): Recent submissions
Now showing items 1-20 of 105
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Article
Undominated Sequences of Integrable Functions
(Springer Nature, 2020-10-20)In this paper, we investigate to what extent the conclusion of the Lebesgue dominated convergence theorem holds if the ...
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Article
The soft-margin Support Vector Machine with ordered weighted average
(Elsevier, 2021)This paper deals with a cost sensitive extension of the standard Support Vector Machine (SVM) using an ordered weighted ...
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Article
On sparse optimal regression trees
(Elsevier, 2021-12-18)In this paper, we model an optimal regression tree through a continuous optimization problem, where a compromise between ...
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Article
Real-Analytic Non-Integrable Functions on the Plane with Equal Iterated Integrals
(Springer, 2021-12-16)In this note, a vector space of real-analytic functions on the plane is explicitly constructed such that all its nonzero ...
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Article
Average radial integrability spaces of analytic functions
(Academic Press Inc., 2022)In this paper we introduce the family of spaces RM(p, q), 1 ≤ p, q ≤ +∞. They are spaces of holomorphic functions in the ...
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Article
Extended eigenvalues of composition operators
(Elsevier, 2021-12-15)A complex scalar λ is said to be an extended eigenvalue of a bounded linear operator A on a complex Hilbert space if there ...
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Presentation
Optimisation of Aiming Strategies in Solar Tower Power Plants
(AIP, 2018-11-08)Inclement weather effects have a direct impact on the efficiency of a Solar Power Tower plant and have the potential to ...
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Article
Sparsity in optimal randomized classification trees
(ELSEVIER SCIENCE BV, 2019-12-16)Decision trees are popular Classification and Regression tools and, when small-sized, easy to interpret. Traditionally, a ...
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Article
rs-Sparse principal component analysis: A mixed integer nonlinear programming approach with VNS
(PERGAMON-ELSEVIER SCIENCE LTD, 2013-05-03)Principal component analysis is a popular data analysis dimensionality reduction technique, aiming to project with minimum ...
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Article
Spotting Key Members in Networks: Clustering-Embedded Eigenvector Centrality
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2020-11-03)Identifying key members in a social network is critical to understand the underlying system behavior. Whereas there are ...
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Article
Selection of time instants and intervals with Support Vector Regression for multivariate functional data
(PERGAMON-ELSEVIER SCIENCE LTD, 2020-07-19)When continuously monitoring processes over time, data is collected along a whole period, from which only certain time ...
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Article
Threshold robustness in discrete facility location problems: a bi-objective approach
(Springer, 2015-04-24)The two best studied facility location problems are the p-median problem and the uncapacitated facility location problem ...
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Article
Visualization of complex dynamic datasets by means of mathematical optimization
(PERGAMON-ELSEVIER SCIENCE LTD, 2019-07-01)In this paper we propose an optimization model and a solution approach to visualize datasets which are made up of individuals ...
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Article
On support vector machines under a multiple-cost scenario
(Springer, 2018-07-31)Support vector machine (SVM) is a powerful tool in binary classification, known to attain excellent misclassification ...
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Article
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 ...
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Article
On Building Online Visualization Maps for News Data Streams by Means of Mathematical Optimization
(Mary Ann Liebert, INC, 2018-06-01)In this article we develop a novel online framework to visualize news data over a time horizon. First, we perform a Natural ...
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Article
Variable selection in classification for multivariate functional data
(ELSEVIER SCIENCE INC, 2019-05-01)When classification methods are applied to high-dimensional data, selecting a subset of the predictors may lead to an ...
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Article
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 ...
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Article
Optimisation of aiming strategies in Solar Power Tower plants
(PERGAMON-ELSEVIER SCIENCE LTD, 2017-10-15)The distribution of temperature on a Solar Power Tower (SPT) plant receiver directly affects the lifespan of the structure ...
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Article
Continuous optimisation techniques for optimal aiming strategies in solar power tower plants
(PERGAMON-ELSEVIER SCIENCE LTD, 2019-01-01)Optimising the aiming strategy is crucial for Solar Power Tower plants, in order to maximise the energy generated, whilst ...