Data

NameCarrizosa Priego, Emilio José
DepartmentEstadística e Investigación Operativa
Knowledge areaEstadística e Investigación Operativa
Professional categoryCatedrático de Universidad
E-mailRequest
           

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  • Items

    150

  • Visits

    9794

  • Downloads

    30904

  Publications

 

Article
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Analysis of an aggregate loss model in a Markov renewal regime

Ramírez Cobo, Josefa; Carrizosa Priego, Emilio José; Lillo Rodríguez, Rosa Elvira (ELSEVIER SCIENCE INC, 2020-12-22)
In this article we consider an aggregate loss model with dependent losses. The loss oc- currence process is governed by a ...
Article
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Spotting Key Members in Networks: Clustering-Embedded Eigenvector Centrality

Carrizosa Priego, Emilio José; Marín Pérez, Alfredo; Pelegrín García, Mercedes (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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Selection of time instants and intervals with Support Vector Regression for multivariate functional data

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Jiménez Cordero, María Asunción; Martín Barragán, Belén (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 ...
Article
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Integer constraints for enhancing interpretability in linear regression

Carrizosa Priego, Emilio José; Olivares Nadal, Alba Victoria; Ramírez Cobo, Josefa (Institut d´Estadística de Catalunya (Idescat), 2020-04-01)
One of the main challenges researchers face is to identify the most relevant features in a prediction model. As a consequence, ...
Article
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A cost-sensitive constrained Lasso

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Ramírez Cobo, Josefa; Sillero Denamiel, María Remedios (Springer, 2020-03-02)
The Lasso has become a benchmark data analysis procedure, and numerous variants have been proposed in the literature. ...
Article
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Sparsity in optimal randomized classification trees

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Molero Río, Cristina; Romero Morales, María Dolores (ELSEVIER SCIENCE BV, 2019-12-16)
Decision trees are popular Classification and Regression tools and, when small-sized, easy to interpret. Traditionally, a ...
PhD Thesis
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New methods and results in the optimisation of solar power tower plants

Carrizosa Priego, Emilio José; Fernández Cara, Enrique; Ashley, Thomas Ian (2019-12-03)
Renewable energy technology has seen great advances in recent decades, combined with an ever increasing interest in the ...
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Embedding the production policy in location-allocation decisions

Carrizosa Priego, Emilio José; Olivares Nadal, Alba Victoria; Ramírez Cobo, Josefa (Springer, 2019-11-21)
This paper investigates how the production policy, as well as other factors, affect the facility location-allocation ...
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Visualization of complex dynamic datasets by means of mathematical optimization

Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Romero Morales, María Dolores (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 ...
Final Degree Project
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Mathematical optimization in deep learning

Carrizosa Priego, Emilio José; Blanquero Bravo, Rafael; Ramírez Ayerbe, Miren Jasone (2019-06-01)
Mathematical Optimization plays a pillar role in Machine Learning (ML) and Neural Networks (NN) are amongst the most popular ...
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Variable selection in classification for multivariate functional data

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Jiménez Cordero, María Asunción; Martín Barragán, Belén (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 ...
PhD Thesis
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Classification and regression with functional data: a mathematical optimization approach.

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Jiménez Cordero, María Asunción (2019-02-15)
El objetivo de esta tesis doctoral es desarrollar nuevos métodos para la clasificación y regresión supervisada en el ...
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Heliostat field cleaning scheduling for Solar Power Tower plants: a heuristic approach

Ashley, Thomas Ian; Carrizosa Priego, Emilio José; Fernández Cara, Enrique (Elsevier, 2019-02-01)
Soiling of heliostat surfaces due to local climate has a direct impact on their optical efficiency and therefore a direct ...
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Continuous optimisation techniques for optimal aiming strategies in solar power tower plants

Ashley, Thomas Ian; Carrizosa Priego, Emilio José; Fernández Cara, Enrique (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 ...
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Functional-bandwidth kernel for Support Vector Machine with Functional Data_An alternating optimization algorithm

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Jiménez Cordero, María Asunción; Martín Barragán, Belén (ELSEVIER SCIENCE BV, 2018-11-24)
Functional Data Analysis (FDA) is devoted to the study of data which are functions. Support Vector Ma- chine (SVM) is a ...
Presentation
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Optimisation of Aiming Strategies in Solar Tower Power Plants

Ashley, Thomas Ian; Carrizosa Priego, Emilio José; Fernández Cara, Enrique (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 ...
Article
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On support vector machines under a multiple-cost scenario

Benítez Peña, Sandra; Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Ramírez Cobo, Josefa (Springer, 2018-07-31)
Support vector machine (SVM) is a powerful tool in binary classification, known to attain excellent misclassification ...
Final Degree Project
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El método de aproximación por media muestral

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; González López, Rafael (2018-06-01)
The sample average approximation (SAA) method is an approach for solving stochastic optimization problems by using Monte ...
Final Degree Project
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Regresión Lasso

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Ramos Castillo, Laura (2018-06-01)
Currently we find regression problems in many branches of science, so, as better is the model we use to select variables, ...
Final Degree Project
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Optimización matemática en problemas de la Física

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Brenes Ferreiro, María de las Mercedes (2018-06-01)
In this work, Spin Glasses with Ising Sping model are studied. The objetive is the computation of the magnetic partition ...
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On Building Online Visualization Maps for News Data Streams by Means of Mathematical Optimization

Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Hardt, Daniel; Romero Morales, María Dolores (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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Cost-sensitive feature selection for support vector machines

Benítez Peña, Sandra; Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Ramírez Cobo, Josefa (Elsevier, 2018-03-01)
Feature Selection (FS) is a crucial procedure in Data Science tasks such as Classification, since it identifies the relevant ...
Article
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On Mathematical Optimization for the visualization of frequencies and adjacencies as rectangular maps

Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Romero Morales, María Dolores (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 ...
Final Degree Project
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Inferencia bayesiana

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Ortiz Padilla, Íñigo (2018-01-01)
The subject of this document is Bayesian Inference, an inference system based on Bayes’ Formula. In the first chapter we ...
Article
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Optimisation of aiming strategies in Solar Power Tower plants

Ashley, Thomas Ian; Carrizosa Priego, Emilio José; Fernández Cara, Enrique (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 ...
PhD Thesis
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Mathematical optimization for the visualization of complex datasets

Carrizosa Priego, Emilio José; Romero Morales, María Dolores; Guerrero Lozano, Vanesa (2017-06-26)
This PhD dissertation focuses on developing new Mathematical Optimization models and solution approaches which help to ...
Master's Final Project
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Aprendizaje supervisado mediante random forests

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Molero del Río, María Cristina (2017-06-01)
Muchos problemas de la vida real pueden modelarse como problemas de clasificación, tales como la detección temprana de ...
Master's Final Project
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Optimización de funciones DC. El algoritmo DCA

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Valverde Martín, Carlos (2017-06-01)
Article
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A sparsity-controlled vector autoregressive model

Carrizosa Priego, Emilio José; Olivares Nadal, Alba Victoria; Ramírez Cobo, Josefa (Oxford University Press, 2017-04-01)
Vector autoregressive (VAR) models constitute a powerful and well studied tool to analyze multivariate time series. Since ...
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A biobjective approach to recoverable robustness based on location planning

Carrizosa Priego, Emilio José; Goerigk, Marc; Schöbel, Anita (ELSEVIER SCIENCE BV, 2017-02-16)
Finding robust solutions of an optimization problem is an important issue in practice, and various con- cepts on how to ...
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Visualizing proportions and dissimilarities by space-filling maps: a large neighborhood search approach

Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Romero Morales, María Dolores (Elsevier, 2017-02-01)
In this paper we address the problem of visualizing a set of individuals, which have attached a statistical value given ...
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Visualizing data as objects by DC (difference of convex) optimization

Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa; Romero Morales, María Dolores (Springer, 2017-01-01)
In this paper we address the problem of visualizing in a bounded region a set of individuals, which has attached a ...
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An optimization tool to design the field of a solar power tower plant allowing heliostats of different sizes

Carrizosa Priego, Emilio José; Domínguez Bravo, Carmen Ana; Fernández Cara, Enrique; Quero García, Manuel (Wiley, 2017-01-01)
The design of a Solar Power Tower plant involves the optimization of the heliostat field layout. Fields are usually designed ...
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p-facility Huff location problem on networks

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Gazdag-Tóth, Boglárka; Nogales Gómez, Amaya (Elsevier, 2016-11-16)
The p-facility Huff location problem aims at locating facilities on a competitive environment so as to maximize the market ...
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On Extreme Concentrations in Chemical Reaction Networks with Incomplete Measurements

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Chis, Oana; Esteban, Noemí; Jiménez Cordero, María Asunción; Rodríguez, José Francisco; Sillero Denamiel, María Remedios (ACS, 2016-11-09)
A fundamental problem in the analysis of chemical reactions networks consists of identifying concentration values along ...
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Maximal covering location problems on networks with regional demand

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Gazdag-Tóth, Boglárka (Elsevier, 2016-10-01)
Covering problems are well studied in the Operations Research literature under the assumption that both the set of users ...
PhD Thesis
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Enhancing robustness and sparsity via mathematical optimization

Carrizosa Priego, Emilio José; Ramírez Cobo, Josefa; Olivares Nadal, Alba Victoria (2016-09-22)
Esta tesis se centra en derivar métodos robustos o dispersos bajo la perspectiva de la optimización para problemas que ...
Master's Final Project
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A new multivariate data analysis model: constrained Naïve Bayes

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Ramírez Cobo, Josefa; Sillero Denamiel, María Remedios (2016-06-24)
Master's Final Project
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Constrained support vector machines theory and applications to health science

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Ramírez Cobo, Josefa; Benítez Peña, Sandra (2016-06-24)
En los últimos años, la ciencia de los datos se ha convertido en una herramienta muy importante para tratar datos, así ...
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A global optimization method for model selection in chemical reactions networks

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Jiménez Cordero, María Asunción; Rodríguez, José Francisco (PERGAMON-ELSEVIER SCIENCE LTD, 2016-06-07)
Model inference is a challenging problem in the analysis of chemical reactions networks. In order to empirically test ...
Final Degree Project
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Problemas de localización competitiva. El modelo de Huff

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Molero del Río, María Cristina (2016-06-01)
The ability of a firm to produce goods and/or services and market them effectively depends largely on the location of its ...
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Field-design optimization with triangular heliostat pods

Domínguez Bravo, Carmen Ana; Bode, Sebastian James; Heiming, Gregor; Richter, Pascal; Carrizosa Priego, Emilio José; Fernández Cara, Enrique; Frank, Martin; Gauché, Paul (American Institute of Physics, 2016-05-01)
In this paper the optimization of a heliostat field with triangular heliostat pods is addressed. The use of structures ...
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Minimizing the passengers' traveling time in the stop location problem

Carrizosa Priego, Emilio José; Harbering, Jonas; Schöbel, Anita (TAYLOR & FRANCIS LTD, 2016-05-01)
In this paper we consider the location of stops along the edges of an already existing public transportation network. The ...
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Robust newsvendor problem with autoregressive demand

Carrizosa Priego, Emilio José; Olivares Nadal, Alba Victoria; Ramírez Cobo, Josefa (Elsevier, 2016-04-01)
This paper explores the classic single-item newsvendor problem under a novel setting which combines temporal dependence ...
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Solving multifacility Huff location models on networks using metaheuristic and exact approaches

Grohmann, Sanja; Urošević, Dragan; Carrizosa Priego, Emilio José; Mladenović, Nenad (PERGAMON-ELSEVIER SCIENCE LTD, 2016-03-16)
In this paper we consider multifacility Huff facility location problem on networks. First, we introduce a slight modification ...
Article
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Clustering categories in support vector machines

Carrizosa Priego, Emilio José; Nogales Gómez, Amaya; Romero Morales, María Dolores (Elsevier, 2016-02-01)
The support vector machine (SVM) is a state-of-the-art method in supervised classification. In this paper the Cluster ...
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Strongly agree or strongly disagree? Rating features in support vector machines

Carrizosa Priego, Emilio José; Nogales Gómez, Amaya; Romero Morales, María Dolores (Elsevier, 2016-02-01)
In linear classifiers, such as the Support Vector Machine (SVM), a score is associated with each feature and objects are ...
PhD Thesis
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Optimization models in solar power tower plant design. Design of the heliostat field and the tower receivers

Carrizosa Priego, Emilio José; Fernández Cara, Enrique; Quero García, Manuel; Domínguez Bravo, Carmen Ana (2016-01-08)
El diseño de plantas solares con tecnología de torre (utilizaremos las siglas en inglés SPT) comenzó a ser estudiado en ...
Final Degree Project
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Support vector regression : propiedades y aplicaciones

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Martín Guareño, Juan José (2016-01-01)
Statistical learning plays a key role in many areas of science, finance and industry. In particular, supervised learning ...
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Kernel Penalized K-means: A feature selection method based on Kernel K-means

Maldonado Alarcón, Sebastián; Carrizosa Priego, Emilio José; Weber, Richard (ELSEVIER SCIENCE BV, 2015-11-20)
We present an unsupervised method that selects the most relevant features using an embedded strategy while maintaining the ...
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Optimization of multiple receivers solar power tower systems

Carrizosa Priego, Emilio José; Domínguez Bravo, Carmen Ana; Fernández Cara, Enrique; Quero García, Manuel (Elsevier, 2015-10-01)
In this article a new procedure to optimize the design of a Multiple Receivers Solar Power Tower system is presented. The ...
Article
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Comments on: Static and dynamic source locations in undirected networks

Carrizosa Priego, Emilio José (Springer, 2015-09-25)
Final Degree Project
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Mathematical optimization and social networks

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Díaz Mena, Lourdes (2015-06-22)
Final Degree Project
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Statistical models in pharmacokinetics and pharmacodynamics

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Benítez Peña, Sandra (2015-06-21)
Final Degree Project
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Mathematical optimization and feature selection

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Casado Reinaldos, Alejandro (2015-06-21)
Article
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A heuristic method for simultaneous tower and pattern-free field optimization on solar power systems

Carrizosa Priego, Emilio José; Domínguez Bravo, Carmen Ana; Fernández Cara, Enrique; Quero García, Manuel (Elsevier, 2015-05-01)
A heuristic method for optimizing a solar power tower system is proposed, in which both heliostat field (heliostat locations ...
Article
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Threshold robustness in discrete facility location problems: a bi-objective approach

Carrizosa Priego, Emilio José; Ushakov, Anton; Vasilyev, Igor (Springer, 2015-04-24)
The two best studied facility location problems are the p-median problem and the uncapacitated facility location problem ...
PhD Thesis
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Mixed Integer Nonlinear Optimization. Applications to Competitive Location and Supervised Classification

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Romero Morales, María Dolores; Nogales Gómez, Amaya (2015-02-25)
This PhD dissertation focuses on the study of Mixed Integer Nonlinear Programming (MINLP) problems [34] for two important ...
Presentation
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Robust p-median problem with vector autoregressive demands

Carrizosa Priego, Emilio José; Olivares Nadal, Alba Victoria; Ramírez Cobo, Josefa (2015-01-01)
Article
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Biobjective sparse principal component analysis

Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa (Academic Press Inc., 2014-08-21)
Principal Components are usually hard to interpret. Sparseness is considered as one way to improve interpretability, and ...
Article
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New heuristic for harmonic means clustering

Carrizosa Priego, Emilio José; Alguwaizani, Abdulrahman; Hansen, Pierre; Mladenović, Nenad (Springer, 2014-05-06)
It is well known that some local search heuristics for K-clustering problems, such as k-means heuristic for minimum ...
Article
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A nested heuristic for parameter tuning in support vector machines

Carrizosa Priego, Emilio José; Martín Barragán, Belén; Romero Morales, María Dolores (Elsevier, 2014-03-01)
The default approach for tuning the parameters of a Support Vector Machine (SVM) is a grid search in the parameter space. ...
Article
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Heuristic approaches for support vector machines with the ramp loss

Carrizosa Priego, Emilio José; Nogales Gómez, Amaya; Romero Morales, María Dolores (Springer, 2014-03-01)
Recently, Support Vector Machines with the ramp loss (RLM) have attracted attention from the computational point of view. ...
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Linear separation and approximation by minimizing the sum of concave functions of distances

Plastria, Frank; Carrizosa Priego, Emilio José (Springer, 2014-03-01)
One recently proposed criterion to separate two data sets in Classification is to use a hyperplane that minimizes the sum ...
Chapter of Book
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Vulnerability assessment of spatial networks: models and solutions

Fouilhoux, Pierre; Neves Gouveia, Luis Eduardo; Mahjoub, A. Ridha; Paschos, Vangelis T.; Álvarez Miranda, Eduardo; Candia Véjar, Alfredo Enrique; Carrizosa Priego, Emilio José; Pérez Galarce, Francisco Javier (Springer, 2014-01-01)
In this paper we present a collection of combinatorial optimization problems that allows to assess the vulnerability of ...
Article
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The Markovian arrival process: A statistical model for daily precipitation amounts

Ramírez Cobo, Josefa; Marzo Artigas, Xavier; Olivares Nadal, Alba Victoria; Alvarez Francoso, José; Carrizosa Priego, Emilio José; Pita López, María Fernanda (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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Solving the median problem with continuous demand on a network

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José (Springer, 2013-12-01)
Where to locate one or several facilities on a network so as to minimize the expected users-closest facility transportation ...
Article
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Locating a semi-obnoxious covering facility with repelling polygonal regions

Plastria, Frank; Gordillo, José; Carrizosa Priego, Emilio José (ELSEVIER SCIENCE BV, 2013-11-01)
A facility is to be located in the Euclidean plane to serve certain sites by covering them closely. Simultaneously, a set ...
Article
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A global optimisation approach for parameter estimation of a mixture of double Pareto lognormal and lognormal distributions

Carrizosa Priego, Emilio José; Jocković, Jelena; Ramírez Cobo, Josefa (PERGAMON-ELSEVIER SCIENCE LTD, 2013-10-30)
The double Pareto Lognormal(dPlN) statistical distribution, defined interms of both an exponentiated skewed Laplace ...
Article
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Variable neighborhood search for minimum sum-of-squares clustering on networks

Carrizosa Priego, Emilio José; Mladenović, Nenad; Todosijević, Raca (ELSEVIER SCIENCE BV, 2013-10-13)
Euclidean Minimum Sum-of-Squares Clustering amounts to finding p prototypes by minimizing the sum of the squared Euclidean ...
Article
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Single-facility huff location problems on networks

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Nogales Gómez, Amaya; Plastria, Frank (Springer, 2013-09-17)
Huff location problems have been extensively analyzed within the field of competitive continuous location. In this work, ...
Article
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Multi-instance classification through spherical separation and VNS

Plastria, Frank; Carrizosa Priego, Emilio José; Gordillo, José (PERGAMON-ELSEVIER SCIENCE LTD, 2013-05-17)
A two-class classification problem is considered where the objects to be classified are bags of instances in d-space. The ...
Article
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rs-Sparse principal component analysis: A mixed integer nonlinear programming approach with VNS

Carrizosa Priego, Emilio José; Guerrero Lozano, Vanesa (PERGAMON-ELSEVIER SCIENCE LTD, 2013-05-03)
Principal component analysis is a popular data analysis dimensionality reduction technique, aiming to project with minimum ...
Article
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Time series interpolation via global optimization of moments fitting

Carrizosa Priego, Emilio José; Olivares Nadal, Alba Victoria; Ramírez Cobo, Josefa (ELSEVIER SCIENCE BV, 2013-04-16)
Most time series forecasting methods assume the series has no missing values. When missing values exist, interpolation ...
Article
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Supervised classification and mathematical optimization

Carrizosa Priego, Emilio José; Romero Morales, María Dolores (Elsevier, 2013-01-01)
Data Mining techniques often ask for the resolution of optimization problems. Supervised Classification, and, in particular, ...
Article
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Solving Multifacility Huff Location Models on Networks Using Variable Neighborhood Search and Multi-Start Local Search Metaheuristics

Rocksandic, Sanja; Carrizosa Priego, Emilio José; Urosevic, Dragan; Mladenović, Nenad (Elsevier, 2012-12-01)
We consider multifacility Huff location problems on networks. The mixed integer nonlinear optimization problem is solved using Variable Neighborhood Search and Multi-Start Local Search metaheuristics. Computational experience is reported.
Article
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VNS heuristic for the (r|p)-centroid problem on the plane

Daydov, Ivan; Kochetov, Yuri; Carrizosa Priego, Emilio José (Elsevier, 2012-12-01)
In the (r | p)-centroid problem, two players, called leader and follower, open facilities to service clients. We assume ...
Article
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A computational study of a nonlinear minsum facility location problem

Carrizosa Priego, Emilio José; Ushakov, Anton; Vasilyev, Igor (PERGAMON-ELSEVIER SCIENCE LTD, 2012-01-31)
A discrete location problem with nonlinear objective is addressed. A set of p plants is to be open to serve a given set ...
Presentation
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Modelo estadístico para la predicción del índice estandarizado de sequía pluviométrica (IESP) en Andalucía

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Pita López, María Fernanda; Camarillo Naranjo, Juan Mariano; Álvarez Francoso, José Ignacio (Universidad de Salamanca, 2012-01-01)
La comunicación aborda el diseño de un modelo estadístico de predicción dinámica de la sequía en Andalucía y su persistencia ...
Article
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Gaussian variable neighborhood search for continuous optimization

Carrizosa Priego, Emilio José; Drazic, Milan; Drazic, Zorica; Mladenović, Nenad (PERGAMON-ELSEVIER SCIENCE LTD, 2012-01-01)
Variable Neighborhood Search (VNS) has shown to be a powerful tool for solving both discrete and box-constrained continuous ...
Article
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Maximizing upgrading and downgrading margins for ordinal regression

Carrizosa Priego, Emilio José; Martín Barragán, Belén (Springer, 2011-12-01)
In ordinal regression, a score function and threshold values are sought to classify a set of objects into a set of ranked ...
Article
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Locating a competitive facility in the plane with a robustness criterion

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Hendrix, Eligius M.T. (Elsevier, 2011-11-16)
A new continuous location model is presented and embedded in the literature on robustness in facility location. The ...
Article
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On approximate Monetary Unit Sampling

Carrizosa Priego, Emilio José (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 ...
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Detecting relevant variables and interactions in supervised classification

Carrizosa Priego, Emilio José; Martín Barragán, Belén; Romero Morales, María Dolores (Elsevier, 2011-08-16)
The widely used Support Vector Machine (SVM) method has shown to yield good results in Supervised Classification problems. ...
Article
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A global optimization procedure for the location of a median line in the three-dimensional space

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Schöbel, Anita; Scholz, Daniel (ELSEVIER SCIENCE BV, 2011-06-01)
A global optimization procedure is proposed to find a line in the Euclidean three-dimensional space which minimizes the ...
Article
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Sum-of-squares clustering on networks

Carrizosa Priego, Emilio José; Mladenović, Nenad; Todosijević, Raca (University of Belgrade, 2011-01-01)
Finding p prototypes by minimizing the sum of the squared distances from a set of points to its closest prototype is a ...
Article
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On minimax-regret Huff location models

Bello Garboza, Lenys; Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José (Elsevier, 2011-01-01)
We address the following single-facility location problem: a firm is entering into a market by locating one facility in a ...
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Minmax-distance approximation and separation problems: geometrical properties

Plastria, Frank; Carrizosa Priego, Emilio José (Springer, 2010-04-01)
A center hyperplane in the d-dimensional space minimizes the maximum of its distances from a finite set of points A with ...
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Unequal probability sampling from a finite population: A multicriteria approach

Carrizosa Priego, Emilio José (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 ...
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Alternating local search based VNS for linear classification

Plastria, Frank; Bruyne, Steven de; Carrizosa Priego, Emilio José (Springer, 2010-02-01)
We consider the linear classification method consisting of separating two sets of points in d-space by a hyperplane. We ...
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Binarized support vector machines

Carrizosa Priego, Emilio José; Martín Barragán, Belén; Romero Morales, María Dolores (INFORMS (Institute for Operations Research and Management Sciences), 2010-01-01)
The widely used Support Vector Machine (SVM) method has shown to yield very good results in Supervised Classification ...
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On the norm of a dc function

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José (Springer, 2009-11-12)
It is well known that, if a vector-valued function can be written as difference of componentwise convex functions, the ...
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Continuous location problems and Big Triangle Small Triangle: constructing better bounds

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José (Springer, 2009-11-01)
The Big Triangle Small Triangle method has shown to be a powerful global optimization procedure to address continuous ...
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Locating Objects in the Plane Using Global Optimization Techniques

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Hansen, Pierre (Informs, 2009-10-07)
We address the problem of locating objects in the plane such as segments, arcs of circumferences, arbitrary convex sets, ...
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Different numerical methods in the study of passive scalar transport in a pipeline x-junction

Vicente Rodríguez, William; Salinas Vázquez, Martín; Chávez, C; Carrizosa Priego, Emilio José (ELSEVIER SCIENCE BV, 2009-01-01)
A computational fluid dynamic model is used to analyze the transport processes of a passive scalar generated in the mixing ...
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Optimal expected-distance separating halfspace

Carrizosa Priego, Emilio José; Plastria, Frank (INFORMS (Institute for Operations Research and Management Sciences), 2008-08-01)
One recently proposed criterion to separate two datasets in discriminant analysis, is to use a hyperplane which minimises ...
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Multi-group support vector machines with measurement costs a biobjective approach

Carrizosa Priego, Emilio José; Martín Barragán, Belén; Romero Morales, María Dolores (Elsevier, 2008-03-01)
Support Vector Machine has shown to have good performance in many practical classification settings. In this paper we ...
PhD Thesis
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Optimization-based methods for classification and regression problems with imprecise data

Carrizosa Priego, Emilio José; Plastria, Frank; Gordillo Santofimia, José Feliciano (2008-01-01)
En esta tesis, desarrollamos varias herramientas para resolver problemas de clasificación y regresión donde los elementos ...
Chapter of Book
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Dimensionality Reduction for Classification: Comparison of Techniques and Dimension Choice

Tang, Changjie; Ling, Charles X.; Zhou, Xiaofang; Cercone, Nick J.; Li, Xue; Plastria, Frank; Bruyne, Steven de; Carrizosa Priego, Emilio José (Springer, 2008-01-01)
We investigate the effects of dimensionality reduction using different techniques and different dimensions on six two-class ...
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On the Selection of the Globally Optimal Prototype Subset for Nearest-Neighbor Classification

Carrizosa Priego, Emilio José; Martín Barragán, Belén; Plastria, Frank; Romero Morales, María Dolores (Informs, 2007-07-20)
The nearest-neighbor classifier has been shown to be a powerful tool for multiclass classification. We explore both ...
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A biobjective method for sample allocation in stratified sampling

Carrizosa Priego, Emilio José; Romero Morales, María Dolores (Elsevier, 2007-03-01)
The two main and contradicting criteria guiding sampling design are accuracy of estimators and sampling costs. In stratified ...
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Inferring efficient weights from pairwise comparison matrices

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo (Springer, 2006-10-01)
Several multi-criteria-decision-making methodologies assume the existence of weights associated with the different criteria, ...
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Two-group classification via a biobjective margin maximization model

Carrizosa Priego, Emilio José; Martín Barragán, Belén (ELSEVIER SCIENCE BV, 2006-09-16)
In this paper we propose a biobjective model for two-group classification via margin maximization, in which the margins ...
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An exact global optimization method for deriving weights from pairwise comparison matrices

Carrizosa Priego, Emilio José; Messine, Frédéric (Springer, 2006-09-06)
Some multiple-criteria decision making methods rank actions by associating weights to the different criteria or actions, ...
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A biobjective method for sample allocation in stratified sampling

Carrizosa Priego, Emilio José; Romero Morales, María Dolores (ELSEVIER SCIENCE BV, 2006-02-16)
The two main and contradicting criteria guiding sampling design are accuracy of estimators and sampling costs. In stratified ...
PhD Thesis
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Programación matemática para las máquinas de vector de apoyo: mathematical programming for support vector machines

Romero Morales, María Dolores; Carrizosa Priego, Emilio José; Martín Barragán, Belén (2006-01-01)
En esta Tesis Doctoral, presentamos algunas propuestas en las que las herramientas de la Programación Matemática se usan ...
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Deriving Weights in Multiple-Criteria Decision Making with Support Vector Machines

Carrizosa Priego, Emilio José (Springer, 2006-01-01)
A key problem in Multiple-Criteria Decision Making is how to measure the importance of the different criteria when just a ...
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Máquinas de vector de apoyo: problemas de programación matemática en clasificación

Carrizosa Priego, Emilio José; Martín Barragán, Belén (Sociedad de Estadística e Investigación Operativa, 2005-06-01)
Article
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Optimal location and design of a competitive facility

Plastria, Frank; Carrizosa Priego, Emilio José (Springer, 2004-06-01)
A single facility has to be located in competition with fixed existing facilities of similar type. Demand is supposed to ...
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An Exact Method for Fractional Goal Programming

Audet, Charles; Carrizosa Priego, Emilio José; Hansen, Pierre (Springer, 2004-01-04)
Goal Programming with fractional objectives can be reduced to mathematical programming with a linear objective under linear ...
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Robust facility location

Carrizosa Priego, Emilio José; Nickel, Stefan (Springer, 2003-11-01)
Let A be a nonempty finite subset of the plane representing the geographical coordinates of a set of demand points (towns, ...
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Improving Interval Analysis Bounds by Translations

Carrizosa Priego, Emilio José; Hansen, Pierre; Messine, Frédéric (Springer, 2003-08-26)
We explore how a simple linear change of variable affects the inclusion functions obtained with Interval Analysis methods. ...
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Problemas de clasificación y optimización

Carrizosa Priego, Emilio José (Real Academia Sevillana de Ciencias, 2003-01-01)
El desarrollo de técncias que permitan clasificar entes (seres vivos, elementos, problemas, ... ) en distintas categorías ...
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Generalized goal programming: polynomial methods and applications

Carrizosa Priego, Emilio José; Fliege, Jörg (Springer, 2002-12-01)
In this paper we address a general Goal Programming problem with linear objectives, convex constraints, and an arbitrary ...
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Pareto-Optimality in Linear Regression

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo; Fernández, F. R.; Muñoz, M.; Puerto Albandoz, Justo (Academic Press Inc. Elsevier Science, 2002-05-25)
In this paper the linear regression problem is studied in the context of vector optimization theory. The set of Pareto-optimal ...
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Optimal Positioning of a Mobile Service Unit on a Line

Carrizosa Priego, Emilio José; Muñoz Márquez, Manuel; Puerto Albandoz, Justo (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 ...
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A fractional model for locating semi-desirable facilities on networks

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo (ELSEVIER SCIENCE BV, 2002-01-01)
In this paper, we address the problem of locating a series of facilities on a network maximizing the average distance to ...
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A DC biobjective location model

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José (Springer, 2002-01-01)
In this paper we address the biobjective problem of locating a semiobnoxious facility, that must provide service to a given ...
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An optimal bound for d.c. programs with convex constraints

Carrizosa Priego, Emilio José (Springer, 2001-04-01)
A well-known strategy for obtaining a lower bound on the minimum of a d.c. function f−g over a compact convex set S⊂ℝn ...
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Finding the principal points of a random variable

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo; Castaño Martínez, Antonia; Romero Morales, María Dolores (EDP Sciences, 2001-01-01)
The p-principal points of a random variable X with finite second moment are those p points in R minimizing the expected ...
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Finding GM-estimators with global optimization techniques

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo (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. ...
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Gauge Distances and Median Hyperplanes

Plastria, Frank; Carrizosa Priego, Emilio José (Springer, 2001-01-01)
A median hyperplane in d-dimensional space minimizes the weighted sum of the distances from a finite set of points to it. ...
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On Covering Methods for D.C. Optimization

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José (Springer, 2000-11-01)
Covering methods constitute a broad class of algorithms for solving multivariate Global Optimization problems. In this ...
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Optimization of the Norm of a Vector-Valued DC Function and Applications

Blanquero Bravo, Rafael; Carrizosa Priego, Emilio José (Springer, 2000-11-01)
In this paper, we show that a DC representation can be obtained explicitly for the composition of a gauge with a DC mapping, ...
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Solving nonconvex planar location problems by nite dominating sets

Carrizosa Priego, Emilio José; Hamacher, Horst W.; Klein, Rolf; Nickel, Stefan (Springer, 2000-10-01)
It is well-known that some of the classical location problems with polyhedral gauges can be solved in polynomial time by ...
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Dominators for multiple-objective quasiconvex maximization problems

Carrizosa Priego, Emilio José; Plastria, Frank (Springer, 2000-01-06)
In this paper we address the problem of finding a dominator for a multiple-objective maximization problem with quasiconvex ...
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Undesirable facility location with minimal covering objectives

Plastria, Frank; Carrizosa Priego, Emilio José (ELSEVIER SCIENCE BV, 1999-11-19)
An undesirable facility is to be located within some feasible region of any shape in the plane or on a planar network. ...
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Combining minsum and minmax: A goal programming approach

Carrizosa Priego, Emilio José; Romero Morales, María Dolores (INST OPERATIONS RESEARCH MANAGEMENT SCIENCES, 1999-07-01)
A number of methods for multiple-objective optimization problems (MOP) give as solution to MOP the set of optimal solutions ...
PhD Thesis
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Localización de servicios en el plano mediante técnicas de Optimización d.c.

Carrizosa Priego, Emilio José; Infante Macías, Rafael; Blanquero Bravo, Rafael (1999-01-01)
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Polynomial algorithms for parametric minquantile and maxcovering planar location problems with locational constraints

Carrizosa Priego, Emilio José; Plastria, Frank (Springer, 1998-12-01)
A location is sought within some convex region of the plane for the central site of some public service to a finite number ...
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Locating an undesirable facility by generalized cutting planes

Carrizosa Priego, Emilio José; Plastria, Frank (Informs, 1998-08-03)
We address the problem of locating an undesirable facility within a compact set by minimizing a strictly decreasing boundedly ...
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Admission Policies in Loss Queueing Models with Heterogeneous Arrivals

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo; Muñoz Márquez, Manuel (INST OPERATIONS RESEARCH MANAGEMENT SCIENCES, 1998-03-01)
In this paper we consider a loss system where the arrivals can be classified into different groups according to their ...
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Dominating sets for convex functions with some applications

Carrizosa Priego, Emilio José; Frenk, Johannes B. G. (Springer, 1998-02-01)
A number of optimization methods require as a rst step the construction of a dominating set (a set containing an optimal ...
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A note on the optimal positioning of service units

Carrizosa Priego, Emilio José; Muñoz Márquez, Manuel; Puerto Albandoz, Justo (INST OPERATIONS RESEARCH MANAGEMENT SCIENCES, 1998-02-01)
In this paper we address the problem of locating p mobile service units in an n-dimensional space minimizing the expected ...
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Maximin location: discretization not always works

Fernández Alonso, Isabel; Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo (Springer, 1998-01-01)
In this note we show by means of a simple example that, if the maximin problem with (nonlinear) concave increasing utility ...
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Location and shape of a rectangular facility in ℝn. Convexity properties. Convexity properties

Carrizosa Priego, Emilio José; Muñoz Márquez, Manuel; Puerto Albandoz, Justo (Springer, 1998-01-01)
In this paper we address a generalization of the Weber problem, in which we seek for the center and the shape of a rectangle ...
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Semi-obnoxious location models: a global optimization approach

Romero Morales, María Dolores; Carrizosa Priego, Emilio José (Elsevier, 1997-10-16)
In the last decades there has been an increasing interest in environmental topics. This interest has been reflected in ...
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Weber problems with alternative transportation systems

Carrizosa Priego, Emilio José; Rodríguez Chía, Antonio Manuel (ELSEVIER SCIENCE BV, 1997-02-16)
In this paper we address a planar p-facility location problem where, together with a metric induced by a gauge, there ...
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The Weber problem with regional demand

Carrizosa Priego, Emilio José; Muñoz Márquez, Manuel; Puerto Albandoz, Justo (ELSEVIER SCIENCE BV, 1996-12-27)
This paper is devoted to the study of the Regional Weber Problem, an extension of the Weber problem which allows the demand ...
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A characterization of halfspace depth

Carrizosa Priego, Emilio José (Elsevier, 1996-07-01)
In this note we present a characterization of halfspace depth which relates it with well-known concepts of Locational ...
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A characterization of efficient points in constrained location problems with regional demand

Carrizosa Priego, Emilio José; Plastria, Frank (ELSEVIER SCIENCE BV, 1996-02-01)
In this paper we characterize the set of efficient points in the planar point-objective location problem under a convex ...
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The generalized Weber problem with expected distances

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo; Muñoz Márquez, Manuel; Puerto Albandoz, Justo (EDP Sciences, 1995-09-01)
In this paper we study a generalized Weber problem where both demand locations and the facility to be located may be regions ...
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Multi-criteria analysis with partial information about the weighting coefficients

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo; Fernández García, Francisco Ramón; Puerto Albandoz, Justo (ELSEVIER SCIENCE BV, 1995-03-02)
In this paper we address the problem of ranking a set of alternatives with partial information about the weighting ...
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A discretizing algorithm for location problems

Carrizosa Priego, Emilio José; Puerto Gómez, Justo (ELSEVIER SCIENCE BV, 1995-01-01)
A new and simple methodology is proposed to solve both constrained and unconstrained planar continuous single-facility ...
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The determination of a "least quantile of squares regression line" for all quantiles

Carrizosa Priego, Emilio José; Plastria, Frank (Elsevier Science, 1994-09-01)
Least median of squares regression has shown to be an extremely useful tool in robust regression analysis. In this note, ...
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Multi-criteria analysis with partial information about the weighting coefficients

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo; Fernández García, Francisco Ramón; Puerto Albandoz, Justo (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 ...
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Efficiency in Euclidean constrained location problems

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo; Fernández García, Francisco Ramón; Puerto Albandoz, Justo (ELSEVIER SCIENCE BV, 1993-01-01)
In this note we present geometrical characterizations for the set of efficient, weakly efficient and properly efficient ...
PhD Thesis
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Problemas de localización multiobjetivo

Fernández García, Francisco Ramón; Carrizosa Priego, Emilio José (1992-01-01)
El objetivo del presente trabajo es el estudio de ciertos aspectos del problema multiobjetivo P (A, S) cuando el conjunto ...
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A management tool for indicator-supported systems: A public health service application

Carrizosa Priego, Emilio José; Conde Sánchez, Eduardo; Fernández, F.R.; Puerto Albandoz, Justo (ELSEVIER SCIENCE BV, 1992-01-01)
We develop a decision-making methodology for hierarchical structures. It provides different decision makers with ...