Departament d'Estadística i Investigació Operativa

Recent Submissions

  • The stratified p-center problem 

    Albareda Sambola, Maria; Martínez Merino, Luisa I.; Rodríguez Chía, Antonio Manuel (2019-08-01)
    Article
    Restricted access - publisher's policy
    This work presents an extension of the discrete p-center problem. In this new model, called Stratified p-Center Problem (SpCP), the demand is concentrated in a set of sites and the population of these sites is divided into ...

  • Differences in eye health, access to eye care specialists and use of lenses among immigrant and native-Born Workers in Spain 

    Seguí Crespo, Mari Mar; Cantó Sancho, Natalia; Reid, Alison; Martínez Martínez, José Miguel; Ronda Pérez, Elena (2019-04-01)
    Article
    Open Access
    Latin American immigrants make up 49% of the total immigrant population in Spain, yet little is known about their eye health. The aim of this study is to determine if there are differences in self-perceived eye health, ...

  • A log-ratio biplot approach for exploring genetic relatedness based on identity by state 

    Graffelman, Jan; Galván Femenía, Iván; de Cid, Rafael; Barceló Vidal, Carles (2019-04-24)
    Article
    Open Access
    The detection of cryptic relatedness in large population-based cohorts is of great importance in genome research. The usual approach for detecting closely related individuals is to plot allele sharing statistics, based on ...

  • Bayesian model selection for the study of Hardy-Weinberg proportions and homogeneity of gender allele frequencies 

    Puig Oriol, Xavier; Ginebra Molins, Josep; Graffelman, Jan (2019-05-29)
    Article
    Restricted access - publisher's policy
    Standard statistical tests for Hardy-Weinberg equilibrium assume the equality of allele frequencies in the sexes, whereas tests for the equality of allele frequencies in the sexes assume Hardy–Weinberg equilibrium. This ...

  • Which method to use? An assessment of data mining methods in Environmental Data Science 

    Gibert, Karina; Izquierdo Sebastián, Joaquín; Sànchez-Marrè, Miquel; Hamilton, Serena H.; Rodriguez Roda, Ignasi; Holmes, Geoffrey (Elsevier, 2018-12)
    Article
    Restricted access - publisher's policy
    Data Mining (DM) is a fundamental component of the Data Science process. Over recent years a huge library of DM algorithms has been developed to tackle a variety of problems in fields such as medical imaging and traffic ...

  • Comparative Study of The Finishing Effects Imparted by Enzymatic Treatments Applied to Undyed and Dyed Wool Fabrics 

    Riva Juan, Ascensión; Prieto Fuentes, María Remedios; Algaba Joaquín, Inés María; Lis Arias, Manuel José (2019-05)
    Article
    Open Access
    The use of enzymes in the finishing of wool fabrics could be an alternative to the traditional finishing with chemicals. The main objective is to obtain some finishing processes that are more environment-friendly than the ...

  • t’STEAM: acompañar la vocación tecnológica en mujeres de secundaria 

    Peña Carrera, Marta; Olmedo Torre, Noelia; López Beltrán, Mireia; Sanz Gómez, M. Carmen (2018)
    Conference report
    Open Access
    El proyecto piloto t'STEAM coordinado por el l'Institut de Ciències de l'Educació (ICE) de la Universitat Politècnica de Catalunya. UPC·BarcelonaTech (UPC) propone utilizar la mentoría entre mujeres como herramienta para ...

  • What is that thing called internal quality assurance system? 

    Sánchez Puchol, Félix; Pastor Collado, Juan Antonio; Casanovas Garcia, Josep (2018)
    Conference report
    Open Access
    Purpose: The main purpose of this paper is to explore and to propose a comprehensive definition and conceptualization of an Internal Quality Assurance System (IQAS) for Higher Education Institution (HEI) by using Work ...

  • Characteristics of apixaban-treated patients, evaluation of the dose prescribed, and the persistence of treatment: a cohort study in Catalonia 

    Gómez Lumbreras, Ainhoa; Cortés Martínez, Jordi; Giner Soriano, Maria; Quijada Manuitt, Mª Angeles; Morros Padrós, Rosa (2018-05-23)
    Article
    Open Access
    Apixaban is a direct oral anticoagulant, which inhibits factor Xa. It has demonstrated clinical efficacy in prevention of stroke and systemic embolism in adult patients with nonvalvular atrial fibrillation and a better ...

  • Reused second life batteries for aggregated demand response services 

    Canals Casals, Lluc; Barbero, Mattia; Corchero García, Cristina (2019-03-01)
    Article
    Restricted access - publisher's policy
    The electric vehicle is presented as an environmental friendly alternative to common vehicles and as the future of transportation. However, car manufacturers consider that electric vehicle batteries are not useful for ...

  • Antidepressant use in Denmark, Germany, Spain, and Sweden between 2009 and 2014: incidence and comorbidities of antidepressant initiators 

    Forns, Joan; Pottegard, Anton; Reinders, Tammo; Poblador Plou, Beatriz; Morros Padrós, Rosa; Brandt, Lena; Cainzos Achirica, Miguel; Hellfritzsch, M; Schink, Tania; Prados Torres, Alexandra; Giner Soriano, Maria; Hagg, David; Hallas, Jesper; Cortés Martínez, Jordi; Jacquot, Emmanuelle; Deltour, Nicole; Pérez Gutthann, Susana; Pladevall, Miquel; Reutfors, Johan (2019-04-15)
    Article
    Open Access
    Background We aimed to describe patterns of use and characteristics of 10 commonly used antidepressants for the period 2009–2014 in Denmark, Germany, Spain, and Sweden. Methods Adult initiators from 2009 to 2014 of each ...

  • Reformulated acyclic partitioning for rail-rail containers transshipment 

    Albareda Sambola, Maria; Marín Pérez, Alfredo; Rodríguez Chía, Antonio Manuel (Elsevier, 2019-08-16)
    Article
    Restricted access - publisher's policy
    Many rail terminals have loading areas that are properly equipped to move containers between trains. With the growing throughput of these terminals all the trains involved in a sequence of such movements may not ¿t in the ...

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