Departament d'Estadística i Investigació Operativa

Enviaments recents

  • Validation and implementation of a diagnostic algorithm for DNA Detection of Bordetella pertussis, B. parapertussis, and B-holmesii in a Pediatric Referral Hospital in Barcelona, Spain 

    Valero Rello, Anna; Henares Bonilla, Desirée; Acosta Argueta, Lesly María; Jané Checa, Mireia; Godoy Garcia, Pere; Muñoz Almagro, Carmen (2019-01-01)
    Article
    Accés obert
    This study aimed to validate a comprehensive diagnostic protocolbased on real-time PCR for the rapid detection and identification ofBordetella per-tussis,Bordetella parapertussis, andBordetella holmesii, as well as its ...

  • Lesiones en la lucha tradicional: el caso de la lucha leonesa (2005-2015) 

    Blasco Carmona, M. J.; Casals Toquero, Martí; Fernández Villa, Tania; Langohr, Klaus (2018-12-01)
    Article
    Accés obert
    El objetivo de este estudio fue describir la localización anatómica, el tipo y la gravedad de las lesiones ocurridas en las competiciones oficiales de las ligas de verano masculinas (2005-2015) de Lucha Leonesa. Al objeto ...

  • Investigating the quality of SPSA and Spiess-like approaches forDynamic OD Matrix Estimation 

    Barceló Bugeda, Jaime; Ros-Roca, Xavier; Montero Mercadé, Lídia (2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Dynamic OD Estimation is usually formulated as bi-level problem where the objective function can not be evaluated analytically and thus the formulation relies on non-differentiable optimization methods that usually pivot ...

  • Multiple imputation approach for interval-censored time to HIV RNA viral rebound within a mixed effects Cox model 

    Alarcón Soto, Yovaninna; Langohr, Klaus; Fehér, C.; García Alcaide, Felipe; Gómez Melis, Guadalupe (2018-01-01)
    Article
    Accés obert
    We present a method to fit a mixed effects Cox model with interval-censored data. Our proposal is based on a multiple imputation approach that uses the truncated Weibull distribution to replace the interval-censored data ...

  • A specialized interior-point algorithm for huge minimum convex cost flows in bipartite networks 

    Castro Pérez, Jordi; Nasini, Stefano (2019-01-28)
    Report de recerca
    Accés obert
    The computation of the Newton direction is the most time consuming step of interior-point methods. This direction was efficiently computed by a combination of Cholesky factorizations and conjugate gradients in a specialized ...

  • Intelligent management of measurement units equivalences in food databases 

    Sevilla-Villanueva, Beatriz; Gibert, Karina; Sànchez-Marrè, Miquel (Springer, 2018-10-23)
    Capítol de llibre
    Accés restringit per política de l'editorial
    This book constitutes the refereed proceedings of the 18th Conference of the Spanish Association for Artificial Intelligence, CAEPIA 2018, held in Granada, Spain, in October 2018. The 36 full papers presented were carefully ...

  • MEET-UP: Suport als estudiants amb TEA en estadis inicials a la UPC 

    Gracia, Mireia; López Álvarez, David; Montero Mercadé, Lídia; Mampel, Sergi; Radó, Natalia; Vilalta, Montserrat (2019-01-22)
    Report de recerca
    Accés obert
    L’objectiu és posar en marxa un pilot anomenat Meet-Up per acollir a partir del Juliol del 2017 a nous estudiants de la UPC afectats de TEA, mitjançant una sessió d’acollida inicial, amb explicació de la plataforma Moodle ...

  • PRESISTANT : data pre-processing assistant 

    Bilalli, Besim; Abelló Gamazo, Alberto; Aluja Banet, Tomàs; Munir, Rana Faisal; Wrembel, Robert (Springer, 2019)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    A concrete classification algorithm may perform differently on datasets with different characteristics, e.g., it might perform better on a dataset with continuous attributes rather than with categorical attributes, or the ...

  • Exceso de mortalidad en las pacientes con cáncer de mama en estadios precoces en Tarragona y Gerona (España) 

    Clèries, Ramon; Ameijide, Alberto; Buxó, Maria; Vilardell, Mireia; Martínez Martínez, José Miguel (Elsevier, 2018-01-01)
    Article
    Accés obert
    Objetivo Analizar la supervivencia poblacional del cáncer de mama (CM) en estadios precoces, estimando la tendencia temporal del exceso de mortalidad (EM) a largo plazo en periodos anuales y quinquenales, y determinando, ...

  • Estimating pore water electrical conductivity of sandy soil from time domain reflectometry records using a time-varying dynamic linear model 

    Aljoumani, Basem; Sánchez Espigares, Josep Anton; Wessolek, Gerd (Multidisciplinary Digital Publishing Institute (MDPI), 2018-12-13)
    Article
    Accés obert
    Despite the importance of computing soil pore water electrical conductivity (sp) from soil bulk electrical conductivity (sb) in ecological and hydrological applications, a good method of doing so remains elusive. The ...

  • Saving runs in fractional factorial designs 

    Grima Cintas, Pedro; Rodero de Lamo, Lourdes; Tort-Martorell Llabrés, Xavier (2018-12-27)
    Article
    Accés restringit per política de l'editorial
    When it is known a priori that some contrasts are negligible in a factorial design, their expressions can be used to deduce the missing results. In this article we propose a method for using this procedure when, as in the ...

  • Consequences of using estimated response values from negligible interactions in factorial designs 

    Xampeny Solani, Rafael; Grima Cintas, Pedro; Tort-Martorell Llabrés, Xavier (2018-12-21)
    Article
    Accés restringit per política de l'editorial
    This article analyzes the increase in the probability of committing type I and type II errors in assessing the significance of the effects when some properly selected runs have not been carried out and their responses have ...

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