Departament d'Estadística i Investigació Operativa

Recent Submissions

  • What does a zero mean? understanding false, random and structural zeros in ecology 

    Blasco Moreno, Anabel; Pérez Casany, Marta; Puig, Pedro; Morante, Maria; Castells, Eva (2019-03-27)
    Article
    Restricted access - publisher's policy
    1. Zeros (i.e. events that do not happen) are the source of two common phenomena in count data: overdispersion and zero-inflation. Zeros have multiple origins in a dataset: false zeros occur due to errors in the experimental ...

  • PRESISTANT: Learning based assistant for data pre-processing 

    Bilalli, Besim; Abelló Gamazo, Alberto; Aluja Banet, Tomàs; Wrembel, Robert (Elsevier, 2019-08-17)
    Article
    Restricted access - publisher's policy
    Data pre-processing is one of the most time consuming and relevant steps in a data analysis process (e.g., classification task). A given data pre-processing operator can have positive, negative, or zero impact on the final ...

  • Oral health-related quality of life in native and immigrant populations in the PELFI study in Spain 

    Agudelo Suárez, Andrés A.; Vivares Builes, Annie M.; Muñoz Pino, Natalia; Martínez Martínez, José Miguel; Reid, Alison; Ronda Pérez, Elena (2019-05-21)
    Article
    Open Access
    Quality of life and its relationship to oral health is an important consideration in the determinants of health of vulnerable groups. The aim of this study is to assess oral health-related quality of life (OHRQoL) and its ...

  • ¿Aprenden sostenibilidad los alumnos de la FIB? 

    Sánchez Carracedo, Fermín; Sabaté i Garriga, Ferran; Gibert, Karina (Asociación de Enseñantes Universitarios de la Informática (AENUI), 2019)
    Conference report
    Open Access
    En este artículo se presenta un estudio realizado para averiguar si los estudiantes de la FIB aprenden sostenibilidad a lo largo de sus estudios en la universidad. Se usa como herramienta el cuestionario de sostenibilidad ...

  • Public entities driven robotic innovation in urban areas 

    Puig-Pey Clavería, Ana María; Bolea Monte, Yolanda; Grau Saldes, Antoni; Casanovas Garcia, Josep (2017-03)
    Article
    Open Access
    Cities present new challenges and needs to satisfy and improve lifestyle for their citizens under the concept “Smart City”. In order to achieve this goal in a global manner, new technologies are required as the robotic ...

  • Scoping review on interventions to improve adherence to reporting guidelines in health research 

    Blanco de Tena Davila, David; Altman, D.G.; Moher, David; Boutron, Isabelle; Kirkham, Jamie; Cobo Valeri, Erik (2019-05-01)
    Article
    Open Access
    Objectives The goal of this study is to identify, analyse and classify interventions to improve adherence to reporting guidelines in order to obtain a wide picture of how the problem of enhancing the completeness of reporting ...

  • A text-mining approach to assess the failure condition of wind turbines using maintenance service history 

    Blanco Martínez, Alejandro; Marti Puig, Pere; Gibert, Karina; Cusidó Roura, Jordi; Sole Casals, Jordi (2019-05-23)
    Article
    Open Access
    Detecting and determining which systems or subsystems of a wind turbine have more failures is essential to improve their design, which will reduce the costs of generating wind power. Two of the most critical failures, the ...

  • Effectiveness of a new one-hour blood pressure monitoring method to diagnose hypertension: a diagnostic accuracy clinical trial protocol 

    González de Paz, Luis; Kostov, Belchin Adriyanov; Alvira Balada, Maria del Carme; Colungo, Cristina (2019-05-01)
    Article
    Open Access
    Introduction 24-hour ambulatory blood pressure monitoring (ABPM) is the gold standard diagnostic method for hypertension, but has some shortcomings in clinical practice while clinical settings often lack sufficient devices ...

  • Does evidence support the high expectations placed in precision medicine? A bibliographic review 

    Cortés Martínez, Jordi; González Alastrué, José Antonio; Medina, María Nuncia; Vogler, Markus; Vilaró Pacheco, Marta; Elmore, Matthew; Senn, Stephen John; Campbell, Michael J.; Cobo Valeri, Erik (2018-01-09)
    Article
    Open Access
    Background: Precision medicine is the Holy Grail of interventions that aretailored to a patient’s individual characteristics.  However, the conventional design of randomized trials assumes that each individual benefits  ...

  • 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 ...

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