Now showing items 1-20 of 37

    • 3D object recognition and pose estimation using feature descriptor regression in a Bayes' framework 

      Segura Morros, Sergi (Universitat Politècnica de Catalunya / Leibniz Universität Hannover, 2012-08)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Leibniz Universität Hannover
      [ANGLÈS] In this thesis, we have tried to find a suitable method to solve typical applications of pose recognition for cars, face, or facades. We have looked for efficient algorithms that allow us to solve the problem ...
    • A bayesian test for Hardy-Weinberg equilibrium of bi-allelic X-chromosomal markers 

      Puig Oriol, Xavier; Ginebra Molins, Josep; Graffelman, Jan (2017-07)
      Article
      Open Access
      The X chromosome is a relatively large chromosome, harboring a lot of genetic information. Much of the statistical analysis of X-chromosomal information is complicated by the fact that males only have one copy. Recently, ...
    • A Cluster analysis of vote transitions 

      Puig Oriol, Xavier; Ginebra Molins, Josep (2014)
      Article
      Restricted access - publisher's policy
      To help settle the debate triggered the day after any election around the origin and destination of the vote of winners and losers, a Bayesian analysis of the results in a pair of consecutive elections is proposed. It is ...
    • A new approach for supply chain risk management: Mapping SCOR into Bayesian network 

      Abolghasemi, Mahdi; Khodakarami, Vahid; Tehranifard, Hamid (OmniaScience, 2015-04)
      Article
      Open Access
      Purpose: Increase of costs and complexities in organizations beside the increase of uncertainty and risks have led the managers to use the risk management in order to decrease risk taking and deviation from goals. SCRM has ...
    • A probabilistic-based approach to support the comfort performance assessment of existing buildings 

      Bortolini, Rafaela; Forcada Matheu, Núria (2019-11-10)
      Article
      Restricted access - publisher's policy
      Building performance is focused on maintaining and increasing sustainability while enhancing occupants' comfort levels. Occupants' comfort depends on uncertain, interrelated personal, social and building factors. However, ...
    • A shared-parameter joint model for prostate cancer risk and psa longitudinal profiles 

      Serrat Piè, Carles; Rué, Montserrat; Perpiñán Fabuel, Hèctor; Forte, Anabel; Armero, Carmen; Piulachs, Xavier; Páez, Álvaro; Gómez Melis, Guadalupe (Fundación Mapfre, 2015)
      Conference report
      Open Access
      The paper describes the use of frequentist and Bayesian shared-parameter joint models of longitudinal measurements of prostate specific antigen (PSA) and the risk of prostate cancer (PCa). The motivating dataset corresponds ...
    • A unified approach to authorship attribution and verification 

      Puig Oriol, Xavier; Font Valverde, Martí; Ginebra Molins, Josep (2016)
      Article
      Open Access
      In authorship attribution, one assigns texts from an unknown author to either one of two or more candidate authors by comparing the disputed texts with texts known to have been written by the candidate authors. In authorship ...
    • A variational formulation for GTM through time 

      Olier Caparroso, Iván; Vellido Alcacena, Alfredo (IEEE, 2008)
      Conference report
      Open Access
      Generative Topographic Mapping (GTM) is a latent variable model that, in its original version, was conceived to provide clustering and visualization of multivariate, realvalued, i.i.d. data. It was also extended to deal ...
    • Un Algoritmo de estimación de distribución basado en una red bayesiana para optimización topológica de estructuras 

      Valdez Peña, S. Ivvan; Botello Rionda, Salvador; Hernández, Arturo (Universitat Politècnica de Catalunya. CIMNE, 2010)
      Article
      Open Access
      The topological optimization problema is stated as follows: to find the best shape of a mechanical structure subject to certain service conditions. Usually, the topological optimization problem is tackled by starting from ...
    • Anàlisi bayesiana fent servir models lineals 

      Brichs Fernàndez, Anna (Universitat Politècnica de Catalunya, 2009-10)
      Master thesis
      Open Access
      Ens introduirem a la inferència Bayesiana, explicant la seva filosofia i el seu mètode. Estudiarem com es realitza la regressió lineal normal bayesiana, escollint dos tipus de distribucions a priori. Després s'estudia ...
    • Anàlisi cluster multinomial bayesià..Aplicació a dades electorals 

      Montón Domingo, Maria (Universitat Politècnica de Catalunya, 2009-10)
      Master thesis
      Open Access
      En aquest treball fi de màster se li vol donar una altra visió a les dades de resultats electorals, en concret, les del Parlament de Catalunya. Així doncs, l'eina d'anàlisi que s'utilitza és l'anàlisi clúster multinomial ...
    • Aplicació de mètodes estadístics bayesians empírics a l'estudi geogràfic de la mortalitat en àrees petites a Catalunya i Espanya 

      Buxó Pujolràs, Maria; Vergara Duarte, Montse, 1979- (Universitat Politècnica de Catalunya, 2007-07)
      Master thesis (pre-Bologna period)
      Open Access
      L'objectiu principal d'aquest projecte és mostrar l'aplicació estadística dels mètodes bayesians empírics per a realitzar estudis geogràfics de la salut en àrees petites. En concret, es mostrarà l'aplicació dels mètodes ...
    • Application of bayesian networks to assess water poverty 

      Giné Garriga, Ricard; Pérez Foguet, Agustí; Molina, J. L.; Bromley, John (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2009-10)
      Conference report
      Open Access
      The conventional approaches to water assessment are inappropriate for describing the increasing complexity of water issues. Instead, an integrated and holistic framework is required to capture the wide range of aspects ...
    • Bayesian analysis of frequency count data 

      Font Valverde, Martí; Puig Oriol, Xavier; Ginebra Molins, Josep (2011)
      Article
      Restricted access - publisher's policy
      The zero truncated inverse Gaussian–Poisson model, obtained by first mixing the Poisson model assuming its expected value has an inverse Gaussian distribution and then truncating the model at zero, is very useful when ...
    • Bayesian Analysis of the Heterogeneity of Literary Style 

      Font Valverde, Martí; Puig Oriol, Xavier; Ginebra Molins, Josep (2016-07)
      Article
      Open Access
      We proposed statistical analysis of the heterogeneity of literary style in a set of texts that simultaneously use different stylometric characteristics, like word length and the frequency of function words. The data set ...
    • Bayesian Gaussian network classifiers for mass spectra classification 

      Bellón Molina, Víctor Manuel (Universitat Politècnica de Catalunya, 2013-01-18)
      Master thesis
      Open Access
    • Bayesian Inference in MANTID - An Update 

      Vidal, B.L.; Oram, E.; Banos, R.A.; Pardo Soto, Luis Carlos; Mukhopadhyay, Sajal; Fernandez Alonso, Felix (2018)
      Conference report
      Open Access
      In the context of neutron science, Bayesian inference methods have been recently implemented within the MANTID framework [Monserrat D et al. 2015 J. Phys. Conf. Ser. 663 012009 (2015)]. In this contribution, we highlight ...
    • Bayesian network modelling of hierarchical composite indicators 

      Requejo Castro, David; Giné Garriga, Ricard; Pérez Foguet, Agustí (Elsevier, 2019-02-19)
      Article
      Open Access
      The water, sanitation and hygiene (WaSH) sector has witnessed the development of multiple tools for multidimensional monitoring. Hierarchical and composite indicators (CI)-based conceptual frameworks provide one illustrative ...
    • Bayesian region selection for adaptive dictionary-based Super-Resolution 

      Pérez-Pellitero, Eduardo; Salvador, Jordi; Ruiz Hidalgo, Javier; Rosenhahn, Bodo (2013)
      Conference lecture
      Open Access
      The performance of dictionary-based super-resolution (SR) strongly depends on the contents of the training dataset. Nevertheless, many dictionary-based SR methods randomly select patches from of a larger set of training ...
    • Bayesian trend analysis for daily rainfall series of Barcelona 

      Ortego Martínez, María Isabel; Gibergans Bàguena, José; Tolosana Delgado, Raimon; Egozcue Rubí, Juan José; Llasat Botija, Maria Carmen (2010-07-15)
      Article
      Open Access
      A Point-Over-Threshold approach using a reparameterization of the Generalized Pareto Distribution (GPD) has been used to assess changes in the daily rainfall Barcelona series (1854–2006). A Bayesian approach, considering ...