Now showing items 1-18 of 18

  • 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 ...
  • Anàlisi de dades diiscretes: freqüència de freqüències i dades multinomials 

    Puig Oriol, Xavier (Universitat Politècnica de Catalunya, 2009-12-18)
    Doctoral thesis
    Open Access
    La Tesi la integren dues parts molt diferenciades que tenen en comú tractar de l'anàlisi de dades discretes i l'utilitzar conjunts de dades com a punt de partida. La primera part està escrita en anglès i s'adapta al ...
  • Anàlisi de la mortalitat a Catalunya : 1986-2000 : evolució temporal i distribució espacial 

    Puig Oriol, Xavier (Universitat Politècnica de Catalunya, 2003-01)
    Master thesis (pre-Bologna period)
    Open Access
    Els objectius d’aquest treball són: - Analitzar la mortalitat de forma que permeti descriure per una banda l’evolució temporal i per un altre la distribució espacial, tot visualitzant les variacions entre diferents àrees ...
  • Anàlisi de la mortalitat per tumors malignes de mama i d'estómac a Catalunya 

    Puig Oriol, Xavier; Ginebra Molins, Josep (Facultat de Matemàtiques i Estadística, Universitat Politècnica de Catalunya, 2008)
    Part of book or chapter of book
    Open Access
    Les diferències en la distribució geogràfica de les causes de mortalitat són una informació de gran interès per lluitar contra elles. Les primeres hipòtesis sobre les causes de moltes malalties han estat establertes a ...
  • 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 ...
  • 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 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 ...
  • Classification of literary style that takes order into consideration. 

    Puig Oriol, Xavier; Font, Martí; Ginebra Molins, Josep (2015-07-09)
    Article
    Open Access
    The statistical analysis of the heterogeneity of the style of a text often leads to the analysis of contingency tables of ordered rows. When multiple authorship is suspected, one can explore that heterogeneity through ...
  • Disseny i implementació d’un cas pràctic d’introducció a l’estadística basat en la presa de decisions realistes sobre dades simulades 

    Tort-Martorell Llabrés, Xavier; Camps Lorente, Oriol; Grima Cintas, Pedro; Marco Almagro, Lluís; Puig Oriol, Xavier; Rodero de Lamo, Lourdes; Sánchez Espigares, Josep Anton; Solé Vidal, Ignasi; Riba Civil, Alexandre; Berenguer Guerra, Victor; Jurado Margarit, Adriana; Magriñà Amat, Carlos (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
    Conference report / Conference lecture
    Open Access
    Un diagnòstic de les pràctiques d'estadística va portar a proposar per a una nova assignatura un joc competitiu en línia de presa de decisions basades en l'estadística. Aquest utilitza dades simulades i un web en què ...
  • Ecological inference and spatial variation of individual behavior: national divide and elections in Catalonia 

    Puig Oriol, Xavier; Ginebra Molins, Josep (2014-09-18)
    Article
    Restricted access - publisher's policy
    When in geography one reconstructs individual behavior starting from aggregated data through ecological inference, a crucial aspect is the spatial variation of individual behavior. Basic ecological inference methods treat ...
  • MicroRNAs expression, chromosomal alterations and immunoglobulin variable Heavy chain hypermutations in Mantle Cell Lymphomas 

    López-Guillermo, A; Navarro, A; Beà, Sílvia; Fernández, V; Prieto, M; Salaverria, I; Jares, P; Hartmann, E; Mozos, A; Hernández, L; Campo, E; Rossenwald, A; Serrano, Sergi; Solé Parellada, Francesc; Ott, G; Puig Oriol, Xavier; Colomer, D; Villamor, N. (2009)
    Article
    Open Access
    The contribution of microRNAs (miR) to the pathogenesis of mantle cell lymphoma (MCL) is not well known.We investigated the expression of 86 mature miRs mapped to frequently altered genomic regions in MCL in CD5+/CD5 ...
  • On the measure and the estimation of evenness and diversity 

    Ginebra Molins, Josep; Puig Oriol, Xavier (2010)
    Article
    Restricted access - author's decision
    Modelling word or species frequency count data through zero truncated Poisson mixture models allows one to interpret the model mixing distribution as the distribution of the word or species frequencies of the vocabulary ...
  • On the measure and the estimation of the evenness and diversity of vocabulary 

    Ginebra Molins, Josep; Puig Oriol, Xavier (2010)
    Article
    Restricted access - publisher's policy
    Modelling word or species frequency count data through zero truncated Poisson mixture models allows one to interpret the model mixing distribution as the distribution of the word or species frequencies of the vocabulary ...
  • Outlier detection for multivariate categorical data 

    Puig Oriol, Xavier; Ginebra Molins, Josep (2018)
    Article
    Open Access
    The detection of outlying rows in a contingency table is tackled from a Bayesian perspective, by adapting the framework adopted by Box and Tiao for normal models to multinomial models with random effects. The solution ...
  • PRESTON: Juego competitivo online para el aprendizaje de la estadística 

    Camps Lorente, Oriol; Rodero de Lamo, Lourdes; Sánchez Espigares, Josep Anton; Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier; Puig Oriol, Xavier; Riba Civil, Alexandre (2013)
    Conference report
    Open Access
    Presentamos un caso de rediseño de las prácticas de una asignatura de estadística. Tras realizar un diagnóstico del diseño previo (teniendo en cuenta la introducción del EEES), se propuso un juego competitivo on-line de ...
  • The Sichel Model and the mixing and truncation order 

    Puig Oriol, Xavier; Ginebra Molins, Josep; Font Valverde, Martí (2010)
    Article
    Restricted access - publisher's policy
    The analysis of word frequency count data can be very useful in authorship attribution problems. Zerotruncated generalized inverse Gaussian–Poisson mixture models are very helpful in the analysis of these kinds of data ...