Algebraic Bayesian analysis of contingency tables with possibly zero-probability cells. (Articolo in rivista)

Type
Label
  • Algebraic Bayesian analysis of contingency tables with possibly zero-probability cells. (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Guido Consonni;Giovanni Pistone (2007)
    Algebraic Bayesian analysis of contingency tables with possibly zero-probability cells.
    in Statistica sinica
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Guido Consonni;Giovanni Pistone (literal)
Pagina inizio
  • 1355 (literal)
Pagina fine
  • 1370 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www3.stat.sinica.edu.tw/statistica/oldpdf/A17n45.pdf (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 17 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 16 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Università di Pavia; Politecnico di Torino (literal)
Titolo
  • Algebraic Bayesian analysis of contingency tables with possibly zero-probability cells. (literal)
Abstract
  • In this paper we consider a Bayesian analysis of contingency tables allowing for the possibility that cells may have probability zero. In this sense we depart from standard log-linear modeling that implicitly assumes a positivity constraint. Our approach leads us to consider mixture models for contingency tables, where the components of the mixture, which we call model-instances, have distinct support. We rely on ideas from polynomial algebra in order to identify the various model instances. We also provide a method to assign prior probabilities to each instance of the model, and we describe methods for constructing priors on the parameter space of each instance. We illustrate our methodology through a 5 × 2 table involving two structural zeros, as well as a zero count. The results we obtain show that our analysis may lead to conclusions that are substantively different from those that would obtain in a standard framework, wherein the possibility of zero-probability cells is not explicitly accounted for. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it