6,498 research outputs found
Parametric Modelling of Multivariate Count Data Using Probabilistic Graphical Models
Multivariate count data are defined as the number of items of different
categories issued from sampling within a population, which individuals are
grouped into categories. The analysis of multivariate count data is a recurrent
and crucial issue in numerous modelling problems, particularly in the fields of
biology and ecology (where the data can represent, for example, children counts
associated with multitype branching processes), sociology and econometrics. We
focus on I) Identifying categories that appear simultaneously, or on the
contrary that are mutually exclusive. This is achieved by identifying
conditional independence relationships between the variables; II)Building
parsimonious parametric models consistent with these relationships; III)
Characterising and testing the effects of covariates on the joint distribution
of the counts. To achieve these goals, we propose an approach based on
graphical probabilistic models, and more specifically partially directed
acyclic graphs
Saberes
Prova tipográfica (In Press)Rubrica em dicionário cientĂfico.Ao contrário do que sugere o clichĂ© da "sociedade do saber", relações de poder continuam subjacentes Ă produção e Ă legitimação dos saberes, mesmo num contexto multicultural em que Ă© cada vez menos tolerado ver a pluralidade dos saberes e das práticas ser traduzida em desigualdade ou em exclusĂŁo da cidadania, e em que "heterosaberes" diversos alcançam um protagonismo inusitado
O acesso enquanto direito humano: relato da ConferĂŞncia Federation of International Human Rights Museums
Centro em Rede de Investigação em Antropologia UID/ANT/04038/201
Application de l'analyse des correspondances Ă l'Ă©tude de certains peuplements ichtyologiques du lac Tchad
Evolution des captures totales (1962-1977) et devenir des pecheries de la région du lac Tchad
La cuisson des pommes de terre dans le sable
Durand Jean-Yves. La cuisson des pommes de terre dans le sable. In: Recherches en anthropologie au Portugal, n°1, 2000. « Benjamim Enes Pereira ». pp. 97-102
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