[Forum SIS] UNIBO Statistics Seminars

[Silvia Cagnone]

We are glad to announce the following Statistics Seminar:


Thursday, April 20th, 2017

Room IV, 12:00 a.m.
Department of Statistical Sciences
via delle Belle Arti 41, Bologna

Antonio Lijoi  (Bocconi University)


Bayesian nonparametric inference beyond the Dirichlet process


Abstract: The Dirichlet process stands out as the cornerstone of Bayesian nonparametric modeling and most of its success is due to its analytical tractability. Nonetheless, there has recently been a rich  and vivid literature on generalizations that provide greater  flexibility, while still allowing for a straightforward implementation  of Bayesian inferential procedures. The talk will briefly review classes of such priors that have also attracted considerable interest  in applied fields. It will be noted that some of their relevant  properties crucially rely on the specification of a diffuse base measure, which is interpreted as the prior guess at the shape of the  data generating distribution. The case where the base measure may  include atoms will be considered as well, since it is a more  appropriate assumption in several applications. This makes the analysis more challenging, if one wishes to go beyond the Dirichlet process. Nonetheless, it is shown that one may still establish distributional results that, besides being of interest per se, lead to design MCMC algorithms useful for evaluating Bayesian inferences. The presentation will be completed by illustrations with real and  simulated datasets.



Contact person: Alessandra Luati


The schedule of the statistics seminars are available at http://www.stat.unibo.it/it/dipartimento/seminari-di-statistica-2017



Silvia Cagnone
Department of Statistical Sciences "Paolo Fortunati"
University of Bologna
Via delle Belle Arti 41 - 40126  Bologna,  ITALY
Tel: +39 051 2098213  Fax: +39 051 232153
http://www2.stat.unibo.it/cagnone/

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