Avviso di seminario

[Carlo Gaetan <gaetan@stat.unipd.it>]

Dipartimento di Scienze Statistiche
Universita' di Padova

Il Prof. Alan Gelfand
University of Connecticut

terrą il seguente seminario:

BAYESIAN APPROACHES FOR
MISALIGNED DATA LAYERS AND THE
MODIFIABLE AREAL UNIT PROBLEM

25 Maggio 2001
ore 15.00
Aula SC60


Summary

In attempting to establish relationships between spatial variables, one often 
encounters misaligned data layers. For example, the response variable may be 
observed on one areal grid and the explanatory variable on another. In some 
cases one variable is observed areally while the other is observed at point 
sources. In attempting to reconcile such misalignment, one finds a variety of 
ad hoc methods in the literature. We propose fully model-based approaches to 
develop such regressions. Such models are necessarily hierarchical and 
provide full inference, avoiding typically inappropriate asymptotics 
associated with likelihood-based approaches. We discuss general approaches 
for handling the different types of misalignment and then illustrate the 
first situation (with which we have the most experience) using an 
environmental risk dataset and also a very large deforestation dataset.
;
Gli interessati sono cordialmente invitati ad intervenire.

Per informazioni si prega di contattare il sig. Dicuonzo 
(marius@mailhost.stat.unipd.it) della segreteria del 
Dipartimento.


-- 

Carlo Gaetan
Dipartimento di Scienze Statistiche
Universita' di Padova
via C. Battisti, 241/243
I-35121 Padova (Italy)
e-mail: gaetan@stat.unipd.it
phone :++390498274168 (gen.office)
          ++390498274180 (desk)
fax:      ++390498274170