[Forum SIS] Seminario Dott.ssa Sangalli 6-2-2014

[Dip. Scienze Statistiche - Mi]

Il Dipartimento di Scienze Statistiche dell'Università Cattolica del Sacro Cuore ha organizzato un seminario, presentato dalla Dott.ssa Laura SANGALLI, del Politecnico di Milano, dal titolo:



Modeling demographic data and medical imaging data via spatial regression models with differential regularization

Giovedì 06 Febbraio dalle ore 11,30

in Aula G 251



Università Cattolica del Sacro Cuore - Milano

Largo Gemelli,1 - Edificio Lanzone 18

Abstract:
I will present a novel class of models for spatial data analysis, that merges advanced statistical methodology with numerical analysis techniques. Thanks to the combination of potentialities from these two scientific areas, the proposed class of models has important advantages with respect to classical techniques used to analyze spatially distributed data. The models are able to efficiently deal with data distributed over irregularly shaped domains, including non-planar domains, only few methods existing in literature for this type of data structures. Moreover, they can incorporate problem-specific priori information about the spatial structure of the phenomenon under study, with a very flexible modeling of space variation, allowing naturally for anisotropy and non-stationarity. The models have a generalized additive framework with a regularizing term involving a differential quantity of the spatial field. The estimators have good inferential properties; moreover, thanks to the use of numerical analysis techniques, they are computationally highly efficient. The method is illustrated in various applied contexts, including demographic data and medical imaging data.
The seminar is based on joint work with Laura Azzimonti, Bree Ettinger, Fabio Nobile, Simona Perotto, Jim Ramsay, Piercesare Secchi.
This research is developed within FIRB2008 Futuro in Ricerca research project SNAPLE (http://mox.polimi.it/users/sangalli/firbSNAPLE.html).




Segreteria Organizzativa:
Sig.ra Barbara Villa
Tel. 02-7234.2647 - Fax 02-7234.3064
e-mail: dip.scienzestatistiche at unicatt.it


http://dipartimenti.unicatt.it/scienze_statistiche


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