[Forum SIS] Politecnico di Milano - Seminario Dr. S. Ray

[Laura Sangalli]

Si avvisa che in data 12-04-2013, alle ore 14:30 precise,
presso Aula Seminari F. Saleri VI Piano MOX - Dipartimento di 
Matematica, Politecnico di Milano,
nell'ambito delle iniziative MOX e del progetto FIRB Futuro in Ricerca 
SNAPLE (http://mox.polimi.it/users/sangalli/firb.html), si svolgerà il 
seguente seminario:

Relatore:
Suragit Ray
University of Glasgow

Titolo:
Functional Factor Analysis For Periodic Remote Sensing Data

Abstract:
We present a new approach to factor rotation for functional data. This 
rotation is achieved by rotating the functional principal components 
towards a pre-defined space of periodic functions designed to decompose 
the total variation into components that are nearlyperiodic and 
nearly-aperiodic with a pre-defined period. We show that the factor 
rotation can be obtained by calculation of canonical correlations 
between appropriate spaces which makes the methodology computationally 
efficient. Moreover we demonstrate that our proposed rotations provide 
stable and interpretable results in the presence of highly complex 
covariance. This work is motivated by the goal of finding interpretable 
sources of variability in vegetation index obtained from remote sensing 
instruments and we demonstrate our methodology through an application of 
factor rotation of this data.


Tutti gli interessati sono invitati a partecipare.


Cordiali saluti,
Laura Sangalli

-- 
Laura Maria Sangalli
MOX - Dipartimento di Matematica
Politecnico di Milano
Piazza Leonardo da Vinci 32
20133 Milano - Italy
tel: +39 02 2399 4554
fax: +39 02 2399 4568
email: laura.sangalli at polimi.it
url: http://mox.polimi.it/~sangalli