Le s�minaire du Samos
Le s�minaire des �quipes Marin Mersenne et Samos,
Math�matiques
des Syst�mes Complexes,
(en liaison avec l'Institut de
Se tiennent habituellement � l’Universit� Paris
1
90, rue de Tolbiac
75013 Paris
M�tro : Place d’Italie, Tolbiac ou
Biblioth�que Fran�ois Mitterand
Les s�minaires pass�s et � venir
S�minaire
Samos :
Vendredi 16 mars
2007 � 11 heures
Salle C2013, 20�me
�tage
Universit�
Paris 1
Centre Pierre Mendes
France,
90
rue de Tolbiac,� 75013 Paris
Noel Cressie (
Spatial
Prediction for Massive Datasets
R�sum� : Environmental datasets obtained from satellites are
typically massive in size. The massiveness causes problems in computing optimal
spatial (kriging) predictors. In this talk, a flexible� family of nonstationary covariance functions
is constructed� using a set of basis
functions that is fixed in number. This results in computational simplications
in deriving the kriging predictor and its kriging variance. We call the
methodology fixed� rank kriging (FRK) and
we apply it to a large dataset of remotely sensed Total Column Ozone (TCO)
data, observed over the entire globe. This
talk represents joint research with Gardar Johannesson.
Voir aussi
Le s�minaire du SAMOS
des ann�es pr�c�dentes
J.-M. Bardet��������� J.-B. Baillon���������� J. Blot���� M.Cottrell������������� A.Millet
SAMOS (Statistique Appliqu�e et MOd�lisation Stochastique)
Universit� Paris 1