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Seminar Details

Date 31-3-2004
Time 16:00
Room/Location Sala conferenze, 322, 3 piano
Title Statistical inverse problems and hierarchical models
Speaker Professor Erkki Somersalo
Affiliation Department of Mathematics Technical University of Helsinki Helsinki, Finland
Link http://www.cwru.edu/
Abstract We consider inverse problems from the point of view of Bayesian statistics, in which the problem is a statistical probelm of inference based on indirect observations. Often,the prior density depends on parameters that are badly known. The selection of these parameters is sometimes tantamount to selecting regularization parameters in classical inversion schemes. It is shown how these parameters are determined witihn the Bayesian framework by using hierarchical models. The method is applied to the MEG problem of localizing source currents.
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