On the Importance of Marginalization in Maximum
نویسنده
چکیده
The correct entropic prior, computed by marginalization over the reg-ularization parameter , is used to invert photoemission data and to restore the famous \Susie" image. Comparison with the conventional maximum entropy procedure shows less overrtting of noise and demonstrates the residual ringing which is intrinsic to ill-posed inversion problems. An improvement to the steepest descent approximation reveals the reason for the overrtting. On top of that, the correct treatment of the regularization parameter is vital for the existence of the continuum-limit of MaxEnt.
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