# SEMINAR

A multidimensional unfolding method based on Bayes' theorem
* Giulio D'Agostini*
(**University of Rome La Sapienza**)

**Sala PA1, IST, EdifĂcio MatemĂˇtica**

**Friday, April 17th, 2009 at 04:00 PM**

**
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**Abstract**
`
Probability inversion (hence "Bayesian") is applied to
unfold measured distributions in order to correct them
for distortions due instrumental and physical effects,
that might also include background. The ideas behind
the program unfolding, widely used in particle
and astroparticle physics, are presented, together
with improvements to better handle small numbers and
the uncertainty associated to the resulting spectrum.`

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