SMS scnews item created by Pamela Guzman at Mon 8 Mar 2010 1150
Type: Seminar
Distribution: World
Expiry: 9 Mar 2010
Calendar1: 9 Mar 2010 1400-1500
CalLoc1: Carslaw 175
Auth: pamelag(.ampgrad;1539.16000)@p80724.pc.maths.usyd.edu.au

Postgraduate Seminar: Jenny Zhu -- Investigating the smallest class which a Gaussian location-mixture density belongs to

Abstract: Classes of Gaussian location-mixture densities of a fixed component
variance are nested and decreasing. As a consequence, any density
belonging to such a class (which can be shown to be quite rich) may be
reexpressed as a mixture density with a smaller component variance.
Whether or not it is possible to reexpress a density using a larger
component variance is a question which currently does not have a
satisfactory answer.


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