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SUMMARY:Back to Normal – Box-Cox Transformations in Cosmology - Benjamin
  Joachimi (Institute for Astronomy\, Royal Observatory\, Edinburgh)
DTSTART:20121023T153000Z
DTEND:20121023T163000Z
UID:TALK40719@talks.cam.ac.uk
CONTACT:David Titterington
DESCRIPTION:Box-Cox transformations are a widely used Gaussianisation tool
  in various research areas\, which has received little attention in astrop
 hysics so far.  I am going to present two recent cosmological applications
  of Box-Cox transformations.  They were used to Gaussianise the weak lensi
 ng projected mass distribution\, as a generalisation of the currently en-v
 ogue logarithmic transformations\, with the goal of maximising the informa
 tion contained in two-point statistics.  Moreover I will present work on t
 he generalisation of Fisher matrices by means of Box-Cox transformations i
 n order to produce predictions of arbitrary posterior distributions and di
 scuss the potential of this ansatz to construct statistically independent 
 parameter sets for arbitrary inference problems.\n
LOCATION:Ryle Seminar Room\, Cavendish Laboratory
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