Back to Normal – Box-Cox Transformations in Cosmology

Add to your list(s) Download to your calendar using vCal

• Benjamin Joachimi (Institute for Astronomy, Royal Observatory, Edinburgh)
• Tuesday 23 October 2012, 16:30-17:30
• Ryle Seminar Room, Cavendish Laboratory.

If you have a question about this talk, please contact David Titterington.

Box-Cox transformations are a widely used Gaussianisation tool in various research areas, which has received little attention in astrophysics so far. I am going to present two recent cosmological applications of Box-Cox transformations. They were used to Gaussianise the weak lensing projected mass distribution, as a generalisation of the currently en-vogue logarithmic transformations, with the goal of maximising the information contained in two-point statistics. Moreover I will present work on the generalisation of Fisher matrices by means of Box-Cox transformations in order to produce predictions of arbitrary posterior distributions and discuss the potential of this ansatz to construct statistically independent parameter sets for arbitrary inference problems.

This talk is part of the Cavendish Astrophysics Seminars series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• CamTalks
• Cavendish Astrophysics Seminars
• Cavendish Astrophysics Summary
• Centre for Health Leadership and Enterprise
• Combined External Astrophysics Talks DAMTP
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• Featured lists
• Kavli Institute for Cosmology Talk Lists
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Priscilla
• Ryle Seminar Room, Cavendish Laboratory
• School of Physical Sciences
• Thin Film Magnetic Talks

Note that ex-directory lists are not shown.