School Seminars and Colloquia

Null distributions for largest eigenvalues in multivariate analysis

Statistics Seminar

by Iain Johnstone


Institution: Stanford University, USA
Date: Thu 20th November 2008
Time: 12:00 PM
Location: Russell Love Theatre, Richard Berry Building, The University of Melbourne

Abstract: The eigenvalues of Wishart matrices play a central role in classical multivariate analysis. A new impetus to approximate distribution results has come from methods that imagine the number of variables as large. We focus on the largest eigenvalue in particular, and first briefly review null distribution approximations in terms of the Tracy-Widom laws. The second part will focus on work in progress on concentration inequalities for the largest eigenvalue in the "two Wishart" case, such as canonical correlations.

For More Information: Guoqi Qian, g.qian@ms.unimelb.edu.au