[Colloquium] 5/15 TTIC Colloquium: Afonso Bandeira, New York University
Mary Marre via Colloquium
colloquium at mailman.cs.uchicago.edu
Mon May 8 16:48:27 CDT 2017
When: Monday, May 15th at 11:00 a.m.
Where: TTIC, 6045 S. Kenwood Avenue, 5th Floor, Room 526
Who: Afonso Bandeira, New York University
Title: On Phase Transitions for Spiked Random Matrix and Tensor Models
Abstract: A central problem of random matrix theory is to understand
the eigenvalues of spiked random matrix models, in which a prominent
eigenvector (or low rank structure) is planted into a random matrix.
These distributions form natural statistical models for principal
component analysis (PCA) problems throughout the sciences, where the
goal is often to recover or detect the planted low rank structured. In
this talk we discuss fundamental limitations of statistical methods to
perform these tasks and methods that outperform PCA at it. Emphasis
will be given to low rank structures arising in Synchronization
problems.
Time permitting, analogous results for spiked tensor models will also be
discussed.
Host: Nathan Srebro <nati at ttic.edu>
For more information on the colloquium series or to subscribe to the
mailing list, please see http://www.ttic.edu/colloquium.php
Mary C. Marre
Administrative Assistant
*Toyota Technological Institute*
*6045 S. Kenwood Avenue*
*Room 504*
*Chicago, IL 60637*
*p:(773) 834-1757*
*f: (773) 357-6970*
*mmarre at ttic.edu <mmarre at ttic.edu>*
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