[Colloquium] REMINDER: 9/19 TTIC Colloquium: Jorge Nocedal, Northwestern University
Mary Marre via Colloquium
colloquium at mailman.cs.uchicago.edu
Mon Sep 19 06:38:42 CDT 2016
When: Monday, September 19th at 11:00 a.m.
Where: TTIC, 6045 S. Kenwood Avenue, 5th Floor, Room 526
Who: Jorge Nocedal, Northwestern University
Title: Second Order Optimization for Large Scale Stochastic
Programming
Abstract: We study stochastic Newton methods that employ approximate
gradients and subsampled Hessians to achieve efficiency in very large
scale applications. We show that their work complexity is linear in the
dimension of the problem and contrast them with recently proposed Newton
sketch methods. We pay particular attention to two practical variants in
which the linear systems are solved inexactly, and report the results of
numerical experiments using machine learning datasets.
Host: Karen Livescu, klivescu 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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