[Colloquium] Research at TTIC: George Papandreou, TTIC

[Dawn Ellis]

When:     Friday, October 10th at Noon

Where:    TTIC, 6045 S Kenwood Avenue, 5th Floor, Room 526

Who:       George Papandreou, TTIC

Title:       Deep Epitomic Networks and Explicit Scale/Position Search for
Image
              Recognition

Abstract:

The talk will focus on the advantages brought by invariant image
representations, especially in the context of deep learning. We will first
review image epitomes as a powerful data structure for transformation-aware
image analysis. We will then see how we can use epitomes to build image
recognition systems invariant to local deformation, both in a bag-of-words
(dictionaries of mini-epitomes) and in a deep learning (deep epitomic nets)
setting. We will discuss next a practical scheme that incorporates global
object position and scale as latent variables into deep epitomic neural
networks, both during training and testing. Deep epitomic nets along with
explicit scale/position search have been the key ingredients in our TTIC_ECP
entry to this year's Imagenet LSVRC image classification competition,
achieving 10.2% top-5 error rate, a 3% performance improvement over a
baseline conventional max-pooled convnet.


***************************************
Research at TTIC Seminar Series

TTIC is hosting a weekly seminar series presenting the research currently
underway at the Institute. Every week a different TTIC faculty member will
present their research.  The lectures are intended both for students
seeking research topics and adviser, and for the general TTIC and
University of Chicago communities interested in hearing what their
colleagues are up to.

To receive announcements about the seminar series, please subscribe to the
mailing list: https://groups.google.com/a/ttic.edu/group/talks/subscribe

Speaker details can be found at: http://www.ttic.edu/tticseminar.php.

For additional questions, please contact David McAllester at
mcallester at ttic.edu


-- 
*Dawn Ellis*
Administrative Coordinator,
Bookkeeper
773-834-1757
dellis at ttic.edu

TTIC
6045 S. Kenwood Ave.
Chicago, IL. 60637
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