[Crib-list] SPEAKER: Jenelle Feather (MIT) | CRIBB Seminar | Friday, Oct. 2, 2020 | 12:00 PM to 1:00 PM - ZOOM info below

[Shirley Entzminger]

 	 Computational Research in Boston and Beyond Seminar
                                (CRIBB)


ZOOM Information...

 	https://mit.zoom.us/j/96155042770
 	Meeting ID: 961 5504 2770

================================================

DATE:	  Friday, October 2, 2020

TIME:	  12:00 Noon to 1:00 PM


TITLE:	  Metamers Of Neural Networks Reveal Divergence From Human
 	  Perceptual Systems


SPEAKER:  JENELLE FEATHER  (MIT)


ABSTRACT:

Artificial neural networks now achieve human-level performance on tasks 
such as image and speech recognition, raising the question of whether they 
should be taken seriously as models of biological sensory systems.  Such 
neural network models exhibit human-like patterns of behavior, and their 
feature spaces reliably predict brain activity.  On the other hand, neural 
network models can often be fooled by small adversarial perturbations that 
have no effect on humans.  In this talk, I will detail our work using 
“model metamers” to investigate similarities between neural networks and 
human sensory systems.  Model metamers are physically distinct stimuli 
that produce nearly the same response within a model, and thus the same 
model prediction.  Our results show that despite replicating aspects of 
human behavior and neural responses, present-day deep neural networks 
learn invariances that deviate markedly from those of biological sensory 
systems.  Model metamers may help guide future model refinements to reduce 
or eliminate these discrepancies.

  =====================================

Massachusetts Institute of Technology
Cambridge, MA



For information about the "Computational Research in Boston and Beyond Seminar" 
(CRIBB), please visit https://math.mit.edu/crib/


ZOOM information listed at the beginning of this email, on the attached 
poster and on the CRIBB Website..

==============

Shirley A. Entzminger
Administrative Assistant II
Department of Mathematics
Massachusetts Institute of Technology
77 Massachusetts Avenue
Building 2, Room 350A
Cambridge, MA 02139
PHONE: 	(617) 253-4994
FAX:	(617) 253-4358
E-mail:	daisymae at math.mit.edu


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