Forum for AI: Daniel Lee/University of Pennsylvania Learning in Artificial Sensorimotor Systems in ACES 2.302

Contact Name: 
Jenna Whitney
Date: 
Mar 10, 2006 11:00am - 12:00pm


There is a signup schedule for this event.

Speaker
Name/Affiliation: Daniel Lee/University of Pennsylvania

Talk Title

: Learning in Artificial Sensorimotor Systems

Date/Time: March 10
2006 at 11:00 a.m.

Location: ACES 2.302

Host: Peter Stone<

br>
Talk Abstract:
Many algorithms in machine learning involve changi

ng the underlying
dimensionality of the data set. Unsupervised learning

techniques such
as principal components analysis typically involve dimen

sionality
reduction whereas supervised learning techniques such as supp

ort
vector machines can be understood as mapping the data to a higher
dimensional space. Equivalent problems emerge when considering
informat

ion processing in sensorimotor systems. Sensory processing
requires mapp

ing high-dimensional sensory inputs onto a smaller number
of perceptuall

y-relevant features whereas motor learning involves
driving a large num

ber of actuator parameters with a smaller number of
control variables. I
will describe some of our recently developed
learning algorithms that u

tilize changes in dimensionality and
demonstrate their application on s

ome prototypical robotic systems.

Speaker Bio:
Daniel D. Lee is c

urrently an Associate Professor of Electrical
and Systems Engineering a

t the University of Pennsylvania
with a secondary appointment in the D

epartment of Bioengineering.
He received his B.A. in Physics from Harva

rd University
in 1990 and his Ph.D. in Condensed Matter Physics from <

br>the Massachusetts Institute of Technology in 1995. He was
a research

er at Bell Laboratories Lucent Technologies
from 1995-2001 in the The

oretical Physics and Biological
Computation departments. His research f

ocuses on understanding
the general principles that biological systems

use to process
and organize information and on applying that knowledge

to build better artificial sensorimotor systems. He resides
in New
Jersey with his wife Lisa four-year old son Jordan
and two-year old

daughter Jessica.