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acm

SIGART Chicago

September, 1996

News of the Special Interest Group on Artificial Intelligence
of the Chicago Chapter of the Association for Computing Machinery

NEWS AND NOTES

Please note upcoming meeting dates on your calendar now so you wont miss a
single meeting:

September 5, 1996 - Dale Reed Borrowing Others' Ears: A Perceptual Assistant
for Sound Equalization.
December 5, 1996 - To be announced
March 6, 1997 - To be announced

This months talk looks into inductive learning in expert systems, and relates
it to a practical application - sound equalization.

September Meeting Announcement

Borrowing Other Ears - A Perceptual Assistant for Sound Equalization
by Dale Reed
Abstract:

Inductive learning can be used to perform an expert skill using nearest neighbor
pattern recognition.  This is demonstrated through a sound equalization expert
system which learns to proficiently adjust the timbres (sound qualities) of
brightness, darkness, and smoothness in a context-dependent fashion.  This
functions as an intelligent computer interface in the computer-human interaction
(CHI) paradigm where the computer is used as a tool to sense, process, and act
in helping the user perform a perceptual task.  Adjusting timbres of sound is
complicated by the fact that there are non-linear relationships between
equalization adjustments and perceived sound quality changes.  The developed
system is innovative in that it applies the established nearest-neighbor
technique to the new application area of performing a skillful perceptual task.
This combination has been made possible through advances in computer memory and
processor technology, making previously intractable problems now feasible.  The
developed system shows that the nearest-neighbor context-dependent equalization
is rated 68% higher than the set linear average equalization and that it is
preferred 81% of the time.  Future work is discussed.

Speaker:

Dale Reed was born at a very young age in Hollywood California.  His parents
were missionaries and he spent his growing up years in Ecuador and Mexico.
Seemingly at the height of his career, he left a bakery business behind when he
came to Chicago to study at North Park College, where he double majored in
English and Computer Science. Market forces for English majors being what they
are, he entered graduate school at Northwestern University in computer science.
Marriage, two children, and playing in a band kept being interrupted by his
Ph.D. until he finally finished it in December of '95.  He was a faculty member
in the Math Department at Loyola University and directed a bilingual inner-city
educational program in Chicago for six years.  He is currently a Lecturer in the
EECS Department at UIC.

Date: Thursday, 9/5/96

Time: 5:30 p.m. Refreshments & Snacks; 6:30 p.m. Speaker

Place: IITs Chicago Kent Law School
          565 West Adams St., Chicago
IMPORTANT - ROOM UNCERTAIN AT PRESS TIME.  PLEASE CALL FOR A RESERVATION TO
LEARN THE ROOM NUMBER.

Cost: $8.00 Members; $10.00 Non-Members; $4.00 Students

Reservations: Call John Garton, (312) 327-9250.  Please DO try to make a
reservation, it really helps us plan the meeting space.
Information: Call John Garton, (312) 327-9250.

Travel Directions to SIGART Meeting:
Via Metra:      Use Union Street Station.  Walk West on Adams St.
Via CTA:        Take Ravenswood, Evanston, or Midway trains to Adams St.  
   Walk West on Adams St.
Via Bus:                Bus #41, 60, 125, 151, 156, 157 to Union Station.  
   Walk West on Adams St.
Via Car:        Kennedy/Dan Ryan to Monroe exit.  Go East to Clinton, 
   South to Adams.  On street parking is limited.  There are several 
   parking lots in the area.
Walking:        Walk West from the Loop on Adams St.

-- 
Brian M. Slator, The Institute for the Learning Sciences
slator@ils.nwu.edu        http://www.ils.nwu.edu/~slator/
"We're 106 miles from Chicago, we have a full tank of gas,
a half a pack of cigarettes, it's dark, and we're wearing
sunglasses." (Elwood Blues) "Hit it." (Jake Blues)