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Los Angeles (LA) Association for Computing Machinery (ACM)
Technical Activity Committee on Artificial Intelligence (TACART)

             TACART

TOPIC:       Hyperspace Analogue to Language (HAL):
                 Developing a Human Memory
             From 300 Million Words of USENET Text

SPEAKER:     Prof. Curt Burgess
             University of California, Riverside

DATE:        04 December 1996 (Wednesday night)

TIME:        The talk will begin at 8:00.

PLACE:       The Ramada Hotel, Culver City, 6333 Bristol Parkway
             405S: exit Sepulveda/Centinela; 405N: Slauson/Sepulveda
             Hotel Tel # (310) 670-3200.

ABSTRACT:    The Hyperspace Analogue to Language (HAL) model is a
             computer simulation of human memory that goes beyond
             previous ones in two ways: HAL is not given any
             definitions or information about the words it receives,
             and it learns from a vast stream of actual conversations
             extracted from 300 million words of text downloaded from
             Internet discussion groups.  HAL builds a 200-dimensional
             hyperspace in which it stores words. Although HAL is
             unsupervised, it appears that some dimensions correspond
             to meaning. For example, the closest neighbors to the word
             "book" are: story, game, movie, new, film, paper, recent,
             original, issue, series, and word. Models such as HAL show
             that we can mimic the advantages of human memory without
             having to hand build or code lookup lexicons/dictionaries.

BIOGRAPHY:   Prof. Curt Burgess is on the faculty in the Department of 
             Psychology at UC Riverside, and has an adjunct appointment
             in the Computer Science Department. He has 30+ publications,
             mainly in the areas of psycholinguistics, neurolinguistics,
             and computational models of memory and language.  He is a
             Presidential Faculty Fellow, one of 30 each year appointed
             by the President of the United States through an NSF program.
             He is one of only two psychologists to receive this honor.

DINNER:      Social Hr at 6:30. Optional dinner at 7:00 ($19 with a
             reservation - call (310) 472-5968 by Sunday; $21 with no
             reservation). To just attend the talk (free) come at 8:00.
NEWSGROUPS:  Announced in comp.ai, la.seminars, ca.seminars.
HOMEPAGE:    http://kecksvr.eng.lmu.edu/TACART.html (under repair).
CONTACTS:    L. Andrew Campbell campbell@aero.org (310) 336-8642 or
             Program Chair Barney Toma tomab@ecn.com (310) 323-8451.
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| L. Andrew Campbell     internet: campbell@aero.org       |
| M1-102 PO Box 92957    organization: The Aerospace Corp. |
| Los Angeles CA 90009   telephone: (310) 336-8642         |