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***  The location has changed from SustemHouse to BNR Carling.
***  Everyone is welcome to attend.


                     Ottawa ACM/SIGCHI April Meeting
                     ===============================

                  Date:       Wednesday, April 20, 1994

                  Time:       19:00 - 21:00

                  Place:      BNR Carling Auditorium
                              (Southwest corner of
                              Carling and Moodie, Nepean.)

                  Speaker:    Mark H. Chignell
                              Department of Industrial Engineering
                              University of Toronto

                  Topic:      Text Retrieval: The Case of the Missing   
                              User Interface

          ***  Our speaker is sponsored by BNR.  The Ottawa    ***
          ***  ACM/SIGCHI would like to extend a special       *** 
          ***  thank you to Arlen Michaels (BNR) for arranging ***
          ***  this.                                           ***


                              About the Talk
                              ==============

The past decade has seen a remarkable change in the visibility and 
status of the user interface for computer applications. This has 
resulted in user interface standards, guidelines, and a whole new 
discipline of usability engineering. Applications that run on personal 
computers have generally been at the forefront of the user interface 
revolution. Mainframe applications in general, and database applications 
in particular, have generally seen less revolution and evolution in 
their user interfaces. 

Large scale text retrieval systems grew out of the mainframe 
environments of the 1960s. As a result, text retrieval interfaces tend 
to be batch oriented, and encourage command-based interaction rather 
than direct manipulation. However, the interface revolution is slowly 
spreading to the field of text retrieval. This talk will discuss the 
problem of user interface design for text retrieval, and will describe 
methods and applications for making the role of the user more prominent 
and effective in text retrieval. In particular, the Queries-R-Links and 
SuperBook systems will be described as examples of user-oriented 
information exploration systems. The effect of the new emphasis on user 
interfaces for future paradigms of information retrieval will also be 
discussed. 


                           About the Speaker
                           =================

Mark Chignell is an associate professor of Industrial Engineering at the
University of Toronto. He has a Ph.D in Psychology from the University 
of Canterbury (New Zealand, 1981) and an MS in Industrial and Systems
Engineering from Ohio State University (1984). He taught Psychology at
Monash University (1980-82), and was a postdoctoral fellow at the Human
Performance Laboratory (Ohio State) in 1982-83. He was an assistant
professor of Industrial and Systems Engineering at the University of
Southern California (1984-1990) before moving to Toronto. He has
co-authored books on expert systems and intelligent databases (published 
by John Wiley and Sons) and has research interests in the areas of user
interface design and information technology. His current research focus 
is on the development of handheld multimedia information systems and
electronic books. In addition to ITRC, his research is presently funded 
by NSERC, Ricoh Corporation of Japan, AECL, and Apple Computer. 

He is a member of the Telepresence project at the University of Toronto 
and works within the human factors and information systems groups in the
industrial engineering department there.  

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For further information contact:
-------------------------------

Chair:       Peter Szmyt    (613)228-5100 x4029  75470.420@CompuServ.com

Treasurer &
Memberships: Alan Frank     (613)763-2553       afrank@bnr.ca

Program
Director:    Maryam Banaei  (613)763-4892       maryam@bnr.ca

Newsletter
Editors:     Tom D'Ippolito (613)788-6629       tdippoli@ccs.carleton.ca
             Ron Pinder     (613)763-8551       pinder@bnr.ca