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                        S E M I N A R
                    Centre for HCI Design
                    School of Informatics
                       City University

                Friday 26th February, 11.00hrs,
                 Room A529, College Building


                       The Eyes Have It:
          User Interfaces for Information Visualization

          Ben Shneiderman, Department of Computer Science
          Director, Human-Computer Interaction Laboratory
          University of Maryland, College Park, MD  20742


Human perceptual skills are remarkable, but largely underutilized by current
graphical user interfaces.  The next generation of animated GUIs and
visual data mining tools can provide users with remarkable capabilities
if designers follow the Visual Information-Seeking Mantra:

    Overview first, zoom and filter, then details-on-demand.

But this is only a starting point in the path to understanding the rich
set of information visualizations that have been proposed.  Two other
landmarks are:

    Direct manipulation: visual representation of the objects and
      actions of interest and rapid, incremental, and reversible operations

    Dynamic queries: user controlled query widgets, such as sliders and
      buttons, that update the result set within 100msec.

and are shown in the FilmFinder, Visible Human Explorer (for National Library
of Medicine's anatomical data), NASA EOSDIS (for environmental data), and
LifeLines (for medical records and personal histories).

As a guide to research, information visualizations can be categorized into
7 datatypes (1-, 2-, 3-dimensional data, temporal and multi-dimensional data,
and tree and network data) and 7 tasks (overview, zoom, filter,
details-on-demand,
relate, history, and extract).  Research directions include algorithms for
rapid display update with millions of data points, strategies to explore
vast multi-dimensional spaces of linked data, and design of advanced user
controls.

---------- Personal: http://www.cs.umd.edu/~ben -----------------
------------ Lab: http://www.cs.umd.edu/hcil --------------------

Ben Shneiderman is a Professor in the Department of Computer
Science, Head of the Human-Computer Interaction Laboratory, and
Member of the Institutes for Advanced Computer Studies and for Systems
Research, all at the University of Maryland at College Park.

His most recent book (January 1999), co-authored with Stuart Card
and Jock Mackinlay, is Readings in Information Visualization: Using
Vision to Think.

Dr. Shneiderman is the author of Software Psychology: Human
Factors in Computer and Information Systems (1980) and Designing
the User Interface: Strategies for Effective Human-Computer
Interaction (1987, second edition 1992, third edition 1998),
Addison-Wesley Publishers, Reading, MA.

Dr. Shneiderman has co-authored two textbooks, edited three
technical books, and published more than 200 technical papers and
book chapters.  His 1993 edited book Sparks of Innovation in
Human-Computer Interaction collects 25 papers from ten years of
research at the University of Maryland.  This collection includes
Dr. Shneiderman's seminal paper on direct manipulation, a term he
coined in 1981 to describe the graphical user interface design
principles: visual presentation of objects and actions combined
with pointing techniques to accomplish rapid incremental and
reversible operations.

Ben Shneiderman received his BS from City College of New York in
1968, his PhD from State University of New York at Stony Brook in
1973.  He received an Honorary Doctorate of Science from the
University of Guelph, Ontario, Canada in 1996 and was elected as
a Fellow of the Association for Computing (ACM) in 1997.

For directions, see:
http://www.soi.city.ac.uk/homes/msch/seminar/

For general queries, contact Neil Maiden at address below.

Dr Neil Maiden            
 Senior Lecturer           
 Centre for HCI Design     E-Mail: [log in to unmask]
 City University           http://www.soi.city.ac.uk/~cc559/info.html
 Northampton Square
 London EC1V OHB

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