🚀 go-pugleaf

PSYCOLOQUY   (ISSN 1055-0143)   Fri, 22 Feb 91       Volume 2 : Issue   3
      Animal Research Information Board
      Paper available: Visual Orientation Multiplexing
      Cog Sci 1991 Announcement.
      Psychology Software News

---------------------------------------------------------------------
From: Ron Wood <WOOD@MVAX.MED.NYU.EDU>

Subscribe to the ANIMAL RESEARCH INFORMATION BOARD

The ANIMAL RESEARCH INFORMATION BOARD -- an electronic bulletin board
available only through BITNET or INTERNET -- will have information and items of
interest on the use of animals in research. It will include the latest informa-
tion on:

o     activities in Congress (legislation and hearings), the Federal agencies,
      and the States;
o     Federal regulations;
o     pro- and anti- animal research groups;
o     campus activities, and more!

This is a moderated board and material for possible posting will be sent to an
editor.  Those who have access to BITNET or INTERNET can sign on to this
service by sending a mail message to: LISTSERV@GWUVM.bitnet

with the following command in the body of the text:
                           SUBSCRIBE APAARIB your name

For more advice on how to issue such a command, consult your university
computer technical assistance staff.  It other problems exist, contact Science
Directorate staff member Elizabeth Baldwin through e-mail at: APASDEAB@GWUVM
or by phone at (202)955-7653.

                       American Psychological Association
                               Science Directorate
                                1200 17th St. NW
                              Washington, DC 20036

-----------------------------------------------------------------
From: Jonathan Marshall <marshall@cs.unc.edu>
Subject: Paper available -- visual orientation multiplexing

	  **** Please do not re-post to other bboards. ****
               Papers available, hardcopy only.

       ADAPTIVE NEURAL METHODS FOR MULTIPLEXING ORIENTED EDGES

			 Jonathan A. Marshall
		    Department of Computer Science
	     University of North Carolina at Chapel Hill
                   Chapel Hill, NC 27599-3175

Edge linearization operators are often used in computer vision and in
neural network models of vision to reconstruct noisy or incomplete
edges.  Such operators gather evidence for the presence of an edge at
various orientations across all image locations and then choose the
orientation that best fits the data at each point.  One disadvantage
of such methods is that they often function in a winner-take-all
fashion: the presence of only a single orientation can be represented
at any point; multiple edges cannot be represented where they
intersect.  For example, the neural Boundary Contour System of
Grossberg and Mingolla implements a form of winner-take-all
competition between orthogonal orientations at each spatial location,
to promote sharpening of noisy, uncertain image data.  But that
competition may produce rivalry, oscillation, instability, or mutual
suppression when intersecting edges (e.g., a cross) are present.  This
"cross problem" exists for all techniques, including Markov Random
Fields, where a representation of a chosen favored orientation
suppresses representations of alternate orientations.

A new adaptive technique, using both an inhibitory learning rule and
an excitatory learning rule, weakens inhibition between neurons
representing poorly correlated orientations.  It may reasonably be
assumed that neurons coding dissimilar orientations are less likely to
be coactivated than neurons coding similar orientations.  Multiplexing
by superposition is ordinarily generated: combinations of intersecting
edges become represented by simultaneous activation of multiple
neurons, each of which represents a single supported oriented edge.
Unsupported or weakly supported orientations are suppressed.  The
cross problem is thereby solved.

[to appear in Proceedings of the SPIE Conference on Advances in
Intelligent Systems, Boston, November 1990.]

Also available:

J.A. Marshall, "A Self-Organizing Scale-Sensitive Neural Network."
	In Proceedings of the International Joint Conference on
	Neural Networks, San Diego, June 1990, Vol.III., pp.649-654.

J.A. Marshall, "Self-Organizing Neural Networks for Perception of
	Visual Motion."  Neural Networks, 3, pp.45-74 (1990).

=   Jonathan A. Marshall			  marshall@cs.unc.edu   =

----------------------------------------------------------------
From: Kris Hammond <kris@gargoyle.uchicago.edu>
Subject: Cog Sci 1991 Announcement.

               CLARIFICATION OF THE CALL FOR PAPERS

        The Thirteenth Annual Meeting of  The Cognitive Science Society
            August 7th - 10th 1991 Chicago, Illinois

In order to avoid overlapping the submission date for the Machine
Learning Conference and give authors as much time as possible to
prepare their papers, we have extended the deadline for Cognitive
Science 1991 such that papers must be RECEIVED BY MARCH 18TH, 1991.

We are also requesting that papers be limited to eight (8) pages to
better approximate their final camera ready form.

Authors should submit five (5) copies of their papers in hard copy
form.  All paper submissions should be sent to:


           Cognitive Science 1991
           Department of Computer Science
           University of Chicago
           1100 East 58th Street
           Chicago, IL 60637

Papers will be accepted either for presentation as talks or posters.
Authors are encouraged to submit new work to the poster sessions.
They provide a less formal forum for introducing work in its early
stages.

Length: Papers should be 8 pages long (excluding title page); have 1
inch margins on top, bottom, and sides; and use no smaller than 10pt
type.

Camera ready versions of papers will be required only after authors
are notified of acceptance.

Title Page: Each copy of the paper must include a title page, separate
from the body of the paper. This should contain:

1. Title of the paper.
2. Full names, postal addresses, phone numbers, and email addresses (if
   available) of all authors.
3. An abstract of 100-200 words.
4. The area/subarea in which the paper should be reviewed.
5. A note stating whether the first author is a student and
 should thus be considered for the David Marr award.

Time Table: In order to avoid overlapping the submission date for the
Machine Learning Conference, we have extended the deadline for
Cognitive Science such that papers must be RECEIVED BY MARCH 18TH,
1991.

Notification of acceptance or rejection will be made on or before
April 24th, 1991 with camera ready versions of papers due May 20th.

Symposia: Symposium proposals should include a single page describing
the issue or issues that the panel will address, followed by a page for
each participant describing relevant work.  In general, we recommend
that
individuals interested in chairing symposia contact the Program Chairs
as soon as possible so that details of personnel and content can be
discussed.

Videotape/Computer Presentations: Videotape and computer presentations
will be made during the poster sessions.  We are interested in
presentations that demonstrate results
in the areas of: Artificial Intelligence, Protocol analysis,
Educational tools, and Cognitive Ethnographic studies.  Authors should
submit one copy of a videotape of 15 minutes maximum duration,
accompanied by a submission letter that includes:

Title; names, addresses, phone numbers, and email addresses of all
authors; three copies of an abstract of one to two pages in length.

Researchers wishing to present computer demonstrations should contact
Kristian Hammond as soon as possible to discuss review criteria and
ensure machine availability.

Contact:
           Kristian Hammond
           Department of Computer Science
           University of Chicago
           1100 East 58th Street
           Chicago, IL 60637

           Dedre Gentner
           Department of Psychology
           Northwestern University
           Evanston, IL 60201

Phone:   (312) 702-1571
Electronic Mail: cogsci91@gargoyle.uchicago.edu

-----------------------------------------------------------------
From: PSYC4%VAXA.YORK.AC.UK
Subject: Psychology Software News

ANNOUNCING A PUBLICATION FOR TEACHERS OF PSYCHOLOGY

      *** PSYCHOLOGY SOFTWARE NEWS ***

A newsletter for Psychologists with a concern for using computers in
teaching. Psychology Software News is published in the UK by the
Computers in Teaching Initiaitve (CTI) Centre for Psychology with the
support of a Government grant. The publication is now being made
available internationally to promote a wider discussion of the use of
educational technology in psychology teaching.

Psychology Software News provides information on the use of computers
in the teaching of psychology and offers a forum for discussion about
the latest developments in information technology and educational
innovation. The Newsletter is less formal than Journals such as
Behavior Research Methods, Instruments, and Computers, although it does
include a section for peer-reviewed articles. Psychology Software News
is published three times a year.

The editors welcome submitted articles or items for review. Regular
features of the Newsletter include articles on computers and teaching
practice, on educational innovation and on software development as well
as reviews of software.

Editors: Nick Hammond, University of York, UK
Annie Trapp, University of York, UK

International advisory board
Geoff Cumming, La Trobe University, Australia
Tom Hewett, Drexel University, USA
Walter Schneider, Learning Research and Development
Center, University of Pittsburgh University, USA

Subscription Information: Chris Jardine CTI Centre for Psychology
University of York York YO1 5DD UK

Email: CTIPSYCH@YORK.AC.UK Phone: +44(904)433156 Fax: +44(904)432917

---------------------------------------------------------------

End of PSYCOLOQUY Digest
******************************