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AIList Digest Volume 1 Issue 014
AIList Digest Sunday, 12 Jun 1983 Volume 1 : Issue 14
Today's Topics:
VAX or PDP-11/23 LISP?
Fortune or Onyx LISP?
Re: Visual After-effects
Springer Verlag Prize for Symbolic Computation at IJCAI-83
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Date: 9 Jun 1983 1342-PDT
From: JBROOKSHIRE@USC-ECLB
Subject: UNIX, Eunice, LISP
Naive users looking for connection whereby we might
i. get LISP for VAX/VMS, maybe via Eunice?
ii. get lisp for PDP-11/23, RSX-11, Maybe same? Pointers to
contacts will be greatly appreciated. Jerry
[Availability of VAX Interlisp was noted in V1 #10. Contact
Interlisp@ISIB. -- KIL]
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Date: 10 June 1983 06:34 EDT
From: Michael A. Bloom <MCB @ MIT-MC>
Subject: Lisps? Fortune? or Onyx?
I'm looking for a Lisp for the Fortune 68K computer. Is anyone aware
of one existing? Has anyone ported Franz Lisp to the fortune?
Also, has anyone ported ANY Lisp to the Onyx C8002 running system
III?
I'll be grateful for any leads.
- Michael Bloom
mcb@mit-mc
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Date: 9 Jun 83 16:42:42-PDT (Thu)
From: decvax!cca!linus!utzoo!dciem!mmt @ Ucb-Vax
Subject: Re: Visual After-effects
Article-I.D.: dciem.240
Actually, the blind-spot game of removing people's heads has a long
history. King Charles II of England used to amuse himself by seeing
how his courtiers would look without their heads. And it is true that
any regular pattern behind will be filled in across either the normal
blind spot or blind spots due to retinal problems.
As for the effect in which objects tend to disappear if stared at,
this is normally studied with special devices attached to the eyeball
(on a contact lens) to ensure that the visual world remains stationary
on the eye. Objects rapidly vanish under these conditions, but
reappear in fragmentary form from time to time. Very slight shifts of
viewpoint tend to make the objects come back, which is probably the
reason attending to a detail "behind" the object makes it return. It
is easier to make things with blurred or diffuse edges go away than
things with sharp edges (so I imagine people with poor eyesight can do
it easier than people with good vision).
The effect of changing letter size after watching for game objects
that change size is another example of the same kind of thing as the
railroad track after-movement effect. It's probably a different visual
channel (we have separate channels for size changes and for movement)
but the principle is the same. Some people claim that the effect is
due to fatigue of the system sensitive to movement in one direction,
leaving the balancing components sensitive to movement in the other
direction to control what is seen when the stimulation is neutral.
(i.e. the other direction is more sensitive after one is fatigued).
I'm not convinced by this explanation. Things are probably more
complicated than that.
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Date: Tuesday, 7-Jun-83 17:20:13-BST
From: BUNDY HPS (on ERCC DEC-10) <bundy@edxa>
Reply-to: bundy@rutgers
Subject: Springer Verlag Prize for Symbolic Computation at IJCAI-83
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IJCAI-83
SPRINGER-VERLAG PRIZE FOR SYMBOLIC COMPUTATION
I am please to announce that the paper, "Scale-Space Filtering", by
Andy Witkin of Fairchild Artificial Intelligence Research Laboratory,
has been awarded the Springer-Verlag prize for Symbolic Computation.
The prize will be presented at the Eighth International Joint
Conference on Artificial Intelligence, to be held in Karlsruhe, West
Germany, from 8th to 12th August 1983.
The Symbolic Computation Prize has recently been announced by
Springer-Verlag, as a sign of their interest in Artificial
Intelligence and in the work of the scientists active in this field.
It is named after their new book series on Artificial Intelligence and
Computer Graphics, and is awarded, by the programme committee, to the
best paper contributed to the IJCAI conference. The prize is $500.
The IJCAI-83 programme committee has interpreted its brief as being to
select the paper which best meets the following criteria.
(a) It reports a significant and original piece of research of direct
relevance to Artificial Intelligence.
(b) This research serves as a model for how Artificial Intelligence
research should be conducted.
(c) The paper is well presented for a specialist reader.
Witkin's paper is clearly presented and is intelligible to a
non-specialist reader, without sacrificing technical validity and
clarity. It describes a new approach to perceptual organization, and
an implementation with satisfying performance.
Among the other papers submitted to IJCAI-83 and considered for the
Symbolic Computation Prize, the programme committee would like to give
an honourable mention to "Completeness of the Negation as Failure
Rule", by Joxan Jaffar, Jean-Louis Lassez and John Lloyd of the
University of Melbourne.
Alan Bundy
Programme Chairman, IJCAI-83
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End of AIList Digest
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