[comp.ai] growing software - darwinian model

clairday@edsews.EDS.COM (matt clairday) (03/01/90)

I wonder if anyone saw the article two days ago in the Wall Street Journal
concerning an AI project at UCLA?  The article described the work of
David Jefferson, a CS person there.  He is working on the idea of "growing"
software.

quoting now: " At a Santa Fe conference on "artificail life" this month,
Mr. Jefferson described the evolution of some "electronic ants" created on
a computer, illuminating a program that could offer a new model on writing
software."

He desinged a simulated environment for these "ants" where they were judged
on their "performance" in navigating a simulated trail.  Only the best 10%
survived during each generation. "After creating 200 generations of ants,
Mr. Jefferson had a strain of super ants who follow the trail with ease."

This subject is very interesting to me.
If anyone has any info on how I might get a copy of this paper, a contact
address for Mr. Jefferson, or any info on the New Mexico conference on 
artificial life, I would very much appriciate it. thanks
.

kurt@happy.csg.uiuc.edu (Kurt) (03/02/90)

In article <23107@edsews.EDS.COM> clairday@edsews.EDS.COM (matt clairday) writes:
>I wonder if anyone saw the article two days ago in the Wall Street Journal
>concerning an AI project at UCLA?  The article described the work of
>David Jefferson, a CS person there.  He is working on the idea of "growing"
>software.
>
>He desinged a simulated environment for these "ants" where they were judged
>on their "performance" in navigating a simulated trail.  Only the best 10%
>survived during each generation. "After creating 200 generations of ants,
>Mr. Jefferson had a strain of super ants who follow the trail with ease."


The problem with this work is that the ants only learned how to solve the
traversal of a specific path.  If they were given a different path with
the same sort of characteristics, they were not able to traverse it.  Also,
learning one path did not help in subsequent learning of other paths.  If
I remember his talk correctly, learning one path actually hinderend learning
other paths.  It appears that much more work must be done so that 
the techniques he presented are applicable to multiple instances of the
same sort of problem.


kurt

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Kurt Thearling                               1101 W. Springfield Avenue
University of Illinois                                Urbana, Il  61801
Coordinated Science Lab                          kurt@bach.csg.uiuc.edu 
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dmn@stiatl.UUCP (Michael Nowacki) (03/02/90)

In <1990Mar1.212630.20380@ux1.cso.uiuc.edu> kurt@happy.csg.uiuc.edu writes:
>In  <23107@edsews.EDS.COM> clairday@edsews.EDS.COM (matt clairday) writes:
>>concerning an AI project at UCLA?
>> "After creating 200 generations of ants,
>>Mr. Jefferson had a strain of super ants who follow the trail with ease."
>
>
>The problem with this work is that the ants only learned how to solve the
>traversal of a specific path.

i recall reading about experiments that indicated that learned behavior could
be inherited (in rats, anyway) years ago.
so maybe we inherit our parent's habits.
no shit.
certainly their BAD habits are almost inevitably ours. the UCLA experiment could
be said to indicate that one of our problems is that we inherit habits, and this
is an obstacle to manifesting intelligence.
or maybe its just habits in general.
as roz chast would say, "who knows?"

-- 
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