From: Stephen Reed (reed@cyc.com)
Date: Tue Feb 22 2005 - 09:12:00 MST
Cyc presently consists of about 2.8 million lines of C code generated from
our Lisp dialect SubL. This includes our own portable SubL runtime
implementation. We also have 100K lines of java application code. About a
third of our staff are programmers.
-Steve
On Mon, 21 Feb 2005, Ben Goertzel wrote:
>
> Well, I think that a completed Novamente AGI would have less than 100K lines
> of C++, and that's without much effort for compactness. I guess this could
> be done in about 20K lines of LISP, again without obsessive effort for
> compactness. If you wanted to be really annoying and aggressive about
> code-length optimization, call it 5K lines of LISP.
>
> And the Novamente design hasn't been created with minimal size in mind,
> quite apart from coding-style issues. I imagine that if one wanted to
> create a modified design that took up as few lines as possible one could get
> it down to 2000 or so lines of highly cryptic LISP code. But this amount of
> compression would have an impact on the speed of self-modifiability because
> the system would have a harder time understanding and modifying its own
> cryptic code in the early stages. I think the 10K-20K lines version would
> be better.
>
> If one wanted to use LISP, which we have decided against at this point,
> though creating a LISP Novamente in the future isn't totally out of the
> question.
>
> -- Ben
>
> > -----Original Message-----
> > From: owner-sl4@sl4.org [mailto:owner-sl4@sl4.org]On Behalf Of sam
> > kayley
> > Sent: Sunday, February 20, 2005 11:18 PM
> > To: sl4@sl4.org
> > Subject: Minimum complexity of AI?
> >
> >
> > Another question unlikely to currently be usefully answerable .. how large
> > do you expect the smallest AGI implementation to be (e.g, in lines of
> > obfuscated lisp)?
> >
> > To make the question somewhat well defined, assume:
> >
> > Memory available around number of synapses in human brain * a small number
> > of bits.
> >
> > Learning from sensory-motor experiences in a robot body, with
> > teaching done
> > by people with minimal special knowledge of the AI's workings (any special
> > knowledge required must be included in the Line Count).
> >
> > Total number of CPU cycles used in learning + proof of being a functioning
> > intelligence no greater than a reasonable estimate of equivalent that a
> > human brain uses in 20 years.
> >
> > Goal system not entirely arbitrary (FAI Line Count is a separate
> > question).
> >
> > Defining roughly human level or greater general intelligence exactly and
> > concisely isn't easy, so I will give some examples as cold water for any
> > cheating philosophers on the list: Learning to play Go to a reasonable
> > standard given an english definition of the rules and/or a partner to play
> > against, arguing whether it is sentient, designing a bicycle given an
> > english description of requirements, driving a car in realistically
> > uncontrolled situations. Challenge task: creating a kit that replaces a
> > persons appendages with blue tentacles with an awkward tendency
> > to curl into
> > the shape of paperclips when not in use, and deciding whether
> > this should be
> > applied to Michael Jackson.
> >
> > Perhaps the compactness and subtlety of the program that generates the
> > mandelbrot set, or some of the IOCCC entries is an appropriate
> > comparison ..
> > length of program + sufficient documentation/comments to be comprehensible
> > is a different question, as is the length of the shortest AGI program that
> > will be written before the science of mind is mature.
> >
> >
> >
> >
>
>
>
--
===========================================================
Stephen L. Reed phone: 512.342.4036
Cycorp, Suite 100 fax: 512.342.4040
3721 Executive Center Drive email: reed@cyc.com
Austin, TX 78731 web: http://www.cyc.com
download OpenCyc at http://www.opencyc.org
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