> From [EMAIL PROTECTED] Tue Aug 15 13:06:13 2000
>
> Could someone provide me some info (or knowledge of where
> to find such info) on how JESS supports Truth Maintenance, or
> what other TM systems it might work best with?
> Any help would be greatly appreciated!
>
> Regards,
> -Jim
Back in the days of CLIPS V.5, which supposedly supported truth
maintenance (using the "logical" CE) but in fact did so in an incomplete
manner - I was compelled to implement an application level version of
TM in CLIPS. When CLIPS V.6 came out, truth maintenance worked fine and
my implementation was no longer needed in the application I was working
on.
When I started using Jess, a few years ago, it was this application that I
was converting from CLIPS to Jess, and I believe I converted the earlier
version, which included my home grown TM. So I think that at least one
application-level implementation of TM in Jess exists. However, it is,
as you would expect, depressingly sluggish, with facts continually being
retracted and reasserted. So, it's not an approach I'd recommend for
a production quality system.
Are there any other voters for implemeting "logical" in Jess, perhaps in
the new, rationalized version that's been discussed over the past few weeks?
(I haven't looked carefully at Jess V6 yet, so if it's already there, that's
great.)
Sidney Bailin
Knowledge Evolution, Inc.
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