Jyoti wrote: (01)
> I am a new member to this forum, and was wondering if in the past there
> has been a presentation on rules for the semantic Web? If yes, could
> someone please provide me the relevant URLs? And if not, do we plan to
> have such a presentation in the future? (02)
"rules for the Semantic Web" is not a well-defined concept. There are
three major activities, which may or may not be currently closely
coupled, depending on whom you ask:
- the W3C Rule Interchange Format Working Group, which is ostensibly
about a standard XML form for interchange of "rules" among "conventional
rules engines" (aka "directed reasoning" systems), like Jess and Jena
and the ILOG engine, but is populated by enough Semantic Spiders that
the relationship to RDF and SPARQL is a major "requirement".
- the SWRL work, which is about a computationally bounded "rules
language" for things like static validation, that is solidly grounded in
first-order reasoning. (This is primarily a community of former OWL
developers.)
- the RuleML work, which began as an XML version of Prolog, but now
includes 5 languages with largely common syntax and largely distinct
semantics: Logic Programming (a la Prolog), Condition/Action (directed
reasoning a la Rete), Event/Condition/Action, Validation, and
Transformation. (This is primarily a community of people who think OWL
is a waste of time, but agree on little else.) (03)
There were (brief) presentations on all of these at the 2006
WorldWideWeb conference, and they show up pretty regularly at other
"semantic web" conferences and sessions. And there are probably at
least three others I don't know anything about. I don't believe the
Ontolog Forum has yet hosted a presentation on any of them. And IMO, we
would first have to decide how many different "rule" concepts we want to
talk about and which ones. (04)
-Ed (05)
--
Edward J. Barkmeyer Email: edbark@xxxxxxxx
National Institute of Standards & Technology
Manufacturing Systems Integration Division
100 Bureau Drive, Stop 8263 Tel: +1 301-975-3528
Gaithersburg, MD 20899-8263 FAX: +1 301-975-4694 (06)
"The opinions expressed above do not reflect consensus of NIST,
and have not been reviewed by any Government authority." (07)
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