Comments for Semai

Comment on Using RDFS or OWL as a schema language for validating RDF by schema mechanism

schema mechanism — Sun, 04 Apr 2010 14:25:48 +0000

[...] that will work with … ( This conditional inclusion mechanism is not part of XSD 1.0, and …Semai Blog Archive Using RDFS or OWL as a schema language …Developers new to RDF can easily mistake RDFS as being a schema language (perhaps because the S' [...]

Comment on RDF Result sets by subgraph

subgraph — Fri, 02 Apr 2010 08:17:04 +0000

[...] through that same subgraph and trying to find related users we'd need to use different logic. …Semai Blog Archive RDF Result sets[This post was prompted by a discussion with Jeni Tennison and will probably end up cross ... This [...]

Comment on FAQ: Why do rdfs:domain and :range work backwards? by Dave

Dave — Fri, 13 Nov 2009 16:32:09 +0000

Thanks Jos. Quite agree. The original text was in the context of the Jena OWL full reasoners for which the optional extensional RDFS semantic rules are enabled. That should have been made clear in the posting.

Comment on FAQ: Why do rdfs:domain and :range work backwards? by Jos de Bruijn

Jos de Bruijn — Fri, 13 Nov 2009 16:26:05 +0000

Be advised that under normative RDFS entailment,
eg:personalName rdfs:domain eg:Animal .
will *not* be entailed. However, all resources in the domain of eg:personalName will be of rdf:type eg:Animal. Thus, the domain constraint holds in practice, but the statement asserting the constraint does not, because of the intensional nature of normative RDFS entailment.

Comment on OWL 2 for RDF vocabularies by William Vambenepe — OWL news you can use

William Vambenepe — OWL news you can use — Wed, 28 Oct 2009 08:27:16 +0000

[...] Reynolds’ overview of OWL2, with a focus on vocabularies and [...]

Comment on OWL 2 for RDF vocabularies by Tweets that mention Semai » Blog Archive » OWL 2 for RDF vocabularies -- Topsy.com

Mon, 26 Oct 2009 17:03:01 +0000

[...] This post was mentioned on Twitter by Leigh Dodds, Bob DuCharme and twitt_bot, William Vambenepe. William Vambenepe said: RT: @bobdc: Nice intro to basic ideas of OWL 2 from Dave Reynolds: http://bit.ly/FQr0q [...]

Comment on OWL 2 for RDF vocabularies by admin

admin — Mon, 26 Oct 2009 14:04:14 +0000

Hi Kendall,

Thanks for the pointers, interesting work.

Dave

Comment on OWL 2 for RDF vocabularies by Bob DuCharme (bobdc) 's status on Monday, 26-Oct-09 13:43:01 UTC - Identi.ca

Bob DuCharme (bobdc) 's status on Monday, 26-Oct-09 13:43:01 UTC - Identi.ca — Mon, 26 Oct 2009 13:43:26 +0000

[...] http://www.amberdown.net/2009/10/owl2-for-rdf-vocabs/ a few seconds ago from web [...]

Comment on OWL 2 for RDF vocabularies by Kendall Clark

Kendall Clark — Mon, 26 Oct 2009 12:55:00 +0000

Hi Dave,

Very cool post. We’ve been working on extending Pellet with closed world reasoning semantics for OWL in order to do what you’re describing: using OWL as a constraint language for RDF (and other) data. We’ve released a prototype and have a series of blog posts describing the work:

http://clarkparsia.com/weblog/category/semweb/owl/pellet/integrity-constraints/