Thanks Scott,

What is the best way to go about understanding SPIN enough (as I read your 
recommendation) to compare with something 
like https://jena.apache.org/documentation/inference/index.html (which, 
again, as I read, is about Jena rules but quite powerful it seems) ?

Many thanks,
Nick


On Thursday, March 31, 2011 at 12:03:20 PM UTC-4, Scott Henninger wrote:
>
> Aziza; Generally speaking, expressiveness refers to a language's 
> ability to express concepts.  For example Jena Rules do not support 
> disjunction, and SPARQL does (UNION), therefore SPARQL can be said to 
> be more expressive than Jena Rules (and SWRL, IIRC).  For more on Jena 
> rules, I'd suggest you look through 
> http://hydrogen.informatik.tu-cottbus.de/wiki/index.php/JenaRules. 
>
> In general the expressiveness of Jena Rules and SPARQL are similar, 
> but the real difference is that SPARQL is an active W3C 
> recommendation, and I am unaware of any current efforts to further 
> enhance Jena Rules.  In fact SPARQL has adopted some features from 
> Jena Rules.  I.e. the real difference here is not necessarily 
> expressiveness, but standardization and maintenance. 
>
> Given this, we would encourage any customer to adopt SPARQL instead of 
> Jena Rules.  This will not only assure W3C standards compliance across 
> applications, but assures continued maintenance well into the future, 
> compatibility with SPIN technologies, etc. 
>
> SWRL is different than SPARQL or Jena rules as it has ties to RDFS and 
> OWL logic (SWRL efforts have migrated to RIF BLD).   For other 
> discussion on SWRL, see the following links: 
>   - 
> http://groups.google.com/group/topbraid-users/browse_thread/thread/7c57fe855de8c908/d131937a1277d9ea?lnk=gst&q=rif#d131937a1277d9ea
>  
>  - 
> http://groups.google.com/group/topbraid-users/browse_thread/thread/7c57fe855de8c908/d131937a1277d9ea?lnk=gst&q=rif#d131937a1277d9ea
>  
>  - 
> http://www.google.com/url?sa=D&q=http://www.semanticoverflow.com/questions/3152/latest-best-support-for-swrl
>  
>
> -- Scott 
>
> On Mar 31, 4:36 am, aziza <[email protected]> wrote: 
> > Hey, can anybody tell what is a rule expressiveness in general? 
> > And also how Jena Rules expressiveness differ from SWRL's and SPIN's 
> > one? 
> > Thanks in advance ,Aziza

-- 
You received this message because you are subscribed to the Google Groups 
"TopBraid Suite Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
For more options, visit https://groups.google.com/d/optout.

Reply via email to