RE: NeuronDB RDF and OWL

It depends on how you define soundness and completeness...

In this context, the "algorithm" is our query processing/data integration
approach.
The difference is that it is contextualized to the Integrated DB/KB.

i.e. Our "algorithm" is sound/complete if for all queries Q posed on the
integrated KB it returns all and only correct answers...

Whether we "lied" to the KB is immaterial. As long as a fact is asserted as true
in our KB, it is deemed as true even if we lied...

Makes sense?

---Vipul

> -----Original Message-----
> From: Alan Ruttenberg [mailto:alanruttenberg@gmail.com]
> Sent: Thursday, March 15, 2007 11:49 AM
> To: Kashyap, Vipul
> Cc: public-semweb-lifesci hcls
> Subject: Re: NeuronDB RDF and OWL
> 
> Soundness isn't the same, because we can lie (tell wrong facts) to
> the reasoner, which will (soundly) repeat back the lies.
> That's the sort of thing that happens when we use is_a instead of
> part_of in our ontologies.
> 
> -Alan
> 
> On Mar 15, 2007, at 11:38 AM, Kashyap, Vipul wrote:
> 
> >
> >> Just to clarify, because "sound and complete" is often used in a
> >> different sense: I don't mean sound and complete in the sense it is
> >> used in describing the properties of reasoning algorithms. I meant
> >> this
> >> statement with respect to the quality of answers to questions asked
> >> within our domain of interest: Biology/Life Sciences.  The former
> >> only
> >> depends on the algorithm. The latter depends on what's in our KB, and
> >> how we ask the questions.
> >
> > [VK] I guess soundness is still the same, don't want "wrong"
> > answers to be
> > returned in any case. But completeness would be based on the what's
> > there in the
> > virtual integrated DB/KB.
> >
> > Cheers,
> >
> > ---Vipul
> >
> >
> >
> >
> >
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Received on Friday, 16 March 2007 02:23:39 UTC