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Re: Sparql Question -- re D2R Server publishing the DBLP Bibliography

From: Adrian Walker <adriandwalker@gmail.com>
Date: Sat, 11 Nov 2006 15:26:36 -0500
Message-ID: <1e89d6a40611111226w699fd4bbid86d92130ad8e362@mail.gmail.com>
To: "Richard Cyganiak" <richard@cyganiak.de>
Cc: semantic-web@w3.org, semantic_web@googlegroups.com
Hi Richard --

Actually, the question is a more general one about closed world negation,
universal quantifiers, and sparql.

So, how would you express in sparql Q1 and Q2 generalized by dropping the
author affiliation "fu-berlin" part?

Thanks,   -- Adrian

Internet Business Logic (R)
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Online at www.reengineeringllc.com
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Adrian Walker
Reengineering
Phone: USA 860 830 2085



On 11/11/06, Richard Cyganiak <richard@cyganiak.de> wrote:
>
>
> On 11 Nov 2006, at 20:00, Richard Newman wrote:
> >> So I'm wondering please whether it is possible to write in sparql
> >> queries equivalent to
> >>
> >>      Q1  show me the name of a person who is missing from the list
> >> of authors of a publication from fu-berlin
> >>
> >>      Q2  show me the names of people who are on the list of
> >> authors of every publication from fu-berlin
> >>
> >> Thanks for your thoughts about this, in particular, actual sparql
> >> queries.
> >>
> >>                                                                --
> >> Adrian
> >>
> >
> > I'll allow Chris to provide some real queries, as I'm unfamiliar
> > with the details of the ontology.
>
> Unfortunately the original DBLP dataset does not contain author
> affiliations. Therefore we can't answer this kind of query.
>
> Richard
>
>
>
> >
> > -R
> >
> >
>
>
Received on Saturday, 11 November 2006 20:26:41 GMT

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