Juan Sequeda wrote:
David,

That is something we were talking today at the BOF at WWW. "How can I find URI".
You want to lookup a an Entity URI from the LOD Cloud, right?

Do explore the service at: http://lod.openlinksw.com ? Take note of the 3 tabs on the home page.

Also note the VoiD graph at: http://lod.openlinksw.com/void/Dataset, meaning you can even start exploring the LOD cloud from the description of a dataset.
Hopefully tomorrow's session we will come up with interesting solutions. Currently, you need to know the URI (unfortunately).
No you don't. Take a look at "URI Lookup (by Label)" tab. Type in a literal pattern associated with an Entity who's URI you seek.
Same thing follows for the other problem. Right now, you need to know the datasets and what vocabularies to use.
See comment above.
Personally I envision a shift from a developer prespective. Instead of learning APIs, you learn the common vocabularies.
Yes, I am assuming Orri Erling made this crystal clear during his workshop talk. Otherwise, do try catching up with him if you can.

Kingsley

Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com <http://www.juansequeda.com>
www.semanticwebaustin.org <http://www.semanticwebaustin.org>


On Thu, Apr 23, 2009 at 1:07 AM, David Huynh <[email protected] <mailto:[email protected]>> wrote:

    Thanks for the link, Juan.

    Just curious, even if I know SPARQL, how do I (as a new user) know
    which properties and types there are in the data? And what URIs to
    use for what?

    David

    Juan Sequeda wrote:

        You may want to check out a tool that we are working on: SQUIN

        http://squin.informatik.hu-berlin.de/SQUIN/

        Juan Sequeda, Ph.D Student
        Dept. of Computer Sciences
        The University of Texas at Austin
        www.juansequeda.com <http://www.juansequeda.com>
        <http://www.juansequeda.com>
        www.semanticwebaustin.org <http://www.semanticwebaustin.org>
        <http://www.semanticwebaustin.org>



        On Wed, Apr 22, 2009 at 9:18 PM, David Huynh
        <[email protected] <mailto:[email protected]>
        <mailto:[email protected] <mailto:[email protected]>>>
        wrote:

           Hi all,

           Admittedly this is somewhat of a tease and shameless
           self-promotion :-) but I think there are a few interesting
           concepts in the query editor for Freebase that I've been
        working
           on that can be very useful for querying and consuming LOD
        data sets:

             http://www.freebase.com/app/queryeditor/about

           Or maybe I missed it totally--is there anything similar for
           writing SPARQL queries over LOD?

           Cheers,

           David








--


Regards,

Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO OpenLink Software Web: http://www.openlinksw.com





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