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Re: Finding SPAQL endpoints?

From: Michael Lang(Jr.) <michaelallenlang@gmail.com>
Date: Fri, 6 Mar 2009 17:54:44 -0500
Message-ID: <59c1f5620903061454se31700bg864ce45d7838df08@mail.gmail.com>
To: Daniel Schwabe <dschwabe@inf.puc-rio.br>
Cc: public-lod@w3.org, Dad <michaelalang@gmail.com>, Greg Milbank <gregmilbank@revelytix.com>, Mike Lofquist <mlofquist@revelytix.com>
Daniel/LOD Community,
I've seen this as a problem myself, not only finding SPARQL endpoints for
datasets, but finding relevant datasets to begin with.  I had the idea to
create a Community within Knoodl <http://www.knoodl.com/ui/home.html> that
could serve as a sort of semantic dataset registry.  The idea is that
dataset owners can create instances of void:Dataset which represent their
dataset and then describe them (using OWL) in sufficient detail that they
could be discovered and then found on the web.

I started a Community in Knoodl called
Dataset_Registry.<http://www.knoodl.com/ui/groups/Dataset_Registry> So
far, all I have done is import the VoID ontology.  I have not created any
instances of Datasets, but I have set the permissions of the Community so
that any registered user can edit any content, including creating their own
instances. I am sure that I could take this idea quite a bit further if
people begin to use the Community.

If anyone is interested in this idea, please let me know.

Mike Lang
Revelytix, Inc.

phone: 410-584-0009 (office)
          443-928-3782 (cell)
skype: michael.allen.lang.jr
aim: MikeJrRevelytix

On Fri, Mar 6, 2009 at 3:59 PM, Daniel Schwabe <dschwabe@inf.puc-rio.br>wrote:

>  All,
> Pardon my ignorance, but I could not find an easy way to find the actual
> URL of a sparql endpoint, given the URL of the dataset... I tried querying
> Sindice over voID descriptions, but it didn't work (or maybe I'm making the
> wrong query). In any case, it is not guaranteed that all datasets will have
> a voiD description, even if desirable.
> Perhaps a simple convention could be adopted by all repositories to use a
> "standard" url format, such as <url>/sparql, (e.g.,
> http://www.dbpedia.org/sparql), as is being done by many already...
> This could provide a simple automatable way to discover endpoints. I don't
> mean this as a substitute for voiD, but as an inexpensive additional
> alternative...
> Cheers
> D
> --
>   Daniel Schwabe
> Tel:+55-21-3527 1500 r. 4356
> Fax: +55-21-3527 1530
> http://www.inf.puc-rio.br/~dschwabe Dept. de Informatica, PUC-Rio
> R. M. de S. Vicente, 225
> Rio de Janeiro, RJ 22453-900, Brasil
Received on Friday, 6 March 2009 22:55:20 UTC

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