W3C home > Mailing lists > Public > semantic-web@w3.org > June 2011

Re: Official DBpedia Live Release

From: Tom Heath <tom.heath@talis.com>
Date: Fri, 24 Jun 2011 13:45:01 +0100
Message-ID: <BANLkTikvJbdT1DSzzCMf5U-JKTehrqM0jA@mail.gmail.com>
To: Jens Lehmann <lehmann@informatik.uni-leipzig.de>
Cc: dbpedia-announcements@lists.sourceforge.net, public-lod@w3.org, lod2@lists.okfn.org, dbpedia-discussion@lists.sourceforge.net, Semantic Web <semantic-web@w3.org>
Nice :)

Quick question: on the basis of point 6, will resources in the main
http://dbpedia.org/ namespace soon reflect the latest changes from
DBpedia Live? Presumably at this point the separate live.dbpedia
SPARQL endpoint would become redundant?

Also, and not wanting to poor petrol on the flames of any current
debates, but, the links at [1] under "20 Most Recently Updated
Entities" point to the dbpedia /page/ URIs, not the /resource/ URIs.
I'm guessing this isn't the intended behaviour ;)

Tom.

[1] http://live.dbpedia.org:8080/LiveStats/



On 24 June 2011 12:23, Jens Lehmann <lehmann@informatik.uni-leipzig.de> wrote:
>
> Dear all,
>
> the AKSW [1] group is pleased to announce the official release of
> DBpedia Live [2]. The main objective of DBpedia is to extract structured
> information from Wikipedia, convert it into RDF, and make it freely
> available on the Web. In a nutshell, DBpedia is the Semantic Web mirror
> of Wikipedia.
>
> Wikipedia users constantly revise Wikipedia articles with updates
> happening almost each second. Hence, data stored in the official DBpedia
> endpoint can quickly become outdated, and Wikipedia articles need to be
> re-extracted. DBpedia Live enables such a continuous synchronization
> between DBpedia and Wikipedia.
>
> The DBpedia Live framework has the following new features:
>
>   1. Migration from the previous PHP framework to the new Java/Scala
>      DBpedia framework.
>   2. Support of clean abstract extraction.
>   3. Automatic reprocessing of all pages affected by a schema mapping
>      change at http://mappings.dbpedia.org.
>   4. Automatic reprocessing of pages that are not changed for more
>      than one month. The main objective of that feature is to that any
>      change in the DBpedia framework, e.g. addition/change of an
>      extractor, will eventually affect all extracted resources. It
>      also serves as fallback for technical problems in Wikipedia or
>      the update stream.
>   5. Publication of all changesets.
>   6. Provision of a tool to enable other DBpedia mirrors to be in
>      synchronization with our DBpedia Live endpoint. The tool
>      continuously downloads changesets and performs changes in a
>      specified triple store accordingly.
>
> Important Links:
>
> * SPARQL-endpoint: http://live.dbpedia.org/sparql
> * DBpedia-Live Statistics: http://live.dbpedia.org/livestats
> * Changesets: http://live.dbpedia.org/liveupdates
> * Sourcecode:
> http://dbpedia.hg.sourceforge.net/hgweb/dbpedia/extraction_framework
> * Synchronization Tool: http://sourceforge.net/projects/dbpintegrator/files/
>
> Thanks a lot to Mohamed Morsey, who implemented this version of DBpedia
> Live as well as to Sebastian Hellmann and Claus Stadler who worked on
> its predecessor. We also thank our partners at the FU Berlin and
> OpenLink as well as the LOD2 project [3] for their support.
>
> Kind regards,
>
> Jens
>
> [1] http://aksw.org
> [2] http://live.dbpedia.org
> [3] http://lod2.eu
>
> --
> Dr. Jens Lehmann
> AKSW/MOLE Group, Department of Computer Science, University of Leipzig
> Homepage: http://www.jens-lehmann.org
> GPG Key: http://jens-lehmann.org/jens_lehmann.asc
>
>



-- 
Dr Tom Heath
Lead Researcher
Talis Systems Ltd
W: http://www.talis.com/
W: http://tomheath.com/id/me

Talis Systems Ltd is a company registered in England and Wales.
Registered number: 07196440. Registered office: 43 Temple Row,
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Received on Friday, 24 June 2011 12:45:37 UTC

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