RE: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

> Ontology is designed to put all things in their natural places, not to
> make mess of the real world;

Most people don't care about structure, they care about content.

DBpedia makes Wikipedia's implicit structure explicit in order to make
its content more accessible and (re)usable.

That's it.


--
Georgi Kobilarov
Freie Universität Berlin
www.georgikobilarov.com


> -----Original Message-----
> From: public-lod-request@w3.org [mailto:public-lod-request@w3.org] On
> Behalf Of Azamat
> Sent: Monday, November 17, 2008 8:38 PM
> To: 'SW-forum'
> Cc: public-lod@w3.org; dbpedia-discussion@lists.sourceforge.net;
> dbpedia-announcements@lists.sourceforge.net
> Subject: Re: DBpedia 3.2 release, including DBpedia Ontology and RDF
> links to Freebase
> 
> 
> Monday, November 17, 2008 2:11 PM, Chris Bizer wrote:
> 'We are happy to announce the release of DBpedia version 3.2. ... More
> information about the ontology is found at:
> http://wiki.dbpedia.org/Ontology'
> 
> While opening, we see the following types of Resource, seemingly
Entity
> or
> Thing:
> 
> Resource (Person, Ethnic group, Organization, Infrastructure, Planet,
> Work,
> Event, Means of Transportation, Anatomic structure, Olympic record,
> Language, Chemical compound, Species, Weapon, Protein, Disease,
Supreme
> Court of the US, Grape, Website, Music Genre, Currency, Beverage,
> Place).
> 
> I am of opinion to support the developers even when they misdirect.
But
> this
> 'classification' meant to be used for 'wikipedia's infobox-to-ontology
> mappings' is a complete disorder, having a chance for the URL
> http://wiki.dbpedia.org/Mess.
> Ontology is designed to put all things in their natural places, not to
> make
> mess of the real world; if you deal with chemical compound and
protein,
> it
> requests an arrangement like as protein < macromolecule < organic
> compound <
> chemical compound < matter, substance < physical entity < entity. The
> same
> with other things, however hard, rocky and trying it may be.
> 
> This test and trial proves again that any web ontology language
> projects,
> programming applications or semantic systems, are foredoomed without
> fundamental ontological schema.
> 
> azamat abdoullaev
> 
> ----- Original Message -----
> From: "Chris Bizer" <chris@bizer.de>
> To: <public-lod@w3.org>; "'Semantic Web'" <semantic-web@w3.org>;
> <dbpedia-discussion@lists.sourceforge.net>;
> <dbpedia-announcements@lists.sourceforge.net>
> Sent: Monday, November 17, 2008 2:11 PM
> Subject: ANN: DBpedia 3.2 release, including DBpedia Ontology and RDF
> links
> to Freebase
> 
> 
> 
> Hi all,
> 
> we are happy to announce the release of DBpedia version 3.2.
> 
> The new knowledge base has been extracted from the October 2008
> Wikipedia
> dumps. Compared to the last release, the new knowledge base provides
> three
> mayor improvements:
> 
> 
> 1. DBpedia Ontology
> 
> DBpedia now features a shallow, cross-domain ontology, which has been
> manually created based on the most commonly used infoboxes within
> Wikipedia.
> The ontology currently covers over 170 classes which form a
subsumption
> hierarchy and have 940 properties. The ontology is instanciated by a
> new
> infobox data extraction method which is based on hand-generated
> mappings of
> Wikipedia infoboxes to the DBpedia ontology. The mappings define
> fine-granular rules on how to parse infobox values. The mappings also
> adjust
> weaknesses in the Wikipedia infobox system, like having different
> infoboxes
> for the same class (currently 350 Wikipedia templates are mapped to
170
> ontology classes), using different property names for the same
property
> (currently 2350 Wikipedia template properties are mapped to 940
> ontology
> properties), and not having clearly defined datatypes for property
> values.
> Therefore, the instance data within the infobox ontology is much
> cleaner and
> better structured than the infobox data within the DBpedia infobox
> dataset
> that is generated using the old infobox extraction code. The DBpedia
> ontology currently contains about 882.000 instances.
> 
> More information about the ontology is found at:
> http://wiki.dbpedia.org/Ontology
> 
> 
> 2. RDF Links to Freebase
> 
> Freebase is an open-license database which provides data about million
> of
> things from various domains. Freebase has recently released an Linked
> Data
> interface to their content. As there is a big overlap between DBpedia
> and
> Freebase, we have added 2.4 million RDF links to DBpedia pointing at
> the
> corresponding things in Freebase. These links can be used to smush and
> fuse
> data about a thing from DBpedia and Freebase.
> 
> For more information about the Freebase links see:
> http://blog.dbpedia.org/2008/11/15/dbpedia-is-now-interlinked-with-
> freebase-
> links-to-opencyc-updated/
> 
> 
> 3. Cleaner Abstacts
> 
> Within the old DBpedia dataset it occurred that the abstracts for
> different
> languages contained Wikpedia markup and other strange characters. For
> the
> 3.2 release, we have improved DBpedia's abstract extraction code which
> results in much cleaner abstracts that can safely be displayed in user
> interfaces.
> 
> 
> The new DBpedia release can be downloaded from:
> 
> http://wiki.dbpedia.org/Downloads32
> 
> and is also available via the DBpedia SPARQL endpoint at
> 
> http://dbpedia.org/sparql
> 
> and via DBpedia's Linked Data interface. Example URIs:
> 
> http://dbpedia.org/resource/Berlin
> http://dbpedia.org/page/Oliver_Stone
> 
> More information about DBpedia in general is found at:
> 
> http://wiki.dbpedia.org/About
> 
> 
> Lots of thanks to everybody who contributed to the Dbpedia 3.2
release!
> 
> Especially:
> 
> 1. Georgi Kobilarov (Freie Universität Berlin) who designed and
> implemented
> the new infobox extraction framework.
> 2. Anja Jentsch (Freie Universität Berlin) who contributed to
> implementing
> the new extraction framework and wrote the infobox to ontology class
> mappings.
> 3. Paul Kreis (Freie Universität Berlin) who improved the datatype
> extraction code.
> 4. Andreas Schultz (Freie Universität Berlin) for generating the
> Freebase to
> DBpedia RDF links.
> 5. Everybody at OpenLink Software for hosting DBpedia on a Virtuoso
> server
> and for providing the statistics about the new Dbpedia knowledge base.
> 
> Have fun with the new DBpedia knowledge base!
> 
> Cheers
> 
> Chris
> 
> 
> --
> Prof. Dr. Christian Bizer
> Web-based Systems Group
> Freie Universität Berlin
> +49 30 838 55509
> http://www.bizer.de
> chris@bizer.de
> 
>

Received on Monday, 17 November 2008 23:42:13 UTC