- From: Kingsley Idehen <kidehen@openlinksw.com>
- Date: Mon, 17 Nov 2008 11:47:42 -0500
- To: John Muth <John.Muth@bbc.co.uk>
- CC: public-lod@w3.org, 'Semantic Web' <semantic-web@w3.org>, dbpedia-discussion@lists.sourceforge.net, dbpedia-announcements@lists.sourceforge.net
John Muth wrote: > Congrats all, and big thanks for your continuing great work. > > The YAGO Classes and YAGO Links links are not working for me just now -- are > the URLs wrong or are the files yet to be published? > > http://downloads.dbpedia.org/3.2/links/yago_en.nt.bz2 > http://downloads.dbpedia.org/3.2/links/yagolink_en.nt.bz2 > > Thanks again, > John Muth > John, Hmm.. Will have look and get it sorted if it's actually missing. Kingsley > On 17/11/08 12:11, "Chris Bizer" <chris@bizer.de> wrote: > > >> 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 >> >> >> >> ------------------------------------------------------------------------- >> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >> Build the coolest Linux based applications with Moblin SDK & win great prizes >> Grand prize is a trip for two to an Open Source event anywhere in the world >> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> Dbpedia-discussion mailing list >> Dbpedia-discussion@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion >> > > > http://www.bbc.co.uk/ > This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. > If you have received it in error, please delete it from your system. > Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. > Please note that the BBC monitors e-mails sent or received. > Further communication will signify your consent to this. > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Dbpedia-discussion mailing list > Dbpedia-discussion@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion > > -- Regards, Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen President & CEO OpenLink Software Web: http://www.openlinksw.com
Received on Monday, 17 November 2008 16:48:18 UTC