- From: Michael Brunnbauer <brunni@netestate.de>
- Date: Mon, 21 Sep 2015 13:45:18 +0200
- To: kontokostas@informatik.uni-leipzig.de
- Cc: public-lod@w3.org
- Message-ID: <20150921114518.GA7432@netestate.de>
Hello Dimitris, there are 4 download links for YAGO related information on the download page: YAGO links YAGO type links YAGO types YAGO type hierarchy Yet no file - including the DBpedia ontology - seems to contain labels for the YAGO types and other classes used within DBpedia. They are also missing when dereferencing the URIs: http://dbpedia.org/class/yago/ComposersForLute The 3.8 release still had them. I cannot use type information without at least a label for the class. So it would be nice to have labels and comments/abstracts even for external classes. Regards, Michael Brunnbauer On Thu, Sep 03, 2015 at 05:21:10PM +0300, Dimitris Kontokostas wrote: > Dear all, > > > we are happy to announce the release of DBpedia 2015-04 (also known as: > 2015 A). The new release is based on updated Wikipedia dumps dating from > February/March 2015 and features an enlarged DBpedia ontology with more > infobox to ontology mappings, leading to richer and cleaner data. > > > http://wiki.dbpedia.org/Downloads2015-04 > > > The English version of the DBpedia knowledge base currently describes 5.9M > things out of which 4.3M resources have abstracts, 452K geo coordinates and > 1.45M depictions. In total, 4 million resources are classified in a > consistent ontology and consists of 2,06M persons, 682K places (including > 455K populated places), 376K creative works (including 92K music albums, > 90K films and 17K video games), 188K organizations (including 51K companies > and 33K educational institutions), 278K species and 5K diseases. The total > number of resources in English DBpedia is 15.3M that, besides the 5.9M > resources, includes 1.2M skos concepts (categories), 6.83M redirect pages, 256K > disambiguation pages and 1.13M intermediate nodes. > > > We provide localized versions of DBpedia in 128 languages. All these > versions together describe 38.3 million things, out of which 23.8 million > are localized descriptions of things that also exist in the English version > of DBpedia. The full DBpedia data set features 38 million labels and > abstracts in 128 different languages, 25.2 million links to images and 29.8 > million links to external web pages; 80.9 million links to Wikipedia > categories, and 41.2 million links to YAGO categories. DBpedia is connected > with other Linked Datasets by around 50 million RDF links. > > > In addition we provide DBpedia datasets for Wikimedia Commons and Wikidata > <http://downloads.dbpedia.org/2015-04/ext/>. > > > Altogether the DBpedia 2015-04 release consists of 6.9 billion pieces of > information (RDF triples) out of which 737 million were extracted from the > English edition of Wikipedia, 3.76 billion were extracted from other > language editions and 2.4 billion from DBpedia Commons and Wikidata. > > > Thorough statistics can be found on the DBpedia website > <http://wiki.dbpedia.org/services-resources/datasets/dataset-2015-04/dataset-2015-04-statistics> > and general information on the DBpedia datasets here > <http://wiki.dbpedia.org/services-resources/datasets/dbpedia-datasets>. > > > >From this release on we will try to provide two releases per year, one in > April and the next in October. The 2015-04 release was delayed by 3 months > but we will try to keep the schedule and release the 2015-10 at the end of > October or early November. > > > On our plans for the next release is to remove the URI encoding of English > DBpedia (dbpedia.org) and switch to IRIs only. This will simplify the > release process and will be aligned with all other DBpedia language > datasets. We know that this will probably break some links to DBpedia but > we feel is the only way to move forward. If you have any reasons against > this action, please let us know now. > > > A complete list of changes in this release can be found on GitHub > <https://github.com/dbpedia/extraction-framework/issues?q=milestone%3A2015-04+is%3Aclosed> > . > > > >From this release we adjusted the download page folder structure, giving us > more flexibility to offer more datasets in the near future > > http://downloads.dbpedia.org/2015-04/ > > > Enlarged Ontology > > The DBpedia community added new classes and properties to the DBpedia > ontology via the mappings wiki. The DBpedia 2015 ontology encompasses > > - > > 735 classes (DBpedia 2014: 685) > - > > 1,098 object properties (DBpedia 2014: 1079) > - > > 1,583 datatype properties (DBpedia 2014: 1,600) > - > > 132 specialized datatype properties (DBpedia 2014: 116) > - > > 408 owl:equivalentClass and 200 owl:equivalentProperty mappings external > vocabularies > > > Additional Infobox to Ontology Mappings > > The editors community of the mappings wiki also defined many new mappings > from Wikipedia templates to DBpedia classes. There are six new languages > with mappings: Arabic, Bulgarian, Armenian, Romanian, Swedish and Ukrainian. > > For the DBpedia 2015 extraction, we used a total of 4317 template mappings > (DBpedia 2014: 3814 mappings). > > > Extended Type System to cover Articles without Infobox > > Until the DBpedia 3.8 release, a concept was only assigned a type (like > person or place) if the corresponding Wikipedia article contains an infobox > indicating this type. Starting from the 3.9 release, we provide type > statements for articles without infobox that are inferred based on the link > structure within the DBpedia knowledge base using the algorithm described > in Paulheim/Bizer 2014 > <http://www.heikopaulheim.com/documents/ijswis_2014.pdf>. For the new > release, an improved version of the algorithm was run to produce type > information for 400,000 things that were formerly not typed. A similar > algorithm (presented in the same paper) was used to identify and remove > potentially wrong statements from the knowledge base. > > In addition, this release include four new type datasets, although not > included in the online sparql endpoint: 1) LHD datasets > <http://ner.vse.cz/datasets/linkedhypernyms/> for English, German and Dutch > and 2) DBTax > <http://it.dbpedia.org/2015/02/dbpedia-italiana-release-3-4-wikidata-e-dbtax/> > for English. > > Both of these datasets use a typing system beyond the DBpedia ontology and > we provide a subset, mapped to the DBpedia ontology (dbo) and a full one > with all types (ext). > > > New and updated RDF Links into External Data Sources > > We updated the following RDF link sets pointing at other Linked Data > sources: Freebase, Wikidata, Geonames and GADM. > > > Accessing the DBpedia 2015-04 Release > > You can download the new DBpedia datasets in RDF format from > http://wiki.dbpedia.org/Downloads or > > http://downloads.dbpedia.org/2015-04/ > > > Additional external dataset contributions > > >From the following releases we will provide additional datasets related to > DBpedia. For 2015-04 we provide a pagerank dataset for English and German, > provided by HPI. > > http://downloads.dbpedia.org/2015-04/ext/ > > > As usual, the new dataset is also published in 5-Star Linked Open Data form > and accessible via the SPARQL Query Service endpoint at > http://dbpedia.org/sparql and Triple Pattern Fragments service at > http://fragments.dbpedia.org/. > Credits > > Lots of thanks to > > - > > Markus Freudenberg (University of Leipzig) for taking over the whole > release process > - > > Volha Bryl and Daniel Fleischhacker (University of Mannheim) for their > work on the previous release and their continuous support in this release. > - > > Alexandru Todor (University of Berlin) for contributing time and > computing resources for the abstract extraction. > - > > All editors that contributed to the DBpedia ontology mappings via the > Mappings Wiki. > - > > The whole DBpedia Internationalization Committee for pushing the DBpedia > internationalization forward. > - > > Heiko Paulheim (University of Mannheim) for re-running his algorithm to > generate additional type statements for formerly untyped resources and > identify and removed wrong statements. > - > > Václav Zeman and the whole LHD team (University of Prague) for their > contribution of additional DBpedia types > - > > Marco Fossati (FBK) for contributing the DBTax types > - > > Petar Ristoski (University of Mannheim) for generating the updated links > pointing at the GADM database of Global Administrative Areas. Petar will > also generate an updated release of DBpedia as Tables soon. > - > > Aldo Gangemi (LIPN University, France & ISTC-CNR, Italy) for providing > the links from DOLCE to DBpedia ontology. > - > > Kingsley Idehen, Patrick van Kleef, and Mitko Iliev (all OpenLink > Software) for loading the new data set into the Virtuoso instance that > provides 5-Star Linked Open Data publication and SPARQL Query Services. > - > > OpenLink Software (http://www.openlinksw.com/) altogether for providing > the SPARQL Query Services and Linked Open Data publishing infrastructure > for DBpedia in addition to their continuous infrastructure support. > - > > Ruben Verborgh from Ghent University ??? iMinds for publishing the dataset > as Triple Pattern Fragments <http://fragments.dbpedia.org>, and iMinds > for sponsoring DBpedia???s Triple Pattern Fragments server. > - > > Magnus Knuth (HPI) for providing a pagerank dataset for English and > German > - > > Ali Ismayilov (University of Bonn) for implementing DBpedia Wikidata > dataset. > - > > Vladimir Alexiev (Ontotext) for leading a successful mapping and > ontology clean up effort. > - > > Nono314 > <https://github.com/dbpedia/extraction-framework/pulls?utf8=%E2%9C%93&q=is%3Apr+author%3ANono314> > for contributing a lot of improvements and bug fixes in the extraction > framework as well as other community members > <https://github.com/dbpedia/extraction-framework/graphs/contributors?from=2014-09-01&to=2015-07-16&type=c> > . > - > > All the GSoC students and mentors working directly or indirectly on the > DBpedia release > > > The work on the DBpedia 2015-04 release was financially supported by the > European Commission through the project ALIGNED ??? quality-centric, software > and data engineering (http://aligned-project.eu/). > > More information about DBpedia is found at http://dbpedia.org as well as in > the new overview article about the project available at > http://wiki.dbpedia.org/Publications. > > Have fun with the new DBpedia 2015-04 release! > > > Cheers, > > Markus Freudenberg, Dimitris Kontokostas, Sebastian Hellmann -- ++ Michael Brunnbauer ++ netEstate GmbH ++ Geisenhausener Straße 11a ++ 81379 München ++ Tel +49 89 32 19 77 80 ++ Fax +49 89 32 19 77 89 ++ E-Mail brunni@netestate.de ++ http://www.netestate.de/ ++ ++ Sitz: München, HRB Nr.142452 (Handelsregister B München) ++ USt-IdNr. 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Received on Monday, 21 September 2015 11:45:44 UTC