DBpedia
Developer(s) | |
---|---|
Initial release | 10 January 2007 |
Stable release | DBpedia 2016-10
/ 4 July 2017 |
Repository | |
Written in | |
Type |
|
License | GNU General Public License |
Website | dbpedia |
DBpedia (from "DB" for "
The project was heralded as "one of the more famous pieces" of the decentralized
As of June 2021, DBPedia contained over 850 million triples.Background
The project was started by people at the
Wikipedia articles consist mostly of free text, but also include structured information embedded in the articles, such as "infobox" tables (the pull-out panels that appear in the top right of the default view of many Wikipedia articles, or at the start of the mobile versions), categorization information, images, geo-coordinates and links to external Web pages. This structured information is extracted and put in a uniform dataset which can be queried.
Dataset
The 2016-04 release of the DBpedia data set describes 6.0 million entities, out of which 5.2 million are classified in a consistent ontology, including 1.5 million persons, 810,000 places, 135,000 music albums, 106,000 films, 20,000 video games, 275,000 organizations, 301,000 species and 5,000 diseases.[8] DBpedia uses the Resource Description Framework (RDF) to represent extracted information and consists of 9.5 billion RDF triples, of which 1.3 billion were extracted from the English edition of Wikipedia and 5.0 billion from other language editions.[8]
From this data set, information spread across multiple pages can be extracted. For example, book authorship can be put together from pages about the work, or the author.[further explanation needed]
One of the challenges in extracting information from Wikipedia is that the same concepts can be expressed using different parameters in infobox and other templates, such as |birthplace=
and |placeofbirth=
. Because of this, queries about where people were born would have to search for both of these properties in order to get more complete results. As a result, the DBpedia Mapping Language has been developed to help in mapping these properties to an ontology while reducing the number of synonyms. Due to the large diversity of infoboxes and properties in use on Wikipedia, the process of developing and improving these mappings has been opened to public contributions.[9]
Version 2014 was released in September 2014.[10] A main change since previous versions was the way abstract texts were extracted. Specifically, running a local mirror of Wikipedia and retrieving rendered abstracts from it made extracted texts considerably cleaner. Also, a new data set extracted from Wikimedia Commons was introduced.
As of June 2021, DBPedia contains over 850 million triples.[11]
Examples
DBpedia extracts factual information from Wikipedia pages, allowing users to find answers to questions where the information is spread across multiple Wikipedia articles. Data is accessed using an SQL-like query language for RDF called SPARQL.
For example, if one were interested in the Japanese shōjo manga series Tokyo Mew Mew, and wanted to find the genres of other works written by its illustrator Mia Ikumi. DBpedia combines information from Wikipedia's entries on Tokyo Mew Mew, Mia Ikumi and on this author's works such as Super Doll Licca-chan and Koi Cupid. Since DBpedia normalises information into a single database, the following query can be asked without needing to know exactly which entry carries each fragment of information, and will list related genres:
PREFIX dbprop: <http://dbpedia.org/ontology/>
PREFIX db: <http://dbpedia.org/resource/>
SELECT ?who, ?WORK, ?genre WHERE {
db:Tokyo_Mew_Mew dbprop:author ?who .
?WORK dbprop:author ?who .
OPTIONAL { ?WORK dbprop:genre ?genre } .
}
Use cases
DBpedia has a broad scope of entities covering different areas of
Such a rich source of structured cross-domain knowledge is fertile ground for
Data about creators from DBpedia can be used for enriching artworks' sales observations.[24]
The crowdsourcing software company, Ushahidi, built a prototype of its software that leveraged DBpedia to perform semantic annotations on citizen-generated reports. The prototype incorporated the "YODIE" (Yet another Open Data Information Extraction system) service[25] developed by the University of Sheffield, which uses DBpedia to perform the annotations. The goal for Ushahidi was to improve the speed and facility with which incoming reports could be validated managed.[26]
DBpedia Spotlight
DBpedia Spotlight is a tool for annotating mentions of DBpedia resources in text. This allows linking unstructured information sources to the
DBpedia Spotlight is publicly available as a
Archivo ontology database
From 2020, the DBpedia project provides a regularly updated database of web‑accessible ontologies written in the OWL ontology language.[31] Archivo also provides a four star rating scheme for the ontologies it scrapes, based on accessibility, quality, and related fitness‑for‑use criteria. For instance, SHACL compliance for graph‑based data is evaluated when appropriate. Ontologies should also contain metadata about their characteristics and specify a public license describing their terms‑of‑use.[32][33] As of June 2021[update] the Archivo database contains 1368 entries.
History
DBpedia was initiated in 2007 by Sören Auer, Christian Bizer, Georgi Kobilarov,
See also
References
- ISSN 1570-8268. Archived from the original(PDF) on 10 August 2017. Retrieved 11 December 2015.
- ^ "About DBpedia". DBpedia. Retrieved 14 January 2024.
- ^ "Komplett verlinkt — Linked Data" (in German). 3sat. 19 June 2009. Archived from the original on 6 January 2013. Retrieved 10 November 2009.
- ^ "Sir Tim Berners-Lee Talks with Talis about the Semantic Web". Talis. 7 February 2008. Archived from the original on 10 May 2013.
- ^ a b c DBpedia: A Nucleus for a Web of Open Data, available at [1], [2], or [3]
- ^ "Credits". DBpedia. Archived from the original on 21 September 2014. Retrieved 9 September 2014.
- ^ "Home". March 2024.
- ^ a b "YEAH! We did it again ;) – New 2016-04 DBpedia release". DBpedia. 19 October 2016. Retrieved 9 January 2019.
- ^ "DBpedia Mappings". mappings.dbpedia.org. Retrieved 3 April 2010.
- ^ "Changelog". DBpedia. September 2014. Retrieved 9 September 2014.
- ^ Holze, Julia (23 July 2021). "Announcement: DBpedia Snapshot 2021-06 Release". DBpedia Association. Retrieved 28 July 2021.
- ^ E. Curry, A. Freitas, and S. O'Riáin, "The Role of Community-Driven Data Curation for Enterprises", Archived 23 January 2012 at the Wayback Machine in Linking Enterprise Data, D. Wood, Ed. Boston, MA: Springer US, 2010, pp. 25-47.
- ^ "Statistics on links between Data sets", SWEO Community Project: Linking Open Data on the Semantic Web, W3C, retrieved 24 November 2009
- ^ "Statistics on Data sets", SWEO Community Project: Linking Open Data on the Semantic Web, W3C, retrieved 24 November 2009
- ^ "Zemanta API". dev.zemanta.com. Retrieved 26 July 2021.
- ^ Sandhaus, Evan; Larson, Rob (29 October 2009). "First 5,000 Tags Released to the Linked Data Cloud". The New York Times Blogs. Retrieved 10 November 2009.
- ^
"Life in the Linked Data Cloud". opencalais.com. Archived from the original on 24 November 2009. Retrieved 10 November 2009.
Wikipedia has a Linked Data twin called DBpedia. DBpedia has the same structured information as Wikipedia – but translated into a machine-readable format.
- ^
"Zemanta talks Linked Data with SDK and commercial API". ZDNet. Archived from the original on 28 February 2010. Retrieved 10 November 2009.
Zemanta fully supports the Linking Open Data initiative. It is the first API that returns disambiguated entities linked to dbPedia, Freebase, MusicBrainz, and Semantic Crunchbase.
- ^ "European Semantic Web Conference 2009 - Georgi Kobilarov, Tom Scott, Yves Raimond, Silver Oliver, Chris Sizemore, Michael Smethurst, Christian Bizer and Robert Lee. Media meets Semantic Web - How the BBC uses DBpedia and Linked Data to make Connections". eswc2009.org. Archived from the original on 8 June 2009. Retrieved 10 November 2009.
- ^
"BBC Learning - Open Lab - Reference". BBC. Archived from the original on 25 August 2009. Retrieved 10 November 2009.
Dbpedia is a database version of Wikipedia. It is used in a lot of projects for a wide range of different reasons. At the BBC we are using it for tagging content.
- ^ "Semantic Tagging with Faviki". readwriteweb.com. Archived from the original on 29 January 2010.
- ^ David Ferrucci, Eric Brown, Jennifer Chu-Carroll, James Fan, David Gondek, Aditya A. Kalyanpur, Adam Lally, J. William Murdock, Eric Nyberg, John Prager, Nico Schlaefer, and Chris Welty "Building Watson: An Overview of the DeepQA Project." Archived 6 November 2020 at the Wayback Machine In AI Magazine Fall, 2010. Association for the Advancement of Artificial Intelligence (AAAI).
- ^ "Amazon Web Services Developer Community : DBpedia". developer.amazonwebservices.com. Archived from the original on 13 February 2010. Retrieved 10 November 2009.
- ISBN 978-3-319-26761-6.
- ^ "GATE.ac.uk - applications/yodie.html". gate.ac.uk. Retrieved 11 May 2020.
- ^ "ushahidi/platform-comrades". GitHub. 30 June 2019. Retrieved 9 March 2020.
- ^ Mendes, Pablo. "DBpedia Spotlight jQuery Plugin". jQuery Plugins. Archived from the original on 3 April 2011. Retrieved 15 September 2011.
- ^ DiCiuccio, Rob (25 September 2016). "PHP Client for DBpedia Spotlight". GitHub.
- ^ "Demo of DBpedia Spotlight". Retrieved 8 September 2013.
- ^ "Internationalization of DBpedia Spotlight". GitHub. Retrieved 8 September 2013.
- ^ "DBpedia Archivo". Retrieved 8 July 2021.
- ^
Frey, Johannes; Streitmatter, Denis; Götz, Fabian; Hellmann, Sebastian; Arndt, Natanael (27 October 2020). "DBpedia Archivo: a web-scale interface for ontology archiving under consumer-oriented aspects". In Sure-Vetter, York; Sack, Harald; Cudré-Mauroux, Philippe; Maleshkova, Maria; Pellegrini, Tassilo; Acosta, Maribel (eds.). Semantic systems: the power of AI and knowledge graphs. Cham, Switzerland: Springer. S2CID 219939266. Download as PDF or ePUB.
- ^ Frey, Johannes; Streitmatter, Denis; Götz, Fabian; Hellmann, Sebastian; Arndt, Natanael (10 September 2020). DBpedia Archivo: a web-scale interface for ontology archiving under consumer-oriented aspects. Leipzig, Germany: Institut für Angewandte Informatik (InfAI). Retrieved 8 July 2021. YouTube video 00:10:38.