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DBpedia Overview - Sebastian Hellmann
http://dbpedia.org
Overview
● DBpedia is …
● DBpedia Association
○ Organisational Structure
○ Technical Issues
○ Funding + Goals
DBpedia is ...
DBpedia is a crowd-sourced community effort
to extract structured information from
Wikipedia and Wikidata
The DBpedia Comm...
DBpedia is … vital
DBpedia is … a public service and infrastructure
Main SPARQL Endpoint for querying with 99.3% uptime
source: http://sparql...
DBpedia Association
● Organisational Structure
● Technical Issues
● Funding + Goals
DBpedia Association (non-profit)
● founded in 2014
● operational since January 2016
Furthermore:
● Markus Freudenberg, Rob...
DBpedia Association (non-profit)
DBpedia Charter
● Public draft online: http://wiki.dbpedia.org/dbpedia-association
All data published by the DBpedia Assoc...
DBpedia Groups
Ontology Working Group
Communications Group - Facebook, Slack Discussion about communication channels
Inter...
DBpedia Association
● Organisational Structure
● Technical Issues
● Funding + Goals
Backlinking
https://github.com/dbpedia/links
- DBpedians can push their links to be loaded into the main endpoint
- (not y...
Wikidata
- Great source for DBpedia
- Mission is different from DBpedia (Collect core facts)
- Limited to notability
Integ...
Integration of sources
Two ways:
1. fully automated
a. automatic conversion
b. automatic error detection
2. highly-assiste...
DBpedia Association
● Organisational Structure
● Technical Issues
● Funding + Goals
DBpedia is ...
99.3 % uptime
25 TB downloadable data
one DBpedia Ontology
decent linkage
decent data quality
Identifiers based on
Wikiped...
Funding
● current liquidity is around 10,000€
● some pre-financing via H2020 and German national funding
Services are stab...
Funding
Become a member, if …
● you profit from DBpedia in any way
● you wish to get more in touch with DBpedia
● the serv...
Future Events
SEMANTiCS 2016 - The Linked Data Conference
Submission open: Industry talks / scientific paper
Sep 12-15 in ...
Hope to see you in Leipzig
More information: http://dbpedia.org
Sign up: http://dbpedia.org/membership
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DBpedia/association Introduction The Hague 12.2.2016

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What is DBpedia?
What is the DBpedia Association?

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DBpedia/association Introduction The Hague 12.2.2016

  1. 1. Have you backlinked your data yet? DBpedia Overview - Sebastian Hellmann http://dbpedia.org
  2. 2. Overview ● DBpedia is … ● DBpedia Association ○ Organisational Structure ○ Technical Issues ○ Funding + Goals
  3. 3. DBpedia is ...
  4. 4. DBpedia is a crowd-sourced community effort to extract structured information from Wikipedia and Wikidata The DBpedia Community enriches the extracted information with additional taxonomies Links: inbound / outbound / text Data submission by DBpedians DBpedia is … a fused, multi-domain, multilingual dataset Ontology
  5. 5. DBpedia is … vital
  6. 6. DBpedia is … a public service and infrastructure Main SPARQL Endpoint for querying with 99.3% uptime source: http://sparqles.ai.wu.ac.at/endpoint?uri=http%3A%2F%2Fdbpedia.org%2Fsparql Over 20 Language Chapter that volunteered to do ● local extraction and merging ● community building and linking ● hosting of local DBpedias and Spotlight http://nl.dbpedia.org http://nl.dbpedia. org/resource/Den_Haag
  7. 7. DBpedia Association ● Organisational Structure ● Technical Issues ● Funding + Goals
  8. 8. DBpedia Association (non-profit) ● founded in 2014 ● operational since January 2016 Furthermore: ● Markus Freudenberg, Robert Roessling, Jan Forberg ● Backed by AKSW research group and InfAI (over 50 dead-beat Linked Data experts)
  9. 9. DBpedia Association (non-profit)
  10. 10. DBpedia Charter ● Public draft online: http://wiki.dbpedia.org/dbpedia-association All data published by the DBpedia Association should be made available free of charge under a license equivalent to CC-0 or CC-BY without further restriction on commercial use and redistribution.
  11. 11. DBpedia Groups Ontology Working Group Communications Group - Facebook, Slack Discussion about communication channels Internationalisation Group DataID (planned) Wikidata Group, Law? - Ideas for groups? Association will help set up the group
  12. 12. DBpedia Association ● Organisational Structure ● Technical Issues ● Funding + Goals
  13. 13. Backlinking https://github.com/dbpedia/links - DBpedians can push their links to be loaded into the main endpoint - (not yet published) Maven/Ant build system that updates, validates and packages links Please wait for the announcement and send a GitHub pull request (Members can get help from the association for linking and submitting)
  14. 14. Wikidata - Great source for DBpedia - Mission is different from DBpedia (Collect core facts) - Limited to notability Integration, Enrichment Quality Control Increased Usefulness
  15. 15. Integration of sources Two ways: 1. fully automated a. automatic conversion b. automatic error detection 2. highly-assisted workflows a. semi-automatic suggestions b. test-driven error detection of data errors c. power tools d. push to source Mappings automation, validation & provenance
  16. 16. DBpedia Association ● Organisational Structure ● Technical Issues ● Funding + Goals
  17. 17. DBpedia is ...
  18. 18. 99.3 % uptime 25 TB downloadable data one DBpedia Ontology decent linkage decent data quality Identifiers based on Wikipedia/Wikidata DBpedia Spotlight DBpedia is … a very ambitious project ⇒ 99.99% uptime for all languages and chapters and spotlight, scalable hosting via the cloud ⇒ 500 TB ⇒ many consistent domain sub-ontologies for each domain from cars to gas turbines to amoeba to star systems to literature ⇒ highly inter- and backlinked, DBpedia can serve as an entry point to find exactly the data (or knowledge) you need ⇒ improved testing and quality control ⇒ Identifiers based on all existing authoritative and robust identifier providers… starting with company data ⇒ all languages, all domains, improved scalability
  19. 19. Funding ● current liquidity is around 10,000€ ● some pre-financing via H2020 and German national funding Services are stable, but lot’s of “what if’s” ● what if OpenLink stops hosting the main endpoint ● what opportunities do we miss without a properly oiled flagship We need organisations to join and provide financial support, links and backlinks and data.
  20. 20. Funding Become a member, if … ● you profit from DBpedia in any way ● you wish to get more in touch with DBpedia ● the services mentioned on the flyer seem useful for your organisation Include DBpedia in your proposals: ● deliverables ● subcontracting ● consortium member (either association or the national chapters)
  21. 21. Future Events SEMANTiCS 2016 - The Linked Data Conference Submission open: Industry talks / scientific paper Sep 12-15 in Leipzig - http://semantics.cc ● Huge DBpedia meeting on 15th of September
  22. 22. Hope to see you in Leipzig More information: http://dbpedia.org Sign up: http://dbpedia.org/membership

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