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evolution of linked data - examples, ongoing projects and many links
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Mag. Andreas BlumauerSemantic Web Company
The Semantic Puzzle Linked Data, Open Data, Web of Data, Web 3.0 & Semantic Web - how things fit together
„Third“ Meetup, November 30, 2009
„3rd Vienna Semantic Web Meetup“
© Semantic Web Company – http://www.semantic-web.at/ 2
•18.00 - 18.30 Come together
•18.30 - 19.00 Opening Talk: The Semantic Puzzle (Andreas Blumauer, Semantic Web Company)
•19.00 - 19.20 Semantic Web based E-Commerce: GoodRelations & Co. (Bernd Gruber, Smart Information Systems)
•19.20 - 19.40 Applied Semantic Web – What we did on the Semantic Desktop (Leo Sauermann, Gnowsis)
•19.40 - 20.00 Lightning Talks: Your contribution (Max. 5 Minutes each)
•20.00 - 22.30 Drinks & Food - Networking
© Semantic Web Company – http://www.semantic-web.at/ 3
Agenda
1. The Semantic Puzzle
3. Let´s talk about money
4. What´s next? Conclusio.
2. Ongoing Initiatives & Projects
The Semantic Puzzle
© Semantic Web Company – http://www.semantic-web.at/ 4
prefLabel: Open Data- data freely available to everyone- no mechanisms of controlnarrower: Open Metadata
prefLabel: Semantic Web- integration and combination of data- interoperability frameworkaltLabel: Web of Data
prefLabel: Linked Data- data integration technologies
based on RDF- lower costs for integration efforts
narrower: Linked Open Data
hiddenLabel: Web 3.0- attract Web 2.0 people
- attract yellow pressprefLabel: Future Internet
Some (recent) Open Data Initiatives
• Making Public Data Public (UK): More access to Ordnance Survey maps from next year, http://bit.ly/3qTU9s
• Open Data Network (GER): Founded in October 2009, Berlin, http://opendata-network.org/
• data.gov (US): increase public access to high value, machine readable datasets, http://www.data.gov/ data.gov.uk
• Open Data Commons: set of legal ‘tools’ to help provide and use open data: http://www.opendatacommons.org/
© Semantic Web Company – http://www.semantic-web.at/ 5
Some (new) Linked Open Data Initiatives
• Linked Data Research Center: appointed to drive and lead the linked data research and development, http://linkeddata.deri.ie/
• data.nytimes.com: 5,000 people subject headings as linked open data under a CC BY license, http://data.nytimes.com/
• GoodRelations: standardized vocabulary for product, price, and company data, http://purl.org/goodrelations/
• oeGOV: Use small OWL ontologies to model recovery and deploy across all government, http://www.oegov.org/
© Semantic Web Company – http://www.semantic-web.at/ 6
data.nytimes.com
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Mash-ups with Linked Data
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http://sig.ma/
From Open Data to Linked Data
heavily inspired by Leigh Dodds, Talishttp://www.slideshare.net/ldodds/web-integrated-data
© Semantic Web Company – http://www.semantic-web.at/ 9
Publish Data!
Organize it!
License it!
Use Standard Open Formats
Add a Web API!
Integrate with the Web
Identify things!
Link them together!
Use RDF to publish data & model!
Raw Data now!
Linked Data Design Issues
1. Use URIs as names for things 2. Use HTTP URIs so that
people can look up those names.
3. When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL)
4. Include links to other URIs so that they can discover more things.
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Linked Data =/= Linked Open Data
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http://bit.ly/21LmMA
LOD Cloud: License Survey
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by Leigh Dodds, Talis
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Technologies: Stable!
triplify, D2R
Sindice,Entity Searchby OpenLink
sameAs
LargeTripleStores
Calais etc.
LDCamp*
*not a „technology“ in a classical meaning
sig.ma, BBC Music etc.
Virtuoso Sponger etc.
partly solved,eg.: KiWi
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An example: BBC Music beta
http://www.bbc.co.uk/music/
Linked Data Value Chain
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by Latif et al., TU Graz
Barriers before we solvethe Semantic Puzzle
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Business Models &
Use Cases
LicensingModels
Scalability
Privacy
Want to get inspiration?
Come to the SWC Demozone!
http://demozone.semantic-web.at/
© Semantic Web Company – http://www.semantic-web.at/ 17
© Semantic Web Company – http://www.semantic-web.at/ 18
Andreas BlumauerSemantic Web Company
Semantic Web Company GmbHLerchenfelder Gürtel 43A-1160 Wien
Tel. +43 1 402 12 [email protected]