3/15/14 Visual Resources Association Milwaukee, WI
What, How, and Why of Linked Open Data
Trish Rose-Sandler
3/15/14 Visual Resources Association Milwaukee, WI
• Open Data refers to data or metadata that is made freely available to...
3/15/14 Visual Resources Association Milwaukee, WI
How to Open Data
• One click downloads
• OAI-PMH harvesting
• APIs
• Op...
3/15/14 Visual Resources Association Milwaukee, WI
How to Open Data
Copyright and Licensing
• License metadata so it can b...
3/15/14 Visual Resources Association Milwaukee, WI
How to Open Data
Copyright and Licensing
• If your content files
are no...
3/15/14 Visual Resources Association Milwaukee, WI
How to Open Data
Copyright and Licensing
If your content files are stil...
3/15/14 Visual Resources Association Milwaukee, WI
How to Open Data
Copyright and Licensing
PDDL
ODC-By
ODC-ODbL
Definitio...
3/15/14 Visual Resources Association Milwaukee, WI
How to Link Data
1. Use URIs as names for things
2. Use HTTP URIs so th...
3/15/14 Visual Resources Association Milwaukee, WI
How to Link Data
RDF Triples
<subject> <predicate> <object>
3/15/14 Visual Resources Association Milwaukee, WI
How to Link Data
Include links to other URIs. so that they can discover...
3/15/14 Visual Resources Association Milwaukee, WI
Benefits of LOD to your organization
• Increases discoverability and
pr...
3/15/14 Visual Resources Association Milwaukee, WI
Why is LOD important to cultural
heritage community?
“In line with inst...
3/15/14 Visual Resources Association Milwaukee, WI
Cultural heritage
LOD milestones
3/15/14 Visual Resources Association Milwaukee, WI
Credits
Title slides 1 & 2 - Linking Open Data cloud diagram, by Richar...
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What, How, and Why of Linked Open Data

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This was the introductory talk for a session called "Brave New World Cataloging: Using RDF and Linked Open Data for the Semantic Web" at the Visual Resources Association conference in March of 2014. The session description: RDF (Resource Description Format) and LOD (Linked Open Data) are two key components in the ongoing development of the Semantic Web (the structured linking of web-based information to enable users anywhere to find, share, and combine information more easily). Although we are used to working in information silos much of the time, the Semantic Web can allow data to be discovered, shared and reused across application, enterprise, and community boundaries. The speakers will demonstrate how our existing data (from both VR collections and museums) can be transformed to the RDF format; how the effort can be shared in a community; and how LOD will affect and expand the tools we use daily to provide controlled vocabulary terms.

PRESENTERS:
Trish Rose-Sandler, Center for Biodiversity Informatics, Missouri Botanical Garden
Jeffrey Mixter, Kent State University Research Support
Georgina Goodlander, Smithsonian American Art Museum
Patricia Harpring, Getty Vocabulary Program, Getty Research Institute

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What, How, and Why of Linked Open Data

  1. 1. 3/15/14 Visual Resources Association Milwaukee, WI What, How, and Why of Linked Open Data Trish Rose-Sandler
  2. 2. 3/15/14 Visual Resources Association Milwaukee, WI • Open Data refers to data or metadata that is made freely available to the public with the express permission to reuse freely for any purpose, though publishers may require attribution. • Linked Data refers to data or metadata that is made available on the web in a format that utilizes generally accepted markup and World Wide Web protocol, much the way web pages utilize a code that allows them to be read by web browsers. • Linked Open Data refers to data or metadata made freely available on the World Wide Web with a standard markup format. ~ Jon Voss, Radically Open Cultural Heritage Data on the Web http://www.museumsandtheweb.com/mw2012/papers/radically_open_cultural_heritage_data_on_ the_w What is Linked Open Data?
  3. 3. 3/15/14 Visual Resources Association Milwaukee, WI How to Open Data • One click downloads • OAI-PMH harvesting • APIs • OpenURL • Export files Make data accessible and downloadable both individually and in bulk
  4. 4. 3/15/14 Visual Resources Association Milwaukee, WI How to Open Data Copyright and Licensing • License metadata so it can be reused w/o restrictions
  5. 5. 3/15/14 Visual Resources Association Milwaukee, WI How to Open Data Copyright and Licensing • If your content files are no longer under copyright then make that status clear
  6. 6. 3/15/14 Visual Resources Association Milwaukee, WI How to Open Data Copyright and Licensing If your content files are still under copyright and if your institution is the copyright owner, encourage your institution to license the content as openly as possible. CCO CC-BY CC-BY-SA CC-BY-NC
  7. 7. 3/15/14 Visual Resources Association Milwaukee, WI How to Open Data Copyright and Licensing PDDL ODC-By ODC-ODbL Definition from the Open Knowledge Foundation “A piece of data or content is open if anyone is free to use, reuse, and redistribute it — subject only, at most, to the requirement to attribute and/or share-alike.”
  8. 8. 3/15/14 Visual Resources Association Milwaukee, WI How to Link Data 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 standards (RDF, SPARQL) 4. Include links to other URIs. so that they can discover more things. ~Tim Berners Lee 2006
  9. 9. 3/15/14 Visual Resources Association Milwaukee, WI How to Link Data RDF Triples <subject> <predicate> <object>
  10. 10. 3/15/14 Visual Resources Association Milwaukee, WI How to Link Data Include links to other URIs. so that they can discover more things
  11. 11. 3/15/14 Visual Resources Association Milwaukee, WI Benefits of LOD to your organization • Increases discoverability and promotes your collection to new audiences • Enables Data enrichment • Stimulates creative reuse • Can be less taxing on staff resources
  12. 12. 3/15/14 Visual Resources Association Milwaukee, WI Why is LOD important to cultural heritage community? “In line with institutional goals and mission with reference to disseminating knowledge, playing a role within the community, enabling innovation, enhancing the web of knowledge” JISC Open Bibliographic Data Guide
  13. 13. 3/15/14 Visual Resources Association Milwaukee, WI Cultural heritage LOD milestones
  14. 14. 3/15/14 Visual Resources Association Milwaukee, WI Credits Title slides 1 & 2 - Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch retrieved from http://lod-cloud.net/ Slide 9 – 4 LOD principles BernersLee, T. (2006a). Linked Data. Retrieved from http://www.w3.org/DesignIssues/LinkedData.html Slide 10 – RDF graph and serialization W3C RDF 1.1. Primer retrieved from http://www.w3.org/TR/2014/NOTE-rdf11-primer-20140225/ Slide 12 Image When Nature Takes Over Ms. Neaux Neaux retrieved from http://http://tinyurl.com/pp8s4oa Slide 13 Quote from JISC document Open Bibliographic Data Guide retrieved from http://obd.jisc.ac.uk/wp-content/uploads/2010/11/Open-Bibliographic-Data-The-Use-Cases.pdf Slide 14 Open culture milestone timeline. Created by Lotte Belice Baltussen, (CC BY-SA http://creativecommons.org/licenses/by-sa/3.0 retrieved from http://mw2013.museumsandtheweb.com/paper/open-culture-data-opening-glam-data-bottom-up/
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