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Thinking of Linking


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Thinking of Linking: A random series of ideas, concepts, Platonic ideals, a yeoman's miscellany, and nonesuch guide to Linked Data, especially as it relates to libraries, archives, and museums. American Association of Museums Meeting. Minneapolis, MN. 2 May 2012.

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Thinking of Linking

  1. 1. Martin R. KalfatovicA random series of Smithsonian Libraries ideas, concepts, Platonic ideals, a AAM 2012 Minneapolis, MN yeomans 2 May 2012 miscellany, andnonesuch guide to Linked Data, especially as itrelates to libraries, archives, and museums
  2. 2. WWW circa 1991 W
  3. 3. Berners-Lee Schematic
  4. 4. Why Linked Open Data? • It’s cool • “Increase and Diffusion of Knowledge” • Share, contribute to a global database • Create context around data • Allow data to be reused/repurposed by creators and a worldwide community • Improve discoverability of content
  5. 5. So Just what is Linked Data• Publishing structured data on the web• RDF (Resource Description Framework)• Enables queries computer 2 computer• uses standard ontologies (vocabularies) • data in “triples” (“triplestore”)
  6. 6. Example of a TriplestoreURI
  7. 7. Some Linked Data Buzzwords, er StandardsRDF, OWL, SPARQL,RDFa, SKOS,RDFS, GRDDL,POWDER, RIF,SAWSDL, RDB2RDF
  8. 8. Linked Data Design Issues“The Semantic Web isn’t just about putting data on the web. It isabout making links, so that a person or machine can explore theweb of data. With linked data, when you have some of it, you canfind other, related, data.” Tim Berners-Lee, Linked Data – Design Issues1. Use URIs as names for things.2. Use HTTP URIs so people can look up those things.3. When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL). 4. Include links to other URIs, so they can discover more things.
  9. 9. * On the web, open ** Machine-readable data *** Non-Propriety format **** RDF Standards Linked RDF*****
  10. 10. DBpedia is a community effort to extract structuredinformation from Wikipedia and to make this informationavailable on the Web. DBpedia allows you to asksophisticated queries against Wikipedia, and to link otherdata sets on the Web to Wikipedia data.
  11. 11. The three sides of the tri-color cube in these logos evokethe triplet of the RDF model. The peeled back lid invitesyou to Open Your Data to the Semantic Web!
  12. 12. + D P L A Towards a Digital Public Library of America
  13. 13. +Expand from current 100,000record sample set to describeall of records with a commonset of terms D P L ARoll this full-size triplestore outto a publicly accessible beta.Begin to link out to other things,e.g. VIAF Towards a Digital Public Library of America
  14. 14. Thanks! To: Keri Thompson Joel Richard Suzanne Pilsk Ed Summers Trish Rose-Sandler Matt Phillips@UDCMRK