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Dewey Update

Dewey.info Update. Dewey Breakfast/Update ALA Midwinter January 16, 2010 Michael Panzer. http://dewey.info. Experimental space for linked DDC data Available now: Linked data version of the DDC Summaries in ten languages Features include:

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Dewey Update

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  1. Dewey.info Update • Dewey Breakfast/Update • ALA Midwinter • January 16, 2010 • Michael Panzer

  2. http://dewey.info • Experimental space for linked DDC data • Available now: Linked data version of the DDC Summaries in ten languages • Features include: • Access to the top three levels of the DDC in ten languages • Actionable URIs for every class of the DDC Summaries • Classification semantics encoded in SKOS • Representations for machines and for humans • Data is reusable under a Creative Commons BY-NC-ND license

  3. Linked Open Data cloud

  4. Requirements for publishing Linked Data • Identification • Every data entity has a URI • Access • HTTP as protocol (established infrastructure: WWW) • User agent indicates which data formats it accepts • Representation • for machines • RDF as data model • SKOS, Dublin Core, ccREL, etc. as vocabularies • for humans • HTML, etc. • “Openness” of the data set

  5. Use Case: Basic web lookup • “If someone has the URI of that thing, what relationships to what other objects is it useful to know about?”(Tim Berners-Lee) • A web page for every class of the Dewey Summaries, e.g.: • <http://dewey.info/class/641/>

  6. Demo: dewey.info • http://dewey.info/class/641/ • http://dewey.info/class/641/about.rdf • http://dewey.info/class/641/about.en • http://dewey.info/class/641/about.sv • http://dewey.info/class/641/2009/08/about.ar.html • http://dewey.info/class/641/2009/08/about.ar.rdf

  7. Use Case: Shelf labels as display alternative http://worldcat.org/search?q=dd:641+yr:2009 http://dewey.info/class/641/ http://dewey.info/class/641/about.es http://dewey.info/class/641/about.en

  8. Use Case: Shelf labels as display alternative http://worldcat.org/search?q=dd:734+yr:2009 http://dewey.info/class/734/ http://dewey.info/class/734/about.zh http://dewey.info/class/734/about.en

  9. Coming Soon ... • More languages • More data • Table 2 with links to FAST headings / GeoNames • Abridged 14 • German DDC 22 data • Agreement between Deutsche Nationalbibliothek and OCLC to make numbers, captions, and more of full DDC 22 available under Creative Commons

  10. Geocoding? • Adding geographic coordinates from other (geographic) data • Coordinates are added to Dewey classes in Table 2 • Example • AustraliaT2—943 Queensland: -20.0,145.0 • OhioT2—77156 Franklin County: 39.966731,-83.0165727[+39° 58', -83° 1'] • Useful for geographic information retrieval (spatial queries) in combination with new 085 fields

  11. T2—94 Australia displayed with Google Earth

  12. NYT articles dewey.info Tacoma (Wash) http://data.nytimes.com/N51488338864578420851 T2—797788 Tacoma NYT http://dewey.info/class/2--797788/ Geo-Names http://sws.geonames.org/5812944/ Linking Open Data example: New York Times

  13. Thank you! What other data would you like to see? In what way, shape, or format? Other comments, suggestions? panzerm@oclc.org

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