Dewey.info UpdateDewey.info Update

Dewey Breakfast/UpdateALA Midwinter

January 16, 2010Michael Panzer

http://dewey.infohttp://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

Linked Open Data cloudLinked Open Data cloud

Requirements for publishing Linked DataRequirements 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

Use Case: Basic web lookupUse 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/>

Demo: dewey.infoDemo: 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

Use Case: Shelf labels as display alternativeUse Case: Shelf labels as display alternative

http://dewey.info/class/641/

http://dewey.info/class/641/about.es

http://dewey.info/class/641/about.en

http://worldcat.org/search?q=dd:641+yr:2009

Use Case: Shelf labels as display alternativeUse Case: Shelf labels as display alternative

http://dewey.info/class/734/

http://dewey.info/class/734/about.zh

http://dewey.info/class/734/about.en

http://worldcat.org/search?q=dd:734+yr:2009

Coming Soon ...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

Geocoding?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

T2—94 Australia displayed with Google EarthT2—94 Australia displayed with Google Earth

Linking Open Data example: New York TimesLinking Open Data example: New York Times

http://sws.geonames.org/5812944/

Geo-Names

T2—797788 Tacomahttp://dewey.info/class/2--797788/

dewey.info

Tacoma (Wash)http://data.nytimes.com/N51488338864578420851

NYT

NYT articles

Thank you!Thank you!

What other data would you like to see?

In what way, shape, or format?

Other comments, suggestions?

panzerm@oclc.org