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.

1. Martin R. Kalfatovic
A random series of Smithsonian Libraries
ideas, concepts,
Platonic ideals, a AAM 2012
Minneapolis, MN
yeoman's
2 May 2012
miscellany, and
nonesuch guide to
Linked Data,
especially as it
relates to libraries,
archives, and
museums

10. WWW circa 1991
W

11. Berners-Lee Schematic

14. 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

15. 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”)

16. Example of a Triplestore
URI
http://library.si.edu/tl2/author/charles-darwin
Predicate
owl:sameAs
Object
http://viaf.org/viaf/27063124

17. Some Linked Data Buzzwords, er
Standards
RDF, OWL, SPARQL,
RDFa, SKOS,
RDFS, GRDDL,
POWDER, RIF,
SAWSDL, RDB2RDF

18. Linked Data Design Issues
“The Semantic Web isn’t just about putting data on the web. It is
about making links, so that a person or machine can explore the
web of data. With linked data, when you have some of it, you can
find other, related, data.”
Tim Berners-Lee, Linked Data – Design Issues
1. 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.
http://www.w3.org/DesignIssues/LinkedData.html

19. * On the web, open
** Machine-readable data
*** Non-Propriety format
**** RDF Standards
Linked RDF
*****

20. DBpedia is a community effort to extract structured
information from Wikipedia and to make this information
available on the Web. DBpedia allows you to ask
sophisticated queries against Wikipedia, and to link other
data sets on the Web to Wikipedia data.

21. The three sides of the tri-color cube in these logos evoke
the triplet of the RDF model. The peeled back lid invites
you to Open Your Data to the Semantic Web!

22. +
D P
L A
Towards a Digital Public Library
of America

23. +
Expand from current 100,000
record sample set to describe
all of records with a common
set of terms
D P
L A
Roll this full-size triplestore out
to a publicly accessible beta.
Begin to link out to other things,
e.g. VIAF
Towards a Digital Public Library
of America

26. Thanks!
To:
Keri Thompson
Joel Richard
Suzanne Pilsk
Ed Summers
Trish Rose-Sandler
Matt Phillips
@UDCMRK