1. Ed Summers edsu@loc.gov
Linked Data  at  loc.gov
show of hands:
- people that work in the library
- people already familiar with semweb
- people wanting to learn more about semantic web
Ed Summers

2. Introduce myself: software developer, digital preservation
Disclaimer about me not speaking for LC
>32 million cataloged books 470 languages
>61 million manuscripts

3. circa 1890
North Wing Capitol Bldg

4.
Copyright Act of 1870

5. circa 1897, books acquired by Copyright

6. Charles Ammi Cutter
Boston Athenaeum 

7. title 
author
subject
classification

8. Sterling Memorial Library at Yale
Subject
Title 
Name

9. started in 1901
ended in 1997

10. [Men working at machines in Card Division Printing Office, Library of Congress, Washington, D.C.]
circa

11. systems analyst and computer programmer formerly of the NSA
developed MARC in the mid 1960s, initially for telling machines how to automate card printing ... 
in use around the world for sharing bibliographic data.

12. evil slide #1

13. ILS started in late 60s,70s
Conversion of card catalogs to databases.

14. 1990

16. xml rec 1998
Metadata Object Description Schema
Brings us up to current day.

18. Show of hands how many people have seen the Linked Data Design Principles before?
Walk through these design principles with real live examples from the Library of Congress.

19. Use URLs as names for things.
timbl in his TED talk collapsed the 1st two rules into one
Used to using URLs for documents.

21. david weinberger, eminent new yorker, and philosopher of the web

22. Internet as a topic.

23. Controlled vocabulary of topics.
342,689 concepts

24.
To enable to use the data.

25. When someone looks up a URI, provide useful information.

27. evil slide #2

28. SKOS vocabulary 
taxonomies, thesauri, controlled vocabulary.

30. Include links to other URIs, so that they can discover other things.
Since LCSH is really a target for URIs going to talk about another  project. NDNP.

31. 5 years into a 30 year project w/ NEH to work with libraries around the country to digitize historic newspaper collections
NYPL a partner.

32. 139,600 title metadata records

33. 92,125 issues

35. 986,497 pages

36. 180 batches 
60 TB

37. links to the data

38. Include links to other URIs, so that they can discover other things.

39. links to geonames, dbpedia, lingvoj
so many more facts there and at geonames: maps, long/lat names 

40. linking open data community
discussion list
enrichment
by Chris Bizer 

41. Standard thee tier architecture:
Django
rdflib
Solr

42. django models
serialize models as rdf using rdflib
make available at predictable URIs
Advertise the URIs your HTML

43. Why?

44. photo by Allan Engelhardt 

45. People have probably already thought about the sorts of resources in your domain.
Think about the resources in your app.

46. If you assign URIs to those resources.
Use HTTP and the architecture of the web to deliver representations of them.
Scalability and security layered in.
Thought experiment: is syndication linked data. 
Atom instead of rdf/xml?

47. Suggested Reading
Cool URIs for the Semantic Web.  Leo Sauermann and Richard Cyganiak.
Linked Data Design Issues . Tim Berners-Lee.
On Linking Alternative Representations To Enable Discovery and Publishin g. T. V. Raman.
How to Publish Linked Data on the Web . Chris Bizer, Richard Cyganiak and Tom Heath.