Linked Data         and Libraries:         What? Why?             How?                                                    ...
An announcement fromthe Library of Congress…Photo credit: http://www.flickr.com/photos/alwright1/2613979675/
“…the Library community‟s data      carrier, MARC, is „based on forty-year-old      techniques for data management and is ...
What isLinkedData?
“…linked data describes a method ofpublishing structured data so that it can beinterlinked and become more useful.”       ...
Semantic Web vs. Linked Data
web of documents       vs.   web of data
resource           links to                                         resource         links to                             ...
data             links to  data                                          data              links to                       ...
Relationships are key                  Photo credit: http://www.flickr.com/photos/brenda-starr/3509344100/
Encoded meaning <h1>This is a heading.</h1> <p>This is a paragraph.</p> <h1>My Favorite Trees</h1>   <p>I like oak trees.<...
Encoded meaning<rdf:Description  rdf:about="http://www.recshop.fake/cd/Empire  Burlesque">   <cd:artist>Bob Dylan</cd:arti...
Links between entities<rdf:Description rdf:about=“http://www4.wiwiss.fu-   berlin.de/bookmashup/books/0375507256”><rev:has...
data             links to  data                                          data              links to                       ...
1.   Data instead of documents2.   Relationships are key3.   Encoded meaning4.   Links between entitiesSo what?
Linked  Datamakes theWeb into adatabase.
How doesLinked Data  happen?
Linked Data Principles                                 Use HTTP URIs so Use URIs as names                                 ...
URIsUniform Resource Identifiers = unique identifiers         http://www.example.com/thing1
RDF         Resource Description FrameworkDescribes relationships based on triples (statements):               subject-pre...
RDF              predicate subject                   object                 hasA Christmas     author                     ...
RDF Graph  has author    A Christmas                           has              Carol      publisherCharlesDickens        ...
RDF Graph with URIs        http://example.org/            hasAuthor            http://example.org/books/2002275771        ...
RDF<rdf:Description  rdf:about=“http://example.org/books/2002275771”><dc:creator  rdf:resource=“http://id.loc.gov/authorit...
OntologiesAn ontology is a vocabulary of specificterms to be used to describe resources.           Sound familiar?
5 Stars of Linked Open Data★ Available on the web★★ Available as structured data★★★ Available in a non-proprietary format★...
Linked OPEN                                                                     DataPhoto credit: http://www.flickr.com/ph...
Why shouldlibraries careabout Linked    Data?
Changes tobibliographic     data
Bibliographic Record                        In traditionalAuthor                        cataloging, aTitle                ...
Bibliographic     Record                           Bibliographic                              RecordBibliographic   Record...
With Linked Data, a bibliographic recordis made up of many pieces of data.          Bibliographic Record  Person          ...
The        Bibliographic Record                               boundariesPerson                         of the             ...
…and the        Bibliographic Record   data can                               interact withPerson                         ...
…and make        Bibliographic Record   use of otherPerson                         data on the                            ...
New federated   searchpossibilities
New waysof searchingour catalogs
New homes     for librarians‟    skills
Are there  sources oflinked library    data?
http://id.loc.gov
http://viaf.org
http://dewey.info/
http://rdvocab.info/
http://richard.cyganiak.de/2007/10/lod/
What doesLinked Data look like?
http://www.nines.org
http://www.civilwardata150.net/
http://www.openlibrary.org
Resources
The Thirty Minute Guide to RDF       and Linked Data by Ian Davis and Tom Heathhttp://www.slideshare.net/iandavis/30-minut...
Be Part of the Web - Not Just On It:     Report of the Stanford Linked Data      Workshop, 27 June - 1 July 2011http://www...
Linked Open Data in Libraries,   Archives, and Museums                 http://lod-lam.net/
Managing Metadata  by Laura Smarthttp://library.caltech.edu/laura/
ALA Linked Data Interest Group    http://connect.ala.org/node/142470
Bibliographic Framework  Transition Initiative     http://www.loc.gov/marc/transition/
BIBFRAME listservhttp://listserv.loc.gov/listarch/bibframe.html
Thank you!           Emily Dust Nimsakont            Cataloging Librarian        Nebraska Library Commission     emily.dus...
NCompass Live: Linked Data and Libraries: What? Why? How?
NCompass Live: Linked Data and Libraries: What? Why? How?
NCompass Live: Linked Data and Libraries: What? Why? How?
NCompass Live: Linked Data and Libraries: What? Why? How?
NCompass Live: Linked Data and Libraries: What? Why? How?
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NCompass Live: Linked Data and Libraries: What? Why? How?

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In October of 2011, the Library of Congress released a statement outlining its efforts to move away from the MARC 21 format and toward another carrier for library data. According to the statement, "Linked Data principles and mechanisms" will be the focus of this project. You may be wondering, what is Linked Data? What could it mean for our library catalogs? How do we create Linked Data? In this session, Emily Nimsakont, the NLC’s Cataloging Librarian, will answer those questions and more.
NCompass Live - Jan. 11, 2012.

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  • Linked Data makes the Web into an API.
  • The elements of author, title, etc., only really have meaning in the context of the record.
  • MARC format, our encoding standard, is set up to exchange records, not data.
  • NCompass Live: Linked Data and Libraries: What? Why? How?

    1. 1. Linked Data and Libraries: What? Why? How? Emily Dust Nimsakont Nebraska Library Commission NCompass LivePhoto credit: http://www.flickr.com/photos/mytudut/5197551003/ January 11, 2012
    2. 2. An announcement fromthe Library of Congress…Photo credit: http://www.flickr.com/photos/alwright1/2613979675/
    3. 3. “…the Library community‟s data carrier, MARC, is „based on forty-year-old techniques for data management and is out of step with programming styles of today.‟” “…something new is now needed…” “The new bibliographic framework project will be focused on…Linked Data principles and mechanisms…”“A Bibliographic Framework for the Digital Age” http://www.loc.gov/marc/transition/news/framework-103111.html
    4. 4. What isLinkedData?
    5. 5. “…linked data describes a method ofpublishing structured data so that it can beinterlinked and become more useful.” “It builds upon standard Web technologies such as HTTP and URIs, but rather than using them to serve web pages for human readers, it extends them to share information in a way that can be read automatically by computers.”“This enables data from different sourcesto be connected and queried.” http://en.wikipedia.org/wiki/Linked_data
    6. 6. Semantic Web vs. Linked Data
    7. 7. web of documents vs. web of data
    8. 8. resource links to resource links to links to resource links to links to resourceresource
    9. 9. data links to data data links to data links to datadata links to data data data links to data data data
    10. 10. Relationships are key Photo credit: http://www.flickr.com/photos/brenda-starr/3509344100/
    11. 11. Encoded meaning <h1>This is a heading.</h1> <p>This is a paragraph.</p> <h1>My Favorite Trees</h1> <p>I like oak trees.</p><p>I also like maple trees.</p>
    12. 12. Encoded meaning<rdf:Description rdf:about="http://www.recshop.fake/cd/Empire Burlesque"> <cd:artist>Bob Dylan</cd:artist> <cd:country>USA</cd:country> <cd:company>Columbia</cd:company> <cd:price>10.90</cd:price> <cd:year>1985</cd:year> </rdf:Description> http://www.w3schools.com/rdf/rdf_example.asp
    13. 13. Links between entities<rdf:Description rdf:about=“http://www4.wiwiss.fu- berlin.de/bookmashup/books/0375507256”><rev:hasReview rdf:resource=“http://www4.wiwiss.fu- berlin.de/bookmashup/reviews/0375507256_EditorialReview1” /><dc:creator rdf:resource=“http://www4.wiwiss.fu- berlin.de/bookmashup/persons/David+Mitchell”/><dc:format>Paperback</dc:format><dc:identifier rdf:resource=“urn:ISBN:0375507256”/><dc:publisher>Random House Trade Paperbacks</dc:publisher><dc:title>Cloud Atlas: A Novel</dc:title></rdf:Description> http://commonplace.net/2009/06/linked-data-for-libraries/
    14. 14. data links to data data links to data links to datadata links to data data data links to data data data
    15. 15. 1. Data instead of documents2. Relationships are key3. Encoded meaning4. Links between entitiesSo what?
    16. 16. Linked Datamakes theWeb into adatabase.
    17. 17. How doesLinked Data happen?
    18. 18. Linked Data Principles Use HTTP URIs so Use URIs as names people can look up for things these namesWhen someone looks up a URI, provide Include links to other useful URIs, so that they caninformation, using the discover more things standards Tim Berners-Lee, “Linked Data-Design Issues.” http://www.w3.org/DesignIssues/LinkedData.html
    19. 19. URIsUniform Resource Identifiers = unique identifiers http://www.example.com/thing1
    20. 20. RDF Resource Description FrameworkDescribes relationships based on triples (statements): subject-predicate-object http://www.w3.org/RDF
    21. 21. RDF predicate subject object hasA Christmas author Charles Carol Dickens
    22. 22. RDF Graph has author A Christmas has Carol publisherCharlesDickens Penguin
    23. 23. RDF Graph with URIs http://example.org/ hasAuthor http://example.org/books/2002275771 http://example.org/hasPublisherhttp://id.loc.gov/authorities/ names/n78087607/ http://example.org/publishers /12345
    24. 24. RDF<rdf:Description rdf:about=“http://example.org/books/2002275771”><dc:creator rdf:resource=“http://id.loc.gov/authorities/names/n780 87607”/><dc:publisher ref:resource=“http://example.org/publishers/12345” /></rdf:Description>
    25. 25. OntologiesAn ontology is a vocabulary of specificterms to be used to describe resources. Sound familiar?
    26. 26. 5 Stars of Linked Open Data★ Available on the web★★ Available as structured data★★★ Available in a non-proprietary format★★★★ Use open standards to identifythings, so people can point at your stuff★★★★★ Link your data to other people‟sdata to provide context http://www.w3.org/DesignIssues/LinkedData.html
    27. 27. Linked OPEN DataPhoto credit: http://www.flickr.com/photos/eirikref/727551264/
    28. 28. Why shouldlibraries careabout Linked Data?
    29. 29. Changes tobibliographic data
    30. 30. Bibliographic Record In traditionalAuthor cataloging, aTitle record is one package.
    31. 31. Bibliographic Record Bibliographic RecordBibliographic Record Records can be exchanged, but there is no way to exchange the individual pieces of information within a record.
    32. 32. With Linked Data, a bibliographic recordis made up of many pieces of data. Bibliographic Record Person And the relationships Is author of between these pieces of data are Title defined.
    33. 33. The Bibliographic Record boundariesPerson of the record canIs author of be dissolved…Title
    34. 34. …and the Bibliographic Record data can interact withPerson otherIs author of information on theTitle Web…
    35. 35. …and make Bibliographic Record use of otherPerson data on the web.Is author ofTitle
    36. 36. New federated searchpossibilities
    37. 37. New waysof searchingour catalogs
    38. 38. New homes for librarians‟ skills
    39. 39. Are there sources oflinked library data?
    40. 40. http://id.loc.gov
    41. 41. http://viaf.org
    42. 42. http://dewey.info/
    43. 43. http://rdvocab.info/
    44. 44. http://richard.cyganiak.de/2007/10/lod/
    45. 45. What doesLinked Data look like?
    46. 46. http://www.nines.org
    47. 47. http://www.civilwardata150.net/
    48. 48. http://www.openlibrary.org
    49. 49. Resources
    50. 50. The Thirty Minute Guide to RDF and Linked Data by Ian Davis and Tom Heathhttp://www.slideshare.net/iandavis/30-minute- guide-to-rdf-and-linked-data
    51. 51. Be Part of the Web - Not Just On It: Report of the Stanford Linked Data Workshop, 27 June - 1 July 2011http://www.clir.org/pubs/reports/pub152/LinkedDataWorkshop.pdf
    52. 52. Linked Open Data in Libraries, Archives, and Museums http://lod-lam.net/
    53. 53. Managing Metadata by Laura Smarthttp://library.caltech.edu/laura/
    54. 54. ALA Linked Data Interest Group http://connect.ala.org/node/142470
    55. 55. Bibliographic Framework Transition Initiative http://www.loc.gov/marc/transition/
    56. 56. BIBFRAME listservhttp://listserv.loc.gov/listarch/bibframe.html
    57. 57. Thank you! Emily Dust Nimsakont Cataloging Librarian Nebraska Library Commission emily.dust.nimsakont@nebraska.gov 800-307-2665www.delicious.com/NLC_Reference/ncompasslive+linkeddata www.slideshare.net/nebraskaccess
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