Linked Data and Discovery with Steve Meyer
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This document summarizes a presentation about using linked data to improve library discovery. It discusses linking library data to non-library data sources to provide a richer context about materials. It introduces key concepts of linked data like identifying entities, using URIs, and standard vocabularies. The presentation also provides examples of how linked data is being applied in library catalogs by connecting catalog records to sources like VIAF, DBpedia, and Wikidata.
![“Things, Not Strings”
“richer meaning
make some unexpected discoveries
discover new information quickly and easily
search for things, people or places that
Google knows about
next generation of search […] taps into the
collective intelligence of the web and
understands the world a bit more like
people do](https://image.slidesharecdn.com/linkeddataanddiscovery-wilspeercouncil2017-170606205713/85/Linked-Data-and-Discovery-with-Steve-Meyer-14-320.jpg)
Linked Data and Discovery with Steve Meyer
- 1. June 5, 2017 Linked Data and Library Discovery WiLS Peer Council 2017 STEVE MEYER, DATA STRATEGIST UNIVERSITY OF WISCONSIN–MADISON LIBRARIES
- 6. Improve library discovery with NON-library data.
- 7. Data at My Library Data in the World Relevant to My Patrons
- 9. Zweizig’s Paradigm Shift prefer the perspective of the library in the life of the user rather than the user in the life of the library Zweizig, Douglas Lough. Predicting Amount of Library Use: An Empircal Study of the Role of the Public Library in the Life of the Adult Public. Dissertation, Syracuse University, 1973. ✓
- 10. Shifted Data Context situate the Work within all data about its creator rather than merely data known by the library ✓
- 11. 11 The Web of Data Entities & Things (not strings)
- 12. “Things, Not Strings” May 2012: Google Introduces its Knowledge Graph http://googleblog.blogspot.com/2012/05/introducing-knowledge-graph-things-not.html
- 14. “Things, Not Strings” “richer meaning make some unexpected discoveries discover new information quickly and easily search for things, people or places that Google knows about next generation of search […] taps into the collective intelligence of the web and understands the world a bit more like people do
- 18. 18 Linked Data
- 19. Linking Open Data cloud diagram 2017, by Andrejs Abele, John P. McCrae, Paul Buitelaar, Anja Jentzsch and Richard Cyganiak. http://lod-cloud.net/
- 20. W3C Data Activity The Data Activity recognizes and works to overcome this diversity to facilitate potentially Web-scale data integration and processing. … by providing standard data exchange formats, models, tools, and guidance. The overall vision of the Data Activity is that people and organizations should be able to share data as far as possible using their existing tools and working practices but in a way that enables others to derive and add value and to utilize it in ways that suit them http://www.w3.org/2013/data/
- 21. Linked “share data as far as possible” Data “enables others to derive and add value and to utilize it in ways that suit them”
- 23. “ ” The term Linked Data refers to a set of best practices for publishing and interlinking structured data on the Web. http://linkeddatabook.com/editions/1.0/#htoc8
- 24. Requirements 1. Identify Things 2. Make them Link-able
- 29. "Milwaukee Makerspace" by Pete Prodoehl https://www.flickr.com/photos/raster/5406378168/
- 30. "Milwaukee Makerspace at the 2011 Frolics Parade" by jason gessner https://www.flickr.com/photos/plural/5948309116/ oclc/704257552
- 31. "Milwaukee Makerspace at the 2011 Frolics Parade" by jason gessner https://www.flickr.com/photos/plural/5948309116/ oclc/704257552
- 35. “ ” The Good Lord Bird's author is James McBride.
- 37. “ ” RDF is a standard model for data interchange on the Web. RDF has features that facilitate data merging even if the underlying schemas differ, and it specifically supports the evolution of schemas over time without requiring all the data consumers to be changed. https://www.w3.org/RDF/
- 39. "Homage to Mr. Wetmore" by Jen Waller https://www.flickr.com/photos/jenwaller/6111032796
- 40. RDF Triple
- 48. Linking Open Data cloud diagram 2017, by Andrejs Abele, John P. McCrae, Paul Buitelaar, Anja Jentzsch and Richard Cyganiak. http://lod-cloud.net/
- 51. 51 What does it look like?
- 54. <http://www.worldcat.org/oclc/820123671> <http://schema.org/name> "The Good Lord Bird" <http://www.worldcat.org/oclc/820123671> <http://schema.org/about> <http://id.worldcat <http://www.worldcat.org/oclc/820123671> <http://www.w3.org/1999/02/22-rdf-syntax-ns#t <http://www.worldcat.org/oclc/820123671> <http://schema.org/author> <http://viaf.org/v <http://viaf.org/viaf/116053682> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <ht <http://viaf.org/viaf/116053682> <http://schema.org/name> "McBride, James" . <http://id.worldcat.org/fast/1204155> <http://schema.org/name> "United States" . <http://id.worldcat.org/fast/1204155> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type N-triples Line-based plain text RDF
- 55. <div resource="http://www.worldcat.org/oclc/820123671" typeof="http://schema.org/Book"> <h1 property="http://schema.org/name">The Good Lord Bird</h1> <div property="http://schema.org/author" resource="http://viaf.org/viaf/116053682" typeof="http://schema.org/Person"> <h2 property="http://schema.org/name">McBride, James</h2> </div> <h3>Subjects</h3> <ul> <li property="http://schema.org/about" resource="http://id.worldcat.org/fast/1204155" typeof="http://schema.org/Place"> <span property="http://schema.org/name">United States</span> </li> </ul> </div> RDFa RDF as attributes embedded in HTML
- 56. Turtle RDF serialized for humans readability @prefix schema: <http://schema.org/> . <http://www.worldcat.org/oclc/820123671> a schema:Book ; schema:about <http://id.worldcat.org/fast/1204155> ; schema:author <http://viaf.org/viaf/116053682> ; schema:name "The Good Lord Bird" . <http://viaf.org/viaf/116053682> a schema:Person ; schema:name "McBride, James, 1957-" . <http://id.worldcat.org/fast/1204155> a schema:Place ; schema:name "United States"
- 57. RDF/XML Because someone wanted to read it with an XML parser
- 59. “Administrative” Vocabularies RDF RDF Concept Vocabulary RDFS Resource Description Framework Schema OWL Web Ontology Language …
- 60. Descriptive Vocabularies DC Terms Dublin Core Metadata Terms Schema Schema.org vocabulary Library Library extensions to Schema.org BIBFRAME Library of Congress model for bibliographic description …
- 65. "One of these Things is not like the others.” © Attribution JD Hancock https://www.flickr.com/photos/jdhancock/6216677689
- 67. Why?
- 68. What Works?
- 69. "Pizza Crime Context" by jamelah e. © Attribution-NonCommercial-NoDerivs https://www.flickr.com/photos/jamelah/4992871301/
- 76. 76 Briefly: UW-Madison Libraries Philosophy of Experimentation See: library.wisc.edu/experiments/linked-data
- 77. “ ” With linked data, when you have some of it, you can find other, related, data. “Linked Data.” Tim Berners-Lee. https://www.w3.org/DesignIssues/LinkedData.html
- 78. BIBFRAMEFully expressive RDF version of modern bibliographic description. Yes, but… don’t forget to link!
- 79. There’s a lot more data out there… “globe" by nickestamp © Attribution-NonCommercial-NoDerivs https://www.flickr.com/photos/10588309@N00/118923209
- 81. 81 Linked Data in the Catalog
- 82. Systems in Play System/Data Role Description Local Catalog User Interface • Ruby on Rails + Solr web app • Client of Alma APIs circ availability, request functionality, etc. • Think Blacklight/VuFind Alma Resource Management Platform • JSON-LD bibliographic data API • JSON-LD API returns entity URIs based on LCNAF authority control VIAF Virtual International Authority File Identity Hub • Inbound: resolve Person data from LCNAF IDs • Outbound: Person entities link to other data related resources/entities on Web Getty Vocabularies Linked Open Data source Contains cited entity descriptions Dbpedia Linked Open Data source Linked Data descriptions from Wikipedia info Wikidata Linked Open Data source • Linked Data descriptions from Wikipedia info • Contains cited entity descriptions
- 85. PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX owl: <http://www.w3.org/2002/07/owl#> PREFIX foaf: <http://xmlns.com/foaf/0.1/> PREFIX dbo: <http://dbpedia.org/ontology/> SELECT ?influenced ?influencedGivenName ?influencedSurname ?influencedSameAs WHERE { { <http://dbpedia.org/resource/Pablo_Picasso> dbo:influenced ?influenced . } UNION { ?influenced dbo:influencedBy <http://dbpedia.org/resource/Pablo_Picasso> . } ?influenced foaf:givenName ?influencedGivenName . ?influenced foaf:surname ?influencedSurname . OPTIONAL { ?influenced owl:sameAs ?influencedSameAs . FILTER regex(STR(?influencedSameAs), "viaf.org"). } } • Query language similar to SQL • Run against public RDF repositories (triplestores) • Executed as HTTP requests SPARQL
- 88. How is this possible? • Authority file data is well positioned to be Linked Data • Major library systems players are cooperating Vendors, Maintainers of National and/or Union Catalogs • Well established, flexible technology patterns platform model, caching, async web apps, object models • Having a major data hub in VIAF “an open book" by kate hiscock © Attribution https://www.flickr.com/photos/slightlyeverything/8228703176/
- 89. June 5, 2017 THANK YOU.
- 90. 90 Catalog Examples: Just for Fun https://search-ld.library.wisc.edu/catalog/999911808002121 In Defense of Food https://search-ld.library.wisc.edu/catalog/9910052189002121 Walden and Civil Disobedience https://search-ld.library.wisc.edu/catalog/999667847902121 The Library in the Life of the User: Engaging with People Where They Live and Learn http://www.oclc.org/research/publications/2015/ oclcresearch-library-in-life-of-user.html Predicting amount of library use: an empirical study of the role of the public library in the life of the adult public https://search.library.wisc.edu/catalog/999546455002121 Introducing the Knowledge Graph: things, not strings https://googleblog.blogspot.com/2012/05/introducing-knowledge-graph-things- not.html The Linking Open Data cloud diagram http://lod-cloud.net/ W3C Data Activity: Building the Web of Data http://www.w3.org/2013/data/ Linked Data: Evolving the Web into a Global Data Space http://linkeddatabook.com/editions/1.0 RDF - Semantic Web Standards https://www.w3.org/RDF/ Linked Data @ UW-Madison Libraries https://www.library.wisc.edu/experiments/linked-data Linked Data by Tim Berners-Lee https://www.w3.org/DesignIssues/LinkedData.html Virtual International Authority File (VIAF) https://viaf.org DBpedia http://wiki.dbpedia.org Wikidata https://www.wikidata.org/wiki/Wikidata:Main_Page Getty Vocabularies as Linked Open Data http://www.getty.edu/research/tools/vocabularies/lod/ BibCard https://github.com/UW-Madison-Library/bibcard p.s. Don’t forget to follow the links!