Linked Data: from Library Entities to the Web of Data
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Richard Wallis Linked Data: from Library Entities to the Web of Data Technology Evangelist @rjw
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Presentation to the ALCTS session "International Developments in Library Linked Data: Think Globally" at the American Library Association Conference in Las Vegas - June 2014
Transcript of Linked Data: from Library Entities to the Web of Data
Richard Wallis
Linked Data: from Library Entities to the Web of DataTechnology Evangelist@rjw
Linked Data
Linked Data
edition
author location
holding
date of publication
classification
publisher
title
source
ISBN
author location
holding
classification
publisher
person place
object concept
organization work
library data:
stored as records
title
authorperson place
object concept
organization work
subjectitemavailability
library data stored as entities
person place
object concept
organization work
library data stored as entitieslibrary knowledge graph
A graph of relationships
What’s Happening on The Web:schema.org
15% Of Web
Use Schema.org
markup!
What’s Happening for Libraries:SchemaBibExtend
• W3C Activity• Schema.org Based
http://www.w3.org/community/schemabibex/
WorldCat Entities
Works
• 197+ million Work descriptions and URIs• Schema.org• RDF Data formats – RDF/XML, Turtle, Triples, JSON-LD
• Links to WorldCat manifestations• Links to Dewey, LCSH, LCNAF, VIAF, FAST• Open Data license• Released April 2014
Part of the Web of Data
• A Technology• Standard on the Web – RDF, URIs, Vocabularies• Identifying and Linking resources on the Web• Important powerful enabling technology
• But only a technology… for the systems folks to worry about• Real benefits flow from: Entity Based Data Architecture
Powered by Linked Data
Linked Data
Entity Based Data
on the Web
Knowledge Graphs
Semantic Search
… beneficial effects for libraries
http://www.theeuropeanlibrary.org/tel4/newsitem/5350
“… more than 80 per cent of these visitors coming from search engines …”
• To get their products/resources in front of users- Next Generation SEO
• It is a shared approach from the Search Engines- But not exclusive to them
Why is the Web Adopting This?(Entities, Semantic Search, Linked Data)
Syndication For Libraries
• Aggregate to a central site - National Library, Consortia, WorldCat.org
• Details published to syndication partners- WorldCat: Amazon, Google Scholar, EasyBib,
EBSCO, OpenLibrary, FindMyLibrary, RedLaser, Yelp, …
• Links from aggregators to individual libraries- Find in a library
Today
Efficient but indirect
WorldCat
Syndication
Year to June 2013
• 77 Million referrals from partners
• 8.7 Million click-through to libraries
Syndication For Libraries
• Individual libraries publish resource data- Linked Data in local discovery interfaces- Links to authoritative hubs – set global context• VIAF, LoC, WorldCat Works, …
• Recognized and identified on the Web- Google, Bing, Yahoo!, Yandex, etc.- Where our users are
• Users referred directly to resources in the library
On the Web of Data
Direct and Effective
Bibliographic Entities in the Web of Data
Cataloging
Integration with the web
Cascading updates More options
Intuitive searching
OCLC Entity Based Data Strategy VIAF, ISNI, FAST Publish Linked Data
WorldCat.org Linked Data Release – using Schema.org
Internal agreement on data strategy
Evangelism
Research & Design with Data Architecture Group
Data mining of WorldCat resources
WorldCat Works Released
2012
2014
Application Integration WorldCat Discovery
Analytics
Discovery API
Cataloging
2015
More Entities Released Person
Organization
Event
Concept
New Products
Continuing Evangelism
New Services
Continuing Innovation
2013
2016
Yeah – but what can I do?• Your resources in the Web of Data
- Contribute to WorldCat
• Start linking your resources - WorldCat Work URIs in your data
• Register institution on the web - Schema.org – Organization/Library- WorldCat Registry- Schema.org across your Website(s)
• Talk to system providers / projects- Not just a Linked Data feature- Exposing Entities in global context
Explore. Share. Magnify.
Richard WallisTechnology Evangelist
@rjw
Linked Data: from Library Entities to the Web of Data
