the power of sharing linked data - elag 2014 workshop
DESCRIPTION
Presentation to set the scene and stimulate discussion in the Workshop "The Power of Sharing Linked Data" at ELAG 2014 - Bath University, UK June 10/11 2014TRANSCRIPT
The world’s libraries. Connected.
ELAG 2014 – Bath, UK
The Power of Sharing Linked Data:Giving the Web What it Wants
Richard WallisOCLC Technology
Evangelist
@rjw
The world’s libraries. Connected.
The world’s libraries. Connected.
The world’s libraries. Connected.
! ?
The world’s libraries. Connected.
Today’s online information seekers have many choices
The world’s libraries. Connected.
Today’s online information seekers have many choices
• Select• Acquire• Describe• Preserve•Expose
The world’s libraries. Connected.
The problem with access to library collections:
People don’t start research in the library catalog?
(No… that’s just a fact.)
The real problem is that we don’t expose our collections very well on the web.
Question: How to connect users to library collections on the web?
The world’s libraries. Connected.
Scribe OPACCard Catalog
Web ofDataWeb
Evolution of Metadata Managementand Library Catalogs
The world’s libraries. Connected.
What the Web wants
What is required to join the web of data?
The world’s libraries. Connected.
What the Web wants
Some things the web wants:
1. Size
2. Familiar structures
3. A network of links
4. Entity identifiers
The world’s libraries. Connected.
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
The world’s libraries. Connected.
authorperson place
object concept
organization work
subjectitemavailability
library data stored as entities
The world’s libraries. Connected.
person place
object concept
organization work
library data stored as entitieslibrary knowledge graph
A graph of relationships
The world’s libraries. Connected.
Knowledge cards for libraries
Günter GrassBorn: 16 October 1927Gdańsk, Poland
German novelist, poet, playwright, illustrator, graphic artist, sculptor and recipient of the 1999 Nobel Prize in Literature.
Works
Subjects
Quotes
Find Günter Grass works at:Libraries near me | Online Retailers
Germany | German literature | Historical fictionWar stories | Black humor | Fantasy
“Even bad books are books and therefore sacred.”—The Tin Drum
Google Knowledge Graph
The world’s libraries. Connected.
person place
work
concept
organization
object
Günter Grass
Historical Fiction
this copy of“The Tin Drum”
Germany
library “Die Blechtrommel”
library data stored as entitiesField in a record vs. entity in knowledge graph
expression“The Tin Drum”
The world’s libraries. Connected.
Evolution of Metadata Managementand Library Catalogs
Scribe OPACCard Catalog
Web ofDataWeb
person place
object concept
organization work
Web ofData
The world’s libraries. Connected.
person place
object concept
organization work
library data stored as entitieslibrary knowledge graph
Works
FRBR: Work
FRBR: Manifestation
The world’s libraries. Connected.
Benefits for All Library WorkflowsThe Data Strategy: WorldCat Works
person place
object
organization work
Cataloging
Integration with the web
Cascading updates More options
Intuitive searching
The world’s libraries. Connected.
What the Web wants
We are already doing a lot of this…
1. Size
2. Familiar structures
3. A network of links
4. Entity identifiers
schema.org
VIAF
= Aggregation
= Linked Data
= Referrals
= Identifiers
The world’s libraries. Connected.
1. Size & Aggregation
The world’s libraries. Connected.
4. A Network of Links & Entity Identifiers
The world’s libraries. Connected.
How does a library contribute to all of this?
1. Register
2. Aggregate
Add your holdings to the network
Manage identifiers:AuthoritiesInstitutions
3. Expose
person place
object concept
organization workwork
The world’s libraries. Connected.
?!
The world’s libraries. Connected.
What the Web wants…
The world’s libraries. Connected.
http://www.theeuropeanlibrary.org/tel4/newsitem/5350
“… more than 80 per cent of these visitors coming from search engines …”
The world’s libraries. Connected.
Things not strings
The world’s libraries. Connected.
Tell them about our resources……using their language and methods
Linked DataThe Web
DataSchema.org
http://www.flickr.com/photos/boston_public_library/6220572487
The world’s libraries. Connected.
WorldCat Linked Data
Linked Data• 311+ million data resources• Schema.org• Embedded RDFa• Links to Dewey, LCSH, LCNAF,
DOI, VIAF, FAST• ODC-BY license• June 2012• Continuing development:
• Vocabulary, Content-negotiation, More Links• Works …
The world’s libraries. Connected.
The world’s libraries. Connected.
How we are sharing with the web
What the web gets:
• WorldCat 311M+ • Schema.org• VIAF, LCSH, Dewey, …• WorldCat persistent
identifiers (URIs)
Some things the web wants:
1. Size
2. Familiar structures
3. A network of links
4. Entity identifiers
The world’s libraries. Connected.
Part of the Web of Data
The world’s libraries. Connected.
Part of the Web of Data
The world’s libraries. Connected.
Part of the Web of Data
Worldcat.org/oclc/81453459The Hidden Face of Eve
http://viaf.org/viaf/84254254/Nawal El Saadawi
http://www.wikidata.org/wiki/Q238514Nawal El Saadawi
http://isni-url.oclc.nl/isni/0000000120296695Nawal El Saadawi
author
sameAs
sameAs
sameAs
VIAF
The world’s libraries. Connected.
15% Of Web
Use Schema.org
markup!
The world’s libraries. Connected.
The world’s libraries. Connected.
BIBFRAME
Bibliographic Framework as aWeb of Data:
It is the foundation for the future of bibliographic description that happens on, in,
and as part of the web and the networked world we live in.
http://www.bibframe.org
The world’s libraries. Connected.
http://www.bibframe.org
The world’s libraries. Connected.
≈ Complementary ≈
bibliographic description as part of the web
? Conflict ?
@Fascinatingpicshttp://www.flickr.com/photos/54136840@N00/4921290518/
The world’s libraries. Connected.
Stop Press
The world’s libraries. Connected.
WorldCat Works Linked Data
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
The world’s libraries. Connected.
WorldCat Works Linked Data
Single Manifesta-tionMultiple Mani-festations
197 Million Work Descriptions
Linking to 311 Million Manifestations
The Route to Library Holdings
84% of WorldCat holding statements
(1.7 billion) associated with multi-
manifestation works
The world’s libraries. Connected.
www.oclc.org/data
A Web of DataHubs of Authority
inSetting Context
The world’s libraries. Connected.
Amazon.com
WorldCat.org
My University
My Library
Wikipedia.org
The world’s libraries. Connected.
Scribe OPACCard Catalog
Web ofDataWeb
Building a Webof Data
The world’s libraries. Connected.
We all need to participate
Building a Webof Data
Linking to alland
all their resources
The world’s libraries. Connected.
Opportunity to
connect users
with our resources
The world’s libraries. Connected.
The world’s libraries. Connected.
ELAG 2014 – Bath, UK
The Power of Sharing Linked Data:Giving the Web What it Wants
Richard WallisOCLC Technology
Evangelist
@rjw
The world’s libraries. Connected.
Amy ElliottBert CousinsBob MurphyBob SchulzBrian WingerterBrook PauquetteBruce WashburnDaniel van SpanjeDiane Vizine-GoetzEd MacklinGail ThornburgGay MillerGeorgii ViznyukHugh Jamieson
Jason AshJean GodbyJeff MixterJeff YoungJenny TovesJim MichalkoJoanne CantrellJon FauseyJulie GayKanchitpol RatanapanKelly WombleLeonardo SimonLisa CoxLora Chappelear-PearsonMartin van Muyen
Production Release of WorldCat Works
April 2014Kudos to:
Marty LovelessMike TeetsPaul MossRich GreeneRich GreeneRichard WallisRoy TennantScott OrrShelley HostetlerStephan SchindehetteSteve MeyerTed FonsThom HickeyTod MatolaXiaoming Liu