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