W3C Library Linked Data Incubator Group

W3C Library Linked Data Incubator Group Antoine Isaac Vrije Universiteit Amsterdam Europeana Talis Open Day: Linked Data and Libraries, London, July 21st 2010

Let’s start with references
Landmark Linked Data implementations by library actors
Swedish National Library’s Libris catalogue and thesaurus
Library of Congress’ vocabularies, including LCSH
DNB’s Gemeinsame Normdatei
BnF’s RAMEAU subject headings
OCLC’s DDC classification and VIAF
NL of Hungary’s catalogue and thesauri
Also relevant!
STW economy thesaurus
Social Science thesaurus
GEMET environmental thesaurus
Agrovoc
New York Times subject headings
Scientific publications
libris.kb.se/ id.loc.gov/ d-nb.info/gnd/ stitch.cs.vu.nl/rameau/ dewey.info/ viaf.org/ oszkdk.oszk.hu/resource/DRJ/404 zbw.eu/stw lod.gesis.org eionet.europa.eu/gemet aims.fao.org/ data.nytimes.com/ (among others) dblp.rkbexplorer.com/

Linked Library Cloud beginning 2008 [Ross Singer, Code4Lib2010] http://code4lib.org/conference/2010/singer

Linked Library Cloud mid-2010
Plus:
Germany NL
Hungary NL
STW
GEMET
NYT
Agrovoc
[Ross Singer, Code4Lib2010] http://code4lib.org/conference/2010/singer

Useful tooling
Available
Dublin Core
SKOS
BIBO
OAI-ORE
...
In progress
RDA vocabularies
[email_address]
dublincore.org/ www.w3.org/2004/02/skos/ bibliontology.com/ www.openarchives.org/ore/ metadataregistry.org/rdabrowse.htm

2010, Year 1 of library linked data?

Libraries and LD, the perfect match?
Libraries have been producing metadata for ages
Libraries (often) produce high-quality metadata

Libraries and LD, the perfect match?
Library metadata is still locked in records
While it does maintain links to the outside world
Bibliographic and web references
Shared vocabularies
Same books!

Unleash library data!

Johan Stapel, Koninklijke Bibliotheek A dream at the Dutch National Library

But there are obstacles

Emerging best practices?
What vocabularies are being used, and is there emerging consensus about which to use?
What licenses (if any) are associated with the data?
How much linking and interlinking is going on?
What sorts of mechanisms does the publisher offer for getting the data: sitemap, feeds, SPARQL, bulk download?
What is the quality of the data: granularity, link integrity, vocabulary usage.
What approaches to identifiers for “real world things” have publishers taken: hash, slash, 303, PURLs, reuse of traditional identifiers, etc.
What are the relative sizes of the pools of library linked data?
How are updates being managed?
Ed Summers http://inkdroid.org/journal/2010/04/18/research-ideas-for-library-linked-data/

Connecting to more general LD Issues
Mike Uschold’s “semantic elephants”
Proliferation of URIs, Managing Coreference
Overloading owl:sameAs
Versioning and URIs
http://lists.w3.org/Archives/Public/public-lod/2010May/0012.html

Also, gospel is needed

What’s this I hear about the Semantic Web ?
What is the Semantic Web?
What does it have to do with bibliography?
Does it make life better for patrons?
Does it strengthen libraries?
Is it practical?
Where can we get some?
http://www.slideshare.net/stuartweibel/semantic-web-technologies-changing-bibliographic-descriptions

Determine use case & business models
Libraries may just publish data, but they can do more
Connect library data to other data
Integrate data from external sources in library systems
Crowdsourcing?
Potential data consumers deserve some help, too

Linking strategy
Links to library-originated sources
VIAF, LCSH, DDC, UDC
RDA vocabularies
Worldcat, TEL
Links to resources from the “natural environment”
Museums, archives
Scientific communities: bibliographic data & research data
Publishers
Europeana and other aggregators

Need for charting the LLD landscape

W3C incubator (XG) activity
Short-lived working groups: 1 year
Light administration burden
Not W3C Recommendations, but “innovative ideas for specifications, guidelines, and applications that are not (or not yet) clear candidates as Web standards”
Deliverables are, but XGs can trigger further W3C work
http://www.w3.org/2005/Incubator/

Example XGs
Provenance
Multimedia semantics
Social Web
…

LLD Steps
Preparing a charter
Initial chairs: Tom Baker, Emmanuelle Bermès, Antoine Isaac
10 W3C initiating members
Aalto University Helsinki
DERI Galway
Competence Centre for Interoperable Metadata (KIM)
Library of Congress
Los Alamos National Laboratory
MIMOS
OCLC
Talis
University of Applied Sciences Potsdam
Vrije Universiteit Amsterdam

To help increase global interoperability of library data on the Web, by
bringing together people involved in Semantic Web activities —focusing on Linked Data—in the library community and beyond,
building on existing initiatives , and
identifying collaboration tracks for the future .
http://www.w3.org/2005/Incubator/lld/charter

Activities
Gathering use cases and case studies demonstrating successful implementation of Semantic Web technologies in libraries and related sectors
Fostering collaboration among actors (libraries, museums, archives, publishers) interested in porting cultural assets to the Linked Data Web
Identifying relevant data models, vocabularies and ontologies and ways to build or improve interoperability among them
Identifying the need for the elaboration of new standards, guidelines & best practices
Identifying the areas of (Semantic) Web technology that could benefit from the expertise of the communities represented in the Group
Proposing a relevant scope and organization for work that follows on the initial effort carried by the Group.

Planned deliverables
Report presenting the landscape of Linked data development in the library domain and related sectors, including:
A use-case document that describes a number of real-world use cases, case studies, outreach and dissemination initiatives targeted to the library community and related sectors
A document that describes relevant technology pieces , including vocabularies and ontologies (e.g., SKOS), with the intended goal to identify extension or interoperability requirements, and help determine what other standards may be needed.

Charter – leaving scope open
The incubator group has been initiated by actors from national libraries, university libraries and research units, library vendors companies and other interested stakeholders. Its scope is however not limited to libraries as institutions , but is meant to involve other cultural heritage institutions , partners from the publishing industry , and other relevant domains .
Potential Links with other communities
W3C eGovernment Interest Group
EDItEUR
Semuse
…

Charter – leaving scope open
The Incubator could contribute feedback and ideas re. other W3C area
Experience in modeling and publishing data…

LLD Steps
Preparing a charter
Launch XG
May 21 st 2010: http://www.w3.org/News/2010#entry-8803

LLD Steps
Preparing a charter
Launch XG
Get participants
43 participants
20 W3C member organizations
10 invited experts

Complete list at http://www.w3.org/2000/09/dbwg/details?group=44833&public=1

Steps
Preparing a charter
Launch XG
Get participants
Start work!
Use cases and case studies
Issue list

Case Template
Background and Current Practice
Goal
Use Case Scenario
Application of linked data for the given use case
Problems and Limitations
Library Linked Data Dimensions / Topics
Plus other optional references
http://www.w3.org/2005/Incubator/lld/wiki/Use_Case_Template

First Cases
Authority data enrichment
http://www.w3.org/2005/Incubator/lld/wiki/Use_Case_Authority_Data_Enrichment
Digital preservation
http://www.w3.org/2005/Incubator/lld/wiki/Use_Case_Digital_Preservation

Coming Case Work
Contributions from XG participants
And from the wider community
Calls for cases will be issued, stay tuned!
http://www.w3.org/2005/Incubator/lld/wiki/UseCases

Current LLD Issue List
Conceptual Models
FR family, SKOS, non-bibliographic/authority data
Applying SemWeb Technology to Library Data
Handling legacy data, available vocabularies (ontologies)
Semantic Web/LD “Environmental Issues”
Identifiers, linking across datasets
Management and distribution of data
Hosting, preservation, updates, web architecture
Community and Management Issues
Outreach, strategic guidance & business models, licenses
http://www.w3.org/2005/Incubator/lld/wiki/Topics

Participate?

Core Incubator work
Participation to the LLD Incubator is still open
Teleconferences and work on deliverables
http://www.w3.org/2005/Incubator/lld/
Everyone can follow our work without participating
Publicly readable LLD XG wiki
http://www.w3.org/2005/Incubator/lld/wiki/
Publicly readable LLD XG mailing list
http://lists.w3.org/Archives/Public/public-xg-lld/

Outside the LLD XG
We try to provide spaces to the wider LLD community
LLD community wiki
http://www.w3.org/2001/sw/wiki/LLD
LLD community mailing list
http://lists.w3.org/Archives/Public/public-lld/
Twitter hashtag
#lldata

Thanks!
[email_address]

Pictures
http://www.flickr.com/photos/nationalarchives/3048286070/
http://www.europeana.eu/portal/record/04031/2D6FEB34557045A39A1D62761DAE00FEAF8B48F0.html
http://www.europeana.eu/portal/record/03903/8C5C6AEFF6B50DCCEDF6A23A99DD3A2D66AEB2CC.html
http://www.europeana.eu/portal/record/03903/1C123C986FDEBFCD0E307AFF8969F07F95BFCA49.html
http://www.europeana.eu/portal/record/03903/78FA3F8B4299B45C25C395345D3D16ED24EA7F4F.html
http://www.europeana.eu/portal/record/04031/CBF262142EAC88529CAA8F8D8A6969B72F8D3541.html
http://www.europeana.eu/portal/record/03903/95D8DA53C17F227BD27BCC148F79238FD6E2443E.html
(Europeana links give access to resources on original sites)

W3C Library Linked Data Incubator Group

by Antoine Isaac

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