Charper.lawdi.20130531

Linked Data: A Library, Archive &
Museum Perspective
Presented 2013-05-31
Linked Ancient World Data Institute
Corey A Harper
LLD, LOD-LAM, and Linking Scholarship

Linked Ancient World Data Institute2013-05-31 2
Publish Publish Publish!
http://www.ted.com/talks/tim_berners_lee_on_the_next_web.html

Library Metadata
●
Rich stores of MARC, MODS, Dublin Core, &c.
●
Robust Controlled Vocabularies
●
Subject Heading lists
●
Code lists
●
Thesauri
●
Existing & emerging data models:
●
FR*; Bibframe
●
Existing & emerging vocabularies:
●
RDA, Bibframe, Bibo, ISBD, MARC, Dublin Core

Linked Library Data Instance Data
• LIBRIS (Swedish Union Catalog)
• Library of Congress (LCSH, OSI)
• German National Library
• Hungarian National Library
• British Library

Library Authority Data
“Include links to other URIs. so that they can
discover more things.”
Short of providing and linking to URIs, this *is*
authority data.
This is what our authority files are for.

Library Controlled Vocabularies: Benefits
●
Reputation - Trusted Tradition
●
Mature - Time tested and carefully developed
●
General & Comprehensive - Cover large
knowledge spaces

LCSH in Dublin Core
• Encoding Scheme for DC Subject
• No easy way to draw on equivelent terms and
cross-references
• Abstract Model, RDF and SKOS are enabling
applications to make use of the whole
vocabulary

LCSH as a Web Service!
• Uses principles of linked data
• lcsh.info -> id.loc.gov
• People noticed when taken down
• Links to French Subject Headings
• URIs for Literal String lookup
• http://id.loc.gov/authorities/label/World Wide Web

Other Vocabularies
• Thesaurus for Economics
• French Subject Headings
• Swedish Subject Headings
• IconClass (not on web yet)
• OCLC Terminology Services
• Dewey Decimal Classification
• Virtual International Authority File (VIAF)
• Faceted Application of Subject Terminology
(FAST)
• Getty says AAT by years end...

Virtual International Authority File (VIAF)
• http://viaf.org/
• http://viaf.org/viaf/data
• 20+ Authority Files
• Map/Reduce in Hadoop
• ODC-By License
 For attribution at triple level, using OCLC
URI is sufficient

From LLD to LOD-LAM
●
“Linked Open Data – Libraries, Archives & Museums”
• Europeana: More than just Libraries:
●
15 million items from 1500 Institutions!
●
British Library, Rijksmuseum, Louvre
• LIAM: “planning for the application of linked data
approaches to archival description”
• LOCAH: Linked Open Copac & Archives Hub
●
Bibliographic + Archival Data

Europeana Project
●
Aggregation of Cultural Heritage Objects from
throughout Europe
●
Creating Linked Data for institutions
●
Data model builds on OAI-ORE
●
Creation of Virtual Exhibitions
●
Collectives Emerging to add content:
 http://www.linkedheritage.org/

LOCAH - Linked Open Copac Archives Hub
●
Archives Hub: Finding aids from over 200 Institutions in
the UK
●
JISC Project to model EAD as RDF
●
Well-modeled, structured data enables innovative uses
●
Timelines
●
Visualizations
●
Discoverability

W3C Library Linked Data Incubator Group
Recommendation 4.3.1: Design and test user
services based on Linked Data capabilities
“Experimental services using library Linked
Data should be undertaken in order to explore
potential use cases and inform the direction of
larger development efforts.”

Linking Lives
“utilizing external datasets in order to bring archives
together with other data sources”
“there is still a need to make a convincing argument
that Linked Data really will provide concrete
benefits to the end user.”
http://archiveshub.ac.uk/blog/?p=2699

Publish Publish Publish Publish...
“Don't “just” publish data,
try to think about actual uses,
for end users”
- Emmanuelle Bermes

http://thinkbase.cs.auckland.ac.nz/start.jsp

Google Knowledge Graph

RelFinder
http://www.visualdataweb.org/relfinder.php

Linked Jazz
http://linkedjazz.org/network/

Social Networks of Archival Context
Image From: http://inkdroid.org/journal/2010/08/12/archival-context-on-the-web/

Linking Lives – Screenshots from P. Johnston

LinkSailor: http://linksailor.com/nav

http://viewshare.org/

Context
Narrative
Story telling
The Library's story,
and the Archives story,
but also…

Users’ stories
Scholars' stories
Your stories
The Web's stories
Adding context through recombinant metadata
http://localhost:3000

A Possible Future for Libraries
• Collecting & managing metadata
• Identifying and creating relationsihps
• Collecting content and context
• Designing visualization tools
• Developing new infrastructure for you to:
 Support data management
 Support discovery
 Publish data, vocabularies

Open & Closed World Assumptions
• Closed World - Metadata patterns known, semantics
implicit
• Open World - Continual integration of heterogeneous
metadata
 Requires Self-Describing Data
 Linked Data Principles really useful here
http://www.w3.org/2001/tag/doc/selfDescribingDocuments

Edges Without Edges
• Distributed bibliographic control environment
 Linking Data
 Focus on identification over description
• “In short, by treating values as non-literal
resources and assigning URIs to them we give
ourselves (and others) the hooks on which to
hang further descriptions.” - Andy Powell

Thanks!
corey.harper@nyu.edu
212.998.2479
@chrpr

Charper.lawdi.20130531

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