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http://www.niso.org/news/events/2013/webinars/linked_data

NISO Webinar:
Library Linked Data:
From Vision to Reality
December 11, 2013

Speakers:
Jon Voss - Strategic Partnerships Director, We Are What We Do
Matt Miller - Front End Developer, NYPL Labs at the New York Public Library
Silvia Southwick - Digital Collections Metadata Librarian, UNLV University
Libraries
Cory Lampert - Head, Digital Collections , UNLV University Libraries
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
Linked Jazz
Revealing the
relationships of the
jazz community

Matt Miller
@thisismmiller
December 2013
Project Overview
• Investigating the application of Linked Open Data
to enhance the discovery and visibility of digital
cultural heritage materials.
• Build new methods of connecting cultural data.
• Uncover meaningful connections between
documents and data related to the personal and
professional lives of musicians who often practice
in rich and diverse social networks.
Professor Cristina Pattuelli at the Pratt Institute School of Library Information Science is the
director of the project which began in 2011.
Linked Data Now!
Why?
• Bootstrap your project with existing data.
• Highlights knowledge you have created and
knowledge that is missing.
• Facilitates sharing, but also growing your own
project.
Bootstrapping – Identifying

Research Question
How can we discover and analyze
the rich and diverse network of
relationships between jazz
musicians?

Primary Sources
Oral history interview transcripts
of jazz musicians.
Bootstrapping – Identifying

Research Question
How can we discover and analyze
the rich and diverse network of
relationships between jazz
musicians?

Primary Sources
Oral history interview transcripts
of jazz musicians.

We need to know the names
(and variants) of jazz
musicians in a structured
controlled vocabulary.
Bootstrapping – Identifying

Charlie Parker
Many different LOD datasets contain this
information. We need to access, query and link it
for only jazz related individuals.
Bootstrapping – Querying
Bootstrapping – Querying
• Processing the DBpedia dataset resulted in around
9,000 URIs.
– DBpedia is fluid! After each release (currently 3.9) we
reprocess the files resulting in the addition of 500-700
URIs.

• We now have a name directory, but we want
additional forms of personal names. To accomplish
this we try mapping to Library of Congress.
• Matching DBpedia and LC URIs is not automatic.
Bootstrapping – Mapping
• We matched identities based on:
• Name
• Life Dates
• White listed words found in sources
(http://www.loc.gov/mads/rdf/v1#Source)
• Reconciling authorities is difficult!
• Use others work: http://viaf.org/viaf/data/
• But don’t discount your own processes.
• Using our relatively simple process we
were able to match about 1500 more URIs
than VIAF.org.
• This is due to a smaller domain (jazz).
Our name directory creation and authority
matching is documented:
https://github.com/thisismattmiller/linkedjazz-name-directory
Bootstrapping – Curating

http://linkedjazz.org/public_demo_mapping/
Bootstrapping – Review
• Start small, think big.
– Specific subject domain.
– Large infrastructure not required (triple stores, etc.)
• Can get started with extract files and python scripting.

• Reuse as much as possible, but try new processes
leveraging domain specificity.
• Always be curating, use tools to facilitate process but
a human hand is often required.
Applying the Data
• Use the name directory to locate individuals in
the interview transcript.
• This project phase involves 50 transcripts.
• Because the names are tied to URIs we can
infer a relationship triple between two
individuals.
<foaf:Person> <rel:knowsOf> <foaf:Person>
Applying the Data
Transcript Analyzer
Transcript Analyzer
• An interface to curate the transcripts and verify
detected names.
• Implements off the shelf NLP (NLTK) to attempt
to locate additional names not in our directory as
well as corporate names and locations.
• Global rule system, as we process more
transcripts the system is being trained.
• Using URIs to represent entities we can quickly
see where we are discovering new material.
– 50 Transcripts
• 1800 person entities tagged.
• 250 names tagged without authoritative URI.
– Knowledge Creation
New Dataset
• We have created a new LOD dataset now of
jazz musician’s relationships.
• Our next steps are:
– Visualize.
– Further qualify the rel:knowsOf relationships.
– Provide access to the data created.
Visualize

http://linkedjazz.org/network/
Qualify Relationships – 52nd St.
• Recruit jazz experts and enthusiasts to help
categorize relationships based on transcript
text.
• We use existing vocabularies to build the data
set: Foaf, Relationship Vocabulary, Music
Ontology
• The interface is critical for crowdsourcing tools,
we work with user experience experts and
conduct user studies to refine our public facing
tools
Qualify Relationships – 52nd St.

http://linkedjazz.org/52ndStreet/
Provide Access
• We provide a SPARQL endpoint.
• But also a traditional API:
– http://linkedjazz.org/api/
– Can return:
• JSON
• N-Triples
• Gephi graph files (GXEF)
Learn and Grow as a Team
• Experience through doing.
• Empower graduate
students with skills and
practical experience
working with a LOD
project.
• Use the project as a
vehicle to make intra- and
inter-intuitional
collaborations.

Linked Jazz Team July 2013
Next Steps
• Refactor our prototype tools into sustainable open
source projects.
• Redesign 52nd St. based on user study groups.
• Work on emerging collaborations with Jazz Centers.
Thanks!

http://www.linkedjazz.org
Linked, Exposed Data: UNLV
Linked Data Project
NISO Webinar: Library Linked Data: From Vision to
Reality
December 11, 2013

Silvia B. Southwick
Digital Collections Metadata Librarian
UNLV Libraries

Cory K. Lampert
Head, Digital Collections
UNLV Libraries
Agenda
•
•
•
•
•
•

Motivation
Environment
UNLV Linked Data project
Technologies
Transforming metadata into linked data
Next steps
How it Started
•
•
•
•

Conferences and “buzz”
Curiousity and professional development
Exploration and pilot project
Compelling results; sharing impact of what
we’ve learned
• Assessment
• Much more to do...
Current Practice
• Data (or metadata) encapsulated in records
• Records contained in collections
• Very few links are created within and/or across
collections
• Links have to be manually created
• Existing links do not specify the nature of the
relationships among records
This structure hides potential links within and
across collections
What we can do with linked data
•
•
•
•
•
•

Free data from silos
Expose relationships
Powerful, seamless, interlinking of our data
Users interact or query data in new ways
Search results would be more precise
Data can be easily repurposed
Making the Case for Linked Data in
Academic Library Digital Collections
– Problem: Rich metadata is being lost in dumbed down
DC records
– Issue: Investment and resource allocation (Item-level
philosophy)
– Goal: Increased: exposure, collaboration, and
openness

– Outcome: Increased discovery and user-focus
Gaining Buy In
Administration
• Innovative project, high impact
• Pilot, experiment, learn by doing, share results
Staff
• We already have the metadata; We need to
transform them into triples
• Managing change
Graphical Representation: One
Record
Examples of records
December 12,
1915

title
Implications (Internal)
• Cross-unit collaboration is necessary
• Staff expertise will evolve
• Staff roles will change to accommodate new /
parallel workflow
• Data clean-up will be an investment
• Management of data becomes critical
• Discovery issues = user interfaces still need
development
Implications (External)
• Publish data from our collections in the Linked
Data Cloud to improve discoverability and
connections with other related data sets on
the Web
• Sharing data in new ways with new partners
may raise new issues
• Need to engage with linked data community
for technologies, tools, best practices, and to
demand library vendor support for LOD.
UNLV Linked Data Project
Goals:
• Study the feasibility of developing a common
process that would allow the conversion of our
collection records into linked data preserving
their original expressivity and richness
• Publish data from our collections in the Linked
Data Cloud to improve discoverability and
connections with other related data sets on the
Web
PROJECT IMPLEMENTATION
Actions
Prepare data
Export data

Import data
Clean data
Reconcile
Generate
triples
Export RDF

Import data
Publish

Technologies
CONTENTdm

Open Refine

Mulgara /
Virtuoso
Prepare / Export Data
Technology: CONTENTdm
• Increase consistency across collections:
– metadata element labels
– use of CV, share local CVs
– etc.

• Export data as spreadsheet
Create mapping between metadata elements and
EDM model predicates
OpenRefine
• Open source
• It is a server – can communicate with other
datasets via http

• Open Refine and its RDF extension should be
installed
Screenshots to show some of the functions we have
used
OpenRefine first screen
NISO Webinar: Library Linked Data: From Vision to Reality
Facets
NISO Webinar: Library Linked Data: From Vision to Reality
Split multi-value cells
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
Facet view for
Graphic Elements
after splitting
Reconciliation
Specifying Reconciliation service
Activating Reconciliation
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
Creating a Skeleton
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
Exporting RDF files
Actions
Prepare data
Export data

Import data
Clean data
Reconcile
Generate
triples
Export RDF

Import data
Publish
Query

Technologies
CONTENTdm

Open Refine

Mulgara /
Virtuoso
Mulgara Triple Store: Import
A simple SPARQL query

Select *
where
{ ?s ?p ?o} limit
100
NISO Webinar: Library Linked Data: From Vision to Reality
SPARQL: Querying Data

• Using Virtuoso PivotViewer
Query
Costume Design
Drawings

Showgirls
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
NISO Webinar: Library Linked Data: From Vision to Reality
Next steps for the UNLV project
• Transform all digital collections into linked data
(parallel structure)
• Increase linkage with other datasets
• Design interfaces to access and display our data
and related data from other datasets
• Evaluate alternative interfaces from user’s
perspective
• Produce a cost benefit analysis to inform future
plans for the development of digital collections
Thank You!
Questions?
NISO Webinar:
Library Linked Data: From Vision to Reality

Questions?
All questions will be posted with presenter answers on
the NISO website following the webinar:
http://www.niso.org/news/events/2013/webinars/linked_data

NISO Webinar • December 11, 2013
THANK YOU
Thank you for joining us today.
Please take a moment to fill out the brief online survey.
We look forward to hearing from you!

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NISO Webinar: Library Linked Data: From Vision to Reality

  • 1. http://www.niso.org/news/events/2013/webinars/linked_data NISO Webinar: Library Linked Data: From Vision to Reality December 11, 2013 Speakers: Jon Voss - Strategic Partnerships Director, We Are What We Do Matt Miller - Front End Developer, NYPL Labs at the New York Public Library Silvia Southwick - Digital Collections Metadata Librarian, UNLV University Libraries Cory Lampert - Head, Digital Collections , UNLV University Libraries
  • 80. Linked Jazz Revealing the relationships of the jazz community Matt Miller @thisismmiller December 2013
  • 81. Project Overview • Investigating the application of Linked Open Data to enhance the discovery and visibility of digital cultural heritage materials. • Build new methods of connecting cultural data. • Uncover meaningful connections between documents and data related to the personal and professional lives of musicians who often practice in rich and diverse social networks. Professor Cristina Pattuelli at the Pratt Institute School of Library Information Science is the director of the project which began in 2011.
  • 82. Linked Data Now! Why? • Bootstrap your project with existing data. • Highlights knowledge you have created and knowledge that is missing. • Facilitates sharing, but also growing your own project.
  • 83. Bootstrapping – Identifying Research Question How can we discover and analyze the rich and diverse network of relationships between jazz musicians? Primary Sources Oral history interview transcripts of jazz musicians.
  • 84. Bootstrapping – Identifying Research Question How can we discover and analyze the rich and diverse network of relationships between jazz musicians? Primary Sources Oral history interview transcripts of jazz musicians. We need to know the names (and variants) of jazz musicians in a structured controlled vocabulary.
  • 85. Bootstrapping – Identifying Charlie Parker Many different LOD datasets contain this information. We need to access, query and link it for only jazz related individuals.
  • 87. Bootstrapping – Querying • Processing the DBpedia dataset resulted in around 9,000 URIs. – DBpedia is fluid! After each release (currently 3.9) we reprocess the files resulting in the addition of 500-700 URIs. • We now have a name directory, but we want additional forms of personal names. To accomplish this we try mapping to Library of Congress. • Matching DBpedia and LC URIs is not automatic.
  • 88. Bootstrapping – Mapping • We matched identities based on: • Name • Life Dates • White listed words found in sources (http://www.loc.gov/mads/rdf/v1#Source) • Reconciling authorities is difficult! • Use others work: http://viaf.org/viaf/data/ • But don’t discount your own processes. • Using our relatively simple process we were able to match about 1500 more URIs than VIAF.org. • This is due to a smaller domain (jazz). Our name directory creation and authority matching is documented: https://github.com/thisismattmiller/linkedjazz-name-directory
  • 90. Bootstrapping – Review • Start small, think big. – Specific subject domain. – Large infrastructure not required (triple stores, etc.) • Can get started with extract files and python scripting. • Reuse as much as possible, but try new processes leveraging domain specificity. • Always be curating, use tools to facilitate process but a human hand is often required.
  • 91. Applying the Data • Use the name directory to locate individuals in the interview transcript. • This project phase involves 50 transcripts. • Because the names are tied to URIs we can infer a relationship triple between two individuals. <foaf:Person> <rel:knowsOf> <foaf:Person>
  • 94. Transcript Analyzer • An interface to curate the transcripts and verify detected names. • Implements off the shelf NLP (NLTK) to attempt to locate additional names not in our directory as well as corporate names and locations. • Global rule system, as we process more transcripts the system is being trained. • Using URIs to represent entities we can quickly see where we are discovering new material. – 50 Transcripts • 1800 person entities tagged. • 250 names tagged without authoritative URI. – Knowledge Creation
  • 95. New Dataset • We have created a new LOD dataset now of jazz musician’s relationships. • Our next steps are: – Visualize. – Further qualify the rel:knowsOf relationships. – Provide access to the data created.
  • 97. Qualify Relationships – 52nd St. • Recruit jazz experts and enthusiasts to help categorize relationships based on transcript text. • We use existing vocabularies to build the data set: Foaf, Relationship Vocabulary, Music Ontology • The interface is critical for crowdsourcing tools, we work with user experience experts and conduct user studies to refine our public facing tools
  • 98. Qualify Relationships – 52nd St. http://linkedjazz.org/52ndStreet/
  • 99. Provide Access • We provide a SPARQL endpoint. • But also a traditional API: – http://linkedjazz.org/api/ – Can return: • JSON • N-Triples • Gephi graph files (GXEF)
  • 100. Learn and Grow as a Team • Experience through doing. • Empower graduate students with skills and practical experience working with a LOD project. • Use the project as a vehicle to make intra- and inter-intuitional collaborations. Linked Jazz Team July 2013
  • 101. Next Steps • Refactor our prototype tools into sustainable open source projects. • Redesign 52nd St. based on user study groups. • Work on emerging collaborations with Jazz Centers.
  • 103. Linked, Exposed Data: UNLV Linked Data Project NISO Webinar: Library Linked Data: From Vision to Reality December 11, 2013 Silvia B. Southwick Digital Collections Metadata Librarian UNLV Libraries Cory K. Lampert Head, Digital Collections UNLV Libraries
  • 104. Agenda • • • • • • Motivation Environment UNLV Linked Data project Technologies Transforming metadata into linked data Next steps
  • 105. How it Started • • • • Conferences and “buzz” Curiousity and professional development Exploration and pilot project Compelling results; sharing impact of what we’ve learned • Assessment • Much more to do...
  • 106. Current Practice • Data (or metadata) encapsulated in records • Records contained in collections • Very few links are created within and/or across collections • Links have to be manually created • Existing links do not specify the nature of the relationships among records This structure hides potential links within and across collections
  • 107. What we can do with linked data • • • • • • Free data from silos Expose relationships Powerful, seamless, interlinking of our data Users interact or query data in new ways Search results would be more precise Data can be easily repurposed
  • 108. Making the Case for Linked Data in Academic Library Digital Collections – Problem: Rich metadata is being lost in dumbed down DC records – Issue: Investment and resource allocation (Item-level philosophy) – Goal: Increased: exposure, collaboration, and openness – Outcome: Increased discovery and user-focus
  • 109. Gaining Buy In Administration • Innovative project, high impact • Pilot, experiment, learn by doing, share results Staff • We already have the metadata; We need to transform them into triples • Managing change
  • 113. Implications (Internal) • Cross-unit collaboration is necessary • Staff expertise will evolve • Staff roles will change to accommodate new / parallel workflow • Data clean-up will be an investment • Management of data becomes critical • Discovery issues = user interfaces still need development
  • 114. Implications (External) • Publish data from our collections in the Linked Data Cloud to improve discoverability and connections with other related data sets on the Web • Sharing data in new ways with new partners may raise new issues • Need to engage with linked data community for technologies, tools, best practices, and to demand library vendor support for LOD.
  • 115. UNLV Linked Data Project Goals: • Study the feasibility of developing a common process that would allow the conversion of our collection records into linked data preserving their original expressivity and richness • Publish data from our collections in the Linked Data Cloud to improve discoverability and connections with other related data sets on the Web
  • 117. Actions Prepare data Export data Import data Clean data Reconcile Generate triples Export RDF Import data Publish Technologies CONTENTdm Open Refine Mulgara / Virtuoso
  • 118. Prepare / Export Data Technology: CONTENTdm • Increase consistency across collections: – metadata element labels – use of CV, share local CVs – etc. • Export data as spreadsheet Create mapping between metadata elements and EDM model predicates
  • 119. OpenRefine • Open source • It is a server – can communicate with other datasets via http • Open Refine and its RDF extension should be installed Screenshots to show some of the functions we have used
  • 122. Facets
  • 127. Facet view for Graphic Elements after splitting
  • 138. Actions Prepare data Export data Import data Clean data Reconcile Generate triples Export RDF Import data Publish Query Technologies CONTENTdm Open Refine Mulgara / Virtuoso
  • 140. A simple SPARQL query Select * where { ?s ?p ?o} limit 100
  • 142. SPARQL: Querying Data • Using Virtuoso PivotViewer
  • 148. Next steps for the UNLV project • Transform all digital collections into linked data (parallel structure) • Increase linkage with other datasets • Design interfaces to access and display our data and related data from other datasets • Evaluate alternative interfaces from user’s perspective • Produce a cost benefit analysis to inform future plans for the development of digital collections
  • 150. NISO Webinar: Library Linked Data: From Vision to Reality Questions? All questions will be posted with presenter answers on the NISO website following the webinar: http://www.niso.org/news/events/2013/webinars/linked_data NISO Webinar • December 11, 2013
  • 151. THANK YOU Thank you for joining us today. Please take a moment to fill out the brief online survey. We look forward to hearing from you!

Notes de l'éditeur

  1. Introduce SelfNYPL RoleLinked Jazz Role as a developer, a practical look at how we used linked data in our project and why
  2. Guiding principle of the project is to develop practical and applicable ways to use linked data.Not some far off ideal, there are practical applications of it right now.
  3. The General layout of a project, research questions and primary documents
  4. Data remediation still required.