SlideShare a Scribd company logo
1 of 39
Ed Chamberlain Systems Development Librarian Cambridge University Library
Disclaimers … ,[object Object],[object Object],[object Object]
Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is the semantic web? ,[object Object],[object Object],[object Object]
Eh? ,[object Object],[object Object],[object Object]
What is Linked Data … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
And RDF ? ,[object Object],[object Object]
What does this mean in practice … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Most of a record … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Where is the linking exactly? ,[object Object],[object Object]
External linking ,[object Object],[object Object],[object Object]
Live demo … ,[object Object]
Meanwhile … ,[object Object],[object Object],[object Object],[object Object]
The Linking Open Data cloud diagram -  http : //richard . cyganiak .de/2007/10/lod /
What was COMET? ,[object Object],[object Object],[object Object],[object Object],[object Object]
What did COMET do … ,[object Object],[object Object],[object Object],[object Object],[object Object]
Why? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why - IPR ,[object Object],[object Object],[object Object],[object Object]
How – IPR ,[object Object],[object Object],[object Object]
How – IPR ,[object Object],[object Object],[object Object],[object Object]
 
What - IPR ,[object Object],[object Object],[object Object],[object Object]
IPR - What did we learn? ,[object Object],[object Object],[object Object]
How - data ,[object Object],[object Object],[object Object]
How  - marc problems ,[object Object],[object Object],[object Object],[object Object],[object Object]
How – data vocab ,[object Object],[object Object],[object Object],[object Object]
How - data publishing ,[object Object],[object Object],[object Object]
How – linking ,[object Object],[object Object]
Data - What did we learn ? ,[object Object],[object Object]
What else?
RDF friendly database ,[object Object],[object Object],[object Object]
How - SPARQL ,[object Object],[object Object],[object Object],[object Object]
How –storage and access ,[object Object],[object Object],[object Object],[object Object],[object Object]
Supporting tech -What did we learn? ,[object Object],[object Object],[object Object]
What does this mean for Ex Libris ,[object Object],[object Object],[object Object],[object Object],[object Object]
Always add value to RDF … ,[object Object],[object Object],[object Object],[object Object],[object Object]
Beyond bibliographic Bibliographic Holdings FAST subject headings Libraries Transactions Special collections Archives Creator / entity Place of publication LCSH subject  headings Course lists Language Librarians
Do what Tim said … ,[object Object],[object Object],[object Object],[object Object],[object Object]
Questions? ,[object Object],[object Object],[object Object]

More Related Content

What's hot

Introduction to the Semantic Web
Introduction to the Semantic WebIntroduction to the Semantic Web
Introduction to the Semantic WebTomek Pluskiewicz
 
Brief State of the Art - Semantic Web technologies for geospatial data - Mode...
Brief State of the Art - Semantic Web technologies for geospatial data - Mode...Brief State of the Art - Semantic Web technologies for geospatial data - Mode...
Brief State of the Art - Semantic Web technologies for geospatial data - Mode...Ana Roxin
 
RDF and Open Linked Data, a first approach
RDF and Open Linked Data, a first approachRDF and Open Linked Data, a first approach
RDF and Open Linked Data, a first approachhorvadam
 
From the Semantic Web to the Web of Data: ten years of linking up
From the Semantic Web to the Web of Data: ten years of linking upFrom the Semantic Web to the Web of Data: ten years of linking up
From the Semantic Web to the Web of Data: ten years of linking upDavide Palmisano
 
Resource description framework
Resource description frameworkResource description framework
Resource description frameworkStanley Wang
 
Linked Data for Czech Legislation
Linked Data for Czech LegislationLinked Data for Czech Legislation
Linked Data for Czech LegislationMartin Necasky
 
Building Linked Data Applications
Building Linked Data ApplicationsBuilding Linked Data Applications
Building Linked Data ApplicationsEUCLID project
 
Introduction to Linked Data Platform (LDP)
Introduction to Linked Data Platform (LDP)Introduction to Linked Data Platform (LDP)
Introduction to Linked Data Platform (LDP)Hector Correa
 
Introduction To RDF and RDFS
Introduction To RDF and RDFSIntroduction To RDF and RDFS
Introduction To RDF and RDFSNilesh Wagmare
 
Making the semantic web work
Making the semantic web workMaking the semantic web work
Making the semantic web workPaul Houle
 
WWW2014 Overview of W3C Linked Data Platform 20140410
WWW2014 Overview of W3C Linked Data Platform 20140410WWW2014 Overview of W3C Linked Data Platform 20140410
WWW2014 Overview of W3C Linked Data Platform 20140410Arnaud Le Hors
 
Introduction to the Semantic Web
Introduction to the Semantic WebIntroduction to the Semantic Web
Introduction to the Semantic WebMarin Dimitrov
 
Documents, services, and data on the web
Documents, services, and data on the webDocuments, services, and data on the web
Documents, services, and data on the webChiara Del Vescovo
 
The web of interlinked data and knowledge stripped
The web of interlinked data and knowledge strippedThe web of interlinked data and knowledge stripped
The web of interlinked data and knowledge strippedSören Auer
 
Build Narratives, Connect Artifacts: Linked Open Data for Cultural Heritage
Build Narratives, Connect Artifacts: Linked Open Data for Cultural HeritageBuild Narratives, Connect Artifacts: Linked Open Data for Cultural Heritage
Build Narratives, Connect Artifacts: Linked Open Data for Cultural HeritageOntotext
 

What's hot (20)

Introduction to the Semantic Web
Introduction to the Semantic WebIntroduction to the Semantic Web
Introduction to the Semantic Web
 
Brief State of the Art - Semantic Web technologies for geospatial data - Mode...
Brief State of the Art - Semantic Web technologies for geospatial data - Mode...Brief State of the Art - Semantic Web technologies for geospatial data - Mode...
Brief State of the Art - Semantic Web technologies for geospatial data - Mode...
 
RDF and Open Linked Data, a first approach
RDF and Open Linked Data, a first approachRDF and Open Linked Data, a first approach
RDF and Open Linked Data, a first approach
 
From the Semantic Web to the Web of Data: ten years of linking up
From the Semantic Web to the Web of Data: ten years of linking upFrom the Semantic Web to the Web of Data: ten years of linking up
From the Semantic Web to the Web of Data: ten years of linking up
 
Resource description framework
Resource description frameworkResource description framework
Resource description framework
 
.Net and Rdf APIs
.Net and Rdf APIs.Net and Rdf APIs
.Net and Rdf APIs
 
Semantic Web in Action
Semantic Web in ActionSemantic Web in Action
Semantic Web in Action
 
Linked Data for Czech Legislation
Linked Data for Czech LegislationLinked Data for Czech Legislation
Linked Data for Czech Legislation
 
Semantic web
Semantic webSemantic web
Semantic web
 
Building Linked Data Applications
Building Linked Data ApplicationsBuilding Linked Data Applications
Building Linked Data Applications
 
Introduction to Linked Data Platform (LDP)
Introduction to Linked Data Platform (LDP)Introduction to Linked Data Platform (LDP)
Introduction to Linked Data Platform (LDP)
 
Introduction To RDF and RDFS
Introduction To RDF and RDFSIntroduction To RDF and RDFS
Introduction To RDF and RDFS
 
Making the semantic web work
Making the semantic web workMaking the semantic web work
Making the semantic web work
 
WWW2014 Overview of W3C Linked Data Platform 20140410
WWW2014 Overview of W3C Linked Data Platform 20140410WWW2014 Overview of W3C Linked Data Platform 20140410
WWW2014 Overview of W3C Linked Data Platform 20140410
 
Introduction to the Semantic Web
Introduction to the Semantic WebIntroduction to the Semantic Web
Introduction to the Semantic Web
 
Documents, services, and data on the web
Documents, services, and data on the webDocuments, services, and data on the web
Documents, services, and data on the web
 
Linked (Open) Data
Linked (Open) DataLinked (Open) Data
Linked (Open) Data
 
The web of interlinked data and knowledge stripped
The web of interlinked data and knowledge strippedThe web of interlinked data and knowledge stripped
The web of interlinked data and knowledge stripped
 
Linked Open Data
Linked Open DataLinked Open Data
Linked Open Data
 
Build Narratives, Connect Artifacts: Linked Open Data for Cultural Heritage
Build Narratives, Connect Artifacts: Linked Open Data for Cultural HeritageBuild Narratives, Connect Artifacts: Linked Open Data for Cultural Heritage
Build Narratives, Connect Artifacts: Linked Open Data for Cultural Heritage
 

Similar to Linked data and voyager

State of the Semantic Web
State of the Semantic WebState of the Semantic Web
State of the Semantic WebIvan Herman
 
Lee Iverson - How does the web connect content?
Lee Iverson - How does the web connect content?Lee Iverson - How does the web connect content?
Lee Iverson - How does the web connect content?Museums Computer Group
 
20080917 Rev
20080917 Rev20080917 Rev
20080917 Revcharper
 
CSHALS 2010 W3C Semanic Web Tutorial
CSHALS 2010 W3C Semanic Web TutorialCSHALS 2010 W3C Semanic Web Tutorial
CSHALS 2010 W3C Semanic Web TutorialLeeFeigenbaum
 
Deploying PHP applications using Virtuoso as Application Server
Deploying PHP applications using Virtuoso as Application ServerDeploying PHP applications using Virtuoso as Application Server
Deploying PHP applications using Virtuoso as Application Serverwebhostingguy
 
Web 3 Mark Greaves
Web 3 Mark GreavesWeb 3 Mark Greaves
Web 3 Mark GreavesMediabistro
 
Linked data HHS 2015
Linked data HHS 2015Linked data HHS 2015
Linked data HHS 2015Cason Snow
 
Linked Data and Locah, UKSG2011
Linked Data and Locah, UKSG2011 Linked Data and Locah, UKSG2011
Linked Data and Locah, UKSG2011 Jane Stevenson
 
Corrib.org - OpenSource and Research
Corrib.org - OpenSource and ResearchCorrib.org - OpenSource and Research
Corrib.org - OpenSource and Researchadameq
 
Lifting the Lid on Linked Data
Lifting the Lid on Linked DataLifting the Lid on Linked Data
Lifting the Lid on Linked DataJane Stevenson
 
SemanticWeb Nuts 'n Bolts
SemanticWeb Nuts 'n BoltsSemanticWeb Nuts 'n Bolts
SemanticWeb Nuts 'n BoltsRinke Hoekstra
 
20100614 ISWSA Keynote
20100614 ISWSA Keynote20100614 ISWSA Keynote
20100614 ISWSA KeynoteAxel Polleres
 
Virtuoso, The Prometheus of RDF -- Sematics 2014 Conference Keynote
 Virtuoso, The Prometheus of RDF -- Sematics 2014 Conference Keynote Virtuoso, The Prometheus of RDF -- Sematics 2014 Conference Keynote
Virtuoso, The Prometheus of RDF -- Sematics 2014 Conference KeynoteKingsley Uyi Idehen
 
Semantic Web - Lecture 09 - Web Information Systems (4011474FNR)
Semantic Web - Lecture 09 - Web Information Systems (4011474FNR)Semantic Web - Lecture 09 - Web Information Systems (4011474FNR)
Semantic Web - Lecture 09 - Web Information Systems (4011474FNR)Beat Signer
 
Understanding RDF: the Resource Description Framework in Context (1999)
Understanding RDF: the Resource Description Framework in Context  (1999)Understanding RDF: the Resource Description Framework in Context  (1999)
Understanding RDF: the Resource Description Framework in Context (1999)Dan Brickley
 

Similar to Linked data and voyager (20)

State of the Semantic Web
State of the Semantic WebState of the Semantic Web
State of the Semantic Web
 
Lee Iverson - How does the web connect content?
Lee Iverson - How does the web connect content?Lee Iverson - How does the web connect content?
Lee Iverson - How does the web connect content?
 
20080917 Rev
20080917 Rev20080917 Rev
20080917 Rev
 
CSHALS 2010 W3C Semanic Web Tutorial
CSHALS 2010 W3C Semanic Web TutorialCSHALS 2010 W3C Semanic Web Tutorial
CSHALS 2010 W3C Semanic Web Tutorial
 
Comet project
Comet projectComet project
Comet project
 
Deploying PHP applications using Virtuoso as Application Server
Deploying PHP applications using Virtuoso as Application ServerDeploying PHP applications using Virtuoso as Application Server
Deploying PHP applications using Virtuoso as Application Server
 
Web 3 Mark Greaves
Web 3 Mark GreavesWeb 3 Mark Greaves
Web 3 Mark Greaves
 
Linked data HHS 2015
Linked data HHS 2015Linked data HHS 2015
Linked data HHS 2015
 
Linked Data and Locah, UKSG2011
Linked Data and Locah, UKSG2011 Linked Data and Locah, UKSG2011
Linked Data and Locah, UKSG2011
 
Corrib.org - OpenSource and Research
Corrib.org - OpenSource and ResearchCorrib.org - OpenSource and Research
Corrib.org - OpenSource and Research
 
Web Topics
Web TopicsWeb Topics
Web Topics
 
Lifting the Lid on Linked Data
Lifting the Lid on Linked DataLifting the Lid on Linked Data
Lifting the Lid on Linked Data
 
Digital Libraries of the Future
Digital Libraries of the Future
Digital Libraries of the Future
Digital Libraries of the Future
 
SemanticWeb Nuts 'n Bolts
SemanticWeb Nuts 'n BoltsSemanticWeb Nuts 'n Bolts
SemanticWeb Nuts 'n Bolts
 
20100614 ISWSA Keynote
20100614 ISWSA Keynote20100614 ISWSA Keynote
20100614 ISWSA Keynote
 
Virtuoso, The Prometheus of RDF -- Sematics 2014 Conference Keynote
 Virtuoso, The Prometheus of RDF -- Sematics 2014 Conference Keynote Virtuoso, The Prometheus of RDF -- Sematics 2014 Conference Keynote
Virtuoso, The Prometheus of RDF -- Sematics 2014 Conference Keynote
 
Semantic Web - Lecture 09 - Web Information Systems (4011474FNR)
Semantic Web - Lecture 09 - Web Information Systems (4011474FNR)Semantic Web - Lecture 09 - Web Information Systems (4011474FNR)
Semantic Web - Lecture 09 - Web Information Systems (4011474FNR)
 
Hacia la Internet del Futuro: Web Semántica y Open Linked Data, Parte 2
Hacia la Internet del Futuro: Web Semántica y Open Linked Data, Parte 2Hacia la Internet del Futuro: Web Semántica y Open Linked Data, Parte 2
Hacia la Internet del Futuro: Web Semántica y Open Linked Data, Parte 2
 
Linked Data
Linked DataLinked Data
Linked Data
 
Understanding RDF: the Resource Description Framework in Context (1999)
Understanding RDF: the Resource Description Framework in Context  (1999)Understanding RDF: the Resource Description Framework in Context  (1999)
Understanding RDF: the Resource Description Framework in Context (1999)
 

Recently uploaded

An overview of the various scriptures in Hinduism
An overview of the various scriptures in HinduismAn overview of the various scriptures in Hinduism
An overview of the various scriptures in HinduismDabee Kamal
 
Championnat de France de Tennis de table/
Championnat de France de Tennis de table/Championnat de France de Tennis de table/
Championnat de France de Tennis de table/siemaillard
 
The Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDFThe Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDFVivekanand Anglo Vedic Academy
 
Improved Approval Flow in Odoo 17 Studio App
Improved Approval Flow in Odoo 17 Studio AppImproved Approval Flow in Odoo 17 Studio App
Improved Approval Flow in Odoo 17 Studio AppCeline George
 
diagnosting testing bsc 2nd sem.pptx....
diagnosting testing bsc 2nd sem.pptx....diagnosting testing bsc 2nd sem.pptx....
diagnosting testing bsc 2nd sem.pptx....Ritu480198
 
When Quality Assurance Meets Innovation in Higher Education - Report launch w...
When Quality Assurance Meets Innovation in Higher Education - Report launch w...When Quality Assurance Meets Innovation in Higher Education - Report launch w...
When Quality Assurance Meets Innovation in Higher Education - Report launch w...Gary Wood
 
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUMDEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUMELOISARIVERA8
 
Dementia (Alzheimer & vasular dementia).
Dementia (Alzheimer & vasular dementia).Dementia (Alzheimer & vasular dementia).
Dementia (Alzheimer & vasular dementia).Mohamed Rizk Khodair
 
Analyzing and resolving a communication crisis in Dhaka textiles LTD.pptx
Analyzing and resolving a communication crisis in Dhaka textiles LTD.pptxAnalyzing and resolving a communication crisis in Dhaka textiles LTD.pptx
Analyzing and resolving a communication crisis in Dhaka textiles LTD.pptxLimon Prince
 
How to Manage Closest Location in Odoo 17 Inventory
How to Manage Closest Location in Odoo 17 InventoryHow to Manage Closest Location in Odoo 17 Inventory
How to Manage Closest Location in Odoo 17 InventoryCeline George
 
Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community PartnershipsSpring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community Partnershipsexpandedwebsite
 
e-Sealing at EADTU by Kamakshi Rajagopal
e-Sealing at EADTU by Kamakshi Rajagopale-Sealing at EADTU by Kamakshi Rajagopal
e-Sealing at EADTU by Kamakshi RajagopalEADTU
 
BỘ LUYỆN NGHE TIẾNG ANH 8 GLOBAL SUCCESS CẢ NĂM (GỒM 12 UNITS, MỖI UNIT GỒM 3...
BỘ LUYỆN NGHE TIẾNG ANH 8 GLOBAL SUCCESS CẢ NĂM (GỒM 12 UNITS, MỖI UNIT GỒM 3...BỘ LUYỆN NGHE TIẾNG ANH 8 GLOBAL SUCCESS CẢ NĂM (GỒM 12 UNITS, MỖI UNIT GỒM 3...
BỘ LUYỆN NGHE TIẾNG ANH 8 GLOBAL SUCCESS CẢ NĂM (GỒM 12 UNITS, MỖI UNIT GỒM 3...Nguyen Thanh Tu Collection
 
philosophy and it's principles based on the life
philosophy and it's principles based on the lifephilosophy and it's principles based on the life
philosophy and it's principles based on the lifeNitinDeodare
 
SPLICE Working Group: Reusable Code Examples
SPLICE Working Group:Reusable Code ExamplesSPLICE Working Group:Reusable Code Examples
SPLICE Working Group: Reusable Code ExamplesPeter Brusilovsky
 
UChicago CMSC 23320 - The Best Commit Messages of 2024
UChicago CMSC 23320 - The Best Commit Messages of 2024UChicago CMSC 23320 - The Best Commit Messages of 2024
UChicago CMSC 23320 - The Best Commit Messages of 2024Borja Sotomayor
 
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文中 央社
 

Recently uploaded (20)

Mattingly "AI and Prompt Design: LLMs with Text Classification and Open Source"
Mattingly "AI and Prompt Design: LLMs with Text Classification and Open Source"Mattingly "AI and Prompt Design: LLMs with Text Classification and Open Source"
Mattingly "AI and Prompt Design: LLMs with Text Classification and Open Source"
 
An overview of the various scriptures in Hinduism
An overview of the various scriptures in HinduismAn overview of the various scriptures in Hinduism
An overview of the various scriptures in Hinduism
 
Championnat de France de Tennis de table/
Championnat de France de Tennis de table/Championnat de France de Tennis de table/
Championnat de France de Tennis de table/
 
The Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDFThe Story of Village Palampur Class 9 Free Study Material PDF
The Story of Village Palampur Class 9 Free Study Material PDF
 
Improved Approval Flow in Odoo 17 Studio App
Improved Approval Flow in Odoo 17 Studio AppImproved Approval Flow in Odoo 17 Studio App
Improved Approval Flow in Odoo 17 Studio App
 
diagnosting testing bsc 2nd sem.pptx....
diagnosting testing bsc 2nd sem.pptx....diagnosting testing bsc 2nd sem.pptx....
diagnosting testing bsc 2nd sem.pptx....
 
When Quality Assurance Meets Innovation in Higher Education - Report launch w...
When Quality Assurance Meets Innovation in Higher Education - Report launch w...When Quality Assurance Meets Innovation in Higher Education - Report launch w...
When Quality Assurance Meets Innovation in Higher Education - Report launch w...
 
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUMDEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
DEMONSTRATION LESSON IN ENGLISH 4 MATATAG CURRICULUM
 
Dementia (Alzheimer & vasular dementia).
Dementia (Alzheimer & vasular dementia).Dementia (Alzheimer & vasular dementia).
Dementia (Alzheimer & vasular dementia).
 
Mattingly "AI and Prompt Design: LLMs with NER"
Mattingly "AI and Prompt Design: LLMs with NER"Mattingly "AI and Prompt Design: LLMs with NER"
Mattingly "AI and Prompt Design: LLMs with NER"
 
Analyzing and resolving a communication crisis in Dhaka textiles LTD.pptx
Analyzing and resolving a communication crisis in Dhaka textiles LTD.pptxAnalyzing and resolving a communication crisis in Dhaka textiles LTD.pptx
Analyzing and resolving a communication crisis in Dhaka textiles LTD.pptx
 
How to Manage Closest Location in Odoo 17 Inventory
How to Manage Closest Location in Odoo 17 InventoryHow to Manage Closest Location in Odoo 17 Inventory
How to Manage Closest Location in Odoo 17 Inventory
 
Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community PartnershipsSpring gala 2024 photo slideshow - Celebrating School-Community Partnerships
Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships
 
e-Sealing at EADTU by Kamakshi Rajagopal
e-Sealing at EADTU by Kamakshi Rajagopale-Sealing at EADTU by Kamakshi Rajagopal
e-Sealing at EADTU by Kamakshi Rajagopal
 
IPL Online Quiz by Pragya; Question Set.
IPL Online Quiz by Pragya; Question Set.IPL Online Quiz by Pragya; Question Set.
IPL Online Quiz by Pragya; Question Set.
 
BỘ LUYỆN NGHE TIẾNG ANH 8 GLOBAL SUCCESS CẢ NĂM (GỒM 12 UNITS, MỖI UNIT GỒM 3...
BỘ LUYỆN NGHE TIẾNG ANH 8 GLOBAL SUCCESS CẢ NĂM (GỒM 12 UNITS, MỖI UNIT GỒM 3...BỘ LUYỆN NGHE TIẾNG ANH 8 GLOBAL SUCCESS CẢ NĂM (GỒM 12 UNITS, MỖI UNIT GỒM 3...
BỘ LUYỆN NGHE TIẾNG ANH 8 GLOBAL SUCCESS CẢ NĂM (GỒM 12 UNITS, MỖI UNIT GỒM 3...
 
philosophy and it's principles based on the life
philosophy and it's principles based on the lifephilosophy and it's principles based on the life
philosophy and it's principles based on the life
 
SPLICE Working Group: Reusable Code Examples
SPLICE Working Group:Reusable Code ExamplesSPLICE Working Group:Reusable Code Examples
SPLICE Working Group: Reusable Code Examples
 
UChicago CMSC 23320 - The Best Commit Messages of 2024
UChicago CMSC 23320 - The Best Commit Messages of 2024UChicago CMSC 23320 - The Best Commit Messages of 2024
UChicago CMSC 23320 - The Best Commit Messages of 2024
 
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文
 

Linked data and voyager

  • 1. Ed Chamberlain Systems Development Librarian Cambridge University Library
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14. The Linking Open Data cloud diagram - http : //richard . cyganiak .de/2007/10/lod /
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.  
  • 22.
  • 23.
  • 24.
  • 25.
  • 26.
  • 27.
  • 28.
  • 29.
  • 31.
  • 32.
  • 33.
  • 34.
  • 35.
  • 36.
  • 37. Beyond bibliographic Bibliographic Holdings FAST subject headings Libraries Transactions Special collections Archives Creator / entity Place of publication LCSH subject headings Course lists Language Librarians
  • 38.
  • 39.

Editor's Notes

  1. Thank you /// So Hello, as an introduction, I’m very much a Systems Librarian, management of LMS is may bread and butter, but this was a great chance to do something very different …
  2. Just a Systems Librarian – this time last year my understanding at the start of linked data was limited to Talis demonstrations … Been to a lot of conferences and seen a lot of guys in back polos necks telling me that this is the future … Apologies if you see the semantic web as up there with quantum mechanics … Will contain some techy stuff Not actually that much on Voyager, although we will talk about what a next (current?) generation LMS could do in terms of RDF publishing
  3. Semantic = meaning explained (to machines) – so we would see a 245, and know to display it as a title. We would need to programme a computer specifically to work that out, it has with Marc21 no real way to discover it itself. That is the purpose of semantic or ‘self describing’ data. Hyperlinked = meaning contextualised elsewhere – use a common set of descriptions For machines as much as people – That is the grand theory – web pages for people – semantic data for machines.
  4. So after about 10 years of various approaches, An approach referred to as Linked Data looks like an emerging framework for the semantic web with some heavyweights behind it… Use URIs as names for things Use HTTP URIs so that people can look up those names When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL) Include links to other URIs, so that they can discover more things
  5. Conversely Here is a description of RDF – Resource Description Framework it’s a set of metadata encapsulation standards. Does not need to be linked, but often is. (Go back) Note that RDF is not mentioned except in brackets. Other data can be linked, as long as it follows these conventions. We can have unlinked RDF data and linked non -RDF data … So, RDF is not the be all and end all of linked data, but it’s the most commonly used mechanism right now so I’ll probably use both terms interchangably which might annoy some types But we did linked RDF (or attempted to …) and for the purposes of this presentation, the two terms are somewhat interchangeable …
  6. So lets take a look at some. The n-triple notation format is the simplest means of expressing RDF triples. Earch triple is described in one line. RDF is in its purest form is data described as triples, each a statement in three parts A subject (the person or thing being described) A predicate (affirming what feature of the subject is being described) An object (the descriptive term itself)
  7. Combine several triples and we can see what looks like a bib record But the data extends beyond the record as a composite entity through links to other sets of triples
  8. Big growth in cultural heritage
  9. No talk on linked data is complete without this image …
  10. Respond to academic / national demand for Open Data – University of Southampton - Bibliography is a key stepping stone into teaching, learning research. Reading lists, personal bibliographies, group research. Getting this data openly available in standardised formats is a real world win Tax-payer value-for-money –they pay for this data to be created, lets give it back in some other form than an OPAC CUL already provides public APIs, this seems like natural progression Gain in-house experience of RDF – see how hard it can be. A lot of RDF projects tend to outsource to people like Talis, I really wanted to chart the in-house learning process. Move library services forward – we need to be in the world of linked data however it ends up – we also need greater flexibility in record re-use as we go forward with new forats - Have been well argued …
  11. RDF works best with a permissive license – its now generally accepted that permissive licenses and bib data are a good thing Para-phrasing Paul Ayris "open bibliographic data offers chance for anyone to re-use the data to build innovative services“ CC0 or Public Domain Data License Non-commercial licenses not suitable – look at University and research funding now - what is non-commercial exactly? No NC license defines commercial activity, it actually creates more doubt, puts people off. Could building a free website based on our data and then running ads alongside it to be seen as commercial? Probably, would it deprive us of revenue or users, probably not. Consensus is not to go there with data… Permissive approach creates potential conflict with record vendors – not outright conflict, RLUK and OCLC –they are valid partners, the UL’s cataloguing team of 100+could not work if either organisation folded, its in our interests to keep them alive. For context, RLUK were behind the JISC Discovery programme, and OCLC acted as an invaluable partner with us on the project
  12. See if there were any expressive contractual clauses saying we could not redistribute
  13. Where does a record come from ? – practically quite hard to determine … Several places in Marc21 where this data could be held … Logic for examination Attempt at scripted analysis – list bib_ids by record vendor
  14. All on the project blog along with some comprehensive explanation of methodology …
  15. Most vendors happy with permissive license for ‘non-marc21’ formats - Non marc thing is not an issue in this context, no one outside of library land cares about a load of binary encoded numbers … we are re-purposing Marc originated data for a wider audience RLUK / BL BNB – PDDL OCLC – ODC-By Attribution license No good reason not to re-publish – need the right license!
  16. What did we learn Marc actually made it really difficult, hence the diagram Better container formats could have sown this up With a national / international mandate to open up data, we need a better container format other than Marc to go forward. No good reason not to re-publish – need the right license!
  17. Several attempts at conversion – settled on SQL extracts based on lists of bib_ids Use Perl scripting to ‘munge’ the data, quite dirty nasty coding around Marc files You can try this at home ! Scripts available for Voyager SQL extraction and standalone batch file conversion.
  18. Marc21 – data rich, semantically poor. Designed to print out cards for display. Never really got past that. Hard to generate granular items of data for linking (i.e. triples). A lot is lost. Data is binary encoded, hard to transfer via modern web services - needs specialised code libraries to crack, XML and JSON are the way forward here Numbers as field names – why do we need this in 2011? It’s a dark art, bears no relation to the rest of the real world - makes it very hard for external developers To come in and do this kind of work - needs specialised knowledge and is developer underfiendly Bad characters – bane of any software developer – XML encoding and validation would deal with this problem Replication – as we’ve seen above, four fields serving effectively the same purpose Over one hundred notes fields? Come on …
  19. RDF allows you to freely mix vocabularies – choices of fields to describe your data Emerging consensus on bibliographic description - thankfully no-one is attempting to recreate Marc, mainly a use of Qualified Dublin Core, FOAF Our conversion script is CSV customisable BL and others leading the way on vocab choice – they did some great data modelling, which we stayed clear of
  20. PHP script to match text against LOC subject headings – enrich with LOC GUID FAST / VIAF enrichment courtesy of OCLC FAST – next generation subject headings – very exciting VIAF – Virtual International Authority File OCLC want to develop these as linked services, keen to help.
  21. Marc / AACR2 cannot translate will to semantically rich formats Need better container / transfer standards (not necessarily RDF)
  22. Scaling issues
  23. Triplestores are cumbersome SPARQL alone does not do the trick – need faster, easier indexes covering data. One of the advantages of the Talis platform is that they can do this … High entry barrier to RDF is partly a result of these accompanying technologies – as much as the confusion and complexity around the data
  24. Building whole systems around RDF is not really a good idea – thankfully they are not doing this Need the flexibility to do this by dropping Marc21 as an internal storage format – Thankfully they are doing this - plenty of other ways to get at data RDF works best on the side, as a separate machine friendly view of data. Ensure any RDF publishing capacity is flexible (as ours is) RDF capability for Primo ?
  25. Standalone RDF is just fiddly Dublin Core, so … Create httpd uris for things so they have a permenant name on the web – really exciting Link it to something useful (LOC, FAST, VIAF) Don’t limit to the bibliographic – if records describe music or film, link to IMDB, Wikipedia or some domain specific authority … We have a chance to break out of the library bubble here…
  26. Use URIs as names for things Use HTTP URIs so that people can look up those names When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL) Include links to other URIs, so that they can discover more things Away from RDF, triplestores, MArc21 035s and licensing issues, these four points are conceptually the right approach for linked data, or any data that exists on the web