oclc research lorcan dempsey vp research, oclc february 2004 (see next slide for where this...
TRANSCRIPT
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OCLC Research
Lorcan Dempsey
VP Research, OCLCFebruary 2004
(see next slide for where this presentation was given)
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Different versions of this presentation were given at the following meetings:
OCLC Australian Advisory CouncilMelbourne, February 1, 2004
National Library of Australia, Canberra, February 6, 2004
OCLC Members’ CouncilDublin, Ohio, February 9, 2004
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Overview
• MARC 21
• MARC-XML, MODS, Dublin Core, Onix, LOM
• EAD, TEI, DC, MARC
• METS, SCORM, DIDL, …
• DDI, FGDC, ..
• MARC AMC, EAD, DC, RSLP
• OAIS, METS, OCLC/RLG, …
• Z39.50, SRU/W, Xquery, …
• SOAP, WSDL, UDDI, …
• GIF, TIFF, PNG, JPEG, …
• XML, RDF, DAML+OIL, ..
• DDC, LCSH, LCC, TGN, AAT, …
• PURL, DOI, ISTC, URN, ERROL, POI, …
• XRML, ODRL, ..
• ZTHES, VDEX, TIF, ..
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Research possibilities …
• .. are endless!
• Becoming more complex as more activities enter a network space.
• Focus …– on maximizing impact of a limited
resource. – on where can make an internal and
external impact.– on making valuable work more visible– on engaging external partners in useful
collaboration.
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Overview
Collection and useranalysis
Interoperability
System &service architecture
Knowledgeorganization
Contentmanagement
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Collection and user analysis
• Change creates demand for better data.
• Growing interest in knowing more about:– Characteristics– Gaps and overlaps– Use
• Tuning collections based on data.
• Focus collection spending where creates most value.
The idea of the balanced—but unread—collection is disappearing.
Librarians cannot change user behavior so they need to meet the user.
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OR objectives
• Support better management decisions by– Making data work – Exploring user behaviors.
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Some projects
• Characteristics of collections– WorldCat– CIC
• Compare ILL, circulation and holdings data.
• Last copy: what is irreplaceable?
• ARL Global Resources.– Exploring coverage of overseas
titles in ARL libraries.
• Large scale user behavior study– IMLS
project with OSU and OCLC
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Comparing CIC Collection Profiles
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Content management
• Digital asset management a growing concern– Cultural heritage, special collections, …– Learning objects– Institutional repositories
• Issues– Repository selection and interoperability– Securing long term access to digital assets
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Content management
• Digital preservation– Economics of digital
preservation– Consensus making –
OCLC/RLG working groups
– Preservation metadata (PREMIS)
• Repository architectures– Contributions to
Dspace codebase to support its interoperability
OAI SRW
– Reference models IMS repository
interoperability
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System and service architecture
• The library systems environment is getting more complex– ILS– Digital asset
management– Resolution– Portal– Resource sharing– License management– Auth*
• Build, buy, opensource?
• Integration– Integrated workflow
Portal Cataloging …
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OR objectives
• Investigate new ways of structuring and viewing WorldCat and associated knowledge structures
• Exploit emerging technologies, open standards and protocols to prototype new services
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Some projects
• ‘Unplug and play’– Metadata schema
transformation– E-prints UK– Terminology
services– Name authority
services– XISBN
• Text searching– Fast searching on
Beowulf clusters
• Harvesting– NDLTD Union
Catalog
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Metadata schema transformation
Metadata schematranslator
Web services layer
Crosswalkrepository
client
Record translationclient
A transformed record
A record
A metadata crosswalk
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xISBN
• An experimental web service– Give it an ISBN, it returns all related ISBNs– Based on WorldCat– Designed for machine-to-machine data exchange
• Examples:– Check user ILL requests against all editions/versions in
OPAC– Find library’s editions when user finds any
edition/version of item on Amazon– Check OPAC for all editions during
selection/acquisitions/gift book processing
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Searchingfor the book on Amazon
Searchingfor the book on Amazon
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LibraryLookup bookmarklet
LibraryLookupLibraryLookup
http://www.amazon.co.uk/exec/obidos/ASIN/1860464955/qid=1075134526/sr=1-1/ref=sr_1_10_1/202-6426661-8213436
Is the book at my library?Is the book at my library?
SingleISBN
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xISBN bookmarklet
http://www.amazon.co.uk/exec/obidos/ASIN/1860464955/qid=1075134526/sr=1-1/ref=sr_1_10_1/202-6426661-8213436
xISBNserver
LibraryLookupLibraryLookup xISBNxISBN
Multiple ISBNs
ADDED
ADDED
ADDED
ADDED
ADDED
Is the book at my library?Is the book at my library?
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Knowledge organization and semantic web
"The Semantic Web is an extension of the current web in which information is given well-defined meaning, better enabling computers and people to work in cooperation." -- Tim Berners-Lee, James Hendler, Ora Lassila, The Semantic Web, Scientific American, May 2001
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Mmmm….
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OR objectives
• To release the value of the historical library investment in controlled vocabularies and knowledge structures– Redeploy tools for accessing or assigning
names, subjects, and classification numbers
– Make knowledge organization services more accessible.
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Projects
• FAST
• Terminology services
• FRBR
• Automatic classification
• VIAF – Virtual International Authority File– Library of Congress, Die Deutsche
Bibliothek
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FAST Geographic Search by Area
Avalon Lake
Bellaire, Lake
Charlevoix, Lake
Fletcher Pond
Munro Lake
Ocqueoc Lake
Bar 1Bay 5Bridge 1Channel 2Civil 23Forest 4Island 4Lake 6Park 10Ppl 92Stream 10
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Knowledge org systems
• Plethora of vocabularies
• Incompatible approaches to encoding
• Few connections– Education
GEM Subjects, ERIC Thesaurus, LCSH, CIP (Classification of instructional programs)
– Cultural Heritage AAT, Thesaurus for Graphic Materials (TGM) Subjects
& Genre Terms
• Not built for the web– Link to concepts
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Terminology services:‘Webulating’ knowledge organization
• The goal of this project is to offer accessible, modular, web-based terminology services.
• Make vocabularies more available for – Metadata creation– Searching– …
• Refine and extend mappings
• Represent vocabularies in major encoding standards, e.g., MARC, Zthes, TIF
• Prototype custom web services as appropriate
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2.6+ million fiction records from Worldcat, clustered by OCLC’s FRBR algorithm
Make greater use of data (genres, settings, imaginary characters, etc)
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Work display
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Work/expression display
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Work/expression/manifestation
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Interoperability
• Extract maximum value from investment in – Metadata– Content– Services
• By ensuring that they are – Sharable– Reusable– Recombinable
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OR objectives
• Provide leadership in Internet and information standardization
• Help to raise the visibility of the values and value of librarianship
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Some examples
• Dublin Core– Central to library,
cultural heritage and related communities.
– Harvested data: OAI– 8 Governments – Corporations and
NGOs
• Protocols– Z39.50, SRW/U, OAI,
Zthes
• Identifiers– INFO URI, PURL
• Registries– DCMI, OpenURL, Info
URI
• Everywhere …!
Cliff Lynch on Info URI: … it represents an important new step in collaboration ACROSS standards organizations, and … I think the work is of real importance to the CNI community.
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