A transformation from flat marc to lod ver02
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Transcript of A transformation from flat marc to lod ver02
A Transformation from Flat MARC to Linked Open Data
Ya-Ning ChenDepartment of Information and Library Science
Tamkang University, Taiwan
IO Talk Forum in National Central Library2016/09/30
Questions
• What is LOD?• How to transform MARC into LOD?• What is the function of RDA registry for transformation
during RDFization?• Has RDA registry manifested ied all contents of FRBR? • What are the potential functions and effects of
embedded in LOD clouds of bibliographic universe?• LOD versus Ontology• Why libraries have to convert MARC into LOD?
LOD
Image: http://commons.wikimedia.org/wiki/File:LOD_visualisatie_open_data_en_linked_data.png
Miller, P. (2010). Linked data horizon scan. Available at:http://cloudofdata.s3.amazonaws.com/FINAL-201001-LinkedDataHorizonScan.pdf
RDF Language and Model
• Triple structure and statement• Subject, Predicate and Object
Subject ObjectPredicate
SubjectPredicate
Literal
MARC Record
https://catalog.loc.gov/vwebv/holdingsInfo?searchId=12760&recCount=25&recPointer=0&bibId=18213486
RDFization-01Label ValueTitle Harry Potter and the goblet of fire (series 4)
Author J. K. Rowling
Illustrator Mary GrandPre
Edition First American edition
Publisher Arthur A. Levine Books
Publishing Place New York
Publishing Date 2000
Sequel Harry Potter and the Order of the Phoenix (series 5)
Sequel to Harry Potter and the prisoner of Azkaban (series 3)
Summary Fourteen-year-old Harry Potter joins the Weasleys at the Quidditch World Cup, then enters his fourth year at Hogwarts Academy where he is mysteriously entered in an unusual contest that challenges his wizarding skills, friendships and character, amid signs that an old enemy is growing stronger.
Subject Potter, Harry -- (Fictitious character)
Subject Granger, Hermione(Fictitious character) -- Juvenile fiction
Subject Wizards--Fiction
Subject England--Fiction
RDFization-02
J.K. Rowling
goblet of fire
Mary Grand Pre
Arthur A. Levine Books
2000
New York
Order of the
Phoenix
prisoner of
Azkaban
Harry Potter
Hermione Granger
Wizards--Fiction
Magic--Fiction
RDFization-03
J.K. Rowling
goblet of fire
Mary Grand Pre
Arthur A. Levine Books
2000
New York
Order of the
Phoenix
prisoner of
Azkaban
Is written by
Is illustrated by
Is published by Is located at
In/is published in
Hermione Granger
Wizards--Fiction
Is continued by
Is a character ofIs a subject of
The same thing is given with different semantic meaning or representation
https://www.youtube.com/watch?v=JGMEgDLZ4s0
RDA Registry-01
http://www.rdaregistry.info/
RDA Registry-02
• To standardize the name of properties between classes.
RDFization-04J.K.
Rowling
goblet of fire
Mary Grand Pre
Arthur A. Levine Books
2000
New YorkOrder of
the Phoenix
prisoner of
Azkaban
has authorW-A
has illustratorE-A
has publisherM-A
has place ofpublicationM
has a date ofpublicationM
is sequelW-W
is sequel toW-W
Harry Potter
is in seriesW-W
Hermione GrangerWizards--
Fiction
has subject ofhas character of
RDFization-05J.K.
Rowling
goblet of fire
Mary Grand Pre
Arthur A. Levine Books
2000
New YorkOrder of
the Phoenix
prisoner of
Azkaban
rdaw:P10061
rdae:P20051
rdam:P30083
rdam:P30088
rdam:P30011
rdaw:P10020
rdaw:P10227
Harry Potter
rdaw:P10080
Hermione GrangerWizards--
Fiction
has subject ofhas character of
RDFization-06J.K.
Rowling
goblet of fire
Mary Grand Pre
Arthur A. Levine Books
2000
New YorkOrder of
the Phoenix
prisoner of
Azkaban
has authorW-A
has illustratorE-A
has publisherM-A
has place ofpublicationM
has a date ofpublicationM
is sequelW-W
is sequel toW-W
Harry Potter
is in seriesW-W
Hermione GrangerWizards--
Fiction
has subject of
FRBR GRP1
FRBR GRP3
FRBR GRP 2
FRBR GRP3
FRBR GRP3
LOD Cloud-2014
http://linkeddatacatalog.dws.informatik.uni-mannheim.de/state/
The same thing can be aggregated with various perspectives together
https://www.youtube.com/watch?v=lkDSidUZtio
More aggregations
• Two additional MARC records were added into the aforementioned diagram– One is MARC record of the same novel which is
translated into traditional Chinese version– The other one is a film with the same novel’s title.
J.K. Rowling
goblet of fire
Novel
Mary Grand Pre
Arthur A. Levine Books
Is written by
Is illustrated by
Is published by
Hermione Granger
Emma Watson
Harry Potter
Daniel Radcliffe
火盃的考驗中文小說
J.K. 羅琳
goblet of fire Film
彭倩文Is translated by
皇冠Is published by
Warner Bros.
Pictures
Is published by
哈利波特
妙麗 · 格蘭傑Is a character of
Is a character of
Play a role as Is a actor of
Has as traditionalChinese version
Has as traditionalChinese name
J.K. 罗琳
J.K. Rowling
goblet of fire
Novel
Mary Grand Pre
Arthur A. Levine Books
Is written by
Is illustrated by
Is published by
Hermione Granger
Emma Watson
Harry Potter
Daniel Radcliffe
火盃的考驗中文小說
J.K. 羅琳
goblet of fire Film
彭倩文Is translated by
皇冠Is published by
Warner Bros.
Pictures
Is published by
哈利波特
妙麗 · 格蘭傑Is a character of
Is a character of
Play a role as Is a actor of
Has as traditionalChinese version
Has as traditionalChinese name
J.K. 罗琳
Direct link Existingin-direct link
Non-existingin-direct link
J.K. Rowling
goblet of fire
Novel
Mary Grand Pre
Arthur A. Levine Books
Is written by
Is illustrated by
Is published by
Hermione Granger
Emma Watson
Harry Potter
Daniel Radcliffe
火盃的考驗中文小說
J.K. 羅琳
goblet of fire Film
彭倩文Is translated by
皇冠Is published by
Warner Bros.
Pictures
Is published by
哈利波特
妙麗 · 格蘭傑Is a character of
Is a character of
Play a role as Is a actor of
Has as traditionalChinese version
Has as traditionalChinese name
J.K. 罗琳
Direct link Existingin-direct link
Non-existingin-direct link
Embedded Knowledge Structures
• What is explicit and implicit information embedded in the aforementioned LOD diagrams?
Semantic queries and answers-01
• Direct queries and answers (direct link)• In-direct queries and answers– Existing (existing in-direct link)– Non-existing (non-existing in-direct link)
FRBR based Ontology LDthrough by RDA Registry
• In addition to RDFization, semantic relationships between data should be built up based on semantic definitions, statements and associations provided by RDA Registry.
• An approach both of LD and Ontology• Coverage of RDA registry is not so
comprehensive, it needs to include more semantic definitions, statements and associations based on FRBR’s ontology and model.
LOD vs. OntologyLOD Ontology
Approach Bottom-up Top-down
Cost Fasters and low cost Slow and high cost
Scope Without boundary of discipline or domain
Stick with a specific discipline or domain
Strictness Four LD design principles freely• Identifier• http• RDF and SPARQL• Combination of other things
Much stricter with various requirements, including representation language/format, logic and agreement
Reuse Much easier More difficult
Other Inconsistent Consistent
Open Information Society• Linked Data
– Knowledge structures– Knowledge relationships– FRBR ontology based LD through by RDA registry
• Open Data– Unlock libraries’ MARC records from libraries’ boundary and publish
ontology based LD into Internet for the public in an open way.– Allow LD can be combined and aggregated with other LOD of
disciplines/domains.• Libraries LOD
– As a knowledge providers– Increase our collective impact on LOD communities globally
Reference
• Chen, Y.N. & Ke, H.R. (2013). FRBRoo-based approach to heterogeneous metadata integration. Journal of Documentation, 69(5), 623-637.
• Chen, Y.N. (2004). A Review on metadata registries development. Journal of Educational Media & Library Sciences, 41(3), 351-371. (in Chinese)
Thanks for your attention.