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![Page 1: Technical Advances for Innovation in Cultural Heritage Institutions (TAI CHI) Webinar Series 5 November 2015 How You Can Make the Transition from MARC.](https://reader035.fdocuments.net/reader035/viewer/2022062315/5697bfc51a28abf838ca6c35/html5/thumbnails/1.jpg)
Technical Advances for Innovation in Cultural HeritageInstitutions (TAI CHI) Webinar Series5 November 2015
How You Can Make the Transition from MARC to Linked Data Easier
Jean Godby and Karen Smith-YoshimuraOCLC Research
#oclcresearch#linkeddata
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To make linked data work, we need…
Good data!
Structured, accurate, unambiguous, actionable and can be linked to
other data.
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From records to entities
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From records to things: ‘Work’
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From records to things: ‘Person’
Mockup
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Title: Journey to the WestLanguage: EnglishTranslator: Anthony C. YuDate: 1977IsTranslationOf:
Title: Journey to the WestLanguage: EnglishTranslator: W. J. F. JennerDate: 1982-1984IsTranslationOf:
Title: 西遊記Language: ChineseAuthor: 吳承恩Created: 1592HasTranslation:
Title: Tay du ky binh khaoLanguage: VietnameseTranslator: Phan QuanDate: 1980IsTranslationOf:
Title: 西遊記Language: JapaneseTranslator: 中野美代子Date: 1986IsTranslationOf:
Title: Monkeys PilgerfahrtLanguage: GermanTranslator: Georgette Boner Date: 1983IsTranslationOf:
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# Original Work (in Chinese)<http://worldcat.org/entity/work/id/1215997>
a schema:CreativeWork; schema:creator <http://viaf.org/viaf/102266649> ; # "Gao,
Xingjian” schema:inLanguage "zh"; schema:name "靈山 "@zh-hant.
# Translated Work (in English)<http://worldcat.org/entity/work/id/145209748>
a schema:CreativeWork; schema:creator <http://viaf.org/viaf/102266649> ; # "Gao, Xingjian“ schema: translator <http://viaf.org/viaf/81663420> ; # "Lee, Mabel" schema:inLanguage "en"; schema:name "Soul Mountain"@en ; schema:translationOfWork <http://worldcat.org/entity/work/id/1215997>
Markup for the Semantic Web
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Even the best algorithms still need manual intervention
Split off the “Murakami Haruki” with same romanization; different romanizations of same title also resulted in non-match.
These still need to be merged.
Originally 3 clusters each fora different title but by the same author
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EXAMPLES
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Mockup
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Mockup
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Language code of original
Original title entry
Uniform title
Added entry for translator, with role term
A good example
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Without added entries, we must parse the 245 $c for translator in different languages
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Nice! Added entries for translators – with role
term
Also nice! Intermediate translation coded (Vietnamese
translation from the French translation of the Danish)
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Distinguish translations into the same language by translator
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Jan 2015: 20,108,253 WorldCat records with a 700 $e included for translators:
Free text is unreliable
30,574,365 records with 700 $4: 1,148,813 had code trl
• 305,143 Tł• 238,839 translator.• 217,074 tr• 179,368 ÜY bers. • 162,510 Traduction. • 138,471 trad.• 136,569 yi.• 22,947 Trad.
68% of 700 fields have no $e or $4
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A sound recording
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PersonYo-Yo Ma
PersonBobby
McFerrin
CreativeWork
CreativeWork
Organization
schema:performer
‘Manifestation’
‘Work’
schema:exampleOfWork
schema:contributor
The first-draft linked data model
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More evidence for the model
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A good example
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A good example
No redundant role data
Plenty of 700 fields
Specific field semantics and easily parsed text
An obvious primary creator
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Some parsing results
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Organization“Columbia Records”
schema:publisher
MusicEvent, CreativeWork“Charles Mingus and friends”
schema:workPerfomed
Person“Charles Mingus”
schema:creator
Person“Dizzie Gillespie”
Person“Joe Chambers”
Person“Bill Cosby”
schema:performer
Person“Milt Hinton”
Person“Charles Mingus”
drumshost
vocals
bass
bass
CreativeWork,Music Album
A more expressive model
schema:encodesCreativeWork
CreativeWork,sound recording
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• Use uniform titles • Use added entries with role codes (7xx and $4)• Use 041 for translations, including intermediate translations• Use indicators to refine the meaning
• Use the most specific fields appropriate for a descriptive task
• Minimize the use of 500 fields• Obey field semantics• Avoid redundancy
If you must use free text:• Use established conventions• Use standardized terms
Least machine-processable
Most machine-processable
Algorithmically recoverable
Our recommendations
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To make linked data work, we need…
Good data!
Structured, accurate, unambiguous, actionable and can be linked to
other data.
![Page 30: Technical Advances for Innovation in Cultural Heritage Institutions (TAI CHI) Webinar Series 5 November 2015 How You Can Make the Transition from MARC.](https://reader035.fdocuments.net/reader035/viewer/2022062315/5697bfc51a28abf838ca6c35/html5/thumbnails/30.jpg)
RESOURCES
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http://www.oclc.org/research/themes/data-science.html
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For more information• Godby, Carol Jean, and Ray Denenberg. 2015. Common Ground: Exploring
Compatibilities Between the Linked Data Models of the Library of Congress and OCLC. Dublin, Ohio: Library of Congress and OCLC Research.http://www.oclc.org/content/dam/research/publications/2015/oclcresearch-loc-linked-data-2015.pdf
• Godby, Carol Jean, Shenghui Wang and Jeffrey K. Mixter. 2015. Library Linked Data in the Cloud: OCLC’s Experiments with New Models of Resource Description. Morgan & Claypool. http://www.morganclaypool.com/toc/wbe.1/1/1
• Godby, Carol Jean. “A Division of Labor: The Role of Schema.org in in a Semantic Web Model of Library Resources.” In Missing Links (Ed Jones, editor). ALA Publications. In press.
• RDA. 2015. “RDA Element Sets: Expression Properties.” http://www.rdaregistry.info/Elements/e/
• Van Malssen, Kara. 2014. BIBFRAME AV Modeling Study: Defining a Flexible Model for Description of Audiovisual Resources. http://www.loc.gov/bibframe/pdf/bibframe-avmodelingstudy-may15-2014.pdf.
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SM
Together we make breakthroughs possible.
Thank you!
Contact: Karen Smith-Yoshimura
Technical Advances for Innovation in Cultural HeritageI nstitutions (TAI CHI) Webinar Series
5 November 2015
Jean [email protected] [email protected]
@KarenS-Y
©2015 OCLC. This work is licensed under a Creative Commons Attribution 4.0 International License. Suggested attribution: “This work uses content from How You Can Make the Transition from MARC to Linked Data Easier © OCLC, used under a Creative Commons Attribution 4.0 International License: http://creativecommons.org/licenses/by/4.0/.”