Transcript VIAF and WorldCat/WorldCat identities. Improving works and

VIAF Council Meeting, Singapore, 2013-08-16
Improving works and expressions in VIAF
VIAF and
WorldCat/WorldCat
Identities.
Janifer Gatenby
OCLC
The world’s libraries. Connected.
Please note:
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IFLA, Singapore, 2013-08-19
Multilingual WorldCat
presented by Janifer Gatenby
Karen Smith Yoshimura
Eric Childress
Robert Bremer
Janifer Gatenby
JD Shipengrover
Jean Godby
Gail Thornburg
Richard Greene
Jenny Toves
Diane Vizine Goetz
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Jay Weitz
WorldCat Today
• Resources in nearly
all languages
• Contributed by more
than 20,000 libraries
worldwide
• More than half the
database is for works
not in English
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WorldCat Today
• Bibliographic Records
• Hybrid records
• Parallel records
• Clustered at Work
level (FRBR)
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Existing Architecture
Subj
Subj
Classif
Subj
Classif
Classif
Author
Author
s
s
Authors
Holdin
Holdin
g
g
Holdings
Bibliographic
record
Work
cluster
Content
cluster
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Manifes
tation
cluster
Complementary Initiatives
GLIMIR
Manifestation
& Content
Clusters
Work Level
Record
Multi-lingual
Bibliographic
Structure
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Work Level Record
http://www.oclc.org/research/activities/workrecs.html
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Work Level Record: Objective
Create a landing
page summarizing
content for a work
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GLIMIR
• The Content Cluster
• Enables better work record displays by reducing the number of lines that display
for large works
• Enables a choice of format and presents the formats that could be acceptable
substitutes
• Consolidates holdings for identical content
• The Manifestation Cluster is important
• Consolidates holdings at manifestation level
• In the short term allows the record catalogued in the language of the interface to
be chosen for display
• Reduces apparent duplication
• Allows a more accurate count of the number of manifestations in WorldCat (as
opposed to the number of records)
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Multilingual Bibliographic Structure Project
Creates true multi-lingual displays
• At work and manifestation levels
• Using all available data instead of “most appropriate
record”
• Generates data
Corrects many of the 28 million records coded “und”
Better control and linking of translations
Input to refinement of work clusters
Smarter data storage
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“Most appropriate” questioned
• Worldcat.org selects the most appropriate record
to show to a user as representative of the work in
the short result list and beyond
• The end result will not be very satisfactory from a
multi-lingual viewpoint… here’s why
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Which record is better to present to a German speaker?
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Incomplete Swedish Record
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Hybrid record
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Most appropriate display
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Multilingual Bibliographic Structure Project
• Work level data, mined from all associated
bibliographic records will be displayed
supplemented with expression / manifestation
level data as the user drills through the short to
fuller versions of the metadata.
End user interface will show works and manifestations not bibliographic
records; the cataloguing client will also show bibliographic records
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Proposed new architecture
eng
ger
jpn
eng
Author
Author
s
s
Authors
oNotes
fre
fre
Contents
++
jpn
ger
Subj
Subj
Classif
fre
sif
Holdin
Holdin
g
g
Holding
jpn
eng
Work
eng
fre
ger
jpn
fre
ger
Translations
(Language of work)
Manif
Manif
eng
Manif
eng
eng
Manif
engManif
eng
jpn
Holdin
g
Holding
ger
fre
eng
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Manif
Manif
eng
fre
Important principles
• Language tagging of elements, particularly
• Summaries (M21 520)
• Subject headings
• Display in script preferred by the user if data is
available
• Improve translated interfaces
• Show consolidated holdings as appropriate
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Translations
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Great works are translated
• The cream of the world’s cultural and knowledge
heritage is shared by being translated
• WorldCat contains many rich cataloguing records
for these translations
GOAL: Data mine the really good records to
improve clustering, presentation, authority
records and linked data
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Translations
• Inconsistencies causing work clusters to be
incomplete & less than optimal search results
• Titles without subtitles
• Different forms of uniform title or missing uniform title
• Inverted title
• Different coding of original and translated information
Generated uniform title authority records will overcome most of these
differences without needing to edit individual records
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Generate uniform title authority records
• Improve FRBR work groups
• Made by data mining
• Contribute to VIAF
• Diffuse via VIAF as linked data
• Possibility to create web page / web service
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Translation records in VIAF
• Will enrich VIAF significantly
• New elements - translated title and translator
Author
Title
Expressions in VIAF
Translation count in
WorldCat
Atwood
Blind assassin
8
31
Guevara
Notas de viaje
0
11
Hawking
Grand design
0
18
Lenard
Grosse naturforscher
1
3
Loti
Pêcheur d’Islande
1
31
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Diffusion of Translation records
• Records are freely available to the world from
VIAF in
• MARC-21
• XML
• RDF (linked data)
• Just links in JSON
• And other formats as introduced
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We don’t know now, but soon will
• # of manifestations as
opposed to # of records
• # of works that have
translations
• Top translated authors
and works
• And more 
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