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Yes, we can!. Some observations on library linked data. kcoyle@kcoyle.net. What is the answer?. kcoyle@kcoyle.net. What is the question?. kcoyle@kcoyle.net. What do we do?. kcoyle@kcoyle.net. Why do we do it?. kcoyle@kcoyle.net. Cataloging. Distinguish Differentiate Separate.
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Yes, we can! • Some observations on library linked data kcoyle@kcoyle.net
What is the answer? kcoyle@kcoyle.net
What is the question? kcoyle@kcoyle.net
What do we do? kcoyle@kcoyle.net
Why do we do it? kcoyle@kcoyle.net
Cataloging Distinguish Differentiate Separate kcoyle@kcoyle.net
Cataloging Distinguish Differentiate Separate kcoyle@kcoyle.net
Is this the same book?OrIs this a different book? kcoyle@kcoyle.net
"Books are a slow conversation" Each one listens to others and talks to others. kcoyle@kcoyle.net
Today's tools and models • MARC (at the end of its life) kcoyle@kcoyle.net
Today's tools and models • MARC (at the end of its life) • FRBR (a model, but based on past practices; unstable) • RDA (based on FRBR and AACR and MARC, with some new concepts). kcoyle@kcoyle.net
Cutter's questions What books does the library have by this author? What books does the library have on this topic? Does the library have a book with this title? kcoyle@kcoyle.net
Tomorrow's questions Starting with this author, what authors are related to him/her through their subject matter? Which are closest to this author? Who else was writing in this time in this place? Given this subject, who are the key authors? kcoyle@kcoyle.net
Day after tomorrow's questions Where does this subject lead me? What resources (library or outside of library)? What are related subjects? Information about the subject (encyclo/wiki/pedia) kcoyle@kcoyle.net
What is further? Semantic web – ending the library data silo Navigation and discovery instead of search Computable data – ability to mine bibliographic data for information.. kcoyle@kcoyle.net
Linking is not destructive kcoyle@kcoyle.net
Reorganize around new entities Persons Subjects kcoyle@kcoyle.net
Entities can interact Persons Subjects kcoyle@kcoyle.net
http://openlibrary.org Open Library kcoyle@kcoyle.net
Everything is connected to something • No (or few) dead ends • Computation is "easy" (e.g. topic maps, term clouds, timelines) • Users can discover previously unseen connections between information resources.
Back to our tools FR's – FRBR, FRAD, FRSAD RDA kcoyle@kcoyle.net
Perfect, or perfected?Not yet kcoyle@kcoyle.net
FRBR Person Work Corp Expression Event Manifestation Concept Place Item Object kcoyle@kcoyle.net
FRBR Person Work Corp Expression Event Manifestation Concept Place Item Object kcoyle@kcoyle.net
FRBR – bibliographic relationships Work Work Expression Expression Manifestation Item kcoyle@kcoyle.net
http://kcoyle.net/rda kcoyle@kcoyle.net
Some issues - FRBR Not well understood Untested, mostly unimplemented Superceded by FRAD, FRSAD, and now requiring changes to be compatible May not interact well with non-FRBR data. kcoyle@kcoyle.net
More issues - FRBR Group 3 (Subjects) should be replaced with a general subject relationship to anything that can be identified Group 3 elements should be general (e.g. Place) or be subproperties of a more general property Placement of data elements within WEMI is highly debated, especially for collective items (books of essays, multiple music works on a disk). kcoyle@kcoyle.net
FR for Authority Data (FRAD) Person Corp Family
FR for Authority Data Person Identification Corp name Family Controlled access point Rules Agency
FR for Authority Data Person Identification Corp name Family Controlled access point Is basis for Rules using Assigned by Agency
FR for Subject Authority Data(FRSAD) Work FRBR Event Is subject Concept Place Object
FR for Subject Authority Data(FRSAD) Work Thema Has subject Nomen Has name
RDA • RDA is at least 3 things: • Cataloging guidance • Ontology (not entirely "linked data" compatible) • Definition of values (most are text; some controlled lists, but most mix list and text)
Some issues - RDA Not well understood Untested, mostly unimplemented Adheres strictly to FRBR - Every RDA element is valid only as a single FRBR entity. kcoyle@kcoyle.net
RDA Properties Extent (Manifestation) Extent (Item) Extent of still image (Manifestation) Extent of still image (Item)
Some issues - RDA There is no data carrier defined for RDA. kcoyle@kcoyle.net
RDA in RDF Joint project between DCMI and RDA April, 2007
http://metadataregistry.org • RDA – properties, relationships, controlled values; still provisional • FRBRer - completed • FRAD – in progress • ISBD – in review