3. types of things
1. things we are describing/cataloging – either
as subjects or objects
2. relationships (were: data elements)
3. controlled vocabularies
4. Library things
Work
Object
Person
Expression
Place
Family
Manifestation
Concept
Corp
Item Event
5. Library things
Work
Object
Person
Expression
Place
Family
Manifestation
Concept
Corp
Item Event
12. Identifying People
• Friend Of A Friend http://www.foaf-project.org/
– “foaf-a-matic” http://ldodds.com/foaf/foaf-a-matic/
• Wikipedia – any person’s page URL
• Worldcat Identities
• New York Times http://data.nytimes.com
• MusicBrainz http://musicbrainz.org
• BBC
• Virtual International Authority File (http://viaf.org)
13. Identifying Places
• Geonames http://geonames/org/
• Wikipedia
• AGROVOC (FAO subject thesaurus)
– http://aims.fao.org/standards/agrovoc/about
• LCSH http://id.loc.gov/
• BBC
• New York Times
14. Identifying Topics
• WikiSpecies
• BBC Wildlife Ontology
• National Agriculture Library Thesaurus
• AGROVOC (FAO)
• Various library subject thesauri (LC, Bnf, DNB,
BNE, Japan)
• Many, many more
23. Programming
Apache Jena
http://jena.apache.org
“Java framework for building Semantic Web
applications.”
• Tutorial!
• Getting started help!
• Documentation!
24. Programming
Pellet
http://clarkparsia.com/pellet/
“OWL2 Reasoner for Java”
•Users group listserv.
•Examples in download.
•Commercial support available.
25. Programming
Snoggle
“a graphical, SWRL-based ontology mapper to
assist in the task of OWL ontology alignment”
26. Programming
Virtuoso SPARQL query editor
http://virtuoso.openlinksw.com
SPARQL by Example
http://www.cambridgesemantics.com/2008/09/sparql-by-
example
tutorial!
All things should have URI if possible. Note that in the parlance of the semantic web, even the relationships, formally, are things. This may be true, but I find that it is easier to think of things and relationships separately because we do think of them differently, even though they will both take the form of URIs.
We have an idea of what the library “things” are.
But we don’t want to create library things – we want to idenitify universal things that will link to and intereact with the same things when they occur in other metadata. The things in library data are, for the most part, not unique to libraries. People, places, events, topics, and even books and journals and pieces of music… there are many communities that are interested in these things, and a surprising number who are including them in metadata.One area of our modern concept of library resources that is still puzzling to the members of our community who are working on linked data is what to do about the division of resources into the FRBR concepts of Work, Expression, Manifestation and Item. The pre-FRBR bibliographic data in which these are pretty much blended into a single thing is closer to the rest of the world’s idea of resources to be defined by metadata. So there is a bit of a dilemma here, and I’m going to skip over this particular issue because it is more than a bit of a morass, and we could get stuck there for a while. Just know that there are good minds working on how we’ll connect FRBR-ized bibliographic data to non-FRBRized data both within libraries and on the web.
other products as well. online demos.
IMLS grant – modules to teach developers and programmers how to use the tools.