The use of URIs in RDF facilitates a marketplace of terms and vocabularies. This is not a centralized directory of RDF vocabularies; there is no such thing. But let's use this as a place to advertise our work (though it's not a substitute for MailingLists and such) and a place to look when you're considering whether to BuildOrBuyTerms, and as a place to compare and contrast, and perhaps to facilitate sharing (especially in SeedApplications) vs. supporting redundant vocabularies.
To facilitate comparing and contrasting, please give more than a name and a pointer; try to give a sense for how much endorsement it has, who to contact about changes, any terms and conditions that might restrict use, and the like.
Where can I find RDF schema, vocabularies, and ontologies?
(new!) Talis Schemas - many schemas, fast search
the W3C RDF homepage lists selected applications
SchemaWeb repository of ontologies
http://olp.dfki.de/ontoselect/ repository of ontologies
Swoogle Semantic Web search focusses on vocabularies/ontologies (blog)
Falcons Concept Search finds RDF classes and properties on the Web, very good coverage
browse/search the www-rdf-interest archive. BonusPoints for folks that troll the archive and index stuff here or nearby.
Dave Beckett's resource guide lists many others (outdated -- last update in 2005)
The DAML ontology library has 204 ontologies as of Apr 2003. (outdated -- DAML is history)
Where should I submit RDF schema, vocabularies, and ontologies to make them publicly available?
http://www.schemaweb.info - active, running, good gui
http://olp.dfki.de/ontoselect/ - active, running, good gui
myontology - community maintained ontologies
The DAML ontology library - outdated (daml is history)
rdfschema.info's Known Ontologies (now defunct: 2006-03-27)
www-rdf-interest and other MailingLists
- Here.
What should I use for traditional bibliographic stuff, like title/author/date?
The Dublin Core element set is pretty widely deployed; it's used in DMOZ (LinkMe), XMP etc.
Open Archives Object Reuse and Exchange (OAI-ORE). See also LDOW2009 paper
See BookVocabularies for more vocabularies related to books.
What should I use for e-commerce data, e.g. for describing businesses, offerings, prices, features, payment options, opening hours, and the like?
The GoodRelations vocabulary is recommended; it is used by e.g. Yahoo SearchMonkey and BestBuy.
Web cast (15 minutes)
Producing magazines is metadata intensive. Anybody using RDF to attack that problem?
How about news/content syndication?
Rich Site Summary, RSS
Is anybody trying to integrate iCalendar into the framework?
see RdfCalendar
Anyone know of an RDF schema for filesystem data?
RDF for email?
see EmailVocabulary
What should I use for contact information?
Friend Of A Friend FOAF vocabulary includes stuff like name, homepage, mailbox, as well as relationships between people, documents, interests, etc. Deployment is growing. LinkMe: evidence
RELATIONSHIP describes relationships between people (friendOf, parentOf, spouseOf, etc.)
Contact: Utility concepts for everyday life, in the Semantic Web Application Platform by TimBL and company
Representing vCard Objects in RDF/XML Renato Iannella, February 2001. hmm... exemplifies some PPR:AntiPattern s we have identified since then, no? let's document those
An Ontology for vCards - 2006 version by Harry Halpin, Brian Suda and Norman Walsh, better interoperability with hCard
Description of a Career (DOAC) allows you to share information about your resume and other information related with your career.
how about music collections?
MusicBrainz Metadata Initiative 2.1 Last revision: 2003-02-06 by Mayhem & Chaos
content selection? Anybody working on PICS in RDF?
Project Management?
Project Vocabulary - vocabulary for describing projects independently of the project domain
also DOAP, to describe open-source projects
Engineering Mathematics ?
I am interested to develop ontologies for Engineering mathematics. So far, the best model I have found is the one developed by KSL Stanford in OntoLingua (EngMath ontologies). Is anyone aware of some activities porting this ontologies in OWL ? The ontology has been developed in LISP and KIF ? Is it completely portable in OWL or do I need some extensions in OWL such as OWL Rule Language ? The link to EngMath is at : http://www.ksl.stanford.edu/knowledge-sharing/papers/engmath.html . If no activities is done for this, I think it may be useful to develop it as an open-source ontology. What would be the best approach to initiate such a project as open-source ? Do other ontologies exist for engineering mathematics ?
So far I have found: ScalaOnWeb
To the extent that these vocabularies get deployed in the public Web, ie as Hypertext RDF - a technique for measuring RDF vocabulary deployment suggests some strategies for automating aspects of this survey. which strategies? lets fold that (tiny) page into this doc... --DanBri