Where to find vocabularies
This page lists resources for finding vocabularies. Note that there is no central repository of vocabularies on the semantic web.
NOTE: the list below is not ordered by any measure of importance. In fact, it is ordered alphabetically.
- 1 American Society for Indexers
- 2 Cognition
- 3 Common Tag
- 4 eXtended WordNet
- 5 Falcons Concept Search
- 6 The Getty
- 7 Library of Congress Authorities and Vocabularies
- 8 Open Ontology Repository (BioPortal)
- 9 rdfs.org
- 10 SchemaCache
- 11 Schemaweb.info
- 12 Sindice
- 13 Swoogle
- 14 Taxonomy Warehouse
- 15 Vocab.org
- 16 WordNet
- 17 xmlns.com
American Society for Indexers
Cognition.com is a definition level organization of terms.
eXtended WordNet uses WordNet as a basis, and adds some key enhancements. "In the eXtended WordNet the WordNet glosses are syntactically parsed, transformed into logic forms and content words are semantically disambiguated." (description from the site)
Falcons Concept Search
Actively maintained Semantic Web search engine for finding ontologies.
The Getty vocabularies are vocabulary databases produced and maintained by the Getty Vocabulary Program
Library of Congress Authorities and Vocabularies
Open Ontology Repository (BioPortal)
Open Ontology Repository is the design document behind the OOR system, which is currently used at BioPortal. The same technology could be used to set up other ontology repositories in different domains.
Currently hosts SIOC, RDF-Resume and others vocabularies.
Talis's cache with search of vocabularies.
Seems more or less actively unmaintained since 2005, but vocabularies still added in 2007.
Semantic search engine with an actively maintained large index of ontologies and individuals. The interface itself doesn't allow to query for an ontology with a particular name for a class, but it's possible with the API..
More or less seems not updated, by still useful sometimes for finding ontologies.
Free and fee-based vocabularies licensed from a variety of providers.
Hosts a large amount of vocabularies, actively maintained.
See also, eXtended WordNet, which uses WordNet as a basis, and adds some key enhancements.
Hosts FOAF and WOT vocabularies.