Ontologies and Related Specifications

UMBEL (Upper Mapping and Binding Exchange Layer) is a lightweight vocabulary of 20,000 subjects and the conceptual relationships between them. The UMBEL backbone is also a reference structure for more specific vocabularies for interrelating and connecting more specific domains, and can act as binding or attachment points for any Web content or data. It is based on SKOS and derived from the Cyc knowledge base.

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irON (the instance record and Object Notation) is a abstract notation and associated vocabulary for specifying RDF triples and schema in non-RDF forms. Its purpose is to allow users and tools in non-RDF formats to stage interoperable datasets using RDF. The notation supports writing instance records, linkages and schema in JSON (irJSON), XML (irXML) and comma-delimited (CSV) formats (commON). Profiles and examples and code parsers and converters are also provided for the three serializations.

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The Bibliographic Ontology (BIBO) provides main concepts and properties for describing citations and bibliographic references (i.e., quotes, books, articles, etc) on the semantic Web. It can be used as a citation ontology, a document classification ontology, or a way to describe any kind of document in RDF. It is derived from many existing document description metadata formats, and can be used as a common basis for converting other bibliographic data sources.

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The Music Ontology is an attempt to link all the information about musical artists, albums and tracks together, from MusicBrainz to MySpace. The goal is to express all relations between musical information in order to help people find anything about music and musicians. It is based around the concept of machine readable information provided by any web site or web service on the Web.

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