RDF

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RDF

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RDF

RDF

(1) See reality distortion field.

(2) (Resource Description Framework) The data model that describes the interrelationships between elements in some sphere of knowledge. All the linked vocabularies that make up the Semantic Web use the RDF model, which forms a graph of the connections. The data elements are identified by URIs, text or numbers, and the fundamental RDF structure is the "Triple." See URI.
Theoretical RDF Triple Examples

  noun - Subject:    Pat
  verb - Predicate:  is president of
  noun - Object:     XYZ Company

  noun - Subject:    XYZ Company
  verb - Predicate:  is located in
  noun - Object:     Arizona


Formal Languages Define Ontologies
Two languages are used to define the meaning of the vocabularies graphed in the RDF model: the basic RDF Schema (RDFS) and the more comprehensive Web Ontology Language (OWL). See RDFS, OWL and ontology.

RDF Serializations
The RDF model identifies the elements, but the actual text format, called a "serialization" is written in RDF/XML (required for publishing and sharing) or some other syntax such as N3, Turtle, JSON-LD or RDFa. See Semantic Web, Turtle, JSON-LD and RDFa.
References in periodicals archive ?
RDF Schema is a vocabulary for describing properties and classes of RDF resources, with the necessary semantics for generalization--hierarchies of such properties and classes.
The RDF Schema file for the broker's apartments and proposals (Section 5):
predicate, object) in an RDF graph T The size of T, [absolute value of T], is the number of RDF triples in T An RDF graph is simple if it does not use vocabulary with a predefined semantics in RDF Schema (RDFS).
Ontology described using an RDF schema is a graph G = <{C [union] L},P,[S.
The Semantic Web is comprised of the standards and tools of XML, XML Schema, RDF, RDF Schema and OWL.
RDF Schema es un vocabulario para describir las propiedades y las clases de los recursos RDF, con una semantica para establecer jerarquias de generalizacion entre dichas propiedades y clases.
It is compatible with RDF Schema (RDFS) and includes precise semantics for describing term meanings (and thus also for describing implied information).
RDF Schema then provides a way for those descriptions to be combined into a single vocabulary.
The key components of semantic web technology for representing knowledge are usually classified into three main categories: The Resource Description Format (RDF), RDF Schema and The Ontology Web Language (OWL) Standard.
RDF Schema (9), y OWL (10) para describir conceptos del vocabulario.
The third layer is ontology vocabulary that is rapidly becoming a reality through the development of ontology markup languages such as RDF, RDF Schema, DAML+OIL, and OWL (Web Ontology Language) (Smith, Welty et al.
The first level of ontological functionality is achieved with the RDF Schema (RDFS) [14].