RDF Primer - The Diigo Meta page

• 15 Nov 13
  

  rudy van bree

  rdf

• 23 Sep 13
  

  Giulio Falco

  rdf metadata

  • The Resource Description Framework (RDF) is a language for  representing information about resources in the World Wide Web.
• 19 Apr 13
  

  Andrew Godden
• 12 Nov 12
  

  Christopher Günther
  • enables RDF to represent  simple statements about resources as a graph of nodes  and arcs representing the resources, and their properties and  values
• 24 Aug 12
  

  machelle tennent

  RDF semantic web

  • The Resource Description Framework (RDF) is a language for  representing information about resources in the World Wide Web.  It is particularly intended for representing metadata about Web  resources, such as the title, author, and modification date of a  Web page, copyright and licensing information about a Web  document, or the availability schedule for some shared resource.
  • However, by generalizing the concept of a "Web resource", RDF can  also be used to represent information about things that can be  identified on the Web, even when they cannot be directly  retrieved on the Web.
  • RDF is based on the idea of identifying things using Web  identifiers (called Uniform Resource Identifiers,   or URIs), and describing resources in terms of simple  properties and property values.
  • Like HTML, this RDF/XML is machine processable and, using  URIs, can link pieces of information across the Web. However,  unlike conventional hypertext, RDF URIs can refer to any  identifiable thing, including things that may not be directly  retrievable on the Web (such as the person Eric Miller). The  result is that in addition to describing such things as Web  pages, RDF can also describe cars, businesses, people, news  events, etc
  • RDF is intended to provide a simple way to make statements  about Web resources, e.g., Web pages
  • RDF uses a particular terminology for  talking about the various parts of statements. Specifically,  the part that identifies the thing the statement is about (the  Web page in this example) is called the subject.
  • The part that identifies the property or characteristic of the  subject that the statement specifies (creator, creation-date,  or language in these examples) is called the predicate,  and the part that identifies the value of that property is  called the object.
  • RDF is about making  machine-processable statements.
  • . A URL is a character string that  identifies a Web resource by representing its primary access  mechanism (essentially, its network "location").
  • The Web provides a more general form of identifier for these  purposes, called the Uniform Resource  Identifier (URI)
  • URLs are a particular kind of URI.
  • To be more precise, RDF uses URI  references [URIS].

  10 more annotations...

• 18 Oct 11
  

  rdf metadata

• 28 Jun 07
  

  John Mitchell

  rdf semanticweb w3c delicious

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