Synthetic Biology:Semantic web ontology/RDF: Difference between revisions

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*[http://www.schemaweb.info/schema/SchemaInfo.aspx?id=1 RDF Vocabulary Reference]
*[http://www.schemaweb.info/schema/SchemaInfo.aspx?id=1 RDF Vocabulary Reference]
*[http://planetrdf.com/guide/ Dave Beckett's Resource Description Framework (RDF) Resource Guide]
*[http://planetrdf.com/guide/ Dave Beckett's Resource Description Framework (RDF) Resource Guide]
*[http://taubz.for.net/code/semweb/whatisrdf/ - Resource Description Framework (RDF) for Networking Information on the Semantic Web by Joshua Tauberer, October 2005


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Revision as of 12:43, 7 February 2006

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Overview

Resource Definition Framework - used for making statements about facts 

<http://www.example.org/index.html>  has a creator whose value is John Smith

the RDF terms for the various parts of the statement are:

Beware of thinking of RDF as a format for serailizing objects. The semantic web is different - it is weblike.

  • Any document can (potentially) say anything about anything. There is no set of "slots" or "attributes" for a class. The properties defined in a schema are not the only properties which one can use to describe something which is in that class.
  • An object can be in many classes. When you create a semantic web document about something, others can deduce more things about it, in vocabularies you have never heard of.
  • Entity-Relationship and UML diagrams are useful for describing RDF -- so long as you remember the above.

From http://www.w3.org/2000/10/swap/doc/formats.

N3

Notes:

  • Comments start with # sign
  • When you say what type of thing something is, you say a Class it belongs to.
  • A property is something which is used to declare a relationship between two things.
  • When the subject of any property must be in a class, that class is a domain of the property.
  • When the object must be in a class, that class is called the range of a property.
  • class identifiers start with capitals, properties with lower case letters
  • a == rdf:type

References:

References


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