Synthetic Biology:Semantic web ontology/RDF: Difference between revisions
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*[http://www.w3.org/2000/10/swap/doc/rule-tutorial Introduction to N3 Rules] - slides | *[http://www.w3.org/2000/10/swap/doc/rule-tutorial Introduction to N3 Rules] - slides | ||
*[[Wikipedia:Notation_3|N3]] @ Wikipedia | *[[Wikipedia:Notation_3|N3]] @ Wikipedia | ||
==Turtle== | |||
*[http://www.dajobe.org/2003/11/ntriplesplus/ Turtle - Terse RDF Triple Language] | |||
==References== | ==References== |
Revision as of 21:11, 30 April 2006
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:
- the subject is the URL <http://www.example.org/index.html>
- the predicate is the word "creator"
- the object is the phrase "John Smith"
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:
- A Rough Guide to N3
- Primer: Getting into RDF & Semantic Web using N3 from W3C
- Examples - Getting into RDF & Semantic Web using N3 from W3C
- Notation 3 - Ideas about Web Architecture from Design Issues
- Introduction to N3 Rules - slides
- N3 @ Wikipedia
Turtle
References
- RDF Primer at W3C
- Wikipedia page
- RDF @ W3C - a lot of links to resources
- RDF Made Easy - a short tutorial
- Intro to RDF and Jena RDP API
- RDF Tutorial @ W3C - a lengthy presentation
- RDF tutorial from w3schools.com
- Practical RDF - O'Reilly book, decent but not great
- RDF FAQ @ W3C
- RDF Data Access Use Cases and Requirements
- Relational Databases on the Semantic Web
- RDF Tutorial from the University of Lyon
- RDF model and syntax tutorial from RPI
- RDF Concepts and Abstract Syntax
- RDF semantics
- RDF Test Cases
- RDF/XML Syntax Specification
- RDF Vocabulary Reference
- Dave Beckett's Resource Description Framework (RDF) Resource Guide
- taubz.for.net - Resource Description Framework (RDF) for Networking Information on the Semantic Web by Joshua Tauberer
- RDF/A Primer 1.0: Embedding RDF in XHTML
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