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CmpE 583- Web Semantics: Theory and Practice INTRODUCTION TO RDF SCHEMA

CmpE 583- Web Semantics: Theory and Practice INTRODUCTION TO RDF SCHEMA. Atilla ELÇİ Computer Engineering Department Eastern Mediterranean University. Introduction. RDF is basis for the world of the Semantic Web. RDF Schema is the transformation language for simple ontology cases in RDF.

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CmpE 583- Web Semantics: Theory and Practice INTRODUCTION TO RDF SCHEMA

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  1. CmpE 583- Web Semantics: Theory and PracticeINTRODUCTION TORDF SCHEMA Atilla ELÇİ Computer Engineering Department Eastern Mediterranean University CmpE 583 Fall 2006

  2. Introduction • RDF is basis for the world of the Semantic Web. • RDF Schema is the transformation language for simple ontology cases in RDF. CmpE 583 Fall 2006

  3. Agenda • Rudimentary ontology: • RDF Schema (RDFS) language CmpE 583 Fall 2006

  4. RDF: Part Played by RDFS • RDF describes resources over the Internet. • RDFS is used to create class hierarchies for the classification and description of resources. • Domain-neutral lightweight schema language. • Its vocabulary description is written in RDF. CmpE 583 Fall 2006

  5. RDF: Part Played by RDFS The Semantic Web Stack A layered approach to creating the Semantic Web by Tim Berners-Lee, circa 1998. W3C Semantic Web Cake W3C Semantic Web Cake, conceptual, circa 2006 CmpE 583 Fall 2006

  6. RDF Schema Intro • Ch. 9 in the textbook by Lacy. Notes. • Also see: Figures 5.9 – 10 and Listings 5.6 – 7 in Section 3 on RDF Schema in Chapter 5in [Smith]. CmpE 583 Fall 2006

  7. RDFS: the RDF Schema • RDF Schema: pp. 34 – 56 in Herman-2006. • RDF Schema: pp.: 43 - 58 in [Herman] • Further RDFS in [Herman]: • Classes, Collections, Sequences pp.: 59 – 69 • Graphical interface: pp.: 70-73. CmpE 583 Fall 2006

  8. RDFS in proper by Recommendations • Section 5 in RDF Primer by Frank Manola, Eric Miller (eds.): Introductory volume of the six current recommendations: • Figure 18- Vehicle class hierarchy • Example 23- Vehicle class hierarchy in RDF/XML • Example 24- Example 23 abbreviated. • Example 25- An instance. • Standard Recommendation of 10 February 2004: RDF Vocabulary Description Language 1.0: RDF Schema by Dan Brickley, R.V. Guha (eds.). CmpE 583 Fall 2006

  9. RDF Specifications by W3C • Obsolete recommendations of 1999: • RDF Model and Syntax (1999 Recommendation) • RDF Schema (1999 Proposed Recommendation). • Current Recommendations set dated 10 February 2004: • RDF/XML Syntax Specification (Revised) by Dave Beckett (ed.). • RDF Vocabulary Description Language 1.0: RDF Schema by Dan Brickley, R.V. Guha (eds.). • RDF Primer by Frank Manola, Eric Miller (eds.). • Resource Description Framework (RDF): Concepts and Abstract Syntaxby Graham Klyne, Jeremy Carroll (eds.). • RDF Semantics by Patrick Hayes (ed.) • RDF Test Cases by Jan Grant, Dave Beckett (eds.). CmpE 583 Fall 2006

  10. Where to Get More Information • A full-day Semantic Web Tutorial by TBL et. al. • [Smith] The Semantic Web: A Guide to the Future of XML, Web Services, and Knowledge Management, 1st edition, by Kevin T. Smith, Michael C. Daconta, Leo J. Obrst. John Wiley & Sons, 2003. ISBN:0471432571. Available as e-book at ACM Professional Development Center. • RDF Schema: pp.:43 - 58 inTutorial on Semantic Web Technologies by Ivan Herman, dated 27 Oct 2004. • RDF Vocabulary Description Language 1.0: RDF Schema by Dan Brickley, R.V. Guha (eds.). • Semantic Web: WWW Consortium Semantic Web pages, 2004. CmpE 583 Fall 2006

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