1 Copyright © 2005 Access Innovations, Inc. OWL Mapping Thesaurus Format NEXT GENERATION KNOWLEDGE ORGANIZATION SYSTEMS: INTEGRATION CHALLENGES AND STRATEGIES.

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1 Copyright © 2005 Access Innovations, Inc. OWL Mapping Thesaurus Format NEXT GENERATION KNOWLEDGE ORGANIZATION SYSTEMS: INTEGRATION CHALLENGES AND STRATEGIES The 7 th Networked Knowledge Organization Systems (NKOS) Workshop Joint Conference on Digital Libraries June 10-11, 2005 Jay Ven Eman, Ph.D., CEO Access Innovations, Inc FAX

2 Copyright © 2005 Access Innovations, Inc. OWL Web Ontology Language W3C Recommendation 10 February

3 Copyright © 2005 Access Innovations, Inc. OWL “…is intended to provide a language that can be used to describe  the classes and  relations between them that are inherent in Web documents and applications.”

4 Copyright © 2005 Access Innovations, Inc. OWL Formalize a domain by defining  Classes  Properties of those classes Define individuals  Assert properties about them Reason about these  Classes and  Individuals

5 Copyright © 2005 Access Innovations, Inc. Ontology From philosophy – the science of describing  Kinds of entities in the world  How they are related

6 Copyright © 2005 Access Innovations, Inc. OWL Ontology May include  Classes  Properties  Instances Capture semantics Multiple, distributed, related ontology schema Normative OWL exchange syntax RDF/XML  Resource Description Framework/Extensible Markup Language

7 Copyright © 2005 Access Innovations, Inc. Taxonomy, Thesaurus, & Ontology Taxonomies and thesauri are not ontologies They are entities or “conceptualizations” Ontology – science of describing kinds of entities For thesauri and taxonomies  “a specification of a conceptualization”

8 Copyright © 2005 Access Innovations, Inc. Taxonomy, Thesaurus, & Ontology OWL output  Provides semantic meaning to these kinds of entities or conceptualizations  Web resource  Accessible to automated processes

Hierarchical View Term

10 Copyright © 2005 Access Innovations, Inc. DH OWL Output Open DHProject.owl

11 Copyright © 2005 Access Innovations, Inc. DHProject.owl <!DOCTYPE rdf:RDF [ ]> <rdf:RDF xmlns=" xmlns:DHProject =" xmlns:base =" xmlns:owl =" xmlns:rdf =" xmlns:rdfs=" xmlns:xsd =" OWL export from MAIstro DHProject Ontology Declaration XML entities Default namespace Current ontology Base URI for this document Namespaces for rdf, rdfs, & xsd Ontology header Thesaurus Specification

12 Copyright © 2005 Access Innovations, Inc. DHProject.owl

13 Copyright © 2005 Access Innovations, Inc. DHProject.owl Agribusiness Agriculture Agronomy American music Architecture End of Ontology Specification

Hierarchical View Term

15 Copyright © 2005 Access Innovations, Inc. DHProject.owl Agribusiness Agriculture Agronomy American music Architecture

16 Copyright © 2005 Access Innovations, Inc. DHProject.owl Band music Bands (Music) Baroque music Bluegrass music Brass instruments Business Chamber music

17 Copyright © 2005 Access Innovations, Inc. Thank you! Questions? OWL Mapping Thesaurus Format NEXT GENERATION KNOWLEDGE ORGANIZATION SYSTEMS: INTEGRATION CHALLENGES AND STRATEGIES The 7 th Networked Knowledge Organization Systems (NKOS) Workshop Joint Conference on Digital Libraries June 10-11, 2005 Jay Ven Eman, Ph.D., CEO Access Innovations, Inc FAX