Reference Ontology Presentation

1. Referenceontology
Lela Zemmouchi-Ghomari, [email protected]
Abdessamed Rda Ghomari, [email protected]
LMCSLaboratory,
ESI (National Superior School of Computer Science)
Algiers, Algeria
KARE InternationalWorkshop
In conjunctionwithSITIS, IEEE International Conference
November 29th-December 04th 2009 held in Marrakech, Morocco

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Introduction
Semantic web
Knowledgeshare
Need ofdomain ontologies
Many ontologies built
Most ofthemaretoospecific
domainReference ontologies
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Contents
Whatis a Referenceontology?
Whatisexpectedfromthisontology?
How to buildit?
What are the mostfamousReference ontologies?
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Nicolas Guarinouses the term : Referenceontology for the first timeduring the 26th GermanConference on Artificial Intelligence (September 15th-18th2003 held in Hamburg)
SinceThen, there have been ManyReferenceontologydefinitionsproposedwhichhighlitedits main features, such as:
To Describe a certain domainadequately

Tobetrue about a certain portion of reality

To beindependentfromspecific objectives

To bevalidated by a large community of domain experts

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Domain Reference ontologies representknowledge about a particular part of the world in a waythatisindependentfromspecific objectives, through a theory of a domain
Anita Burgun, Desiderata for domainreference ontologies in biomedicine, Journal of Biomedical information, 39(2006) 307-313.
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Purpose
Application
Expressiveness
FoundationalOntology
Vs. Reference
Ontology
Reference
Lightweight
Heavyweight
Specificity
Core
Domain
Generic
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Reference ontology
Foundational ontology

Declare a theory about a particulardomain of reality

8. Make use of methods of top-level ontologies 9. Generalize to otherdomains (more specificdomains) 10. Domain-independenttheories 11. High degree of representationalaccuracy 12. Designed to be used ascontrols on other ontologies types
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WhenReferenceontologyisgeneric, the twoontology types are equivalent.
Otherwise, theybelong to different abstraction levels:
Conclusion
RequiressolidPhilosophical Background
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Purpose
ReferenceVs. Application
ontologyontology
Application
Expressiveness
Reference
Lightweight
Heavyweight
Specificity
Core
Domain
Generic
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Application ontology
Reference ontology

Narrow and Shallow:

16. Provides a minimal terminological structure 17. Fits the needs of a specificcommunity

Offersterminological services for semanticaccess, checkingconstraintsbetweenterms

18. Lightweight ontologies, designedaccording to the viewpoint of an end-user in a particulardomain 19. Can bederivedfromReferenceontology 20. Broad and Deep: 21. maximal coverage 22. Fits the needs of a largecommunity

Establishes consensus about meaning of terms

23. Rich, axiomatictheories, designedaccording to strict ontologicalprinciples 24. Can bederivedfromFoundationalontology