Posts In Category Articles

Types of Statement in an Ontology =

on May 13, 2011 by Robert Stevens in Under Review, Comments (2)

Overview An ontology or ontology-like artefact can contain a variety of types of statements about the domain being modelled, as well as statements about the artefact that is the […]

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Do Cyclists pay tax? An investigation of roles and number.

on April 5, 2011 by Phillip Lord in Under Review, Comments (0)

Abstract Most long term cyclists in the UK face the accusation from other road users that, as they “don’t pay tax anyway”, then they should not be accorded with […]

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Introduction: Health informatics terminologies and related resources

on February 10, 2011 by Alan Rector in Under Review, Comments (0)

Healthcare and medical terminology systems come in a sometimes bewildering variety of flavours and ‘standards’.   Despite the similar names, there have been, and continue to be, a number […]

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Is a class the same as its extent?

on January 14, 2011 by Phillip Lord and Uli Sattler in Articles, Reviewed, Comments (4)

Abstract While it is true that an ontology class defines a set of individuals, its extent, the reverse is not so. The class is not the same as its […]

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Closing Down the Open World: Covering Axioms and Closure Axioms

on January 12, 2011 by Robert Stevens in Under Review, Comments (4)

OWL has an open world assumption. This means that just because we don’t say something doesn’t mean it isn’t true. For example, we have an ontology of amino acids […]

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Reification of properties in an ontology

on December 18, 2010 by Robert Stevens and Phillip Lord in Under Review, Comments (0)

Abstract Reification is a technique enabling a richer description of a property. Traditionally, “reification” has been used to support descriptions of the source of knowledge; instead of statements of […]

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Naming conventions for robust term labelling

on November 19, 2010 by Daniel Schober in Under Review, Comments (0)

Naming conventions for robust term labelling Abstract This article tackles guidelines supporting the creation of human intelligible yet computationally robust labels for concepts and relations in ontologies. When an […]

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There is no “other” category: When to avoid “miscellaneous”

on April 20, 2010 by Robert Stevens and Duncan Hull in Under Review, Comments (0)

It is often tempting when describing a series of subclasses that you know are not exhaustive to add a class labelled as “Other” or “Miscellaneous”. This is generally seen […]

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Defining Definitions

on by Robert Stevens and Duncan Hull in Under Review, Comments (1)

Ontology can be thought of as the definition of entities in a domain of interest. It is useful, however, to talk about the word definition in a little more […]

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Separating Concepts from Labels

on by Robert Stevens and Duncan Hull in Under Review, Comments (0)

When creating ontologies it is good practice to separate the concept and the label or term used to refer to that concept. Take the category or class that the […]

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