Slide Notes on Ontologies Essays

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Slide 1
Working with organisation in university
Problems communicating via email initially, research done
After initial meeting in week 4 : project finished just needs tweaking
Opted to do a new project
Technologies used etc etc etc
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Slide 2
The seperate ontology files are not curated (repaired, named) nor content-wise annotated
In the long run, aim to create a ontology repository along with ontology related metadata (expressivity, classcounts etc, the usual), enabling users to creating custom sets, save these sets with a public identifier and thus create a shareable test set that can be used for comparative analysis (think reasoner performance)
DL expressivity: variety of description logic used. base logic includes attributive language (AL), frame based descriptive language (FL), and EL. Each of these can then have extensions after them, such as F, for functional properties. DL expressivity describes the structure and formality of the ontology an axiom is simply a logical statement. there are two types of these – terminological axioms which describe the structure of the domain, e.g. a father is a man who has a human child. assertional axioms describe a concrete situation e.g. Mick is a man who has a female child
1 minute 30 seconds

Slide 3
2 minutes
Imagine shipwrecked different language etc etc
An ontology is a machine-readable representation of a domain's terminology and the relationships among the terms in the domain.

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Example

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For example, suppose several different Web sites contain medical information or provide medical e-commerce services. If these Web sites share and publish the same underlying ontology of the terms they all use, then computer agents can extract and aggregate information from these different sites. The agents can use this aggregated information to answer user queries or as input data to other applications. was one of the driving forces behind recent surge in ontology research. If one group of researchers develops such an ontology in detail, others can simply reuse it for their domains. Additionally, if we need to build a large ontology, we can integrate several existing ontologies describing portions of the large domain.
2 minutes

Slide 6
Markup language – way to annotate a document that is syntactically distinguishable from the
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