CODEWITHSUNDEEP
ontology
Catty42
Catty42

Reputation: 57

How to combine ontologies?

I am a beginner in the field of ontologies, ontology alignment and composition of ontologies. What is the purpose of the composition of ontologies and on what basis it is performed and how ?

Upvotes: 0

Views: 618

Answers (1)

Artemis
Artemis

Reputation: 3301

One of the main advantages of using ontologies is knowledge sharing. Different people from various backgrounds might develop the same ontology. This will often result in having different labels for the same concepts or relations. In order to be able to take advantage of having multiple ontologies in the same domain, for example for having a more comprehensive and expressive domain ontology, ontology matching/alignment comes to play. In the ontology matching, a mapping between concepts an relations of various ontologies is created.

For example, before national cancer institute came up with the first version of their cancer ontology, there were multiple ontologies modelling cancer around. They started by combining the various available ontologies and creating a central, more reliable ontology.

There are various algorithms for ontology matching. The algorithms normally are categorised based on:

  • input
  • process
  • output

Broadly putting it, you can either match on element to element basis, or based on the structure. The tools that can be used for matching can be linguistic resources such as WordNet for semantic matching, or domain specific resources, statistical approaches, taxonomy, various models, and etc.There are too much research in this area and you should really consider using google scholar.

Upvotes: 0

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