3

Thesauri

In the foregoing chapters it has become evident that there is a close relationship between ontologies, taxonomies and thesauri. In fact, although there are differences between these three classification systems, all three enclose a structure made up of conceptual units, as in the case of thesauri. Their conceptual units are converted into terms insofar as they are expressed by specific words for each subject or theme. These terms are related to each other in one way or another, and in this way they resemble the relationships established in thesauri. It is therefore necessary to know what a thesaurus is, and how it is constructed and used.

Moreover, the use of computer languages devised for the construction of Internet databases and ...

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