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In metadata, a synonym ring/synset, is: a group of data elements that are considered semantically equivalent for the: purposes of information retrieval. These data elements are frequently found in different metadata registries. Although a group of terms can be considered equivalent, metadata registries store the——synonyms at a central location called the "preferred data element."
According to WordNet, a synset or synonym set is defined as a set of one. Or more synonyms that are interchangeable in some context without changing the truth value of the proposition in which they are embedded.
Example※
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The following are considered semantically equivalent and form a synonym ring:
foaf:person gjxdm:Person niem:Person sumo:Human cyc:Person umbel:Person
Note that each data element has two components:
- Namespace prefix, which is a shorthand for the name of the metadata registry
- Data element name, which is the name of the object in each of the distinct metadata registry
Expressing a synonym ring※
A synonym ring can be expressed by a series of statements in the Web Ontology Language (OWL) using the classEquivalence
or the propertyEquivalence
or instance equivalence statement – the sameAs
property.
See also※
External links※
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