semantic web - Difference between ontology and gazetteer? -

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according gate.ac.uk gazetteer is:

a gazetteer consists of set of lists containing names of entities such cities, organisations, days of week, etc. these lists used find occurrences of these names in text, e.g. task of named entity recognition. word ‘gazetteer’ used interchangeably both set of entity lists , processing resource makes use of lists find occurrences of names in text.

how different "ontology"?

an ontology (in semantic web context) set of axioms in formal language defined inference procedure; allows verify entailments.

a gazetteer, can find online, has no inference procedure defined: given assertion, can considered entailed gazetteer if found explicitly expressed in it. so, gazetteer represented in formal language (rdf, rdfs, or owl, semantic web languages) equivalent ontology of minimal expressivity, no new inferences can drawn.


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