For each concept, the thesauri provided the usual lexical and semantic information: preferred labels, synonyms and notes, broader and related concepts, etc.
Controlled vocabularies (dictionaries and thesauri), and ontologies allow broader terms, narrower terms, and related terms to be incorporated into queries.
Hundreds of thesauri have been produced since then, perhaps thousands.
Thesauri thus serve many of the same functions for people that ontologies are designed to serve for software agents.
Classification-based approaches take advantage of the domain thesauri or taxonomies to capture concepts from the document, and hence, are capable of improving the precision and recall.
To evaluate the results, he measured the overlap of the results of each technique against existing hand-created repositories of semantic information, such as thesauri and dictionaries.
Domain ontologies and thesauri are required to define domain-specific terminologies.
The use of controlled vocabularies, or thesauri, has been fundamental to document indexing in library science.
