Thesaurus Expansion
Thesaurus expansion allows a term or phrase in a user’s
search to be replaced with a set of custom related terms before the
actual search is performed. This feature improves search quality by
handling unique, obscure, or industry-specific terminology.
Thesaurus expansion has the following characteristics:
- It is applied to each term in a basic search.
- It is applied in all three search modes (Internet Style, Query
Operators, and Bag of Words).
- It is not applied to quoted phrases.
- If a term is expanded by a thesaurus entry, then it is not eligible
for automatic spelling correction.
- Unlike automatic spell correction, which is applied only as a
fallback when the non-corrected terms do not match any documents,
thesaurus expansion is always applied to all individual search terms.
