The search is performed broadly to match on stems and thesaural
variants of the user's keywords.
Analysis of thesaural
and semantic sources, as well as publicly available corpora, indicate that the approximate ratio of multiword expressions to single words in general language is about 0.8 (this typically applies to Western European and North American languages where compounding is not that marked).
(1991), "Lexical Cohesion Computed by Thesaural
Relations as an Indicator of the Structure of Text", Computational Linguistics, volume 17, number 1, pp.
A Yes, and one of the things Teltech has, that you may not know about, is a very detailed and comprehensive thesaural
When this happens, as Sobin puts it in a pithy line, the past and present "clot, thesaural
Roget, of thesaural
fame, is a character in Stephenson's play.
In turn a concept is represented by several terms (often thesaural
equivalents or variant forms of the same word) any one of which may be present; each disjunction expresses that any of the terms by itself represents the concept.
Complete syndetic structure is emphasized because this thesaural
characteristic is least well represented by LCSH.
* Concept-based such as Verity (verity.com) and FAST (fastsearch.com) extracts the meaning of your query and matches it with what authors mean in documents, even though the search term doesn't exactly correlate with the terms used in documents--"ice cream" might bring up documents containing "gelato" using a thesaural