Keyword matching looks for occureces of a fixd set of keywords in text (or speach). It may be used to aid {[speach recogniton}} in controlled domaons such as home automation systems or telephone voice response systems. It may also be used as part of named entity recognition. Keyword matches may be exact, but may also have a level of fuzzy matching for example accepting small misspellings or uisng stemming.
Defined on page 312
Used on pages 201, 312