A method and apparatus derive a dynamic grammar composed of a subset of a plurality of data elements that are each associated with one of a plurality of reference identifiers. The present invention generates a set of selection identifiers on the basis of a user-provided first input identifier and determines...http://www.google.com/patents/US7630899?utm_source=gb-gplus-sharePatent US7630899 - Concise dynamic grammars using N-best selection
