Collocational grammar system

专利名称：Collocational grammar system发明人：Henry Kucera,Alwin B. Carus,Jeffrey G.

Hopkins

申请号：US07/106127申请日：19871007公开号：US04868750A公开日：190919

摘要：A system for the grammatical annotation of natural language receives naturallanguage text and annotates each word with a set of tags indicative of its possiblegrammatical or syntactic uses. An empirical probability of collocation function defined onpairs of tags is iteratively extended to a selected set of tag sequences of increasinglength so as to select a most probable tag for each word of a sequence of ambiguously-tagged words. For listed pairs of commonly confused words a substitute calculationreveals erroneous use of the wrong word. For words with tags having abnormally lowfrequency of occurrence, a stored table of reduced probability factors corrects thecalculation. Once the text words have been annotated with their most probable tags, thetagged text is parsed by a parser which successively applies phrasal, predicate and clausalanalysis to build higher structures from the disambiguated tag strings. A voice/texttranslator including such a tag annotator resolves sound or spelling ambiguity of wordsby their differing tags. A database retrieval system, such as a spelling checker, includes atag annotator to identify desired data by syntactic features.

申请人：HOUGHTON MIFFLIN COMPANY

代理机构：Lahive & Cockfield

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