G - Physics – 06 – F
Patent
G - Physics
06
F
354/112, 354/120
G06F 15/02 (2006.01) G06F 17/28 (2006.01)
Patent
CA 1301934
Abstract A system for the grammatical annotation of natural langauge receives natural langauge text and annotates each word with a set of tags indicative of its possible grammatical or syntactic uses. An empirical probability of collocation function defined on pairs of tags is iteratively extended to a selected set of tag sequences of increasing length 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 calculation reveals erroneous use of the wrong word. For words with tags having abnormally low frequency of occurrence a stored table of reduced probability factors corrects the calculation. Once the text words have been annotated with their most probable tags, the tagged text is parsed by a parser which sucessively applies phrasal, predicate and clausal analysis to build higher structures from the disambiguated tag strings. A voice/text translator including such a tag annotator resolves sound or spelling ambiguity of words by their differing tags. A database retrieval system, such as a spelling checker, includes a tag annotator to identify desired data by syntactic features.
579695
Carus Alwin B.
Hopkins Jeffrey G.
Kucera Henry
Riches Mckenzie & Herbert Llp
Vantage Technology Holdings
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