Patent ID: 7412093

Claim:
A hybrid apparatus for recognizing answer type, the apparatus comprising: a morpheme analyzer for analyzing morphemes of an input text; a syllabic answer type recognizer for extracting a predetermined size of syllable from a morpheme list analyzed by the morpheme analyzer and recognizing an answer type based on the extracted syllable; a vocabulary feature recognizer for allocating corresponding feature to each of morphemes constructing the morpheme list and recognizing the corresponding feature of each morpheme; a vocabulary feature disambiguation unit for disambiguating vocabulary feature ambiguity of morphemes having more than one feature recognized at the vocabulary feature recognizer; a pattern rule based answer type recognizer for recognizing an answer type by comparing a consecutive sequence of the morphemes and a consecutive sequence of constitutional features connected to the morphemes with a pre-constructed pattern rules; a statistic answer type recognizer for recognizing an answer type by implementing a statistic model to the consecutive sequence of the morphemes and the consecutive sequence of constitutional features connected to the morphemes; and an answer type sub-category recognizer for recognizing a sub-category of the recognized answer type classified to general category at the statistic answer type recognizer.