System for processing natural language including identifying grammatical rule and semantic concept of an undefined word
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United States of America Patent
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Apr 28, 1992
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N/A
app pub date -
Nov 28, 1988
filing date -
Oct 29, 1984
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Abstract
A natural language including Japanese, Korean, Chinese, etc., is suitably processed when an undefined word which is not registered in a dictionary appears in an input character train. When the undefined word appears, a semantic analysis processor decides a semantic concept of the undefined word by using a case dictionary. Further, by using a vocabulary hierarchy dictionary, which registers vocabularies in a hierarchy structure, the semantic analysis processor extracts a group of vocabularies (synonyms) corresponding to a lower concept of the semantic concept of the undefined word. The natural language processing can be achieved practically and efficiently with dictionaries of a limited storage capacity.
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