Synonym extraction device, synonym extraction method, and synonym extraction program

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United States of America Patent

PATENT NO 11900055
SERIAL NO

17431495

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Abstract

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A synonym extraction apparatus determines, for compound words included in the document, that types of nouns constituting the compound word are each a Sahen-noun or another noun type to determine a pattern of a sequence of the types of the nouns constituting the compound word, extracts a group of compound words having an identical pattern of the sequence of the types, extracts compound words having an identical leading or ending word from among them, and creates, for a group of compound words having the identical pattern of the sequence of the nouns and the identical leading or ending word, a co-occurrence vector having, as a component, a noun appearing in the same sentence as the corresponding compound word, and outputs, as synonyms, a group of compound words having a degree of similarity between the co-occurrence vectors of the compound words equal to or greater than a predetermined threshold.

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Patent Owner(s)

Patent OwnerAddress
NIPPON TELEGRAPH AND TELEPHONE CORPORATION5-1 OTEMACHI 1-CHOME CHIYODA-KU TOKYO 100-8116

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyao, Hiroshi Tokyo, JP 17 65
Saito, Tsunenari Tokyo, JP 18 96
Sunaga, Satoshi Tokyo, JP 3 0

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